Verdict: Fair month
Fukuoka Weather in August
August runs warm in Fukuoka, with daily highs around 31°C (88°F) and nights near 25°C (77°F). It's also the wet side of the calendar: rain falls on about 18 days, so build flexibility into plans. August is workable in Fukuoka if your dates are fixed — just plan around the conditions.
Average high
31°C / 88°F
Average low
25°C / 77°F
Rain days
~18
Precipitation
313 mm
What to pack for Fukuoka in August
- Light, breathable clothing — linen and technical fabrics earn their keep
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 18 days
- Quick-dry shoes — downpours are short but heavy
- Comfortable walking shoes — every guide on this site assumes you'll use them
August against the rest of the year
Warmest in Fukuoka: Aug (31°C / 88°F) · Coolest: Jan (9°C / 48°F) · Wettest: Jul (~20 rain days)
9°
4°
Jan
11°
4°
Feb
15°
7°
Mar
18°
11°
Apr
22°
15°
May
26°
20°
Jun
30°
24°
Jul
31°
25°
Aug
28°
22°
Sep
22°
15°
Oct
18°
11°
Nov
11°
5°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)