Climate averages 1991–2020
Itoshima weather
in June.
A warm, very wet month: the 4th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Itoshima: daytime highs average 25.4°C and nights cool to about 19.9°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 278 mm of rain on roughly 15 days, which makes June a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 20 min on an average June day.
The nearest other city in this atlas is Maebaru-chūō (2 km away). In June its highs average 24.7°C, 0.7°C cooler than Itoshima, with 278 mm of rain.
Among the 303 cities listed in Japan, Itoshima ranks joint 86th of 303 for the warmest June highs and joint 269th of 303 for the driest June (rainfall, lowest first). The mean June high of those 303 cities is 24.4°C; Itoshima is 1.0°C warmer than that mean.
From June to July, average highs rise by 3.5°C to 28.9°C, and monthly rainfall falls from 278 mm to 262 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
Itoshima climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.3°C4.1°C | 4.1°C | 64 | 10.2 | 10.210 h |
| February | 9.6°C4.2°C | 4.2°C | 72 | 9.8 | 11.011 h |
| March | 13.0°C6.7°C | 6.7°C | 112 | 11.0 | 12.012 h |
| April | 17.9°C10.7°C | 10.7°C | 126 | 10.4 | 13.013 h |
| May | 22.3°C15.5°C | 15.5°C | 141 | 10.0 | 13.914 h |
| June, selected | 25.4°C19.9°C | 19.9°C | 278 | 14.9 | 14.314 h |
| July | 28.9°C24.1°C | 24.1°C | 262 | 16.6 | 14.114 h |
| August | 30.0°C25.1°C | 25.1°C | 163 | 15.0 | 13.413 h |
| September | 26.6°C21.7°C | 21.7°C | 180 | 12.9 | 12.412 h |
| October | 21.7°C16.6°C | 16.6°C | 101 | 7.7 | 11.411 h |
| November | 16.3°C11.2°C | 11.2°C | 88 | 8.9 | 10.510 h |
| December | 10.8°C6.3°C | 6.3°C | 72 | 9.9 | 10.010 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
- Maebaru-chūō in JuneJapan · 2 kmHigh 24.7°C · Low 19.7°C · 278 mm rain
- Fukuoka in JuneJapan · 22 kmHigh 25.9°C · Low 19.4°C · 305 mm rain
- Karatsu in JuneJapan · 23 kmHigh 25.6°C · Low 19.8°C · 277 mm rain
- Kasuga in JuneJapan · 26 kmHigh 26.5°C · Low 19.0°C · 305 mm rain
- Saga in JuneJapan · 36 kmHigh 25.8°C · Low 18.9°C · 344 mm rain
- Tosu in JuneJapan · 37 kmHigh 26.4°C · Low 18.7°C · 372 mm rain
- Kurume in JuneJapan · 40 kmHigh 26.3°C · Low 18.6°C · 372 mm rain
- Munakata in JuneJapan · 45 kmHigh 26.1°C · Low 19.3°C · 253 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 Itoshima) is explained once on the Itoshima year overview and on the Sources, method and limits page.
Maebaru-chūō lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.