Climate averages 1991–2020
Niiza weather
in February.
A cool, moderately wet month: the 11th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
February is a cool month in Niiza: daytime highs average 8.9°C and nights cool to about -0.9°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 66 mm of rain on roughly 9 days, which makes February a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 52 min on an average February day.
The nearest other city in this atlas is Tokorozawa (8 km away). In February its highs average 8.3°C, 0.6°C cooler than Niiza, with 66 mm of rain.
Among the 303 cities listed in Japan, Niiza ranks joint 145th of 303 for the warmest February highs and joint 96th of 303 for the driest February (rainfall, lowest first). The mean February high of those 303 cities is 7.9°C; Niiza is 1.0°C warmer than that mean.
From February to March, average highs rise by 3.5°C to 12.4°C, and monthly rainfall rises from 66 mm to 120 mm.
The annual picture
February 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, selected | 8.9°C-0.9°C | -0.9°C | 66 | 8.5 | 10.911 h |
| March | 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
February in nearby cities
- Tokorozawa in FebruaryJapan · 8 kmHigh 8.3°C · Low -1.7°C · 66 mm rain
- Yono in FebruaryJapan · 10 kmHigh 8.9°C · Low -1.2°C · 55 mm rain
- Kawagoe in FebruaryJapan · 12 kmHigh 8.7°C · Low -1.6°C · 54 mm rain
- Musashino in FebruaryJapan · 13 kmHigh 8.6°C · Low -0.4°C · 66 mm rain
- Saitama in FebruaryJapan · 13 kmHigh 9.1°C · Low -0.9°C · 55 mm rain
- Sayama in FebruaryJapan · 14 kmHigh 8.5°C · Low -1.8°C · 66 mm rain
- Kawaguchi in FebruaryJapan · 14 kmHigh 9.2°C · Low -0.5°C · 63 mm rain
- Iruma in FebruaryJapan · 17 kmHigh 8.1°C · Low -2.0°C · 76 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.