Average annual temperature is 16.6 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -3.3 °C
Number of sunny days: 113 days
Number of rainy days: 247 days
Number of snow days: 5 days
Look at detailed online map of Mariyama
* Weather data for Mariyama 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) | 14.3 | 14.3 | 21.2 | 25.2 | 30.6 | 31.2 | 36.4 | 36.9 | 34.2 | 25.5 | 25.2 | 18.2 |
| Average daytime temperature (°C) | 7.3 | 8.1 | 14.1 | 17.5 | 21.7 | 25.6 | 31.1 | 33.4 | 30.1 | 21.3 | 16.9 | 11.4 |
| Average temperature (°C) | 5.0 | 5.7 | 10.7 | 13.8 | 18.0 | 22.2 | 27.5 | 29.6 | 26.3 | 18.0 | 13.6 | 8.6 |
| Average night temperature (°C) | 3.0 | 3.4 | 7.6 | 11.0 | 15.1 | 19.3 | 24.4 | 26.6 | 23.4 | 15.2 | 10.9 | 6.0 |
| Absolute minimum temperature (°C) | -3.3 | 0.1 | 2.7 | 6.5 | 10.2 | 15.2 | 19.9 | 24.7 | 18.8 | 11.1 | 4.8 | 0.6 |
| 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) | 5.3 | 5.8 | 7.9 | 8.0 | 9.0 | 7.7 | 9.6 | 10.4 | 9.2 | 8.5 | 7.0 | 5.7 |
| Precipitation (mm) | 174 | 115 | 127 | 212 | 254 | 315 | 216 | 112 | 177 | 154 | 172 | 200 |
| Sunny days | 3 | 4 | 16 | 14 | 14 | 9 | 12 | 7 | 8 | 12 | 9 | 5 |
| Rainy days | 27 | 21 | 15 | 16 | 17 | 21 | 19 | 24 | 22 | 19 | 21 | 25 |
| Snow days | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
The best time to visit Mariyama during the most sunny months:
The largest precipitation sum in Mariyama is at