Climate averages 1991–2020
Tōkai weather
in September.
A warm, very wet month: the 3rd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Tōkai: daytime highs average 26.8°C and nights cool to about 20.1°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 192 mm of rain on roughly 12 days, which makes September a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 26 min on an average September day.
The nearest other city in this atlas is Kariya (8 km away). In September its highs average 27.1°C, about as warm as Tōkai, with 192 mm of rain.
Among the 303 cities listed in Japan, Tōkai ranks joint 72nd of 303 for the warmest September highs and joint 168th of 303 for the driest September (rainfall, lowest first). The mean September high of those 303 cities is 25.7°C; Tōkai is 1.2°C warmer than that mean.
From September to October, average highs fall by 5.4°C to 21.5°C, and monthly rainfall falls from 192 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
Tōkai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.4°C0.0°C | 0.0°C | 53 | 5.6 | 10.110 h |
| February | 9.4°C0.3°C | 0.3°C | 62 | 6.5 | 10.911 h |
| March | 13.1°C3.1°C | 3.1°C | 107 | 9.6 | 11.912 h |
| April | 17.9°C8.0°C | 8.0°C | 116 | 9.9 | 13.013 h |
| May | 22.3°C13.3°C | 13.3°C | 138 | 10.3 | 14.014 h |
| June | 25.4°C18.1°C | 18.1°C | 178 | 13.4 | 14.514 h |
| July | 28.7°C22.5°C | 22.5°C | 186 | 14.7 | 14.314 h |
| August | 30.2°C23.6°C | 23.6°C | 110 | 12.4 | 13.513 h |
| September, selected | 26.8°C20.1°C | 20.1°C | 192 | 12.2 | 12.412 h |
| October | 21.5°C13.8°C | 13.8°C | 179 | 10.5 | 11.311 h |
| November | 16.0°C7.6°C | 7.6°C | 84 | 7.2 | 10.410 h |
| December | 10.7°C2.3°C | 2.3°C | 56 | 5.6 | 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
- Kariya in SeptemberJapan · 8 kmHigh 27.1°C · Low 20.3°C · 192 mm rain
- Handa in SeptemberJapan · 16 kmHigh 26.6°C · Low 20.8°C · 192 mm rain
- Anjō in SeptemberJapan · 17 kmHigh 27.1°C · Low 19.9°C · 192 mm rain
- Nagoya in SeptemberJapan · 18 kmHigh 27.1°C · Low 19.5°C · 186 mm rain
- Ama in SeptemberJapan · 20 kmHigh 27.0°C · Low 19.6°C · 248 mm rain
- Nishio in SeptemberJapan · 22 kmHigh 26.6°C · Low 20.7°C · 214 mm rain
- Kuwana in SeptemberJapan · 22 kmHigh 26.8°C · Low 19.6°C · 222 mm rain
- Toyota in SeptemberJapan · 23 kmHigh 27.1°C · Low 19.5°C · 239 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 Tōkai) is explained once on the Tōkai year overview and on the Sources, method and limits page.
Anjō, Kariya and Handa lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.