Santa Marta weather in September
September in Santa Marta: warm, soaked, with clean air — fine if you can take 23 rainy days.
#9 of 12 months in Santa Marta · #587 of 897 destinations to visit in September · comfort 76/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Santa Marta in September
No notes yet. Open Santa Marta on the map to add the first one.
Santa Marta climate normals — September
| Daytime high | 28°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 25°C / 78°F | |
| Rainfall | 226 mm / 8.9 in | ⛈ soaked |
| Rainy days | 23 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 24°C / 74°F | |
| Sunshine | 10 h/day | |
| Daylight | 12.2 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Santa Marta?
Loading map…
Santa Marta in September — FAQ
- Is September a good time to visit Santa Marta?
- September in Santa Marta: warm, soaked, with clean air — fine if you can take 23 rainy days. It ranks #9 of 12 months for Santa Marta on SeasonMap's comfort score (76/100).
- What is the weather like in Santa Marta in September?
- In September, Santa Marta averages a daily high of 28.4°C and a low of 25.3°C, with about 225.8 mm of rain over roughly 22.6 rainy days.
- What is the air quality in Santa Marta in September?
- Santa Marta has a mean US Air Quality Index of about 38 in September.