San Isidro in September
6.1out of 10
Possible, with caveats
Warm and comfortable: highs around 24°C. Very wet: about 30 rainy days.
24°CAvg high
21°CAvg low
30Rainy days (808 mm)
12:03 hDaylight
05:28Sunrise · 17:31 Sunset
Why this score
- Warm and comfortable: highs around 24°C
- Very wet: about 30 rainy days
What to wear and pack
- T-shirts and light layers
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in September is fairly consistent from year to year (0.2 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 | 24°C | 20°C | 210 mm | 25 | – | – | 6.1 |
| February | 24°C | 20°C | 141 mm | 22 | – | – | 6.1 |
| March | 25°C | 20°C | 138 mm | 25 | – | – | 6.1 |
| April | 25°C | 21°C | 329 mm | 29 | – | – | 6.1 |
| May | 24°C | 21°C | 726 mm | 31 | – | – | 6.1 |
| June | 24°C | 21°C | 710 mm | 30 | – | – | 6.1 |
| July | 24°C | 21°C | 834 mm | 31 | – | – | 6.1 |
| August | 24°C | 21°C | 933 mm | 31 | – | – | 6.1 |
| September | 24°C | 21°C | 808 mm | 30 | – | – | 6.1 |
| October | 24°C | 20°C | 947 mm | 31 | – | – | 6.1 |
| November | 24°C | 20°C | 930 mm | 30 | – | – | 6.1 |
| December | 24°C | 20°C | 414 mm | 29 | – | – | 6.1 |
Frequently asked questions
How hot is San Isidro in September?
Daytime highs average 24°C and nights about 21°C.
When is the best time to visit San Isidro?
The best months are January, February, March, April.