Climate at a glance · Okayama
Annual mean62°day and night
Precipitation54.53 ina year
Warmest monthAugustavg high 91°
Coldest monthJanuaryavg low 30°
Average temperature by month
High · lowJanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation by month
54.53 in a yearJanFebMarAprMayJunJulAugSepOctNovDec
Monthly averages
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 50° | 50° | 59° | 70° | 75° | 82° | 90° | 91° | 86° | 75° | 64° | 54° |
| Avg low | 30° | 32° | 39° | 48° | 55° | 66° | 75° | 77° | 72° | 57° | 45° | 34° |
| Precip, in | 1.10 | 1.93 | 4.21 | 5.31 | 6.02 | 7.48 | 7.36 | 8.74 | 5.63 | 3.07 | 2.83 | 0.83 |
| Wet days | 4 | 7 | 10 | 10 | 11 | 13 | 13 | 13 | 12 | 9 | 5 | 5 |
| Sunshine | 7.4 h | 7.8 h | 8.1 h | 8.6 h | 9 h | 8.7 h | 10.3 h | 10.1 h | 8.9 h | 8.2 h | 8.2 h | 7.9 h |
| Humidity | 70% | 69% | 69% | 67% | 70% | 76% | 76% | 74% | 76% | 72% | 74% | 72% |
| Sea temperature | 50° | 47° | 49° | 56° | 64° | 71° | 81° | 86° | 85° | 77° | 65° | 58° |
| Daylight | 10 h 08 | 10 h 56 | 11 h 59 | 13 h 04 | 13 h 59 | 14 h 26 | 14 h 13 | 13 h 26 | 12 h 24 | 11 h 19 | 10 h 22 | 9 h 52 |
| UV index (clear sky) | 4 | 6 | 8 | 10 | 11 | 12 | 11 | 11 | 9 | 6 | 4 | 4 |
5-year averages (2021–2025) · Open-Meteo historical weather (ERA5)
34.6500°N, 133.9330°E