South Africa Weather Service Tenders: How To Find, Apply For, And Win

Severe storms, floods, droughts, South Africa’s climate risks are rising. That’s why the South African Weather Service (SAWS) is investing in better observing networks, smarter data systems, and resilient infrastructure. For you, that means a steady pipeline of opportunities. If you’ve been scouting for South Africa Weather Service tenders but aren’t sure how to break in, or how to improve your win rate, this guide is your step‑by‑step playbook. You’ll learn what SAWS buys, where to find tenders and alerts, how to meet compliance requirements, how bids are scored, and what it takes to deliver once you win. We’ll keep it practical with local examples, recent trends, and actionable advice for suppliers and small businesses. Ready to position your company to win SAWS tenders and grow sustainably? Let’s immerse.

What The South African Weather Service Buys And Why It Matters

SAWS runs the national meteorological service, issues warnings, and supports aviation, maritime, agriculture, and disaster management. Its supply chain spans everything from sensors to software to construction works. Understanding the buy‑profile helps you target the right bids.

Typical Goods And Equipment

Observing equipment: automatic weather stations (AWS), rain gauges (tipping‑bucket, weighing), anemometers, barometers, radiation sensors, visibility sensors, ceilometers.
Remote sensing: weather radar components and refurb kits, wind profilers, upper‑air (radiosonde) systems and consumables (balloons, helium/hydrogen, sondes), lightning detection network spares.
IT and data: servers, storage arrays, high‑availability networking, firewalls, laptops, rugged tablets for field teams, IoT gateways, time‑sync (NTP/PTP) devices.
Power and enclosures: solar PV kits for remote sites, batteries, charge controllers, enclosures, masts/towers, fencing, surge and earthing equipment.
Operational consumables: calibration tools, desiccants, filters, cabling, connectors, PPE for technicians.

Why it matters: SAWS prioritises reliability and data integrity. If you supply equipment, expect strict specs, environmental ratings (IP65+), calibration standards, and long‑term spares availability.

Technical And Professional Services

Installation, calibration, and commissioning of AWS, radar, and upper‑air systems.
Preventive and corrective maintenance SLAs (countrywide response times, MTBF/uptime targets).
Software engineering: data ingestion pipelines, APIs, forecasting models, DevSecOps, cybersecurity hardening, POPIA‑compliant data handling.
Specialist consulting: systems integration, RF engineering, lightning protection design, telecom links (microwave, satellite), SCADA/telemetry.
Training and change management for SAWS staff.

Trend watch: There’s growing demand for data‑as‑a‑service, cloud integration, AI/ML for nowcasting, and cyber‑resilience.

Infrastructure And Works

New build and refurb: instrument shelters, foundations, towers/masts, equipment rooms, radar radomes, perimeter fencing.
Civil/electrical works: trenching, earthing grids, lightning protection, off‑grid solar with hybrid inverters, generator backups.
Minor building works at regional offices and airports.

If you’re a contractor, check CIDB grading for works contracts and expect stringent safety files, method statements, and quality control on site.

Where To Find SAWS Tenders And Alerts

You’ll see SAWS opportunities published across a few official channels. Cast a wide net, then filter fast.

National ETender Portal And Tender Bulletin

The National Treasury eTender Portal (etenders.treasury.gov.za) is the primary source for national, provincial, and entity tenders. Search for “South African Weather Service” or “SAWS.” Set up saved searches and alerts by category (e.g., Electrical Equipment, IT Services, Civil Works).
The Government Tender Bulletin may carry summaries and corrigenda. Always follow the link to the full advert and bid documents.

Tip: Use CPV/industry terms in your searches, “radar,” “AWS,” “upper‑air,” “telemetry,” “solar,” “maintenance,” “calibration.”

SAWS Procurement Page And Briefings

SAWS posts tenders, RFQs, and briefing details on its procurement/supply chain page. Pay attention to compulsory briefing sessions (often for works or complex installations). Non‑attendance can render you non‑responsive.
Download ALL attachments: specs, drawings, pricing schedules, and addenda. Addenda often change closing dates or technical requirements.

Using ETender SA To Track And Filter Opportunities

ETender SA aggregates verified tenders and lets you filter by buyer (SAWS), location, industry, and closing date, useful when you don’t have time to monitor multiple portals.
Set custom alerts for “South Africa Weather Service tenders” so you don’t miss mid‑week publications or short‑turnaround RFQs.
Shortlist, assign team tasks, and keep a pipeline view, critical if you’re chasing multiple opportunities across SAWS and allied entities (Aviation, Water, Disaster Management).

Eligibility, Registration, And Compliance Basics

Before you price a single line item, sort out your compliance. SAWS, like other organs of state, can’t award to non‑compliant bidders.

CSD, Tax Compliance, And Company Documents

Register on the Central Supplier Database (CSD). Keep your record active and linked to your directors. SAWS will verify your CSD number.
Tax compliance: Maintain a valid SARS Tax Compliance Status (TCS) PIN. Expired or “non‑compliant” status is a fast disqualification.
Company docs: Registration (CIPC), ID copies of directors, resolution/authority to sign, and proof of banking. Many bids require proof of address and insurance (public liability, professional indemnity for consultants).

BBBEE, Local Content, And Designated Sectors

B‑BBEE: Submit a valid affidavit (for EMEs/QSEs) or a verification certificate. B‑BBEE level influences preference points under PPPFA evaluation.
Local content: Certain items fall under designated sectors (e.g., steel products, transformers, power cables, textiles/PPE, two‑way radios, solar PV components, valves). If the bid includes a local production requirement, complete SBD 6.2 and annexures with supporting declarations and calculation sheets. Non‑compliance = non‑responsive.
Specific goals: Under the Preferential Procurement Regulations, 2022 (as amended), bids may allocate points for goals like promoting SMMEs, women, youth, or persons with disabilities. Provide evidence.

Industry Certifications, OEM Letters, And CIDB (When Required)

OEM/dealership letters: For specialized equipment (radar parts, radiosonde systems, sensors), SAWS may require proof of authorized distributorship or manufacturer support for warranty and spares.
Technical certifications: ISO 9001/14001/45001 for quality, environment, and safety: OEM training certificates for installers: electrical compliance (CoC) for power works.
CIDB: Construction‑related works usually specify minimum CIDB grading. Joint ventures can combine gradings, declare the JV properly and attach a JV agreement.

How To Read SAWS Bid Documents Without Missing Mandatories

SAWS bid packs are detail‑heavy. A disciplined reading strategy prevents painful non‑responses.

Scope, Deliverables, And Technical Specifications

Start with the scope: What problem is SAWS solving? E.g., “Refurbish and calibrate 25 AWS across Limpopo with solar upgrades and telemetry to HQ.”
Extract deliverables: Bill of quantities (BOQ), site list, spares, manuals, training sessions, as‑built drawings, data integration.
Technical specs: Environmental ratings, measurement ranges/accuracy, communication protocols (SDI‑12, Modbus, LTE/SAT), data formats (BUFR/GRIB), interoperability with existing SAWS systems.
Build a compliance matrix: Row for each spec, column for “Compliant/Not Compliant/Notes.” Attach datasheets referencing the exact clause/page.

Functionality Criteria And Thresholds

Many SAWS tenders use a functionality (technical) threshold before price/B‑BBEE points. Typical criteria: methodology, experience with similar installations, key staff CVs, references, equipment list, and project plan.
Watch the minimum score (e.g., 70/100). If you can’t meet it, don’t spend time pricing. If you can, tailor your response to the criteria, literally mirror the headings and answer point‑by‑point.

Special Conditions, Site Meetings, And Queries

Special conditions often include compulsory briefings/site inspections, OEM requirements, data security rules, and warranty durations. Treat them as mandatory unless stated otherwise.
Site meetings: Record attendance registers, ask clarifying questions, and take photos/measurements. Confirm whether attendance is compulsory.
Queries and addenda: Submit questions by the cut‑off date via the indicated email. Monitor for addenda and acknowledge them in your returnable documents. If an addendum changes the BOQ, re‑price accordingly.

Building A Competitive Technical And Pricing Proposal

Strong bids are credible, clear, and easy to score. The goal is to make the evaluator’s job simple while proving you can deliver safely, on time, and within budget.

Methodology, Team, And Past Performance

Methodology: Explain the end‑to‑end approach, mobilisation, site assessment, design, installation, testing/calibration, integration, training, and handover. Include quality checks, safety measures, and acceptance tests.
Program and resourcing: Provide a Gantt or timeline with key milestones and dependencies (e.g., OEM lead times). Name a project manager and site leads.
Team CVs: Match CVs to the scope (RF engineer for radar, instrumentation techs for AWS, certified electricians for PV). Highlight OEM training and years of experience.
Past performance: Include 3–5 comparable projects with client references, values, dates, and outcomes (uptime achieved, data accuracy improvements). Where permitted, include letters of good performance.

Lifecycle Costing, Spares, And Maintenance Plans

Don’t compete on price alone. SAWS worries about total cost of ownership (TCO) over 5–10+ years.
Show lifecycle costing: purchase, shipping, installation, calibration tools, software licenses, power consumption, spares, consumables, and maintenance visits. If your solution uses less power or has longer calibration intervals, quantify the savings.
Spares and stockholding: List critical spares with lead times. Propose a minimum on‑site kit for remote stations.
Maintenance: Present a preventive maintenance schedule, call‑out SLAs (e.g., 8‑hour response, 48‑hour fix), and remote monitoring options. Commit to firmware updates and security patches.

Delivery Timelines, Warranties, And Risk Mitigation

Timelines: Align your schedule with the bid validity and closing dates for the financial year. Flag import lead times and customs risks.
Warranties: Offer clear terms (e.g., 24 months parts and labor, battery performance warranties). Define turnaround times for DOA and repairs.
Risk plan: Identify risks (weather delays, site access, component shortages) and mitigations (buffer stock, alternative suppliers, access protocols). Include safety and environmental plans (method statements, permits, waste disposal).

Submission Mechanics And Deadlines

Good bids can fail on admin. Nail the mechanics so your proposal is read and scored.

Electronic Vs. Physical Submission Essentials

Electronic: If SAWS allows email/portal submissions, follow file size limits, allowable formats (usually PDF for narrative, XLS/XLSX for pricing), and encryption instructions. Submit early to avoid timeouts.
Physical: Use the correct tender box and address. Pack documents neatly in lever arch files with dividers matching the returnables list. Include a USB if required.

Proper Labeling, File Formats, And Bid Forms (SBDs)

Label with tender number, description, and your company name on envelope/subject line and each volume.
Complete all SBD forms: commonly SBD 1 (invitation), SBD 3.1/3.2/3.3 (pricing), SBD 4 (declaration of interest), SBD 6.1 (preference points), SBD 6.2 (local production, if applicable), SBD 8 and 9 (past SCM practices and independent bid determination).
Keep editable pricing schedules in Excel if requested, plus a signed PDF version. Don’t lock cells unless instructed.

Avoiding Late Or Non-Responsive Bids

Use a compliance checklist and two‑person verification before submission.
Time management: aim to submit 24 hours early. Couriers get lost: portals can lag. Late is late.
Non‑responsive pitfalls: missing TCS PIN, unsigned SBD 1, omitted mandatory briefing certificate, wrong CIDB grade, no proof of OEM authorization, or incomplete local content forms.

How SAWS Evaluates And Awards Tenders

Understanding the scoring model helps you shape a winning strategy.

Functionality Scoring Then 80/20 Or 90/10 Preference Points

Stage 1: Administrative responsiveness (all forms, compliance). Fail here and you’re out.
Stage 2: Functionality (technical) scoring against published criteria. You must meet or exceed the minimum threshold to proceed.
Stage 3: Price and preference points under the Preferential Procurement Policy Framework Act (PPPFA). Smaller bids typically use 80/20 (80 points price, 20 points specific goals/B‑BBEE). Larger, high‑value bids use 90/10. Confirm the applicable system in the bid document.
Pricing tip: Provide a clean, arithmetically correct schedule. If the bid allows, include optional value‑adds in a separate section so you don’t compromise comparability.

Local Production, Subcontracting, And Set-Asides

Where local content is designated, SAWS evaluates your declarations and may audit evidence. Ensure your supply chain is aligned before you commit.
Subcontracting: If mandatory (e.g., minimum 30% to SMMEs for certain works) or if specific goals target supplier development, clearly identify subcontractors, roles, and percentages. Include their CSD and compliance docs.
Set‑asides or targeted goals: Some bids may target youth-, women-, or disability‑owned businesses. If you qualify, submit proof: if not, consider partnering meaningfully.

Negotiation, Due Diligence, And Award Notices

Clarifications/negotiations: SAWS may request clarifications or negotiate on price within rules. Be ready with backup calculations and alternatives that don’t dilute scope.
Due diligence: Expect site visits to your premises, reference checks, and verification of equipment/OEM support.
Award: Notices are published on official portals. If unsuccessful, request a debrief, polite and factual. Use feedback to improve your next submission.

After The Award: Managing Delivery And Compliance

Winning is the start. Delivery performance influences your reputation and future awards.

SLAs, KPIs, And Reporting

Review the Service Level Agreement (SLA) carefully: uptime targets (e.g., >98% data availability), response/fix times, calibration intervals, safety requirements, and reporting formats.
Establish a reporting cadence: weekly progress updates during deployment: monthly SLA dashboards during operations. Track incidents, root causes, and corrective actions.
Data and security: Follow POPIA, cyber policies, and access controls, especially if you handle operational data or connect to SAWS networks.

Change Control, Variations, And Penalties

Use formal change control for any scope/quantity changes. No verbal agreements.
Keep a risk and issues log. When delays arise (weather, permits, imports), notify SAWS early with mitigation steps.
Understand penalties/liquidated damages and how to avoid them. Proactive communication and documented recovery plans go a long way.

Invoicing, Payment Terms, And Performance Reviews

Invoicing: Match the PO lines, attach delivery notes, commissioning certificates, and timesheets where relevant. Incorrect invoices delay payment.
Payment terms: Government entities typically pay within 30 days of a valid invoice. Track due dates and follow up professionally.
Close‑out and lessons learned: At completion, submit as‑built docs, warranties, training sign‑offs, and a final report. Ask for a performance letter, valuable evidence for your next SAWS bid.

Conclusion

South Africa Weather Service tenders reward suppliers who blend technical credibility with disciplined compliance and crisp pricing. If you can prove reliability, accurate sensors, robust installs, secure data pipelines, and back it with responsive maintenance, you’ll stand out. Start by tightening your CSD and tax status, gathering OEM proof, and building a reference‑rich capability pack. Then track opportunities consistently and respond with a structured, evaluator‑friendly proposal that meets every mandatory.

Want a faster, simpler way to find quality opportunities? Visit eTender SA today to browse verified SAWS tenders, set smart alerts, and move first on the bids that fit your strengths.

Frequently Asked Questions

What does the South African Weather Service buy through tenders?

SAWS procures observing equipment (AWS, rain gauges, anemometers), remote sensing (radar parts, radiosondes), IT and data systems, power/solar and enclosures, and operational consumables. It also buys installation, calibration, maintenance SLAs, software engineering, cybersecurity, and specialist consulting, plus civil/electrical works for shelters, towers, radomes, and fencing—prioritizing reliability and data integrity.

Where can I find South Africa Weather Service tenders and set alerts?

Start with the National Treasury eTender Portal (etenders.treasury.gov.za) and the Government Tender Bulletin. Check the SAWS procurement page for RFQs and compulsory briefings. Tools like ETender SA help filter by buyer, industry, and closing date and can send alerts for “South Africa Weather Service tenders.”

What compliance documents do I need to bid on SAWS tenders?

Register on the Central Supplier Database (CSD) and keep a valid SARS Tax Compliance Status (TCS) PIN. Prepare CIPC docs, director IDs, banking proof, and required insurance. Submit B-BBEE proof, SBD forms, and local content declarations when designated. Works may require CIDB grading and OEM authorization letters for specialized equipment.

How are South Africa Weather Service tenders evaluated and scored?

Evaluation typically follows three stages: administrative responsiveness (forms and compliance), functionality scoring against published criteria with a minimum threshold, then price and preference points under PPPFA (usually 80/20 for smaller bids or 90/10 for larger ones). Clean pricing schedules and evidence-backed technical responses improve your final score.

Can foreign suppliers bid on SAWS tenders?

Yes, foreign suppliers can bid if they meet South African public procurement rules. You’ll need CSD registration, valid tax status (or arrangements), and compliance with any designated local content. Partnering with a local firm can help with CIDB requirements, site response SLAs, and after-sales support, plus easing import and logistics lead times.

How much time do I usually have to respond to SAWS tenders?

Timelines vary. Larger, complex SAWS tenders commonly allow 3–6 weeks from publication to closing, while RFQs can be as short as 5–10 working days. Add time for compulsory briefings and addenda. Aim to submit at least 24 hours early to avoid portal delays or courier risks.