Climate averages 1991–2020
Kamisu weather
in April.
A mild, 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 mild month in Kamisu: daytime highs average 16.4°C and nights cool to about 10.2°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 126 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 05 min on an average April day.
The nearest other city in this atlas is Katori-shi (15 km away). In April its highs average 17.1°C, 0.7°C warmer than Kamisu, with 118 mm of rain.
Among the 303 cities listed in Japan, Kamisu ranks 216th of 303 for the warmest April highs and joint 174th of 303 for the driest April (rainfall, lowest first). The mean April high of those 303 cities is 16.7°C; Kamisu is 0.3°C cooler than that mean.
From April to May, average highs rise by 4.0°C to 20.4°C, and monthly rainfall rises from 126 mm to 145 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
Kamisu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.8°C3.2°C | 3.2°C | 89 | 9.3 | 10.010 h |
| February | 9.2°C3.2°C | 3.2°C | 85 | 9.3 | 10.911 h |
| March | 12.1°C5.9°C | 5.9°C | 142 | 13.0 | 11.912 h |
| April, selected | 16.4°C10.2°C | 10.2°C | 126 | 12.5 | 13.113 h |
| May | 20.4°C14.8°C | 14.8°C | 145 | 12.2 | 14.014 h |
| June | 23.1°C18.4°C | 18.4°C | 164 | 13.1 | 14.515 h |
| July | 26.7°C22.1°C | 22.1°C | 140 | 12.0 | 14.314 h |
| August | 28.3°C23.7°C | 23.7°C | 90 | 9.2 | 13.514 h |
| September | 25.3°C21.3°C | 21.3°C | 174 | 13.6 | 12.412 h |
| October | 20.6°C16.5°C | 16.5°C | 232 | 13.9 | 11.311 h |
| November | 16.1°C11.2°C | 11.2°C | 121 | 11.5 | 10.310 h |
| December | 11.3°C6.0°C | 6.0°C | 86 | 10.2 | 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
April in nearby cities
- Katori-shi in AprilJapan · 15 kmHigh 17.1°C · Low 9.6°C · 118 mm rain
- Narita in AprilJapan · 34 kmHigh 17.7°C · Low 8.9°C · 113 mm rain
- Ryūgasaki in AprilJapan · 44 kmHigh 17.8°C · Low 8.6°C · 108 mm rain
- Sakura in AprilJapan · 44 kmHigh 17.4°C · Low 9.5°C · 113 mm rain
- Inzai in AprilJapan · 46 kmHigh 17.5°C · Low 8.9°C · 113 mm rain
- Tsuchiura in AprilJapan · 46 kmHigh 17.7°C · Low 8.4°C · 108 mm rain
- Ishioka in AprilJapan · 48 kmHigh 17.4°C · Low 8.4°C · 114 mm rain
- Ushiku in AprilJapan · 49 kmHigh 17.6°C · Low 8.3°C · 108 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 Kamisu) is explained once on the Kamisu year overview and on the Sources, method and limits page.