OpenWeather

Best for: Prototypes and side projects - free to start, no sales call; AI agents and automation - an agent-ready surface (MCP / llms.txt); Teams needing broad API coverage out of the box

Avoid if: You have strict compliance requirements

• ███▒░░░░░░
  35 / 100
  Agent friendliness
• ██████████
  100 / 100
  Pricing transparency
• ████████▒░
  85 / 100
  Setup speed
• ████▒░░░░░
  45 / 100
  Docs quality
• ██████████
  100 / 100
  Procurement ease
• █████░░░░░
  50 / 100
  Trust readiness

Scores are computed deterministically from this profile's published, sourced fields (pricing, compliance, capabilities, docs and developer-surface signals) - not from reviews or paid placement. Each axis is 0-100; an unknown signal scores 0 for that axis. Procurement ease is the inverse of buying friction (higher = easier to adopt).

Pricing model

Hybrid (base + usage) [2]openweathermap.org/price“60 API calls/minute, 1,000,000 calls/month”openweathermap.org/api/one-call-3“This separate subscription includes 1,000 calls/day for free and allows you to pay only for the number of API calls made to this product.”openweathermap.org/api/solar-energy-prediction“Pay only for the number of API calls made to this product”

Published pricing

✓ Yes [3]openweathermap.org/price“Prices are fixed. No additional or hidden fees apply. VAT is not included”home.openweathermap.org/subscriptions/unauth_subscribe/weather/startup“Current weather and forecast, Startup plan, 40 USD (VAT is not included)”

Free tier

✓ Yes [4]openweathermap.org/full-price“60 calls/minute, 1,000,000 calls/month”openweathermap.org/api/one-call-4“1,000 calls/day for free”openweathermap.org/appid“In case your weather data requirements go beyond our Free plan, you may consider signing up for our paid subscription plans”

Free tier details

Free plan with 60 calls/minute and 1,000,000 calls/month; includes current weather, 5-day 3-hourly forecast, weather maps 1.0, air pollution API, and geocoding. One Call API 3.0 and 4.0 each also include 1,000 free API calls/day under their separate pay-per-call subscriptions.

Self-serve signup

✓ Yes [5]openweathermap.org/appid“To start using our APIs, please sign up here”openweathermap.org/appid“Once you sign up using your email, the API key (APPID) will be sent to you in a confirmation email.”

Requires sales call

✗ No [6]openweathermap.org/appid“The API key is all you need to call any of our weather APIs.”openweathermap.org/faq“Sign up and get an API key (APPID) on your account page.”

Enterprise plan

✓ Yes [7]openweather.co.uk/pricing-corp“APIs have almost unlimited capacity of 200,000 calls per minute and 5 billion calls per month”openweathermap.org/faq“We have rich experience of cooperation with corporate customers providing them with an individual approach and personalised service.”openweather.co.uk/pricing-corp“The service offers a 99.9% uptime guarantee”

• Forecast
• Historical data
• Severe-weather alerts
• Hyperlocal / nowcast
• Air quality

Supported actions

current_weather, hourly_forecast, daily_forecast, minutely_forecast, historical_weather, weather_alerts, air_quality, geocoding, reverse_geocoding, weather_maps_tiles, precipitation_maps, solar_irradiance, solar_panel_energy_prediction, road_risk, fire_weather_index, statistical_weather, accumulated_parameters, bulk_history_download, weather_stations_management, one_call_unified [8]openweathermap.org/api/one-call-api“Current weather, Minute forecast for 1 hour, Hourly forecast for 48 hours, Daily forecast for 7 days, National weather alerts”openweathermap.org/api/air-pollution“Air Pollution API provides current, forecast and historical air pollution data for any coordinates on the globe.”openweathermap.org/api/geocoding-api“Geocoding is the process of transformation of any location name into geographical coordinates, and the other way around (reverse geocoding).”

Regions

global [9]openweathermap.org/api/air-pollution“Air Pollution API provides current, forecast and historical air pollution data for any coordinates on the globe.”openweathermap.org/api/solar-energy-prediction“Global coverage”openweathermap.org/api/weather-map-2“weather data and forecasting services via fast, reliable APIs, delivering historical, current, and forecast weather data for any location worldwide.”

Languages

English, Arabic, Bulgarian, Catalan, Czech, Danish, German, Greek, Finnish, French, Galician, Croatian, Hungarian, Italian, Japanese, Korean, Latvian, Lithuanian, Macedonian, Dutch, Polish, Portuguese, Romanian, Russian, Swedish, Slovak, Slovenian, Spanish, Turkish, Ukrainian, Vietnamese, Chinese Simplified, Chinese Traditional, Zulu [10]openweathermap.org/api/current“Albanian, Afrikaans, Arabic, Azerbaijani, Basque, Belarusian, Bulgarian, Catalan, Chinese Simplified, Chinese Traditional, Croatian, Czech, Danish, Dutch, English, Finnish, French, Galician, German, Greek, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Korean”en.wikipedia.org/wiki/OpenWeatherMap“The APIs support multiple languages, units of measurement, and industry standard data formats like JSON and XML”

Input types

lat/lon, city name, postal code, location name, state code, country code, Unix timestamp, station ID [11]openweathermap.org/api/current“You can call by city name or city name, state code and country code”openweathermap.org/api/geocoding-api“Zip/post code and country code divided by comma.”

Output types

JSON, XML, HTML, CSV, map tiles [12]openweathermap.org/api/current“Response format. JSON format is used by default. To get data in XML format just set up mode = xml.”openweathermap.org/history“History Bulk functionality that allows to extract historical data for any location for 47+ years in the past.”openweathermap.org/api/weathermaps“https://tile.openweathermap.org/map/{layer}/{z}/{x}/{y}.png?appid={API key}”

Webhooks

✗ No [13]openweathermap.org/api/push-weather-alerts“Then get all weather alerts to the specified endpoint via POST requests.”openweathermap.org/api/fire-index-api“Contact us via email to get access to our Fire Weather Index API”

Sandbox / test mode

✗ No

SDK languages

Python, PHP, Go, JavaScript

MCP server

✗ No

SOC 2

None

HIPAA

✗ No

GDPR

✓ Yes [14]openweather.co.uk/blog/post/security-and-compliance-weather-data-enterprise-systems“Privacy regulations such as GDPR set a high bar for how data is handled.”openweather.co.uk/privacy-policy“You have the right to make a complaint at any time to the Information Commissioner's Office (ICO), the UK supervisory authority for data protection”

ISO 27001

✓ Yes [15]openweather.co.uk/about“ISO 27001 (information security management)”openweather.co.uk/privacy-policy“ISO 27001 (Information Security Management)”openweather.co.uk/blog/post/security-and-compliance-weather-data-enterprise-systems“OpenWeather corporate security includes various areas such as network security, data security, application security, endpoint security, cloud security, etc.”

PCI DSS

✗ No

Published SLA

✓ Yes [16]openweathermap.org/full-price“Free/Developer: "95.0%" … Startup/Professional: "99,5%" … Expert: "99,9%"”openweather.co.uk/pricing-corp“Custom contract terms and negotiated pricing”

Rate limits

Free: 60 calls/minute, 1M calls/month; Startup: 600 calls/minute, 10M calls/month; Developer: 3,000 calls/minute, 100M calls/month; Professional: 30,000 calls/minute, 1B calls/month; Expert: 100,000 calls/minute, 3B calls/month. Error 429 returned when quota exceeded. [17]openweathermap.org/full-price“60 calls/minute … 600 calls/minute … 3,000 calls/minute … 30,000 calls/minute … 100,000 calls/minute”openweathermap.org/appid“all our tariff plans have caps on the quantity of calls made to API”openweathermap.org/appid“{ "cod": 429, "message": "Your account is temporary blocked due to exceeding of requests limitation"”

Known restrictions

Attribution required on Free through Professional plans: text 'Weather data provided by OpenWeather' with hyperlink and OpenWeather logo, Commercial use permitted under ODbL license, Accounts suspended for exceeding subscription limits, Push weather alerts (delivered via POST to customer endpoint) require contacting sales for setup and are not a standard self-serve webhook feature, One Call API 3.0 and 4.0 each require a separate 'One Call by Call' subscription from the main weather plans, Historical air pollution data available only from November 27, 2020 onwards, Weather Triggers API deprecated in 2025 [18]openweathermap.org/api/push-weather-alerts“Receive timely push notifications about severe weather.”openweathermap.org/faq“When it is required by your license you should place the following information in the visible part of your solution: 'Weather data provided by OpenWeather'”openweathermap.org/api/air-pollution“Historical data is accessible from 27th November 2020.”

• Docs
• API reference
• llms.txt

Docs rendering: static · llms.txt present

API style

rest

Base URL

https://api.openweathermap.org/data/2.5

Version

2.5

Versioning

url

Stability

ga

Auth methods

api_key

Idempotency keys

✗ No

Error format

vendor-specific

Rate limit

60 / minute

SDKs

• Python pyowm · repo
• PHP cmfcmf/openweathermap-php-api · repo
• Go github.com/briandowns/openweathermap · repo
• JavaScript weather-js · repo

• Auth docs
• Quickstart
• Webhook events

Launched

2012-01-01

Notable customers

Google, Samsung

• Visual Crossing Weather API

  "The World's Most Comprehensive Weather API for Businesses and Developers."

  Hybrid · free tier · public pricing · self-serve

• WeatherAPI.com

  "The ultimate weather and geolocation API trusted by 850,000+ users worldwide"

  Subscription · free tier · public pricing · self-serve

• Meteosource

  "Real-time, forecast & historical accurate data" provided through a Global Weather API leveraging machine learning models for "best-in-class accuracy."

  Subscription · free tier · public pricing · self-serve

• Open-Meteo

  "An open-source weather API that offers free access for non-commercial use - no API key required, 30+ weather models, historical data from 1940."

  Subscription · free tier · public pricing · self-serve

• Google Weather API (Google Maps Platform)

  "The Weather API provides comprehensive weather information - including temperature, precipitation, wind, cloud cover, and more - for locations across the globe."

  Usage · free tier · public pricing · self-serve

• Weatherbit

  "The High Performance Weather API for All of Your Data Needs"

  Subscription · free tier · public pricing · self-serve

OpenWeather alternatives · OpenWeather vs Visual Crossing Weather API · All Weather APIs APIs

Each field above carries a numbered source - hover for a preview, click to jump here.

1. ↑Description: openweathermap.org · openweathermap.org
2. ↑Pricing model: openweathermap.org · openweathermap.org · openweathermap.org
3. ↑Published pricing: openweathermap.org · home.openweathermap.org
4. ↑Free tier: openweathermap.org · openweathermap.org · openweathermap.org
5. ↑Self-serve signup: openweathermap.org · openweathermap.org
6. ↑Requires sales call: openweathermap.org · openweathermap.org
7. ↑Enterprise plan: openweather.co.uk · openweathermap.org · openweather.co.uk
8. ↑Supported actions: openweathermap.org · openweathermap.org · openweathermap.org
9. ↑Regions: openweathermap.org · openweathermap.org · openweathermap.org
10. ↑Languages: openweathermap.org · en.wikipedia.org
11. ↑Input types: openweathermap.org · openweathermap.org
12. ↑Output types: openweathermap.org · openweathermap.org · openweathermap.org
13. ↑Webhooks: openweathermap.org · openweathermap.org
14. ↑GDPR: openweather.co.uk · openweather.co.uk
15. ↑ISO 27001: openweather.co.uk · openweather.co.uk · openweather.co.uk
16. ↑Published SLA: openweathermap.org · openweather.co.uk
17. ↑Rate limits: openweathermap.org · openweathermap.org · openweathermap.org
18. ↑Known restrictions: openweathermap.org · openweathermap.org · openweathermap.org

Every field change, who made it, and when - from our audited data pipeline and editors.

1. 2026-06-15 Score Agent Friendliness: 25 → 35
2. 2026-06-15 Score Docs Quality: 25 → 45
3. 2026-06-14 Has Structured Data: (none) → No
4. 2026-06-14 API Reference URL: (none) → https://openweathermap.org/api/one-call-4
5. 2026-06-14 Robots Allows Agents: (none) → Yes
6. 2026-06-14 Capabilities: {} → {"forecast":true,"historical":true,"hyperlocal":true,"air_quality":true,"severe…
7. 2026-06-14 Summary Md: (none) → OpenWeather is a global weather data platform launched in 2012, offering REST A…
8. 2026-06-14 Score Agent Friendliness: 10 → 25
9. 2026-06-14 Best For: Prototypes and side projects - free to start, no sales call, Teams needing broa… → Prototypes and side projects - free to start, no sales call, AI agents and auto…
10. 2026-06-14 Score Docs Quality: 0 → 25
11. 2026-06-14 Rendering: (none) → static
12. 2026-06-14 Llms Txt Present: (none) → Yes
13. 2026-06-14 Llms Txt URL: (none) → https://openweathermap.org/llms.txt
14. 2026-06-14 Docs URL: (none) → https://openweathermap.org/api
15. 2026-06-14 Score Agent Friendliness: (none) → 10
16. 2026-06-14 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
17. 2026-06-14 Avoid If: (none) → You have strict compliance requirements
18. 2026-06-14 Best For: (none) → Prototypes and side projects - free to start, no sales call, Teams needing broa…
19. 2026-06-14 Score Trust Readiness: (none) → 50
20. 2026-06-14 Score Procurement Friction: (none) → 100
21. 2026-06-14 Score Docs Quality: (none) → 0
22. 2026-06-14 Score Setup Speed: (none) → 85
23. 2026-06-14 Score Pricing Transparency: (none) → 100
24. 2026-06-14 Enterprise Plan Available: set to Yes
25. 2026-06-14 SOC 2: set to none
26. 2026-06-14 HIPAA: set to No
27. 2026-06-14 GDPR: set to Yes
28. 2026-06-14 ISO 27001: set to Yes
29. 2026-06-14 PCI DSS: set to No
30. 2026-06-14 SLA Published: set to Yes
31. 2026-06-14 Data Retention Policy URL: set to https://openweather.co.uk/privacy-policy
32. 2026-06-14 Documented Rate Limits: set to Free: 60 calls/minute, 1M calls/month; Startup: 600 calls/minute, 10M calls/mon…
33. 2026-06-14 Rate Limit Window: set to minute
34. 2026-06-14 Known Restrictions: set to Attribution required on Free through Professional plans: text 'Weather data pro…
35. 2026-06-14 Auth Methods: set to api_key
36. 2026-06-14 Auth Docs URL: set to https://openweathermap.org/appid
37. 2026-06-14 API Style: set to rest
38. 2026-06-14 Base URL: set to https://api.openweathermap.org/data/2.5
39. 2026-06-14 API Version: set to 2.5
40. 2026-06-14 Versioning Scheme: set to url
41. 2026-06-14 Stability: set to ga
42. 2026-06-14 Quickstart URL: set to https://openweathermap.org/appid
43. 2026-06-14 Idempotency Supported: set to No
44. 2026-06-14 Error Format: set to vendor-specific
45. 2026-06-14 Webhook Events URL: set to https://openweathermap.org/api/push-weather-alerts
46. 2026-06-14 Requires Verification: set to No
47. 2026-06-14 Starting Price Usd: set to 40
48. 2026-06-14 Price Basis: set to month
49. 2026-06-14 Slug: set to openweather
50. 2026-06-14 Launched At: set to 2012-01-01

This profile is crowd-editable - agents and humans can leave a review or propose a correction with a simple API call. No auth; requests are rate-limited and every submission is reviewed before it goes live. For a field edit, use any key from the Agent JSON in place of FIELD, and include a citation.

curl -X POST https://apio.sh/api/feedback/openweather \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

curl -X POST https://apio.sh/api/suggest/openweather/FIELD \
  -H 'Content-Type: application/json' \
  -d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'

All the ways to contribute →