Beijing is warmest in June, averaging 34° by day and 18° at night. The wettest month is July with 248 mm, and the year brings about 733 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 2° | -10° | 3 mm | 9.5 h | Cool |
| February | 6° | -7° | 11 mm | 10.4 h | Cool |
| March | 15° | -1° | 16 mm | 11.7 h | Mild |
| April | 22° | 5° | 21 mm | 13.1 h | Sightseeing |
| May | 29° | 13° | 37 mm | 14.2 h | Beach weather |
| June | 34° | 18° | 66 mm | 14.8 h | Beach weather |
| July | 32° | 21° | 248 mm | 14.6 h | Rainy season |
| August | 30° | 20° | 195 mm | 13.6 h | Rainy season |
| September | 26° | 14° | 90 mm | 12.2 h | Beach weather |
| October | 19° | 6° | 19 mm | 10.9 h | Sightseeing |
| November | 11° | -2° | 24 mm | 9.7 h | Cool |
| December | 2° | -8° | 3 mm | 9.2 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 13°, and at most 90 mm of rain in a month.
Walking the city: April and October — highs of 19–22° and no more than 21 mm of rain a month.
Wet season: July and August — up to 248 mm in a single month.