Mountain Brook in September
7.9out of 10
Yes, a good time to go
Warm and comfortable: highs around 29°C. Some rain: about 8 rainy days.
29°CAvg high
19°CAvg low
8Rainy days (86 mm)
12:12 hDaylight
06:35Sunrise · 18:47 Sunset
Why this score
- Warm and comfortable: highs around 29°C
- Some rain: about 8 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rain in September varies a lot between years (±3.8 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 13°C | 3°C | 126 mm | 10 | – | – | 5.9 |
| February | 15°C | 4°C | 130 mm | 11 | – | – | 6.3 |
| March | 19°C | 8°C | 145 mm | 11 | – | – | 6.8 |
| April | 23°C | 12°C | 119 mm | 10 | – | – | 7.6 |
| May | 27°C | 16°C | 99 mm | 10 | – | – | 7.6 |
| June | 30°C | 21°C | 109 mm | 14 | – | – | 6.7 |
| July | 32°C | 22°C | 114 mm | 15 | – | – | 6.1 |
| August | 32°C | 22°C | 96 mm | 13 | – | – | 6.6 |
| September | 29°C | 19°C | 86 mm | 8 | – | – | 7.9 |
| October | 24°C | 12°C | 85 mm | 7 | – | – | 8.2 |
| November | 18°C | 7°C | 105 mm | 8 | – | – | 7.2 |
| December | 14°C | 4°C | 131 mm | 10 | – | – | 6.1 |
Frequently asked questions
How hot is Mountain Brook in September?
Daytime highs average 29°C and nights about 19°C.
When is the best time to visit Mountain Brook?
The best months are October, September, April, May.