Temperature
Warm by day, mild at night.
Warm days and some sun.

Warm by day, mild at night.
Several rainy days. About 13 wet days, more than in most months.
Cloudier spells limit sunshine.
Warm days, with humid periods.
In June, afternoons feel about 85° and nights feel near 76°.
Mostly cloudy skies this month.
Calm winds are typical in June.
June late afternoons are around 82°F, easing to about 77°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 45 | 33 | 2.3 | 8 | 6.5 | 73 |
| Feb | 49 | 36 | 2.2 | 9 | 6.7 | 73 |
| Mar | 57 | 44 | 3.2 | 11 | 7.2 | 72 |
| Apr | 68 | 54 | 3.7 | 10 | 8.1 | 71 |
| May | 77 | 63 | 4.7 | 10 | 8.6 | 72 |
| Jun | 83 | 71 | 9.6 | 13 | 7.9 | 79 |
| Jul | 89 | 79 | 7.6 | 15 | 9.2 | 79 |
| Aug | 89 | 78 | 6.6 | 15 | 9.2 | 79 |
| Sep | 82 | 70 | 3.4 | 10 | 8.7 | 79 |
| Oct | 73 | 59 | 2.0 | 6 | 8.0 | 75 |
| Nov | 62 | 48 | 2.0 | 7 | 6.9 | 74 |
| Dec | 50 | 37 | 1.5 | 6 | 6.9 | 71 |
Similar climates
Want a side-by-side climate view? Compare Zhangjiagang 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