Bertioga in September
6.8out of 10
Possible, with caveats
Warm and comfortable: highs around 23°C. Very wet: about 15 rainy days.
23°CAvg high
15°CAvg low
15Rainy days (146 mm)
11:52 hDaylight
06:03Sunrise · 17:55 Sunset
Why this score
- Warm and comfortable: highs around 23°C
- Very wet: about 15 rainy days
- Rain varies a lot between years (±4.7 days)
What to wear and pack
- T-shirts and light layers
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±4.7 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 | 28°C | 20°C | 405 mm | 27 | – | – | 6.1 |
| February | 28°C | 20°C | 342 mm | 24 | – | – | 6.1 |
| March | 27°C | 20°C | 329 mm | 26 | – | – | 6.1 |
| April | 26°C | 18°C | 146 mm | 17 | – | – | 6.5 |
| May | 23°C | 16°C | 110 mm | 13 | – | – | 7.2 |
| June | 23°C | 14°C | 82 mm | 9 | – | – | 7.8 |
| July | 22°C | 14°C | 94 mm | 9 | – | – | 7.8 |
| August | 23°C | 14°C | 80 mm | 10 | – | – | 7.8 |
| September | 23°C | 15°C | 146 mm | 15 | – | – | 6.8 |
| October | 25°C | 17°C | 181 mm | 18 | – | – | 6.2 |
| November | 25°C | 18°C | 243 mm | 21 | – | – | 6.1 |
| December | 27°C | 20°C | 301 mm | 25 | – | – | 6.1 |
Frequently asked questions
How hot is Bertioga in September?
Daytime highs average 23°C and nights about 15°C.
When is the best time to visit Bertioga?
The best months are June, July, August, May.