Climate averages 1991–2020
Odawara 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 Odawara: daytime highs average 26.1°C and nights cool to about 20.8°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 241 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 26 min on an average September day.
The nearest other city in this atlas is Hadano (14 km away). In September its highs average 25.4°C, 0.8°C cooler than Odawara, with 241 mm of rain.
Among the 303 cities listed in Japan, Odawara ranks joint 149th of 303 for the warmest September highs and joint 268th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Odawara is 0.5°C warmer than that mean.
From September to October, average highs fall by 5.0°C to 21.1°C, and monthly rainfall rises from 241 mm to 267 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
Odawara climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 9.0°C2.0°C | 2.0°C | 97 | 10.0 | 10.110 h |
| February | 9.6°C1.9°C | 1.9°C | 108 | 11.4 | 10.911 h |
| March | 12.9°C4.9°C | 4.9°C | 186 | 16.3 | 11.912 h |
| April | 17.6°C9.6°C | 9.6°C | 176 | 14.4 | 13.113 h |
| May | 21.8°C14.5°C | 14.5°C | 181 | 13.5 | 14.014 h |
| June | 24.5°C18.7°C | 18.7°C | 231 | 15.9 | 14.514 h |
| July | 28.3°C22.7°C | 22.7°C | 200 | 14.7 | 14.314 h |
| August | 29.4°C23.9°C | 23.9°C | 154 | 13.5 | 13.513 h |
| September, selected | 26.1°C20.8°C | 20.8°C | 241 | 15.5 | 12.412 h |
| October | 21.1°C15.6°C | 15.6°C | 267 | 15.5 | 11.311 h |
| November | 16.4°C10.0°C | 10.0°C | 141 | 13.1 | 10.310 h |
| December | 11.6°C4.9°C | 4.9°C | 94 | 10.9 | 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
- Hadano in SeptemberJapan · 14 kmHigh 25.4°C · Low 20.3°C · 241 mm rain
- Hiratsuka in SeptemberJapan · 18 kmHigh 24.8°C · Low 20.6°C · 241 mm rain
- Gotemba in SeptemberJapan · 21 kmHigh 24.6°C · Low 18.5°C · 263 mm rain
- Isehara in SeptemberJapan · 21 kmHigh 25.1°C · Low 20.5°C · 229 mm rain
- Chigasaki in SeptemberJapan · 24 kmHigh 24.9°C · Low 20.9°C · 208 mm rain
- Atsugi in SeptemberJapan · 28 kmHigh 24.8°C · Low 20.4°C · 229 mm rain
- Fujisawa in SeptemberJapan · 31 kmHigh 24.9°C · Low 21.1°C · 208 mm rain
- Numazu in SeptemberJapan · 32 kmHigh 26.1°C · Low 20.9°C · 243 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 Odawara) is explained once on the Odawara year overview and on the Sources, method and limits page.
Hiratsuka and Hadano lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.