晴れる
はれる · hareru · JLPT N5 · verb-ichidan
to be sunny
☀️ 晴 = sun 日 + blue 青: the sky clears, hareru
The kanji 晴 joins 日 (sun) with 青 (blue), so a blue sky with the sun out means clear weather. Sound hook: ha-re-ru starts like hurrah, the cheer you give when the rain stops. The same verb also means a mood or a doubt clearing up.
晴 — sun 日 + blue/clear 青
晴 is a semantic-phonetic compound. The left element 日 (sun) gives the meaning — clear, sunny weather — while 青 (qīng) on the right supplies the sound. It originally referred to a sky cleared of rain, and still means 'clear/fine weather' today.