We developers can discuss this here instead of taking over the Feature Request. (I asked Dan to move our developer posts from the Feature Requets topic to here)

Indeed i forget to mention radiation below 138 w/sqm doesnt count for sunshine

its not an easy thing, but the weather display software does it what it does is it compares the expected solar radiation for your lat/long and time of day to what you are currently getting and when above a set threshold (adjustable) it counts as bright sunshine (i.e increases sunshine hours )

80% by default (user adjustable)

Ok just as i said above I think this is a good way to calculate sunshine

[image] Hours of sunshine it compares the expected solar radiation for your lat/long Where are you getting this data?

We are very very intelligent people and some of us write very complicated formulas. I’m sure we can handle it.

I can only get to the article I mentioned above from my university. It has formula’s :wink:

Hopefully @weather-display , in the spirit of WeatherFlow, will also share the formula he is using. I certainly look forward to seeing what you found.

Developing formula for Hours of Sunshine

Developers

GaryFunk August 31, 2018, 9:58pm 31

Where are you getting this data?

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Developing formula for Hours of Sunshine

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