Harbin is warmest in July, averaging 28° by day and 18° at night. The wettest month is August with 177 mm, and the year brings about 772 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | -14° | -25° | 6 mm | 8.9 h | Cool |
| February | -8° | -21° | 8 mm | 10.1 h | Cool |
| March | 4° | -10° | 16 mm | 11.6 h | Cool |
| April | 14° | -0° | 21 mm | 13.3 h | Mild |
| May | 20° | 8° | 78 mm | 14.7 h | Sightseeing |
| June | 25° | 14° | 144 mm | 15.5 h | Mild |
| July | 28° | 18° | 174 mm | 15.2 h | Mild |
| August | 26° | 17° | 177 mm | 13.9 h | Mild |
| September | 21° | 9° | 81 mm | 12.3 h | Sightseeing |
| October | 12° | -0° | 25 mm | 10.7 h | Mild |
| November | -1° | -10° | 36 mm | 9.2 h | Cool |
| December | -13° | -22° | 6 mm | 8.5 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: No month in Harbin combines swimming warmth with dry skies.
Walking the city: May and September — highs of 20–21° and no more than 81 mm of rain a month.