Climate averages 1991–2020
Saku weather
in October.
A mild, wet month: the 6th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Saku: daytime highs average 18.1°C and nights cool to about 10.1°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 161 mm of rain on roughly 13 days, which makes October a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 18 min on an average October day.
The nearest other city in this atlas is Ueda (27 km away). In October its highs average 18.4°C, about as warm as Saku, with 150 mm of rain.
Among the 303 cities listed in Japan, Saku ranks joint 268th of 303 for the warmest October highs and joint 130th of 303 for the driest October (rainfall, lowest first). The mean October high of those 303 cities is 20.4°C; Saku is 2.3°C cooler than that mean.
From October to November, average highs fall by 5.4°C to 12.7°C, and monthly rainfall falls from 161 mm to 64 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
Saku climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.9°C-4.4°C | -4.4°C | 55 | 7.6 | 10.010 h |
| February | 4.8°C-4.4°C | -4.4°C | 58 | 8.1 | 10.811 h |
| March | 9.0°C-0.9°C | -0.9°C | 99 | 11.7 | 11.912 h |
| April | 15.6°C4.8°C | 4.8°C | 102 | 12.3 | 13.113 h |
| May | 20.6°C10.6°C | 10.6°C | 131 | 14.9 | 14.114 h |
| June | 23.4°C15.3°C | 15.3°C | 197 | 19.8 | 14.615 h |
| July | 27.0°C19.3°C | 19.3°C | 220 | 21.6 | 14.414 h |
| August | 27.8°C20.2°C | 20.2°C | 174 | 21.5 | 13.514 h |
| September | 23.7°C16.4°C | 16.4°C | 187 | 17.6 | 12.412 h |
| October, selected | 18.1°C10.1°C | 10.1°C | 161 | 12.9 | 11.311 h |
| November | 12.7°C3.9°C | 3.9°C | 64 | 7.8 | 10.310 h |
| December | 6.9°C-1.1°C | -1.1°C | 48 | 7.9 | 9.710 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
- Ueda in OctoberJapan · 27 kmHigh 18.4°C · Low 9.8°C · 150 mm rain
- Matsumoto in OctoberJapan · 46 kmHigh 18.5°C · Low 9.6°C · 193 mm rain
- Takasaki in OctoberJapan · 50 kmHigh 18.9°C · Low 11.3°C · 225 mm rain
- Azumino in OctoberJapan · 54 kmHigh 18.4°C · Low 9.5°C · 193 mm rain
- Shibukawa in OctoberJapan · 55 kmHigh 19.0°C · Low 11.9°C · 180 mm rain
- Nagano in OctoberJapan · 55 kmHigh 18.0°C · Low 9.5°C · 161 mm rain
- Maebashi in OctoberJapan · 57 kmHigh 19.2°C · Low 11.8°C · 180 mm rain
- Kai in OctoberJapan · 59 kmHigh 19.8°C · Low 11.9°C · 186 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 Saku) is explained once on the Saku year overview and on the Sources, method and limits page.