Tres Isletas in September
8.2out of 10
Yes, a good time to go
Warm and comfortable: highs around 28°C. Some rain: about 7 rainy days.
28°CAvg high
15°CAvg low
7Rainy days (58 mm)
11:51 hDaylight
07:00Sunrise · 18:52 Sunset
Why this score
- Warm and comfortable: highs around 28°C
- Some rain: about 7 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
How reliable is the forecast?
Rain in September varies a lot between years (±3.2 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 | 33°C | 22°C | 127 mm | 11 | – | – | 6.1 |
| February | 32°C | 22°C | 135 mm | 11 | – | – | 6.5 |
| March | 30°C | 20°C | 138 mm | 11 | – | – | 6.9 |
| April | 27°C | 18°C | 121 mm | 9 | – | – | 7.7 |
| May | 24°C | 14°C | 60 mm | 8 | – | – | 8.1 |
| June | 22°C | 12°C | 44 mm | 7 | – | – | 8.1 |
| July | 22°C | 11°C | 34 mm | 5 | – | – | 8.4 |
| August | 25°C | 13°C | 41 mm | 5 | – | – | 8.5 |
| September | 28°C | 15°C | 58 mm | 7 | – | – | 8.2 |
| October | 30°C | 18°C | 125 mm | 10 | – | – | 7.3 |
| November | 31°C | 19°C | 141 mm | 10 | – | – | 6.9 |
| December | 33°C | 21°C | 144 mm | 11 | – | – | 6.3 |
Frequently asked questions
How hot is Tres Isletas in September?
Daytime highs average 28°C and nights about 15°C.
When is the best time to visit Tres Isletas?
The best months are August, July, September, May.