Climate averages 1991–2020
Ichihara weather
in June.
A warm, very wet month: the 4th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Ichihara: daytime highs average 24.4°C and nights cool to about 18.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 189 mm of rain on roughly 14 days, which makes June a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 31 min on an average June day.
The nearest other city in this atlas is Chiba (10 km away). In June its highs average 24.5°C, about as warm as Ichihara, with 189 mm of rain.
Among the 303 cities listed in Japan, Ichihara ranks joint 181st of 303 for the warmest June highs and joint 154th of 303 for the driest June (rainfall, lowest first). The mean June high of those 303 cities is 24.4°C; Ichihara is level with that mean.
From June to July, average highs rise by 3.7°C to 28.1°C, and monthly rainfall falls from 189 mm to 155 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
Ichihara climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.8°C3.0°C | 3.0°C | 86 | 7.8 | 10.010 h |
| February | 9.5°C3.1°C | 3.1°C | 83 | 8.8 | 10.911 h |
| March | 12.6°C5.9°C | 5.9°C | 149 | 13.0 | 11.912 h |
| April | 17.2°C10.5°C | 10.5°C | 138 | 12.9 | 13.113 h |
| May | 21.5°C15.2°C | 15.2°C | 149 | 12.1 | 14.014 h |
| June, selected | 24.4°C18.8°C | 18.8°C | 189 | 14.3 | 14.515 h |
| July | 28.1°C22.6°C | 22.6°C | 155 | 12.9 | 14.314 h |
| August | 29.5°C24.1°C | 24.1°C | 118 | 11.5 | 13.513 h |
| September | 26.1°C21.3°C | 21.3°C | 207 | 14.7 | 12.412 h |
| October | 21.0°C16.2°C | 16.2°C | 251 | 14.4 | 11.311 h |
| November | 16.1°C10.9°C | 10.9°C | 126 | 11.8 | 10.310 h |
| December | 11.3°C5.8°C | 5.8°C | 80 | 8.7 | 9.810 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
- Chiba in JuneJapan · 10 kmHigh 24.5°C · Low 18.5°C · 189 mm rain
- Narashino in JuneJapan · 19 kmHigh 24.5°C · Low 18.2°C · 161 mm rain
- Kisarazu in JuneJapan · 20 kmHigh 24.0°C · Low 18.8°C · 189 mm rain
- Mobara in JuneJapan · 22 kmHigh 24.2°C · Low 18.9°C · 166 mm rain
- Urayasu in JuneJapan · 23 kmHigh 24.6°C · Low 18.3°C · 161 mm rain
- Yachiyo in JuneJapan · 25 kmHigh 24.5°C · Low 18.1°C · 161 mm rain
- Sakura in JuneJapan · 26 kmHigh 24.6°C · Low 18.3°C · 159 mm rain
- Kamagaya in JuneJapan · 29 kmHigh 24.7°C · Low 17.9°C · 161 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 Ichihara) is explained once on the Ichihara year overview and on the Sources, method and limits page.
Chiba and Kisarazu lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.