San Martín in September
6.1out of 10
Possible, with caveats
Warm and comfortable: highs around 28°C. Very wet: about 30 rainy days.
28°CAvg high
21°CAvg low
30Rainy days (507 mm)
12:02 hDaylight
05:47Sunrise · 17:50 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Very wet: about 30 rainy 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?
Rainfall in September is fairly consistent from year to year (0.6 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 | 29°C | 21°C | 110 mm | 20 | – | – | 6.2 |
| February | 29°C | 21°C | 143 mm | 19 | – | – | 6.2 |
| March | 29°C | 21°C | 273 mm | 27 | – | – | 6.1 |
| April | 28°C | 22°C | 475 mm | 30 | – | – | 6.1 |
| May | 28°C | 22°C | 643 mm | 31 | – | – | 6.1 |
| June | 28°C | 21°C | 619 mm | 30 | – | – | 6.1 |
| July | 28°C | 21°C | 591 mm | 31 | – | – | 6.1 |
| August | 28°C | 21°C | 588 mm | 31 | – | – | 6.1 |
| September | 28°C | 21°C | 507 mm | 30 | – | – | 6.1 |
| October | 28°C | 21°C | 452 mm | 30 | – | – | 6.1 |
| November | 28°C | 21°C | 379 mm | 29 | – | – | 6.1 |
| December | 28°C | 21°C | 207 mm | 27 | – | – | 6.1 |
Frequently asked questions
How hot is San Martín in September?
Daytime highs average 28°C and nights about 21°C.
When is the best time to visit San Martín?
The best months are January, February, March, April.