Cartagena weather in August
August in Cartagena: sweltering, soaked, with clean air — a great time to visit.
#10 of 12 months in Cartagena · #366 of 604 destinations to visit in August · comfort 74/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Cartagena climate normals — August
| Daytime high | 30°C / 86°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 37°C / 99°F | |
| Rainfall | 215 mm / 8.5 in | ⛈ soaked |
| Rainy days | 29 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 25°C / 77°F | |
| Sunshine | 9.4 h/day | |
| Daylight | 12.5 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cartagena in August — FAQ
- Is August a good time to visit Cartagena?
- August in Cartagena: sweltering, soaked, with clean air — a great time to visit. It ranks #10 of 12 months for Cartagena on SeasonMap's comfort score (74/100).
- What is the weather like in Cartagena in August?
- In August, Cartagena averages a daily high of 29.8°C and a low of 25.9°C, with about 215.1 mm of rain over roughly 28.6 rainy days.
- What is the air quality in Cartagena in August?
- Cartagena has a mean US Air Quality Index of about 48 in August.