Climate averages 1991–2020
Matsuyama weather
in October.
A warm, wet month: the 6th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a warm month in Matsuyama: daytime highs average 22.1°C and nights cool to about 16.0°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 141 mm of rain on roughly 9 days, which makes October a wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 22 min on an average October day.
The nearest other city in this atlas is Shinagawa (32 km away). In October its highs average 21.2°C, 0.9°C cooler than Matsuyama, with 168 mm of rain.
Among the 303 cities listed in Japan, Matsuyama ranks joint 27th of 303 for the warmest October highs and joint 79th of 303 for the driest October (rainfall, lowest first). The mean October high of those 303 cities is 20.4°C; Matsuyama is 1.7°C warmer than that mean.
From October to November, average highs fall by 5.3°C to 16.8°C, and monthly rainfall falls from 141 mm to 83 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
Matsuyama climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 8.8°C3.1°C | 3.1°C | 69 | 11.4 | 10.210 h |
| February | 10.0°C3.2°C | 3.2°C | 82 | 10.6 | 10.911 h |
| March | 13.6°C5.7°C | 5.7°C | 118 | 12.3 | 12.012 h |
| April | 18.7°C10.3°C | 10.3°C | 133 | 11.0 | 13.013 h |
| May | 23.1°C15.2°C | 15.2°C | 154 | 11.1 | 13.914 h |
| June | 26.1°C19.7°C | 19.7°C | 268 | 15.7 | 14.414 h |
| July | 29.7°C24.0°C | 24.0°C | 239 | 16.8 | 14.214 h |
| August | 30.7°C24.9°C | 24.9°C | 156 | 15.8 | 13.413 h |
| September | 27.3°C21.5°C | 21.5°C | 187 | 13.6 | 12.412 h |
| October, selected | 22.1°C16.0°C | 16.0°C | 141 | 9.4 | 11.411 h |
| November | 16.8°C10.5°C | 10.5°C | 83 | 9.1 | 10.410 h |
| December | 11.3°C5.4°C | 5.4°C | 83 | 11.4 | 10.010 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
- Shinagawa in OctoberJapan · 32 kmHigh 21.2°C · Low 13.9°C · 168 mm rain
- Imabari in OctoberJapan · 34 kmHigh 21.4°C · Low 16.8°C · 148 mm rain
- Saijō in OctoberJapan · 40 kmHigh 22.4°C · Low 16.0°C · 166 mm rain
- Kure in OctoberJapan · 47 kmHigh 20.8°C · Low 16.0°C · 113 mm rain
- Niihama in OctoberJapan · 52 kmHigh 21.9°C · Low 15.7°C · 166 mm rain
- Iwakuni in OctoberJapan · 62 kmHigh 21.5°C · Low 15.5°C · 116 mm rain
- Higashihiroshima in OctoberJapan · 63 kmHigh 20.8°C · Low 13.2°C · 102 mm rain
- Hiroshima in OctoberJapan · 69 kmHigh 21.5°C · Low 13.7°C · 109 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 Matsuyama) is explained once on the Matsuyama year overview and on the Sources, method and limits page.