Cap-Haïtien weather in August
August in Cap-Haïtien: sweltering, a little rain, with clean air — an excellent time to visit.
#7 of 12 months in Cap-Haïtien · #212 of 604 destinations to visit in August · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Cap-Haïtien climate normals — August
| Daytime high | 30°C / 85°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 36°C / 97°F | |
| Rainfall | 72 mm / 2.8 in | 🌦 some rain |
| Rainy days | 17 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 11.4 h/day | |
| Daylight | 12.8 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 49 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Cap-Haïtien?
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Cap-Haïtien in August — FAQ
- Is August a good time to visit Cap-Haïtien?
- August in Cap-Haïtien: sweltering, a little rain, with clean air — an excellent time to visit. It ranks #7 of 12 months for Cap-Haïtien on SeasonMap's comfort score (84/100).
- What is the weather like in Cap-Haïtien in August?
- In August, Cap-Haïtien averages a daily high of 29.6°C and a low of 26.2°C, with about 71.6 mm of rain over roughly 17.4 rainy days.
- What is the air quality in Cap-Haïtien in August?
- Cap-Haïtien has a mean US Air Quality Index of about 49 in August.