Tamarindo weather in September
September in Tamarindo: hot, soaked, with clean air — fine if you can take 28 rainy days.
#9 of 12 months in Tamarindo · #701 of 897 destinations to visit in September · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Tamarindo in September
No notes yet. Open Tamarindo on the map to add the first one.
Tamarindo climate normals — September
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Rainfall | 300 mm / 11.8 in | ⛈ soaked |
| Rainy days | 28 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 24°C / 76°F | |
| Sunshine | 8.5 h/day | |
| Daylight | 12.2 h | |
| Wind | 12 km/h / 7 mph | |
| Air quality (US AQI) | 27 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Tamarindo?
Loading map…
Tamarindo in September — FAQ
- Is September a good time to visit Tamarindo?
- September in Tamarindo: hot, soaked, with clean air — fine if you can take 28 rainy days. It ranks #9 of 12 months for Tamarindo on SeasonMap's comfort score (68/100).
- What is the weather like in Tamarindo in September?
- In September, Tamarindo averages a daily high of 29.1°C and a low of 25°C, with about 299.9 mm of rain over roughly 28.4 rainy days.
- What is the air quality in Tamarindo in September?
- Tamarindo has a mean US Air Quality Index of about 27 in September.