Climate averages 1991–2020
Cap-Haïtien weather
in August.
A hot, moderately wet month: the 2nd warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Cap-Haïtien: daytime highs average 29.1°C and nights cool to about 25.8°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 82 mm of rain on roughly 19 days, which makes August a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 48 min on an average August day.
The nearest other city in this atlas is Saint-Michel de l'Atalaye (46 km away). In August its highs average 31.2°C, 2.0°C warmer than Cap-Haïtien, with 143 mm of rain.
Among the 18 cities listed in Haiti, Cap-Haïtien ranks 18th of 18 for the warmest August highs and 6th of 18 for the driest August (rainfall, lowest first). The mean August high of those 18 cities is 31.8°C; Cap-Haïtien is 2.6°C cooler than that mean.
From August to September, average highs rise by 0.1°C to 29.3°C, and monthly rainfall rises from 82 mm to 101 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Cap-Haïtien climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.9°C22.2°C | 22.2°C | 108 | 15.4 | 11.111 h |
| February | 25.9°C22.1°C | 22.1°C | 77 | 13.7 | 11.511 h |
| March | 26.0°C22.2°C | 22.2°C | 98 | 15.3 | 12.012 h |
| April | 26.7°C22.9°C | 22.9°C | 96 | 16.8 | 12.613 h |
| May | 27.7°C24.0°C | 24.0°C | 112 | 19.9 | 13.113 h |
| June | 28.9°C25.3°C | 25.3°C | 65 | 15.5 | 13.313 h |
| July | 29.0°C25.6°C | 25.6°C | 60 | 15.3 | 13.213 h |
| August, selected | 29.1°C25.8°C | 25.8°C | 82 | 19.3 | 12.813 h |
| September | 29.3°C25.5°C | 25.5°C | 101 | 22.2 | 12.312 h |
| October | 28.6°C24.8°C | 24.8°C | 125 | 23.4 | 11.712 h |
| November | 27.3°C23.8°C | 23.8°C | 151 | 22.0 | 11.211 h |
| December | 26.5°C23.0°C | 23.0°C | 101 | 17.8 | 11.011 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Saint-Michel de l'Atalaye in AugustHaiti · 46 kmHigh 31.2°C · Low 22.0°C · 143 mm rain
- Gonaïves in AugustHaiti · 62 kmHigh 32.2°C · Low 25.2°C · 58 mm rain
- Dessalines in AugustHaiti · 65 kmHigh 33.8°C · Low 24.6°C · 121 mm rain
- Port-de-Paix in AugustHaiti · 69 kmHigh 31.9°C · Low 26.2°C · 67 mm rain
- Saint-Marc in AugustHaiti · 89 kmHigh 31.9°C · Low 25.8°C · 84 mm rain
- Arcahaie in AugustHaiti · 115 kmHigh 31.9°C · Low 25.1°C · 36 mm rain
- Croix-des-Bouquets in AugustHaiti · 132 kmHigh 33.3°C · Low 25.7°C · 193 mm rain
- Cité Soleil in AugustHaiti · 132 kmHigh 33.4°C · Low 25.7°C · 193 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Cap-Haïtien) is explained once on the Cap-Haïtien year overview and on the Sources, method and limits page.