Tianjin is warmest in June, averaging 34° by day and 19° at night. The wettest month is July with 285 mm, and the year brings about 837 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 3° | -8° | 3 mm | 9.5 h | Cool |
| February | 6° | -6° | 11 mm | 10.5 h | Cool |
| March | 15° | -1° | 16 mm | 11.7 h | Mild |
| April | 22° | 6° | 30 mm | 13.0 h | Sightseeing |
| May | 29° | 14° | 37 mm | 14.1 h | Beach weather |
| June | 34° | 19° | 72 mm | 14.7 h | Beach weather |
| July | 33° | 23° | 285 mm | 14.5 h | Rainy season |
| August | 31° | 21° | 229 mm | 13.5 h | Rainy season |
| September | 27° | 15° | 90 mm | 12.2 h | Beach weather |
| October | 20° | 7° | 25 mm | 10.9 h | Sightseeing |
| November | 12° | -1° | 36 mm | 9.8 h | Cool |
| December | 3° | -7° | 3 mm | 9.3 h | Cool |
High and low are average daily maximum and minimum, rain is typical monthly total, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER — averages, not promises.
When to go
Beach weather: May, June and September — highs around 30°, nights no colder than 14°, and at most 90 mm of rain in a month.
Walking the city: April and October — highs of 20–22° and no more than 30 mm of rain a month.
Wet season: July and August — up to 285 mm in a single month.