Climate averages 1991–2020
Okayama weather
in June.
A warm, wet month: the 4th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Okayama: daytime highs average 25.9°C and nights cool to about 18.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 172 mm of rain on roughly 12 days, which makes June a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 26 min on an average June day.
The nearest other city in this atlas is Kurashiki (17 km away). In June its highs average 25.6°C, about as warm as Okayama, with 178 mm of rain.
Among the 303 cities listed in Japan, Okayama ranks joint 37th of 303 for the warmest June highs and 99th of 303 for the driest June (rainfall, lowest first). The mean June high of those 303 cities is 24.4°C; Okayama is 1.6°C warmer than that mean.
From June to July, average highs rise by 3.6°C to 29.6°C, and monthly rainfall rises from 172 mm to 187 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Okayama climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.8°C1.1°C | 1.1°C | 40 | 5.5 | 10.110 h |
| February | 9.8°C1.3°C | 1.3°C | 49 | 6.5 | 10.911 h |
| March | 13.3°C4.0°C | 4.0°C | 92 | 9.3 | 11.912 h |
| April | 18.4°C9.0°C | 9.0°C | 108 | 9.7 | 13.013 h |
| May | 22.9°C14.1°C | 14.1°C | 124 | 9.9 | 14.014 h |
| June, selected | 25.9°C18.6°C | 18.6°C | 172 | 12.2 | 14.414 h |
| July | 29.6°C23.0°C | 23.0°C | 187 | 13.5 | 14.214 h |
| August | 31.0°C24.2°C | 24.2°C | 108 | 10.3 | 13.513 h |
| September | 27.2°C20.2°C | 20.2°C | 167 | 10.8 | 12.412 h |
| October | 21.8°C13.8°C | 13.8°C | 114 | 7.7 | 11.311 h |
| November | 16.3°C8.0°C | 8.0°C | 57 | 6.1 | 10.410 h |
| December | 11.0°C3.1°C | 3.1°C | 46 | 5.3 | 9.910 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Kurashiki in JuneJapan · 17 kmHigh 25.6°C · Low 18.9°C · 178 mm rain
- Takamatsu in JuneJapan · 37 kmHigh 24.3°C · Low 19.2°C · 202 mm rain
- Marugame in JuneJapan · 43 kmHigh 24.3°C · Low 19.1°C · 191 mm rain
- Tsuyama in JuneJapan · 45 kmHigh 26.2°C · Low 17.7°C · 188 mm rain
- Fukuyama in JuneJapan · 55 kmHigh 25.9°C · Low 18.7°C · 182 mm rain
- Tatsuno in JuneJapan · 59 kmHigh 23.8°C · Low 18.4°C · 185 mm rain
- Onomichi in JuneJapan · 72 kmHigh 25.3°C · Low 18.4°C · 182 mm rain
- Himeji in JuneJapan · 72 kmHigh 24.0°C · Low 18.3°C · 180 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Okayama) is explained once on the Okayama year overview and on the Sources, method and limits page.