Temperature
Warm by day, mild at night.
80°Ftypical May high
Typical range
Warm days and some sun.

Warm by day, mild at night.
Several rainy days. About 9 wet days this month.
A mix of sunshine and cloud.
Warm days with mostly dry air.
In May, afternoons feel about 78° and nights feel near 65°.
Mostly cloudy skies this month.
Calm winds are typical in May.
May late afternoons are around 77°F, easing to about 73°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 45 | 30 | 0.9 | 5 | 7.1 | 70 |
| Feb | 51 | 35 | 1.1 | 5 | 7.0 | 68 |
| Mar | 60 | 43 | 1.9 | 8 | 7.3 | 66 |
| Apr | 72 | 54 | 2.1 | 8 | 8.3 | 67 |
| May | 80 | 63 | 3.1 | 9 | 8.5 | 68 |
| Jun | 86 | 71 | 4.0 | 9 | 9.0 | 70 |
| Jul | 90 | 76 | 5.1 | 13 | 8.7 | 77 |
| Aug | 88 | 74 | 4.8 | 12 | 8.4 | 75 |
| Sep | 79 | 66 | 3.9 | 10 | 6.8 | 76 |
| Oct | 70 | 55 | 3.0 | 9 | 6.6 | 76 |
| Nov | 58 | 44 | 1.8 | 7 | 6.3 | 75 |
| Dec | 49 | 34 | 0.8 | 5 | 6.6 | 70 |
Similar climates
Want a side-by-side climate view? Compare Shiyan with Tokyo.
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: Aug 26, 2026
Data & methodology