The following weather is not suitable for flying kites.

Thunderstorm weather is not suitable for flying kites. First of all, in a thunderstorm, then you are not safe, because it is raining and it is not safe for kites. Maybe the kite will be blown away, maybe it will be hit by lightning, maybe it will be wet by rain.

Rainy days are not suitable either. It may get wet by the rain, which may lead to a cold.

The sun weather is not suitable, and it may cause heatstroke and directly damage the kite.