Rio Claro in September
7.5out of 10
Yes, a good time to go
Warm and comfortable: highs around 25°C. Frequent rain: about 12 rainy days.
25°CAvg high
16°CAvg low
12Rainy days (78 mm)
11:53 hDaylight
05:55Sunrise · 17:47 Sunset
Why this score
- Warm and comfortable: highs around 25°C
- Frequent rain: about 12 rainy days
- Rain varies a lot between years (±4.2 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 (±4.2 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 | 21°C | 296 mm | 24 | – | – | 6.1 |
| February | 29°C | 20°C | 206 mm | 20 | – | – | 6.1 |
| March | 28°C | 20°C | 201 mm | 23 | – | – | 6.1 |
| April | 27°C | 18°C | 102 mm | 14 | – | – | 7.1 |
| May | 24°C | 16°C | 63 mm | 11 | – | – | 7.7 |
| June | 24°C | 15°C | 35 mm | 7 | – | – | 8.2 |
| July | 23°C | 14°C | 40 mm | 7 | – | – | 8.2 |
| August | 25°C | 15°C | 36 mm | 7 | – | – | 8.1 |
| September | 25°C | 16°C | 78 mm | 12 | – | – | 7.5 |
| October | 26°C | 18°C | 115 mm | 16 | – | – | 6.8 |
| November | 26°C | 19°C | 188 mm | 21 | – | – | 6.1 |
| December | 28°C | 20°C | 237 mm | 23 | – | – | 6.1 |
Frequently asked questions
How hot is Rio Claro in September?
Daytime highs average 25°C and nights about 16°C.
When is the best time to visit Rio Claro?
The best months are June, July, August, May.