Hamilton in September
6.9out of 10
Possible, with caveats
Warm and comfortable: highs around 27°C. Very wet: about 15 rainy days.
27°CAvg high
25°CAvg low
15Rainy days (136 mm)
12:11 hDaylight
07:08Sunrise · 19:19 Sunset
Why this score
- Warm and comfortable: highs around 27°C
- Very wet: about 15 rainy days
- Rain varies a lot between years (±4.1 days)
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±4.1 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 | 20°C | 17°C | 105 mm | 13 | – | – | 6.9 |
| February | 19°C | 17°C | 101 mm | 12 | – | – | 6.9 |
| March | 19°C | 17°C | 108 mm | 12 | – | – | 6.9 |
| April | 20°C | 18°C | 81 mm | 10 | – | – | 7.4 |
| May | 22°C | 20°C | 86 mm | 10 | – | – | 7.8 |
| June | 25°C | 23°C | 109 mm | 12 | – | – | 7.3 |
| July | 27°C | 25°C | 105 mm | 15 | – | – | 7.0 |
| August | 27°C | 26°C | 123 mm | 16 | – | – | 6.7 |
| September | 27°C | 25°C | 136 mm | 15 | – | – | 6.9 |
| October | 25°C | 23°C | 138 mm | 14 | – | – | 7.0 |
| November | 23°C | 21°C | 93 mm | 11 | – | – | 7.6 |
| December | 21°C | 19°C | 97 mm | 11 | – | – | 7.4 |
Frequently asked questions
How hot is Hamilton in September?
Daytime highs average 27°C and nights about 25°C.
When is the best time to visit Hamilton?
The best months are May, November, April, December.