Average annual temperature is 11.7 °C
Absolute maximum temperature: 28.8 °C
Absolute minimum temperature: -12.2 °C
Number of sunny days: 119 days
Number of rainy days: 236 days
Number of snow days: 10 days
Look at detailed online map of Suyama
* Weather data for Suyama Japan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 11.7 | 11.0 | 18.7 | 19.6 | 25.0 | 25.0 | 28.8 | 27.7 | 27.3 | 23.3 | 19.9 | 14.9 |
| Average daytime temperature (°C) | 4.6 | 5.7 | 11.0 | 14.0 | 17.0 | 21.1 | 25.3 | 26.1 | 24.1 | 16.8 | 13.0 | 8.0 |
| Average temperature (°C) | 0.1 | 1.5 | 7.3 | 10.2 | 13.4 | 17.7 | 21.6 | 22.3 | 20.5 | 13.2 | 8.8 | 3.7 |
| Average night temperature (°C) | -3.7 | -2.3 | 3.9 | 6.7 | 10.0 | 15.1 | 18.8 | 19.8 | 17.9 | 9.6 | 5.2 | -0.1 |
| Absolute minimum temperature (°C) | -12.2 | -9.6 | -4.0 | -1.6 | 4.7 | 11.7 | 15.5 | 18.0 | 12.8 | 6.1 | -1.5 | -8.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.5 | 14.3 | 13.5 | 12.4 | 11.3 | 10.3 | 9.8 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 7.0 | 6.9 | 7.9 | 8.3 | 8.3 | 7.0 | 9.9 | 10.7 | 9.4 | 8.8 | 7.6 | 7.4 |
| Precipitation (mm) | 47 | 140 | 281 | 382 | 504 | 899 | 181 | 201 | 211 | 182 | 217 | 116 |
| Sunny days | 15 | 11 | 12 | 10 | 8 | 4 | 4 | 6 | 6 | 7 | 16 | 20 |
| Rainy days | 12 | 11 | 19 | 20 | 23 | 26 | 27 | 25 | 24 | 24 | 14 | 11 |
| Snow days | 4 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Suyama during the most sunny months:
The largest precipitation sum in Suyama is at