Average annual temperature is 16.8 °C
Absolute maximum temperature: 34.5 °C
Absolute minimum temperature: -3.4 °C
Number of sunny days: 170 days
Number of rainy days: 193 days
Number of snow days: 2 days
Look at detailed online map of Saikū
* Weather data for Saikū 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) | 14.9 | 15.7 | 21.6 | 24.2 | 28.8 | 29.2 | 34.5 | 34.1 | 32.2 | 27.0 | 24.9 | 19.7 |
| Average daytime temperature (°C) | 9.2 | 10.1 | 15.9 | 19.0 | 22.6 | 25.5 | 31.6 | 31.5 | 29.5 | 21.8 | 17.4 | 12.6 |
| Average temperature (°C) | 5.5 | 6.3 | 11.3 | 14.7 | 18.5 | 22.5 | 27.6 | 28.0 | 26.0 | 17.9 | 13.4 | 8.6 |
| Average night temperature (°C) | 2.6 | 3.2 | 7.2 | 10.9 | 15.0 | 19.9 | 24.2 | 25.4 | 23.4 | 14.5 | 9.9 | 5.3 |
| Absolute minimum temperature (°C) | -3.4 | 0.2 | 1.9 | 5.5 | 9.7 | 15.1 | 19.8 | 23.7 | 20.1 | 10.6 | 4.7 | 0.8 |
| 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 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 7.4 | 7.3 | 8.3 | 8.3 | 9.1 | 6.8 | 10.8 | 10.0 | 9.4 | 8.7 | 7.6 | 7.5 |
| Precipitation (mm) | 35 | 36 | 95 | 149 | 220 | 454 | 65 | 300 | 111 | 165 | 74 | 54 |
| Sunny days | 15 | 18 | 17 | 14 | 16 | 10 | 8 | 3 | 7 | 20 | 20 | 22 |
| Rainy days | 14 | 10 | 14 | 16 | 15 | 20 | 23 | 28 | 23 | 11 | 10 | 9 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Saikū during the most sunny months:
The largest precipitation sum in Saikū is at