Climate averages 1991–2020
Ōshū weather
in April.
A cool, wet month: the 7th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Ōshū: daytime highs average 14.1°C and nights cool to about 3.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 98 mm of rain on roughly 13 days, which makes April a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 12 min on an average April day.
The nearest other city in this atlas is Kitakami (17 km away). In April its highs average 13.3°C, 0.8°C cooler than Ōshū, with 104 mm of rain.
Among the 303 cities listed in Japan, Ōshū ranks joint 268th of 303 for the warmest April highs and joint 29th of 303 for the driest April (rainfall, lowest first). The mean April high of those 303 cities is 16.7°C; Ōshū is 2.6°C cooler than that mean.
From April to May, average highs rise by 5.1°C to 19.3°C, and monthly rainfall rises from 98 mm to 110 mm.
The annual picture
April 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
Ōshū climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.0°C-5.5°C | -5.5°C | 59 | 10.8 | 9.810 h |
| February | 3.0°C-5.4°C | -5.4°C | 53 | 10.2 | 10.711 h |
| March | 7.5°C-1.8°C | -1.8°C | 92 | 13.2 | 11.912 h |
| April, selected | 14.1°C3.6°C | 3.6°C | 98 | 13.4 | 13.213 h |
| May | 19.3°C9.3°C | 9.3°C | 110 | 12.4 | 14.314 h |
| June | 22.5°C14.1°C | 14.1°C | 123 | 12.9 | 14.915 h |
| July | 25.7°C18.6°C | 18.6°C | 166 | 16.4 | 14.615 h |
| August | 27.0°C19.9°C | 19.9°C | 153 | 15.2 | 13.714 h |
| September | 23.2°C16.1°C | 16.1°C | 151 | 13.5 | 12.512 h |
| October | 17.5°C9.3°C | 9.3°C | 120 | 11.2 | 11.211 h |
| November | 11.3°C3.0°C | 3.0°C | 73 | 11.7 | 10.110 h |
| December | 4.9°C-1.9°C | -1.9°C | 68 | 12.4 | 9.59 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
April in nearby cities
- Kitakami in AprilJapan · 17 kmHigh 13.3°C · Low 2.8°C · 104 mm rain
- Ichinoseki in AprilJapan · 25 kmHigh 14.3°C · Low 3.5°C · 92 mm rain
- Hanamaki in AprilJapan · 28 kmHigh 13.1°C · Low 2.7°C · 105 mm rain
- Tome in AprilJapan · 48 kmHigh 14.4°C · Low 4.3°C · 88 mm rain
- Yokote in AprilJapan · 57 kmHigh 13.0°C · Low 2.7°C · 115 mm rain
- Morioka in AprilJapan · 62 kmHigh 11.6°C · Low 1.9°C · 92 mm rain
- Ōsaki in AprilJapan · 64 kmHigh 14.6°C · Low 3.9°C · 97 mm rain
- Daisen in AprilJapan · 67 kmHigh 13.2°C · Low 2.9°C · 112 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 Ōshū) is explained once on the Ōshū year overview and on the Sources, method and limits page.