Climate averages 1991–2020
Tsukuba weather
in April.
A mild, wet month: the 7th warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Tsukuba: daytime highs average 17.7°C and nights cool to about 8.0°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 106 mm of rain on roughly 11 days, which makes April a wet month (the joint 5th 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 Tsuchiura (8 km away). In April its highs average 17.7°C, about as warm as Tsukuba, with 108 mm of rain.
Among the 303 cities listed in Japan, Tsukuba ranks joint 105th of 303 for the warmest April highs and joint 44th of 303 for the driest April (rainfall, lowest first). The mean April high of those 303 cities is 16.7°C; Tsukuba is 1.0°C warmer than that mean.
From April to May, average highs rise by 4.6°C to 22.3°C, and monthly rainfall rises from 106 mm to 131 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
Tsukuba climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.9°C-1.1°C | -1.1°C | 60 | 6.5 | 10.010 h |
| February | 9.0°C-0.4°C | -0.4°C | 59 | 7.3 | 10.811 h |
| March | 12.6°C2.9°C | 2.9°C | 106 | 11.6 | 11.912 h |
| April, selected | 17.7°C8.0°C | 8.0°C | 106 | 11.3 | 13.113 h |
| May | 22.3°C13.3°C | 13.3°C | 131 | 12.4 | 14.114 h |
| June | 24.9°C17.5°C | 17.5°C | 154 | 14.8 | 14.615 h |
| July | 28.6°C21.6°C | 21.6°C | 163 | 15.4 | 14.414 h |
| August | 30.0°C23.0°C | 23.0°C | 123 | 13.5 | 13.514 h |
| September | 26.1°C19.7°C | 19.7°C | 167 | 13.9 | 12.412 h |
| October | 20.7°C13.8°C | 13.8°C | 186 | 12.5 | 11.311 h |
| November | 15.5°C7.4°C | 7.4°C | 85 | 9.1 | 10.310 h |
| December | 10.3°C1.6°C | 1.6°C | 56 | 6.8 | 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
- Tsuchiura in AprilJapan · 8 kmHigh 17.7°C · Low 8.4°C · 108 mm rain
- Ushiku in AprilJapan · 13 kmHigh 17.6°C · Low 8.3°C · 108 mm rain
- Ishioka in AprilJapan · 17 kmHigh 17.4°C · Low 8.4°C · 114 mm rain
- Toride in AprilJapan · 21 kmHigh 17.8°C · Low 8.6°C · 106 mm rain
- Ryūgasaki in AprilJapan · 21 kmHigh 17.8°C · Low 8.6°C · 108 mm rain
- Kashiwa in AprilJapan · 28 kmHigh 17.6°C · Low 8.4°C · 114 mm rain
- Inzai in AprilJapan · 28 kmHigh 17.5°C · Low 8.9°C · 113 mm rain
- Chikusei in AprilJapan · 29 kmHigh 17.7°C · Low 7.2°C · 107 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 Tsukuba) is explained once on the Tsukuba year overview and on the Sources, method and limits page.
Toride lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.