Climate at a glance · Kumamoto
Annual mean63°day and night
Precipitation85.91 ina year
Warmest monthAugustavg high 90°
Coldest monthJanuaryavg low 34°
Average temperature by month
High · lowJanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation by month
85.91 in a yearJanFebMarAprMayJunJulAugSepOctNovDec
Monthly averages
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 50° | 54° | 63° | 70° | 75° | 81° | 88° | 90° | 86° | 77° | 66° | 54° |
| Avg low | 34° | 37° | 45° | 52° | 59° | 68° | 75° | 77° | 73° | 61° | 48° | 37° |
| Precip, in | 2.20 | 3.82 | 7.44 | 6.22 | 12.24 | 16.10 | 9.76 | 13.35 | 6.06 | 3.43 | 3.58 | 1.69 |
| Wet days | 7 | 8 | 12 | 12 | 14 | 16 | 18 | 18 | 13 | 10 | 8 | 7 |
| Sunshine | 7.3 h | 7.6 h | 7.7 h | 8.1 h | 8.2 h | 7.4 h | 9.7 h | 10 h | 9.6 h | 8.6 h | 7.8 h | 7.7 h |
| Humidity | 73% | 72% | 75% | 74% | 78% | 83% | 80% | 79% | 79% | 74% | 75% | 73% |
| Sea temperature | 52° | 48° | 52° | 59° | 66° | 74° | 83° | 85° | 84° | 78° | 68° | 61° |
| Daylight | 10 h 16 | 11 h 01 | 11 h 59 | 13 h 00 | 13 h 51 | 14 h 16 | 14 h 04 | 13 h 20 | 12 h 22 | 11 h 22 | 10 h 29 | 10 h 02 |
| UV index (clear sky) | 4 | 6 | 8 | 10 | 11 | 12 | 12 | 11 | 9 | 7 | 5 | 4 |
5-year averages (2021–2025) · Open-Meteo historical weather (ERA5)
32.8060°N, 130.6920°E