Climate averages 1991–2020
Seto weather
in October.
A mild, wet month: the 6th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Seto: daytime highs average 21.4°C and nights cool to about 12.8°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 171 mm of rain on roughly 10 days, which makes October a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 20 min on an average October day.
The nearest other city in this atlas is Tajimi (10 km away). In October its highs average 21.0°C, about as warm as Seto, with 200 mm of rain.
Among the 303 cities listed in Japan, Seto ranks joint 83rd of 303 for the warmest October highs and joint 151st of 303 for the driest October (rainfall, lowest first). The mean October high of those 303 cities is 20.4°C; Seto is 1.0°C warmer than that mean.
From October to November, average highs fall by 5.7°C to 15.7°C, and monthly rainfall falls from 171 mm to 85 mm.
The annual picture
October 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
Seto climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.8°C-1.1°C | -1.1°C | 54 | 5.7 | 10.110 h |
| February | 9.0°C-0.9°C | -0.9°C | 61 | 6.6 | 10.911 h |
| March | 12.9°C2.0°C | 2.0°C | 110 | 10.1 | 11.912 h |
| April | 18.0°C7.1°C | 7.1°C | 123 | 10.6 | 13.113 h |
| May | 22.5°C12.5°C | 12.5°C | 144 | 10.6 | 14.014 h |
| June | 25.6°C17.4°C | 17.4°C | 178 | 14.3 | 14.514 h |
| July | 28.9°C21.8°C | 21.8°C | 190 | 14.9 | 14.314 h |
| August | 30.5°C22.9°C | 22.9°C | 111 | 11.7 | 13.513 h |
| September | 26.9°C19.2°C | 19.2°C | 186 | 12.1 | 12.412 h |
| October, selected | 21.4°C12.8°C | 12.8°C | 171 | 10.3 | 11.311 h |
| November | 15.7°C6.4°C | 6.4°C | 85 | 7.2 | 10.310 h |
| December | 10.2°C1.1°C | 1.1°C | 55 | 6.0 | 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
October in nearby cities
- Tajimi in OctoberJapan · 10 kmHigh 21.0°C · Low 12.4°C · 200 mm rain
- Kasugai in OctoberJapan · 12 kmHigh 21.7°C · Low 13.0°C · 171 mm rain
- Toyota in OctoberJapan · 17 kmHigh 21.6°C · Low 13.0°C · 204 mm rain
- Komaki in OctoberJapan · 18 kmHigh 21.3°C · Low 12.5°C · 171 mm rain
- Nagoya in OctoberJapan · 19 kmHigh 21.5°C · Low 13.1°C · 171 mm rain
- Kani in OctoberJapan · 19 kmHigh 21.0°C · Low 12.1°C · 175 mm rain
- Ama in OctoberJapan · 28 kmHigh 21.5°C · Low 13.2°C · 192 mm rain
- Ichinomiya in OctoberJapan · 28 kmHigh 21.2°C · Low 12.7°C · 192 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 Seto) is explained once on the Seto year overview and on the Sources, method and limits page.
Nagoya, Kasugai and Komaki lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.