Terms of Service

Last updated: 14 October 2026

These Terms of Service ("Terms") are a legal agreement between you (the business or individual using the service, "you") and WeatherLabs (the operator described below, "WeatherLabs", "we", "us"). By creating an account, subscribing to an Application, using an API key, or otherwise using the Service, you agree to these Terms. If you are agreeing on behalf of an organisation, you confirm you are authorised to bind that organisation.

The service is offered business-to-business (B2B) — it is intended for use by businesses, developers and other professional users, not consumers. If you are a consumer in the UK or EU, you may have additional statutory rights that these Terms do not remove or limit; nothing here affects those rights.

1. Who we are & definitions

WeatherLabs is operated by WeatherLabs Ltd, a limited company registered in England and Wales under company number 17265453, with its registered office at 2 Arnewood House, Everton Road, Lymington, SO41 0HF, United Kingdom.

In these Terms:

• Service — the WeatherLabs HTTP API ("API"), the WeatherLabs website with its explorer, playground and Account page (together, the "Site"), and the Applications.
• Application — an interactive weather application on the Site, such as Aviator or Route, sold as a monthly subscription for one user.
• Content / Data — the forecast data, fields, aggregates and other output returned by the API, and the information published on the Site.
• API key — a credential we issue that identifies your account and authorises requests to the API.
• Grant — what an Application lets your account read from the API while it is active: the forecast models, variables, lead-hour horizon and endpoints it names, its monthly data allowance and, for gridded reads, its finest resolution. Your account's access is the union of the Grants of every Application it holds, whichever key, sign-in or assistant makes the request. We may also grant an Application to an account without a subscription, for a period we state.
• Paddle — Paddle.com Market Limited and its affiliates, our payments provider and merchant of record (see section 5).

2. The service

The Service provides programmatic access to weather forecast data derived from the NOAA Global Forecast System (GFS) and Global Ensemble Forecast System (GEFS) models, together with a website and Applications for exploring and using that data. The underlying model output is produced by the United States National Oceanic and Atmospheric Administration (NOAA) and is in the public domain; WeatherLabs is an independent service and is not affiliated with, authorised, endorsed by, or sponsored by NOAA, the US National Weather Service (NWS), or any government agency. What we provide is the processing, hosting, transformation and delivery of that data as a service.

Beta. The Service is currently offered in beta. It is provided without any service level agreement (SLA): we do not commit to a particular level of uptime, latency, throughput, or data freshness, and the Service may be unavailable, delayed or incomplete at any time. We may add, change, withdraw or deprecate features, endpoints, variables, models or data without liability, in line with our published API stability and deprecation policy (see the API documentation). Where reasonably practicable we will give advance notice of breaking changes by email and/or via the Site.

Capabilities described as planned or "roadmap" are not part of the Service unless and until they are made generally available; we make no commitment to deliver them.

3. Accounts & API keys

• You must provide accurate account information (including a valid email address) and keep it up to date.
• API keys are secret. You are responsible for keeping your keys confidential and for all activity that occurs under your keys, whether or not authorised by you. Do not embed keys in client-side code, public repositories, or URLs.
• API keys are issued by us on request, up to a maximum of three (3) API keys per account. You can revoke a key at any time from your Account page, and revocation takes effect promptly; to replace a key, ask us for a new one.
• If you believe a key has been compromised, revoke it immediately and contact us. We may revoke or rotate keys, or suspend an account, where we reasonably believe this is necessary to protect the Service or other users.
• You must be able to form a binding contract to use the Service, and you must not use the Service if we have previously terminated your account for breach.

4. Applications

• What a subscription includes. Each Application is a separate monthly subscription. While it is active, you can use that Application with live forecasts, and your account has that Application's Grant (shown in your Account). Without an account, an Application shows a saved sample.
• One user. A subscription is for one person, signed in with their own account. Do not share your sign-in; each additional user needs their own subscription.
• Billing and cancellation. Application subscriptions are billed, renewed and cancelled as set out in section 5. When a subscription ends, the Plan it granted no longer applies to your account, and the Application may show only its saved sample.
• Places, routes and alerts. Places, routes, alert drafts, units and timezone that you save while signed in are stored in your account, so they follow you between devices; in Account › Your data you can download them, keep them on your devices only, or delete them. Your mobile number, organisation, role, quiet hours, questions, notes and schedules stay in your browser, and so does everything you save while signed out or keep on your devices only: we cannot recover those if your browser data is cleared. Ending a subscription does not delete any of them. Point alerts are not delivered yet: until they launch, an alert is a draft that is checked only while your Account page is open, and nothing is sent.
• Not for safety-of-life use. Applications present the same Data as the API. The weather data disclaimer in section 8 applies to everything an Application shows, including its verdicts, limits and alerts. Aviation and marine Applications provide planning context only and are not official briefings.

5. Subscriptions & billing

Paddle is our merchant of record. When you purchase an Application subscription, your contract for payment is with Paddle, who sells the subscription to you as the seller/merchant of record, collects payment, and handles applicable VAT and sales taxes. Paddle's own buyer terms apply to the payment transaction in addition to these Terms. We do not store your card details.

• Prices are set in pounds sterling (GBP, £) and include VAT and any other sales tax Paddle is required to charge. Paddle may offer to charge you in your local currency, converted from the GBP price; the total shown at checkout is what you pay.
• Subscriptions are billed monthly in advance and auto-renew each period until cancelled. You can cancel at any time; cancellation takes effect at the end of the current billing period, and you keep access until then. We do not provide pro-rata refunds for the unused part of a period (see the Refund & Cancellation Policy).
• Quotas & overage. Each Application includes a monthly data allowance; your account's allowance is the sum over the Applications it holds, and an Application that ends part-way through a month counts until the end of that calendar month (UTC). Usage is metered as the volume of decoded forecast data you retrieve (values returned × 4 bytes each), with no minimum charge per request. Quotas apply per customer, across every key and sign-in. When you reach your quota, further requests are rejected (HTTP 429) rather than billed: there are no overage charges. To do more, add an Application or wait for the month to reset.
• Upgrades, downgrades & cancellation. A new subscription, including one for an additional Application, starts as soon as Paddle confirms your payment. Cancellations take effect at the end of the current billing period; the Application's Grant and allowance remain available until then.
• Failed payments. If a renewal payment fails, we (via Paddle) may retry. After a short grace period your access may be suspended — see the Refund & Cancellation Policy for the current grace period.

An account without an Application can use every Application's saved sample and the public Explorer, but cannot read live forecasts through the API. Complimentary Grants and trials may be subject to lower quotas and additional fair-use limits, and we may change or withdraw them on reasonable notice.

6. Acceptable use

Your use of the Service must comply with our Acceptable Use Policy (AUP), which forms part of these Terms. In summary, you must not attempt to circumvent quotas, rate limits or metering; must not resell or bulk-redistribute raw API responses as a competing dataset; must not abuse, overload, probe or attack the Service; and must not use the Service for unlawful purposes. We may throttle, suspend or terminate access for breach of the AUP (see section 11).

7. API & data licence

Subject to these Terms and your Applications' Grants, we grant you a non-exclusive, non-transferable, revocable licence to access the API and use the Data:

• for your internal business purposes and within your own applications, products and services that add value beyond simply re-exposing our Data; and
• including the right to cache, store and process the Data you retrieve, and to train your own internal machine-learning models on it.

You must not:

• bulk-redistribute or resell the raw Data (or a substantial copy of it) as a standalone or competing dataset, data feed, or weather API; or
• present the Data in a way that implies endorsement by, or affiliation with, WeatherLabs, NOAA or the NWS.

About the source data. The underlying NOAA model output (GFS and GEFS) is public domain and is available free of charge elsewhere (for example, directly from NOAA). What you are paying us for is the service — the ingestion, processing, restructuring for fast queries, hosting, reliability and the API around it — not exclusive rights to the raw numbers. Attribution to WeatherLabs is appreciated but not required. If you do credit a source for the underlying model, please attribute NOAA/NWS accurately.

9. Limitation of liability

Nothing in these Terms excludes or limits our liability where it would be unlawful to do so under the laws of England and Wales — including liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot legally be excluded.

Subject to that:

• we are not liable for any indirect or consequential loss, or for loss of profits, revenue, business, goodwill, anticipated savings, or data, arising out of or in connection with the Service, whether in contract, tort (including negligence), or otherwise; and
• our total aggregate liability arising out of or in connection with the Service and these Terms is limited to the total fees you paid to use the Service in the twelve (12) months immediately before the event giving rise to the claim. Where you use only free tiers, that amount may be zero, and our aggregate liability is correspondingly limited.

Because the Service is provided in beta and without an SLA, you accept that you use it at your own risk and should not deploy it for any purpose where the consequences of error, delay or downtime are not acceptable to you.

10. Indemnity

As a business user, you agree to indemnify and hold harmless WeatherLabs against any claims, losses, liabilities, damages, costs and expenses (including reasonable legal fees) arising out of or in connection with: (a) your use of the Service or the Data in breach of these Terms or the AUP; (b) your applications or products that incorporate the Data; or (c) your violation of any law or the rights of a third party. This section does not apply to consumers.

11. Termination

You may stop using the Service and close your account at any time from your Account page (which revokes your keys and cancels any subscription, effective at the end of the billing period). We may suspend or terminate your access — immediately where necessary — if you breach these Terms or the AUP, if required by law, to protect the Service or other users, or if your payment is not made when due. On termination, your right to use the Service ends and your API keys stop working; sections that by their nature should survive (including licence restrictions, disclaimers, liability, indemnity and governing law) will continue to apply.

12. Changes to these terms

We may update these Terms from time to time. If we make material changes, we will give reasonable notice by email to the address on your account and/or by posting a notice on the Site, and will update the "Last updated" date above. Changes take effect from the date stated in the notice; your continued use of the Service after that date constitutes acceptance. If you do not agree to a change, you should stop using the Service and may cancel your subscription.

13. Governing law & jurisdiction

These Terms and any dispute or claim arising out of or in connection with them (including non-contractual disputes) are governed by the law of England and Wales, and the courts of England and Wales have non-exclusive jurisdiction. If you are a consumer, this does not deprive you of the protection of mandatory rules of the country in which you live.

14. Contact

Questions about these Terms can be sent to contact@weatherlabs.io (general enquiries: hello@weatherlabs.io). Our full legal details are in section 1.