Climate averages 1991–2020
Kōriyama weather
in October.
A mild, wet month: the 6th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a mild month in Kōriyama: daytime highs average 17.9°C and nights cool to about 10.5°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 136 mm of rain on roughly 11 days, which makes October a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 16 min on an average October day.
The nearest other city in this atlas is Sukagawa (13 km away). In October its highs average 17.9°C, about as warm as Kōriyama, with 150 mm of rain.
Among the 303 cities listed in Japan, Kōriyama ranks joint 271st of 303 for the warmest October highs and 72nd of 303 for the driest October (rainfall, lowest first). The mean October high of those 303 cities is 20.4°C; Kōriyama is 2.5°C cooler than that mean.
From October to November, average highs fall by 5.8°C to 12.1°C, and monthly rainfall falls from 136 mm to 66 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
Kōriyama climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.2°C-3.7°C | -3.7°C | 57 | 9.2 | 9.910 h |
| February | 4.2°C-3.6°C | -3.6°C | 48 | 8.4 | 10.811 h |
| March | 8.4°C-0.7°C | -0.7°C | 86 | 11.2 | 11.912 h |
| April | 14.9°C4.5°C | 4.5°C | 95 | 11.5 | 13.113 h |
| May | 20.1°C10.1°C | 10.1°C | 97 | 11.5 | 14.214 h |
| June | 23.4°C15.0°C | 15.0°C | 112 | 13.1 | 14.715 h |
| July | 26.6°C19.3°C | 19.3°C | 173 | 17.3 | 14.514 h |
| August | 27.8°C20.6°C | 20.6°C | 130 | 14.6 | 13.614 h |
| September | 23.7°C16.8°C | 16.8°C | 151 | 13.2 | 12.512 h |
| October, selected | 17.9°C10.5°C | 10.5°C | 136 | 10.8 | 11.311 h |
| November | 12.1°C4.2°C | 4.2°C | 66 | 8.1 | 10.210 h |
| December | 6.2°C-0.6°C | -0.6°C | 49 | 9.3 | 9.610 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
- Sukagawa in OctoberJapan · 13 kmHigh 17.9°C · Low 10.5°C · 150 mm rain
- Fukushima in OctoberJapan · 40 kmHigh 18.6°C · Low 10.4°C · 144 mm rain
- Aizu-Wakamatsu in OctoberJapan · 40 kmHigh 17.6°C · Low 10.5°C · 125 mm rain
- Nasushiobara in OctoberJapan · 55 kmHigh 18.3°C · Low 10.8°C · 185 mm rain
- Iwaki in OctoberJapan · 59 kmHigh 19.6°C · Low 14.1°C · 223 mm rain
- Yonezawa in OctoberJapan · 61 kmHigh 17.6°C · Low 10.1°C · 139 mm rain
- Ōtawara in OctoberJapan · 67 kmHigh 18.6°C · Low 10.8°C · 169 mm rain
- Hitachi in OctoberJapan · 92 kmHigh 19.8°C · Low 14.8°C · 211 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 Kōriyama) is explained once on the Kōriyama year overview and on the Sources, method and limits page.