Climate averages 1991–2020
Oyama weather
in June.
A warm, wet month: the 4th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Oyama: daytime highs average 24.7°C and nights cool to about 16.9°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 177 mm of rain on roughly 17 days, which makes June a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 35 min on an average June day.
The nearest other city in this atlas is Tochigi (11 km away). In June its highs average 24.7°C, about as warm as Oyama, with 204 mm of rain.
Among the 303 cities listed in Japan, Oyama ranks joint 156th of 303 for the warmest June highs and joint 109th of 303 for the driest June (rainfall, lowest first). The mean June high of those 303 cities is 24.4°C; Oyama is 0.4°C warmer than that mean.
From June to July, average highs rise by 3.5°C to 28.2°C, and monthly rainfall rises from 177 mm to 209 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
Oyama climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.3°C-2.1°C | -2.1°C | 55 | 6.0 | 10.010 h |
| February | 8.4°C-1.5°C | -1.5°C | 55 | 6.9 | 10.811 h |
| March | 12.2°C1.6°C | 1.6°C | 106 | 11.6 | 11.912 h |
| April | 17.4°C6.8°C | 6.8°C | 120 | 12.6 | 13.113 h |
| May | 22.1°C12.4°C | 12.4°C | 153 | 13.7 | 14.114 h |
| June, selected | 24.7°C16.9°C | 16.9°C | 177 | 16.5 | 14.615 h |
| July | 28.2°C21.0°C | 21.0°C | 209 | 18.7 | 14.414 h |
| August | 29.5°C22.3°C | 22.3°C | 161 | 16.3 | 13.514 h |
| September | 25.7°C18.9°C | 18.9°C | 206 | 16.2 | 12.412 h |
| October | 20.2°C12.7°C | 12.7°C | 200 | 13.9 | 11.311 h |
| November | 14.9°C5.9°C | 5.9°C | 88 | 9.4 | 10.310 h |
| December | 9.7°C0.4°C | 0.4°C | 54 | 6.8 | 9.710 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
- Tochigi in JuneJapan · 11 kmHigh 24.7°C · Low 16.8°C · 204 mm rain
- Koga in JuneJapan · 15 kmHigh 25.0°C · Low 17.2°C · 177 mm rain
- Chikusei in JuneJapan · 16 kmHigh 25.1°C · Low 17.2°C · 147 mm rain
- Sano in JuneJapan · 20 kmHigh 24.8°C · Low 17.0°C · 187 mm rain
- Mooka in JuneJapan · 24 kmHigh 24.9°C · Low 16.6°C · 144 mm rain
- Tatebayashi in JuneJapan · 25 kmHigh 24.9°C · Low 17.0°C · 187 mm rain
- Kazo in JuneJapan · 27 kmHigh 25.2°C · Low 17.4°C · 162 mm rain
- Kukichūō in JuneJapan · 28 kmHigh 25.2°C · Low 17.4°C · 152 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 Oyama) is explained once on the Oyama year overview and on the Sources, method and limits page.
Koga lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.