Prague is warmest in July, averaging 26° by day and 14° at night. The wettest month is June with 105 mm, and the year brings about 730 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 3° | -4° | 40 mm | 8.3 h | Cool |
| February | 6° | -4° | 48 mm | 9.8 h | Cool |
| March | 10° | -1° | 31 mm | 11.6 h | Cool |
| April | 13° | 4° | 42 mm | 13.5 h | Mild |
| May | 18° | 8° | 78 mm | 15.2 h | Sightseeing |
| June | 24° | 12° | 105 mm | 16.1 h | Mild |
| July | 26° | 14° | 74 mm | 15.7 h | Beach weather |
| August | 26° | 14° | 105 mm | 14.3 h | Beach weather |
| September | 22° | 10° | 72 mm | 12.4 h | Sightseeing |
| October | 16° | 5° | 43 mm | 10.4 h | Mild |
| November | 8° | 1° | 42 mm | 8.7 h | Cool |
| December | 3° | -2° | 50 mm | 7.9 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: July and August — highs around 26°, nights no colder than 14°, and at most 105 mm of rain in a month.
Walking the city: May and September — highs of 18–22° and no more than 78 mm of rain a month.