Climate averages 1991–2020
Niiza weather
in March.
A cool, wet month: the 9th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a cool month in Niiza: daytime highs average 12.4°C and nights cool to about 2.7°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 120 mm of rain on roughly 13 days, which makes March a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 56 min on an average March day.
The nearest other city in this atlas is Tokorozawa (8 km away). In March its highs average 11.8°C, 0.6°C cooler than Niiza, with 120 mm of rain.
Among the 303 cities listed in Japan, Niiza ranks joint 147th of 303 for the warmest March highs and joint 151st of 303 for the driest March (rainfall, lowest first). The mean March high of those 303 cities is 11.5°C; Niiza is 0.9°C warmer than that mean.
From March to April, average highs rise by 5.1°C to 17.5°C, and monthly rainfall rises from 120 mm to 123 mm.
The annual picture
March 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
Niiza 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-1.6°C | -1.6°C | 69 | 7.5 | 10.010 h |
| February | 8.9°C-0.9°C | -0.9°C | 66 | 8.5 | 10.911 h |
| March, selected | 12.4°C2.7°C | 2.7°C | 120 | 13.2 | 11.912 h |
| April | 17.5°C7.9°C | 7.9°C | 123 | 12.8 | 13.113 h |
| May | 22.0°C13.4°C | 13.4°C | 139 | 13.1 | 14.014 h |
| June | 24.8°C17.7°C | 17.7°C | 177 | 15.4 | 14.515 h |
| July | 28.5°C21.8°C | 21.8°C | 182 | 16.4 | 14.314 h |
| August | 29.9°C23.2°C | 23.2°C | 142 | 15.4 | 13.514 h |
| September | 26.0°C19.6°C | 19.6°C | 204 | 14.9 | 12.412 h |
| October | 20.5°C13.5°C | 13.5°C | 215 | 13.7 | 11.311 h |
| November | 15.3°C7.2°C | 7.2°C | 92 | 10.2 | 10.310 h |
| December | 10.3°C1.4°C | 1.4°C | 61 | 7.4 | 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
March in nearby cities
- Tokorozawa in MarchJapan · 8 kmHigh 11.8°C · Low 1.8°C · 120 mm rain
- Yono in MarchJapan · 10 kmHigh 12.5°C · Low 2.3°C · 99 mm rain
- Kawagoe in MarchJapan · 12 kmHigh 12.3°C · Low 1.9°C · 97 mm rain
- Musashino in MarchJapan · 13 kmHigh 12.0°C · Low 3.0°C · 120 mm rain
- Saitama in MarchJapan · 13 kmHigh 12.7°C · Low 2.6°C · 99 mm rain
- Sayama in MarchJapan · 14 kmHigh 12.0°C · Low 1.6°C · 120 mm rain
- Kawaguchi in MarchJapan · 14 kmHigh 12.7°C · Low 3.1°C · 113 mm rain
- Iruma in MarchJapan · 17 kmHigh 11.7°C · Low 1.5°C · 139 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 Niiza) is explained once on the Niiza year overview and on the Sources, method and limits page.
Tokorozawa, Fuchū and Hino lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.