Climate averages 1991–2020
Sandachō 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 Sandachō: daytime highs average 26.3°C and nights cool to about 19.7°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 196 mm of rain on roughly 13 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 Takarazuka (15 km away). In September its highs average 27.4°C, 1.1°C warmer than Sandachō, with 191 mm of rain.
Among the 303 cities listed in Japan, Sandachō ranks joint 115th of 303 for the warmest September highs and joint 181st of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Sandachō is 0.7°C warmer than that mean.
From September to October, average highs fall by 5.5°C to 20.8°C, and monthly rainfall falls from 196 mm to 154 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
Sandachō climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.4°C0.2°C | 0.2°C | 55 | 7.0 | 10.110 h |
| February | 8.4°C0.3°C | 0.3°C | 65 | 8.3 | 10.911 h |
| March | 12.1°C3.0°C | 3.0°C | 112 | 11.7 | 11.912 h |
| April | 17.3°C8.0°C | 8.0°C | 125 | 10.9 | 13.013 h |
| May | 22.0°C13.3°C | 13.3°C | 147 | 11.1 | 14.014 h |
| June | 25.3°C18.0°C | 18.0°C | 186 | 14.0 | 14.514 h |
| July | 28.6°C22.5°C | 22.5°C | 221 | 16.6 | 14.314 h |
| August | 30.1°C23.5°C | 23.5°C | 134 | 13.9 | 13.513 h |
| September, selected | 26.3°C19.7°C | 19.7°C | 196 | 12.9 | 12.412 h |
| October | 20.8°C13.6°C | 13.6°C | 154 | 9.2 | 11.311 h |
| November | 15.3°C7.6°C | 7.6°C | 78 | 7.0 | 10.410 h |
| December | 9.8°C2.5°C | 2.5°C | 62 | 7.0 | 9.910 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
- Takarazuka in SeptemberJapan · 15 kmHigh 27.4°C · Low 20.5°C · 191 mm rain
- Nishinomiya in SeptemberJapan · 21 kmHigh 27.4°C · Low 20.9°C · 191 mm rain
- Kobe in SeptemberJapan · 22 kmHigh 27.1°C · Low 21.2°C · 191 mm rain
- Miki in SeptemberJapan · 24 kmHigh 26.5°C · Low 20.7°C · 194 mm rain
- Toyonaka in SeptemberJapan · 25 kmHigh 27.3°C · Low 20.1°C · 163 mm rain
- Akashi in SeptemberJapan · 32 kmHigh 26.4°C · Low 21.2°C · 194 mm rain
- Osaka in SeptemberJapan · 33 kmHigh 27.6°C · Low 20.4°C · 163 mm rain
- Kameoka in SeptemberJapan · 35 kmHigh 26.5°C · Low 19.1°C · 198 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 Sandachō) is explained once on the Sandachō year overview and on the Sources, method and limits page.