San Martín in September
8.8out of 10
Yes, a good time to go
Warm and comfortable: highs around 22°C. Very dry: about 2 rainy days.
22°CAvg high
9°CAvg low
2Rainy days (11 mm)
11:48 hDaylight
07:34Sunrise · 19:22 Sunset
Why this score
- Warm and comfortable: highs around 22°C
- Very dry: about 2 rainy days
What to wear and pack
- T-shirts and light layers
- A light jacket for cooler evenings
How reliable is the forecast?
Rainfall in September is fairly consistent from year to year (2.0 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 | 33°C | 20°C | 48 mm | 8 | – | – | 6.8 |
| February | 32°C | 19°C | 38 mm | 6 | – | – | 7.5 |
| March | 29°C | 17°C | 43 mm | 6 | – | – | 8.3 |
| April | 24°C | 12°C | 20 mm | 4 | – | – | 8.5 |
| May | 19°C | 8°C | 12 mm | 3 | – | – | 8.2 |
| June | 15°C | 4°C | 6 mm | 1 | – | – | 7.9 |
| July | 15°C | 3°C | 6 mm | 2 | – | – | 7.8 |
| August | 19°C | 6°C | 10 mm | 2 | – | – | 8.3 |
| September | 22°C | 9°C | 11 mm | 2 | – | – | 8.8 |
| October | 27°C | 13°C | 20 mm | 4 | – | – | 8.6 |
| November | 30°C | 17°C | 27 mm | 5 | – | – | 8.1 |
| December | 33°C | 19°C | 38 mm | 7 | – | – | 7.1 |
Frequently asked questions
How hot is San Martín in September?
Daytime highs average 22°C and nights about 9°C.
When is the best time to visit San Martín?
The best months are September, October, April, March.