曇 means cloudy and is a JLPT N2 kanji. It has 16 strokes and uses the sun / day radical (日).
Stroke order · 16 strokes
On'yomi (音読み)
ドン
Kun'yomi (訓読み)
くも(る)
Radical
日 · sun / day
Strokes
16
How to remember 曇
Clouds (雲) covering the sun (日) — everything gets overcast. 曇り (cloudy) — the three faces of weather: sunny・cloudy・rainy; the middle one is the most annoying.