noun
man who brings good weather; man who is always lucky with the weather
Colloquial term for a man whose presence seems to bring sunny weather, often used in contrast with 雨男 (ameotoko).
See also: 雨男
彼は晴れ男だから、旅行のときはいつも天気がいい。
He's a man who brings good weather, so it's always sunny when we travel.
晴れ男の友達とピクニックに行くと、
When I go on a picnic with my fair-weather friend, it never rains.
Compound of 晴れ (hare, 'clear weather') and 男 (otoko, 'man'). The exact origin is uncertain, but it likely arose as a playful counterpart to 雨男 (ameotoko).