Temperature
Warm by day, mild at night.
Warm days and some sun. Heavier storm-season rain is the main drawback.

Warm by day, mild at night.
Rain is frequent. About 17 wet days this month.
Cloudier spells limit sunshine.
Warm days, with humid periods.
In August, afternoons feel about 78° and nights feel near 67°.
Mostly cloudy skies this month.
Calm winds are typical in August.
August late afternoons are around 75°F, easing to about 70°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 25 | 12 | 3.5 | 21 | 7.2 | 79 |
| Feb | 28 | 16 | 3.6 | 20 | 8.4 | 76 |
| Mar | 38 | 26 | 4.0 | 17 | 9.2 | 74 |
| Apr | 53 | 38 | 4.4 | 14 | 9.7 | 70 |
| May | 63 | 48 | 4.7 | 17 | 9.6 | 71 |
| Jun | 71 | 58 | 5.1 | 17 | 9.6 | 78 |
| Jul | 79 | 67 | 4.4 | 15 | 8.8 | 81 |
| Aug | 79 | 67 | 8.4 | 17 | 8.4 | 82 |
| Sep | 72 | 56 | 5.3 | 12 | 8.3 | 80 |
| Oct | 58 | 43 | 5.7 | 17 | 8.0 | 78 |
| Nov | 45 | 32 | 6.5 | 21 | 6.9 | 81 |
| Dec | 29 | 17 | 5.5 | 25 | 6.7 | 81 |
Similar climates
Want a side-by-side climate view? Compare Biei with Nikko.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology