Climate averages 1991–2020
Numazu weather
in September.
A warm, very wet month: the 3rd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Numazu: daytime highs average 26.1°C and nights cool to about 20.9°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 243 mm of rain on roughly 15 days, which makes September a very wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.
The nearest other city in this atlas is Fuji, Japan (18 km away). In September its highs average 26.5°C, about as warm as Numazu, with 279 mm of rain.
Among the 303 cities listed in Japan, Numazu ranks joint 149th of 303 for the warmest September highs and 271st of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Numazu is 0.5°C warmer than that mean.
From September to October, average highs fall by 4.8°C to 21.3°C, and monthly rainfall rises from 243 mm to 245 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
Numazu climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.5°C3.1°C | 3.1°C | 95 | 8.5 | 10.110 h |
| February | 10.1°C3.0°C | 3.0°C | 119 | 9.2 | 10.911 h |
| March | 13.1°C5.5°C | 5.5°C | 204 | 14.0 | 11.912 h |
| April | 17.4°C9.9°C | 9.9°C | 215 | 13.1 | 13.013 h |
| May | 21.5°C14.3°C | 14.3°C | 232 | 12.8 | 14.014 h |
| June | 24.2°C18.5°C | 18.5°C | 286 | 15.8 | 14.514 h |
| July | 27.9°C22.5°C | 22.5°C | 294 | 16.5 | 14.314 h |
| August | 29.1°C23.7°C | 23.7°C | 165 | 14.2 | 13.513 h |
| September, selected | 26.1°C20.9°C | 20.9°C | 243 | 14.5 | 12.412 h |
| October | 21.3°C15.9°C | 15.9°C | 245 | 13.1 | 11.311 h |
| November | 16.7°C10.7°C | 10.7°C | 144 | 10.8 | 10.410 h |
| December | 11.9°C5.9°C | 5.9°C | 89 | 8.4 | 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
September in nearby cities
- Fuji, Japan in SeptemberJapan · 18 kmHigh 26.5°C · Low 20.7°C · 279 mm rain
- Gotemba in SeptemberJapan · 25 kmHigh 24.6°C · Low 18.5°C · 263 mm rain
- Fujinomiya in SeptemberJapan · 26 kmHigh 25.6°C · Low 19.6°C · 337 mm rain
- Odawara in SeptemberJapan · 32 kmHigh 26.1°C · Low 20.8°C · 241 mm rain
- Hadano in SeptemberJapan · 44 kmHigh 25.4°C · Low 20.3°C · 241 mm rain
- Shizuoka in SeptemberJapan · 46 kmHigh 25.8°C · Low 20.9°C · 277 mm rain
- Hiratsuka in SeptemberJapan · 50 kmHigh 24.8°C · Low 20.6°C · 241 mm rain
- Isehara in SeptemberJapan · 52 kmHigh 25.1°C · Low 20.5°C · 229 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 Numazu) is explained once on the Numazu year overview and on the Sources, method and limits page.