Chichibu-Tama-Kai National Park
- Annual mean
- 9.9 °C
- Warmest month
- August
- Wettest month
- September
Long-term monthly averages for temperature, precipitation, humidity, and daylight
At the representative location for Minami Alps National Park, monthly mean temperatures range from -5.1 to 19.6 °C (1991–2020). Compare precipitation, humidity, wind, and daylight for each month.

Analyzing thirty years of baseline temperature trends alongside monthly daily precipitation averages.
Track average temperature bounds, daily precipitation rates, and calculated daylight across the calendar year.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | -5.1 °C-15.4° to 5.1° | 1.8 mm/day | 88.2% | 4 m/s | 9.9 hours |
| February | -4.2 °C-15.4° to 7.5° | 2.3 mm/day | 85.7% | 3.9 m/s | 10.7 hours |
| March | -0.1 °C-11.8° to 12.2° | 3.8 mm/day | 82.8% | 3.7 m/s | 11.8 hours |
| April | 5.4 °C-6.4° to 17.8° | 4.3 mm/day | 80.2% | 3.4 m/s | 12.9 hours |
| May | 10.8 °C-1.2° to 21.3° | 4.5 mm/day | 80.1% | 3 m/s | 13.9 hours |
| June | 15 °C5.7° to 23.8° | 5.9 mm/day | 84.6% | 2.6 m/s | 14.4 hours |
| July | 18.8 °C11.6° to 26.5° | 6.7 mm/day | 87.2% | 2.7 m/s | 14.1 hours |
| August | 19.6 °C12.3° to 26.9° | 4.8 mm/day | 86.3% | 2.3 m/s | 13.3 hours |
| September | 16.1 °C6.2° to 24.7° | 6.7 mm/day | 86.8% | 2.4 m/s | 12.2 hours |
| October | 10.2 °C-1.1° to 20.4° | 5.4 mm/day | 86.5% | 2.5 m/s | 11.1 hours |
| November | 4.1 °C-5.8° to 14.8° | 2.7 mm/day | 86.3% | 2.9 m/s | 10.1 hours |
| December | -1.9 °C-12.2° to 9.3° | 1.8 mm/day | 87.4% | 3.7 m/s | 9.6 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparing long term monthly averages for temperature, precipitation, wind, and daylight duration
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Contrast annual temperature patterns and seasonal precipitation across regional protected landscapes


Explore the map, landscapes, and protection details for Minami Alps National Park.