Climate averages 1991–2020
Moriyama 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 Moriyama: daytime highs average 20.6°C and nights cool to about 13.3°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 148 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 Kusatsu (6 km away). In October its highs average 20.9°C, about as warm as Moriyama, with 148 mm of rain.
Among the 303 cities listed in Japan, Moriyama ranks joint 168th of 303 for the warmest October highs and joint 97th of 303 for the driest October (rainfall, lowest first). The mean October high of those 303 cities is 20.4°C; Moriyama is 0.3°C warmer than that mean.
From October to November, average highs fall by 5.4°C to 15.2°C, and monthly rainfall falls from 148 mm to 74 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
Moriyama climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.1°C0.0°C | 0.0°C | 61 | 8.3 | 10.110 h |
| February | 8.0°C0.1°C | 0.1°C | 66 | 9.2 | 10.911 h |
| March | 11.9°C2.7°C | 2.7°C | 110 | 12.2 | 11.912 h |
| April | 17.4°C7.5°C | 7.5°C | 119 | 11.0 | 13.013 h |
| May | 22.1°C12.7°C | 12.7°C | 138 | 10.7 | 14.014 h |
| June | 25.5°C17.4°C | 17.4°C | 177 | 12.9 | 14.514 h |
| July | 29.1°C21.9°C | 21.9°C | 181 | 14.8 | 14.314 h |
| August | 30.5°C23.0°C | 23.0°C | 103 | 11.1 | 13.513 h |
| September | 26.3°C19.3°C | 19.3°C | 153 | 11.5 | 12.412 h |
| October, selected | 20.6°C13.3°C | 13.3°C | 148 | 9.6 | 11.311 h |
| November | 15.2°C7.6°C | 7.6°C | 74 | 6.7 | 10.410 h |
| December | 9.7°C2.4°C | 2.4°C | 58 | 7.7 | 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
- Kusatsu in OctoberJapan · 6 kmHigh 20.9°C · Low 13.3°C · 148 mm rain
- Ōmihachiman in OctoberJapan · 12 kmHigh 20.5°C · Low 13.2°C · 152 mm rain
- Ōtsu in OctoberJapan · 13 kmHigh 20.6°C · Low 12.8°C · 161 mm rain
- Kōka in OctoberJapan · 19 kmHigh 20.6°C · Low 13.0°C · 177 mm rain
- Youkaichi in OctoberJapan · 20 kmHigh 20.6°C · Low 13.2°C · 177 mm rain
- Kyoto in OctoberJapan · 21 kmHigh 21.1°C · Low 13.2°C · 161 mm rain
- Uji in OctoberJapan · 26 kmHigh 21.1°C · Low 13.3°C · 161 mm rain
- Jōyō in OctoberJapan · 30 kmHigh 20.9°C · Low 13.1°C · 143 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 Moriyama) is explained once on the Moriyama year overview and on the Sources, method and limits page.
Kusatsu lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.