<![CDATA[Cumulus MX - How to send data to Windy]]>To set up Cumulus MX for Windy is very straightforward.

To start you need to go to Cumulus Admin interface, then:

  • Navigate to Settings | Internet settings
  • Scroll down to the Windy.com entry and click the arrow to expand it.
  • Tick Enabled, optionally select Include UV, at this moment will be not displayed on web, but will be saved.
  • The Catch up option sends historic data for any gap if Cumulus is shut down and restarted. This is only applicable if you have a station with a data logger.
  • Set the Station ID, for most people with one station this will be the default value of zero.
  • Enter the API key, be careful to include it whole.
  • Set the upload Interval, this has a minimum value of 5 minutes.
  • Scroll to the bottom of the page and click Save.

Cumulus MX - Internet Settings - Windy.com

]]>https://community.windy.com/topic/11570/cumulus-mx-how-to-send-data-to-windyRSS for NodeSun, 09 Aug 2026 07:34:59 GMTThu, 19 Mar 2020 10:33:37 GMT60<![CDATA[Reply to Cumulus MX - How to send data to Windy on Fri, 13 Feb 2026 12:12:43 GMT]]>@Paulo-Nóbrega The difference between the API key and the station password is explained here:
https://stations.windy.com/docs
https://stations.windy.com/api-reference

]]>https://community.windy.com/post/224821https://community.windy.com/post/224821Fri, 13 Feb 2026 12:12:43 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Wed, 11 Feb 2026 23:17:55 GMT]]>Hi,
are there any issues with this or is it still working?
I've setup my cumulus and wanted to upload to windy but I always get a bad request error like:

2026-02-11 23:10:34 - Windy: ERROR - Response = BadRequest: {"update":{"update":{"stations":[],"observations":[{"si":0,"time":"2026-02-11T23:10:00.000Z","temp":11.5,"wind":1.8,"wind_dir":340,"wind_gust":5.8,"rh":85,"dew_point":9.1,"pressure":98300,"precip":0.1,"uv":0}]},"errors":{"observations":[],"stations":[]}},"result":{}}

My station is dm5ptVB.

I created an API key and on cumulus I'm using 0 in Station Index and the API key created on Windy. Although I'm confused with this stated on the API keys page:

An API key cannot be used to update observations for your station. You need a station password for that.
]]>https://community.windy.com/post/224773https://community.windy.com/post/224773Wed, 11 Feb 2026 23:17:55 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Wed, 09 Mar 2022 17:02:23 GMT]]>@korina
Problem solved
Your SSL certificate (Let's Encrypt R3 intermediate CA ) expired on 30 sep 2021 but the raspberry pi running cumulusmx still use it, so the solution was to disable the ca-certificate.

sudo apt install -y ca-certificates
sudo sed -i '/^mozilla\/DST_Root_CA_X3.crt$/ s/^/!/' /etc/ca-certificates.conf
sudo update-ca-certificates

PS: My station ID is f04aba5b

]]>https://community.windy.com/post/101366https://community.windy.com/post/101366Wed, 09 Mar 2022 17:02:23 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Sun, 09 Jan 2022 10:49:17 GMT]]>@sjg1976 @Korina
I think I've resolved the issue.
The Time wasn't set correctly, I've synced this with an NTP Time Source and that seems to have resolved the issue now.

]]>https://community.windy.com/post/96357https://community.windy.com/post/96357Sun, 09 Jan 2022 10:49:17 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Sun, 09 Jan 2022 10:09:58 GMT]]>@korina
Any idea what the issue could be, as the data looks like it's being sent through ok.

And it's accepted.

Also when I try and retrieve the API Key for my Station it always seems to regenerate a new one.

Is this expected behaviour?

]]>https://community.windy.com/post/96355https://community.windy.com/post/96355Sun, 09 Jan 2022 10:09:58 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Sun, 09 Jan 2022 09:29:47 GMT]]>@sjg1976 said in Cumulus MX - How to send data to Windy:

f048de60

Hello, this is an issue on your side probably. Try to restart the system.

]]>https://community.windy.com/post/96349https://community.windy.com/post/96349Sun, 09 Jan 2022 09:29:47 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Sat, 08 Jan 2022 21:13:47 GMT]]>@korina

@sjg1976
I got it all working.

I'm now having some issues again after after my Weather Computer Crashed.

I'm now getting the

code_text

2022-01-08 20:40:00.353 Windy: URL = https://stations.windy.com/pws/update/<>?station=1&dateutc=2022-01-08+20:40:00&winddir=293&wind=1.7&gust=4.9&temp=6.2&precip=0.00&pressure=9.9340&dewpoint=4.7&humidity=90&uv=0.0

2022-01-08 20:40:00.649 WeatherCloud: Response = Success (OK): 200

However since the Crash it seems like all the values are recording as Null.

My Station ID is ID: f048de60

]]>https://community.windy.com/post/96335https://community.windy.com/post/96335Sat, 08 Jan 2022 21:13:47 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Sun, 02 Jan 2022 20:09:10 GMT]]>@يامن Hello, what is your station ID?

]]>https://community.windy.com/post/95808https://community.windy.com/post/95808Sun, 02 Jan 2022 20:09:10 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Sun, 02 Jan 2022 20:09:00 GMT]]>@sjg1976 Hello, what is your station ID?

]]>https://community.windy.com/post/95807https://community.windy.com/post/95807Sun, 02 Jan 2022 20:09:00 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Fri, 31 Dec 2021 14:26:14 GMT]]>I'm having some issues in sending data to a New Station
I'm getiting the following Error

2021-12-31 14:20:02.527 Windy: URL = https://stations.windy.com/pws/update/<>?station=0&dateutc=2021-12-31+14:20:00&winddir=233&wind=2.1&gust=5.4&temp=14.8&precip=0.00&pressure=10.1551&dewpoint=12.5&humidity=86&uv=0.0
2021-12-31 14:20:02.850 Windy: ERROR - An error occurred while sending the request.

Have I missed something out somewhere?

]]>https://community.windy.com/post/95680https://community.windy.com/post/95680Fri, 31 Dec 2021 14:26:14 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Fri, 10 Dec 2021 09:03:13 GMT]]>Im having the same issue with CumulusMX 3.14.0(3159)

Windy: ERROR - The SSL connection could not be established, see inner exception.

Is your SSL certicate still valid?

]]>https://community.windy.com/post/94262https://community.windy.com/post/94262Fri, 10 Dec 2021 09:03:13 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Thu, 04 Nov 2021 09:31:44 GMT]]>@ott-drones Hello, then it is not possible, if there is no option for Windy.

]]>https://community.windy.com/post/91311https://community.windy.com/post/91311Thu, 04 Nov 2021 09:31:44 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Thu, 04 Nov 2021 05:23:26 GMT]]>Is it possible to send data from Cumulus 1, the original from which MX evolved?

There are no specific options for Windy, only Weather Underground, PWS, Weatherbug and WOW.

]]>https://community.windy.com/post/91291https://community.windy.com/post/91291Thu, 04 Nov 2021 05:23:26 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Wed, 03 Nov 2021 10:01:31 GMT]]>@doudidou Hello, our developers will look into this and find our if there is any issue on our side.

]]>https://community.windy.com/post/91251https://community.windy.com/post/91251Wed, 03 Nov 2021 10:01:31 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Thu, 28 Oct 2021 13:52:31 GMT]]>@korina Hi
I have programmed Windy for about 2 days but I just deactivated it while waiting for the solution because I get this cumulus error every 5 minutes : HTTP uploads are failing.
Last error: Windy: The SSL connection could not be established, see inner exception.

]]>https://community.windy.com/post/90888https://community.windy.com/post/90888Thu, 28 Oct 2021 13:52:31 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Thu, 28 Oct 2021 13:39:34 GMT]]>@doudidou said in Cumulus MX - How to send data to Windy:

f07ba109

Hi, it may take several hours till the stations shows up on Windy. When did you set up the station?

]]>https://community.windy.com/post/90886https://community.windy.com/post/90886Thu, 28 Oct 2021 13:39:34 GMT<![CDATA[Reply to Cumulus MX - How to send data to Windy on Thu, 28 Oct 2021 12:55:01 GMT]]>Hello,
Is it still possible to use CumulusMX?
Because I created my station (f07ba109), on the current version of Cumulus I entered :
Station Index : 0
API Key : ey*********************************************************************(...)
By the way, every time I refresh the page, the API Key is not the same when I click on "Show key", so I put in CumulusMX the last one I saw and copied.

And unfortunately Cumulus sends me back an error message, the connection to Windy failed.

Thanks !

]]>https://community.windy.com/post/90881https://community.windy.com/post/90881Thu, 28 Oct 2021 12:55:01 GMT