Climate averages 1991–2020
Minato weather
in September.
A warm, very wet month: the 3rd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Minato: daytime highs average 26.5°C and nights cool to about 21.0°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 181 mm of rain on roughly 13 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 25 min on an average September day.
The nearest other city in this atlas is Izumisano (27 km away). In September its highs average 27.8°C, 1.3°C warmer than Minato, with 176 mm of rain.
Among the 303 cities listed in Japan, Minato ranks joint 101st of 303 for the warmest September highs and joint 130th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Minato is 0.8°C warmer than that mean.
From September to October, average highs fall by 5.1°C to 21.4°C, and monthly rainfall falls from 181 mm to 179 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
Minato climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.7°C3.1°C | 3.1°C | 83 | 11.5 | 10.110 h |
| February | 9.5°C3.1°C | 3.1°C | 87 | 10.9 | 10.911 h |
| March | 12.8°C5.5°C | 5.5°C | 125 | 12.5 | 11.912 h |
| April | 17.3°C10.0°C | 10.0°C | 126 | 11.0 | 13.013 h |
| May | 21.4°C14.5°C | 14.5°C | 149 | 10.7 | 13.914 h |
| June | 24.3°C18.9°C | 18.9°C | 232 | 14.1 | 14.414 h |
| July | 27.8°C23.1°C | 23.1°C | 195 | 13.4 | 14.214 h |
| August | 29.4°C24.3°C | 24.3°C | 114 | 11.3 | 13.413 h |
| September, selected | 26.5°C21.0°C | 21.0°C | 181 | 13.0 | 12.412 h |
| October | 21.4°C15.6°C | 15.6°C | 179 | 10.9 | 11.411 h |
| November | 16.3°C10.0°C | 10.0°C | 100 | 8.8 | 10.410 h |
| December | 11.1°C5.3°C | 5.3°C | 86 | 10.7 | 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
- Izumisano in SeptemberJapan · 27 kmHigh 27.8°C · Low 20.4°C · 176 mm rain
- Kishiwada in SeptemberJapan · 34 kmHigh 27.0°C · Low 19.7°C · 176 mm rain
- Kawachi-Nagano in SeptemberJapan · 47 kmHigh 26.8°C · Low 19.1°C · 158 mm rain
- Sakai in SeptemberJapan · 50 kmHigh 27.3°C · Low 20.2°C · 158 mm rain
- Akashi in SeptemberJapan · 51 kmHigh 26.4°C · Low 21.2°C · 194 mm rain
- Tondabayashichō in SeptemberJapan · 52 kmHigh 27.2°C · Low 19.5°C · 158 mm rain
- Kobe in SeptemberJapan · 53 kmHigh 27.1°C · Low 21.2°C · 191 mm rain
- Tokushima in SeptemberJapan · 56 kmHigh 26.3°C · Low 21.5°C · 286 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 Minato) is explained once on the Minato year overview and on the Sources, method and limits page.