Topic: Humidity sensor setup?

[bonjour]

Hello!
I'm building a weather station.
For T/H, I use an am2315 sensor.
Humidity seems a bit to high when I compare to other stations in my area. Or let me explain.
When humidity is below 70% my sensor is in the average of other stations.
Above 70% it seems too high.
I use the awekas quality check to compare with other stations
See attached screenshot.

I'm not sure how to proceed. I wonder if t my sensor gets some dew (more than expected?) at night.

Is there any chance that a fan could improve this?
I'm considering to improve my sensor radiation shield by adding a fan.



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