Climate averages 1991–2020
Nikkō 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 Nikkō: daytime highs average 14.3°C and nights cool to about 3.7°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 137 mm of rain on roughly 15 days, which makes April a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 07 min on an average April day.
The nearest other city in this atlas is Kanuma (25 km away). In April its highs average 16.2°C, 1.8°C warmer than Nikkō, with 136 mm of rain.
Among the 303 cities listed in Japan, Nikkō ranks joint 266th of 303 for the warmest April highs and joint 209th of 303 for the driest April (rainfall, lowest first). The mean April high of those 303 cities is 16.7°C; Nikkō is 2.4°C cooler than that mean.
From April to May, average highs rise by 4.8°C to 19.1°C, and monthly rainfall rises from 137 mm to 176 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
Nikkō climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.3°C-5.1°C | -5.1°C | 62 | 9.6 | 10.010 h |
| February | 4.0°C-5.0°C | -5.0°C | 59 | 9.7 | 10.811 h |
| March | 8.1°C-1.8°C | -1.8°C | 112 | 14.0 | 11.912 h |
| April, selected | 14.3°C3.7°C | 3.7°C | 137 | 15.1 | 13.113 h |
| May | 19.1°C9.4°C | 9.4°C | 176 | 17.1 | 14.114 h |
| June | 21.9°C14.4°C | 14.4°C | 228 | 22.1 | 14.615 h |
| July | 25.5°C18.7°C | 18.7°C | 305 | 25.4 | 14.414 h |
| August | 26.4°C19.8°C | 19.8°C | 259 | 24.9 | 13.614 h |
| September | 22.8°C16.3°C | 16.3°C | 268 | 20.1 | 12.512 h |
| October | 17.4°C10.0°C | 10.0°C | 198 | 16.6 | 11.311 h |
| November | 12.0°C3.4°C | 3.4°C | 84 | 9.4 | 10.210 h |
| December | 6.4°C-1.8°C | -1.8°C | 59 | 10.1 | 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
April in nearby cities
- Kanuma in AprilJapan · 25 kmHigh 16.2°C · Low 5.4°C · 136 mm rain
- Utsunomiya in AprilJapan · 31 kmHigh 16.3°C · Low 5.3°C · 109 mm rain
- Ōtawara in AprilJapan · 39 kmHigh 15.7°C · Low 4.9°C · 121 mm rain
- Tochigi in AprilJapan · 42 kmHigh 17.4°C · Low 6.5°C · 136 mm rain
- Kiryū in AprilJapan · 46 kmHigh 17.2°C · Low 6.4°C · 114 mm rain
- Nasushiobara in AprilJapan · 47 kmHigh 15.3°C · Low 4.8°C · 130 mm rain
- Sano in AprilJapan · 48 kmHigh 17.5°C · Low 6.8°C · 121 mm rain
- Mooka in AprilJapan · 50 kmHigh 17.5°C · Low 6.5°C · 109 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 Nikkō) is explained once on the Nikkō year overview and on the Sources, method and limits page.