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• Frequently Asked Questions

  Whatever you wanted to know about Windy

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  A

  @Ondřej-Šutera
  Understood.
  As others said previously, I have to say I am disappointed with this information, that is kind of false advertising. Please get rid of the part where you advertise for archive data when subsribing to Windy Premium.
  Because I subscribed especially for this feature and realize only afterwards that the archive is of no us to me, because it basically has almost no data available.

• Announcements

  Announcements regarding Windy

  System Status
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  @jrafols
  The new tide data does not include extra-tidal water level. The data provider gives some information on his website
  The extra-tidal water levels are due to very low or very high atmospheric pressure.
  They can be due also to the wind-driven effect when strong winds are pushing the water to the coast, but depending heavily on the bottom seabed and the coast shape.
  Both effects leading to storm surge in extreme conditions.

• Your Feedback and Suggestions

  Have a question or a suggestion? This is the right place for them.

  Non English posts

  Windy Translation & Localization

  Bug Reports

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  @idefix37 I have only used it on the desktop until yesterday when I tried it in the app.
  I have used the desktop version successfully many times over the years and never had this trouble before.
  Neither the desktop nor the iPhone app work for me.
  So I can slide the start time back and forth on the timeline but it doesn't show the end time/duration and the weather doesn't change as I hover though the timeline.

• General Discussion

  A place to talk about whatever you want

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  S

  uhhh https://www.windy.com/upload/656a7538fa59f5ed81e6face

  _center_shadow

  Upload your own KML, GPX, GeoJSON file at https://www.windy.com/uploader

• Articles

  Severe weather informations, pictures and stuff

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  SpaceX CEO Elon Musk says the second Starship launch is postponed to no earlier than Saturday, Nov. 18 to replace a grid fin actuator on the launch stack

• Developers

  Windy API, Webcams API and Windy Plugins

  Windy API v4

  Windy Plugins

  Webcams API
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  Hello everyone,

  I operate a photovoltaic system with a large battery and source my electricity from a provider with dynamic pricing (in Germany, prices are notoriously high). During winter, the house battery remains largely unused due to limited sunlight, with only up to 20% of capacity being charged by the sun.

  Through a workaround, I am able to purposefully draw power from the grid to charge the house battery. The system is claimed to have an efficiency of 98%, but, taking a cautious approach, I assume a worst-case scenario of 90%. Charging the storage becomes economically viable when the electricity price exceeds 6 cents, and price fluctuations throughout the day are significant.

  I've automated this process to occur during the most cost-effective time window. Now, I just need to optimize the charging amount. Fully charging the battery at all times doesn't make sense, as I essentially give away excess electricity when the sun is shining. Therefore, I need information on the regional expectations for sun hours.

  Simultaneously, it would be helpful to know the forecasted wind conditions on a broader scale in the upcoming days. A high wind forecast serves as an indicator that electricity will become very cheap two days from now, before the announcement of spot market prices. In this scenario, it would be wise to keep the house battery minimally charged the day before.

  Hence, the question is: Which API provides reliable data for regional sun hours and overreaching wind forecasts?

  It's crucial that sun hours are reflected on a regional level and wind predictions are available on a broader, overreaching scale.