Climate averages 1991–2020
Nasushiobara weather
in September.
A warm, very wet month: the 3rd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Nasushiobara: daytime highs average 23.8°C and nights cool to about 17.0°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 227 mm of rain on roughly 16 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average September day.
The nearest other city in this atlas is Ōtawara (13 km away). In September its highs average 24.0°C, about as warm as Nasushiobara, with 193 mm of rain.
Among the 303 cities listed in Japan, Nasushiobara ranks joint 263rd of 303 for the warmest September highs and 250th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Nasushiobara is 1.8°C cooler than that mean.
From September to October, average highs fall by 5.5°C to 18.3°C, and monthly rainfall falls from 227 mm to 185 mm.
The annual picture
September 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
Nasushiobara climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.5°C-3.0°C | -3.0°C | 62 | 9.3 | 9.910 h |
| February | 5.3°C-2.9°C | -2.9°C | 57 | 8.9 | 10.811 h |
| March | 9.3°C-0.2°C | -0.2°C | 111 | 13.3 | 11.912 h |
| April | 15.3°C4.8°C | 4.8°C | 130 | 13.1 | 13.113 h |
| May | 20.3°C10.3°C | 10.3°C | 148 | 13.9 | 14.114 h |
| June | 23.4°C15.1°C | 15.1°C | 176 | 16.8 | 14.715 h |
| July | 26.7°C19.4°C | 19.4°C | 240 | 21.0 | 14.414 h |
| August | 27.8°C20.6°C | 20.6°C | 190 | 18.4 | 13.614 h |
| September, selected | 23.8°C17.0°C | 17.0°C | 227 | 16.4 | 12.512 h |
| October | 18.3°C10.8°C | 10.8°C | 185 | 14.0 | 11.311 h |
| November | 12.8°C4.5°C | 4.5°C | 88 | 9.4 | 10.210 h |
| December | 7.3°C-0.2°C | -0.2°C | 60 | 9.6 | 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
September in nearby cities
- Ōtawara in SeptemberJapan · 13 kmHigh 24.0°C · Low 17.0°C · 193 mm rain
- Sukagawa in SeptemberJapan · 44 kmHigh 23.7°C · Low 16.8°C · 171 mm rain
- Nikkō in SeptemberJapan · 47 kmHigh 22.8°C · Low 16.3°C · 268 mm rain
- Utsunomiya in SeptemberJapan · 48 kmHigh 24.5°C · Low 17.4°C · 165 mm rain
- Kōriyama in SeptemberJapan · 55 kmHigh 23.7°C · Low 16.8°C · 151 mm rain
- Kanuma in SeptemberJapan · 56 kmHigh 24.4°C · Low 17.7°C · 239 mm rain
- Aizu-Wakamatsu in SeptemberJapan · 58 kmHigh 23.5°C · Low 16.9°C · 144 mm rain
- Mooka in SeptemberJapan · 61 kmHigh 25.8°C · Low 18.5°C · 165 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 Nasushiobara) is explained once on the Nasushiobara year overview and on the Sources, method and limits page.