Granby in September
7.3out of 10
Possible, with caveats
Mild: highs around 20°C. Frequent rain: about 11 rainy days.
20°CAvg high
10°CAvg low
11Rainy days (98 mm)
12:18 hDaylight
06:36Sunrise · 18:54 Sunset
Why this score
- Mild: highs around 20°C
- Frequent rain: about 11 rainy days
What to wear and pack
- Layers you can add or remove
- A light jacket for cooler evenings
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in September is fairly consistent from year to year (2.8 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 | -4°C | -13°C | 78 mm | 12 | – | – | 3.5 |
| February | -3°C | -12°C | 64 mm | 10 | – | – | 3.7 |
| March | 3°C | -6°C | 78 mm | 12 | – | – | 4.0 |
| April | 11°C | 1°C | 99 mm | 12 | – | – | 5.6 |
| May | 19°C | 8°C | 108 mm | 13 | – | – | 6.7 |
| June | 23°C | 13°C | 117 mm | 14 | – | – | 7.1 |
| July | 26°C | 16°C | 109 mm | 13 | – | – | 7.2 |
| August | 25°C | 15°C | 111 mm | 13 | – | – | 7.2 |
| September | 20°C | 10°C | 98 mm | 11 | – | – | 7.3 |
| October | 13°C | 4°C | 115 mm | 13 | – | – | 5.7 |
| November | 6°C | -2°C | 90 mm | 13 | – | – | 4.5 |
| December | -1°C | -9°C | 91 mm | 14 | – | – | 3.2 |
Frequently asked questions
How hot is Granby in September?
Daytime highs average 20°C and nights about 10°C.
When is the best time to visit Granby?
The best months are September, July, August, June.