Jiaxing is warmest in August, averaging 34° by day and 26° at night. The wettest month is June with 270 mm, and the year brings about 1563 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 10° | 0° | 62 mm | 8° | 10.2 h | Cool |
| February | 12° | 2° | 92 mm | 8° | 10.9 h | Cool |
| March | 17° | 6° | 130 mm | 11° | 11.8 h | Mild |
| April | 22° | 11° | 105 mm | 15° | 12.8 h | Mild |
| May | 27° | 17° | 124 mm | 20° | 13.6 h | Mild |
| June | 30° | 21° | 270 mm | 24° | 14.0 h | Rainy season |
| July | 32° | 26° | 273 mm | 28° | 13.8 h | Rainy season |
| August | 34° | 26° | 161 mm | 30° | 13.1 h | Mild |
| September | 30° | 21° | 165 mm | 28° | 12.2 h | Mild |
| October | 24° | 15° | 78 mm | 23° | 11.2 h | Sightseeing |
| November | 19° | 9° | 78 mm | 17° | 10.4 h | Sightseeing |
| December | 10° | 2° | 25 mm | 11° | 10.0 h | Cool |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: No month in Jiaxing combines swimming warmth with dry skies.
Walking the city: October and November — highs of 19–24° and no more than 78 mm of rain a month.
Wet season: June and July — up to 273 mm in a single month.