Birmingham is warmest in August, averaging 21° by day and 11° at night. The wettest month is October with 109 mm, and the year brings about 815 mm in total.
Month by month
| Month | High | Low | Rain | Daylight | Good for |
|---|---|---|---|---|---|
| January | 7° | 1° | 65 mm | 7.9 h | Cool |
| February | 9° | 1° | 78 mm | 9.5 h | Cool |
| March | 11° | 2° | 65 mm | 11.5 h | Cool |
| April | 13° | 4° | 42 mm | 13.7 h | Mild |
| May | 17° | 6° | 65 mm | 15.5 h | Sightseeing |
| June | 20° | 9° | 54 mm | 16.6 h | Sightseeing |
| July | 21° | 11° | 65 mm | 16.1 h | Sightseeing |
| August | 21° | 11° | 50 mm | 14.5 h | Sightseeing |
| September | 19° | 9° | 63 mm | 12.4 h | Sightseeing |
| October | 15° | 7° | 109 mm | 10.3 h | Mild |
| November | 10° | 4° | 69 mm | 8.4 h | Cool |
| December | 7° | 3° | 90 mm | 7.4 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 Birmingham combines swimming warmth with dry skies.
Walking the city: May, June, July, August and September — highs of 17–21° and no more than 65 mm of rain a month.