Data discrepancy between API and web interface for the same forecast model
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Hi Windy team,
I’ve noticed significant differences in forecast data when using the same model (e.g., ECMWF, GFS) via the API compared to the values displayed on the Windy web interface. For identical locations and timestamps, parameters like temperature, wind speed, or precipitation show inconsistent results.Could you clarify possible reasons for this? Potential factors I’d appreciate insight on:
1.Are there differences in data processing or interpolation methods?
Thanks in advance for helping resolve this!
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@87898812 Hello, could you please provide any examples, that can be compared?
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HELLO，Test Point 27.2511, 121.69086667
1.this is the API request result.
2.this is the Web-based results display
For example, at 2025-06-09 17:00:00:
API returns:
wind_u = 6.79, wind_v = 6.41
Synthesized wind speed l = 9.33
gust-surface = 8.39
Web interface displays:
Synthesized wind speed l = 5
gust-surface = 7
Summary of two issues:1.Inconsistency between web-displayed data and API data;
2.Gust values should typically be higher than sustained winds, yet the API reports the opposite. -
Test Point 27.2511, 121.69086667
API request:
Web-based results display:For example, at 2025-06-09 17:00:00:
API returns:
wind_u = 6.79, wind_v = 6.41
Synthesized wind speed l = 9.33
gust-surface = 8.39
Web interface displays:
wind = 5
gust-surface = 7
Summary of two issues:1.Inconsistency between web-displayed data and API data;
2.Gust values should typically be higher than sustained winds, yet the API reports the opposite. -
@87898812 Do you use Professional license for API? I can't see any Premium tier in your account.
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@Suty Yes, you can see that the API request contains a "key," but I have hidden it.
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@Suty Yes, you can see that the API request contains a "key," but I have hidden it.
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@87898812 Okay, can you share the API key here in our chat window?
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@Suty ok,I have share you
