Northbrook in September
7.8out of 10
Yes, a good time to go
Mild: highs around 22°C. Frequent rain: about 10 rainy days.
22°CAvg high
17°CAvg low
10Rainy days (83 mm)
12:16 hDaylight
06:38Sunrise · 18:54 Sunset
Why this score
- Mild: highs around 22°C
- Frequent rain: about 10 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in September is fairly consistent from year to year (3.0 days). 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 | -1°C | -6°C | 75 mm | 10 | – | – | 3.8 |
| February | 0°C | -6°C | 62 mm | 8 | – | – | 4.1 |
| March | 3°C | -2°C | 74 mm | 10 | – | – | 4.6 |
| April | 8°C | 4°C | 120 mm | 12 | – | – | 5.1 |
| May | 15°C | 10°C | 106 mm | 12 | – | – | 6.3 |
| June | 22°C | 18°C | 89 mm | 11 | – | – | 7.6 |
| July | 26°C | 21°C | 78 mm | 10 | – | – | 7.7 |
| August | 26°C | 21°C | 96 mm | 10 | – | – | 7.6 |
| September | 22°C | 17°C | 83 mm | 10 | – | – | 7.8 |
| October | 15°C | 11°C | 101 mm | 10 | – | – | 6.5 |
| November | 8°C | 4°C | 87 mm | 10 | – | – | 5.5 |
| December | 3°C | -2°C | 78 mm | 10 | – | – | 4.3 |
Frequently asked questions
How hot is Northbrook in September?
Daytime highs average 22°C and nights about 17°C.
When is the best time to visit Northbrook?
The best months are September, July, June, August.