[HN Gopher] Open-Meteo is a free and open-source weather API for...
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Open-Meteo is a free and open-source weather API for non-commercial
use
Author : Brajeshwar
Score : 77 points
Date : 2026-01-12 15:36 UTC (7 hours ago)
(HTM) web link (open-meteo.com)
(TXT) w3m dump (open-meteo.com)
| gnabgib wrote:
| Popular in 2021 (443 points, 147 comments)
| https://news.ycombinator.com/item?id=28499910
| wolvoleo wrote:
| I used to use this with home assistant but you seem to have to
| give a credit card now even for the free access :(
| rdmuser wrote:
| The creator has a hn account:
| https://news.ycombinator.com/user?id=meteo-jeff
|
| His initial comment describing it:
| https://news.ycombinator.com/item?id=28504740
| abetusk wrote:
| This is a very confusingly worded.
|
| I think what they mean is that the data and code itself is
| libre/free/open [0] [1] but the API access is essentially rate
| limited for non-paying customers?
|
| [0] https://open-meteo.com/en/licence (CC-BY)
|
| [1] https://github.com/open-meteo/open-meteo/blob/main/LICENSE
| (AGPL)
| tedivm wrote:
| Most APIs, even ones you pay for, are rate limited. I don't
| think having a rate limit changes the open nature of the API.
| I'm looking forward to seeing if I can plug this in to my Home
| Assistant install for weather so I can compare it to Pirate
| Weather which I use now.
| abetusk wrote:
| Agreed. I think the source code is open and I think the data
| is open. The by-line is just a bit confusing.
|
| I think what they're trying to say is "Our service is
| completely open source. Our code is open source and our data
| is open source. We provide reasonable rate limits to our API
| access for non-paying customers. See our pricing plan if
| you'd like to become a commercial user and increase your rate
| limits".
| open-meteo wrote:
| Hi, creator of Open-Meteo here. The limits are 600 calls / min,
| 5.000 calls / hour and 10.000 calls / day. Limits are applied
| on an IP basis.
|
| This is not ideal for shared hosting services like cloudflare
| workers, but is the easiest and privacy-friendly way to limit
| access to fair-use.
|
| Additionally, weather data is uploaded to a AWS S3 open-data
| sponsorship and you can run your own API instances (even
| commercially). The only draw back is, that a lot of data needs
| to transferred. I am working on a S3 cloud-native approach, but
| it is still in testing.
|
| The free tier is cross-financed by commercial customers that
| use the service for energy forecasting, agriculture planing or
| wild fire prevention. There is no external funding, VCs, or
| whatsoever, the code is build in public on GitHub and I intent
| to continue running the free API service as is.
| linker3000 wrote:
| I tried this with Node-RED for a Meshtastic project (MeshBop),
| but experienced occasional timeouts even when only making a
| handful of calls per hour. In the end I moved to Met Norway's API
| for UK/EU weather.
| alsetmusic wrote:
| What timing. I was on a hunt only yesterday for free weather APIs
| for scripting on a personal hobby. I recognize the page design,
| but I can't recall how it rated compared to the competition nor
| whether it made the list to use. I'll revisit when I get back to
| my computer. I live HN.
| boxed wrote:
| Open-Meteo is amazing. I use it for my iOS weather app Frej:
| https://github.com/boxed/frej
| hazbot wrote:
| We are a happy paying customer at $DAYJOB.
|
| Also, I looked into omfiles for a project recently, I was very
| impressed with their speed and blown away by the compression
| ratios!
| ChrisArchitect wrote:
| See also Pirate Weather https://pirateweather.net/ which powers
| Merry Sky
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(page generated 2026-01-12 23:01 UTC)