Kumamoto weather by month & the best time to visit

🇯🇵 Japan · city break · humid subtropical climate

The best time to visit Kumamoto is October — its sunniest month (Sunshine Score 68/100), with May and June close behind. Kumamoto averages about 1,845 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 117 mm of rain in October.

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Sun hours / year

1,845

Sunniest month

October

Peak score

68/100

Rain / year

2,131 mm

Midday UV at peak

8 (very high)

Population

739k

Elevation

192 m

When is the best time to visit Kumamoto?

For sunshine, the best time to visit Kumamoto is October, then May and June. The dullest month is January (0/100, 69 mm of rain). The full month-by-month picture is in the table below.

How sunny is Kumamoto?

Kumamoto gets a moderate 1,845 hours of sunshine a year. 68 Sunshine Score points separate October (68) from January (0), so the month you pick matters. It ranks #22 of 79 destinations in Japan for annual sunshine, above the national median of 1,773 hours. Rain has a clear season: the wettest stretch, around July, carries about 46% of the annual 2,131 mm.

Sunshine Score by month

See Kumamoto on the interactive sunshine globe →

Nearby places for sunshine

• Saga Japan · 62 km · best in Oct · 1,752 h sun/yr
• Nagasaki Japan · 88 km · best in Oct · 1,779 h sun/yr
• Fukuoka Japan · 91 km · best in Oct · 1,752 h sun/yr
• Oita Japan · 109 km · best in Oct · 1,801 h sun/yr
• Kitakyushu Japan · 113 km · best in Oct · 1,801 h sun/yr
• Kagoshima Japan · 116 km · best in Oct · 1,843 h sun/yr

Nearest destinations

• Amakusa Japan · 76 km · 1,845 h sun/yr · best in Oct

Head-to-head

How Kumamoto compares month by month: Kumamoto vs Fukuoka · Kumamoto vs Kagoshima · Kumamoto vs Nagasaki · Kumamoto vs Miyazaki · all comparisons