Climate averages 1991–2020
Saint-Marc weather
in December.
A hot, very dry month: the 10th warmest and one of the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Saint-Marc: daytime highs average 29.8°C and nights cool to about 22.9°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 11 mm of rain on roughly 3 days, which makes December a very dry month (one of the driest months of the year). Daylight, from sunrise to sunset, lasts about 11 h 00 min on an average December day.
The nearest other city in this atlas is Dessalines (26 km away). In December its highs average 30.7°C, 0.9°C warmer than Saint-Marc, with 12 mm of rain.
Among the 18 cities listed in Haiti, Saint-Marc ranks 5th of 18 for the warmest December highs and 3rd of 18 for the driest December (rainfall, lowest first). The mean December high of those 18 cities is 28.9°C; Saint-Marc is 0.9°C warmer than that mean.
From December to January, average highs fall by 0.3°C to 29.5°C, and monthly rainfall stays at 11 mm.
The annual picture
December 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
Saint-Marc climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.5°C22.2°C | 22.2°C | 11 | 2.6 | 11.111 h |
| February | 29.7°C22.3°C | 22.3°C | 11 | 2.8 | 11.512 h |
| March | 29.9°C22.7°C | 22.7°C | 20 | 5.8 | 12.012 h |
| April | 30.3°C23.7°C | 23.7°C | 37 | 11.9 | 12.613 h |
| May | 30.5°C24.7°C | 24.7°C | 73 | 17.1 | 13.013 h |
| June | 31.3°C25.4°C | 25.4°C | 63 | 17.0 | 13.313 h |
| July | 32.0°C25.6°C | 25.6°C | 63 | 16.6 | 13.213 h |
| August | 31.9°C25.8°C | 25.8°C | 84 | 19.2 | 12.813 h |
| September | 31.2°C25.5°C | 25.5°C | 97 | 20.8 | 12.312 h |
| October | 30.4°C25.0°C | 25.0°C | 87 | 18.8 | 11.712 h |
| November | 30.0°C24.0°C | 24.0°C | 45 | 9.5 | 11.211 h |
| December, selected | 29.8°C22.9°C | 22.9°C | 11 | 3.0 | 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
December in nearby cities
- Dessalines in DecemberHaiti · 26 kmHigh 30.7°C · Low 20.9°C · 12 mm rain
- Gonaïves in DecemberHaiti · 37 kmHigh 29.5°C · Low 22.0°C · 8.3 mm rain
- Arcahaie in DecemberHaiti · 43 kmHigh 29.2°C · Low 21.8°C · 8.3 mm rain
- Saint-Michel de l'Atalaye in DecemberHaiti · 48 kmHigh 27.6°C · Low 18.5°C · 23 mm rain
- Léogâne in DecemberHaiti · 67 kmHigh 28.9°C · Low 22.1°C · 29 mm rain
- Cité Soleil in DecemberHaiti · 70 kmHigh 30.3°C · Low 21.5°C · 36 mm rain
- Carrefour in DecemberHaiti · 72 kmHigh 29.1°C · Low 21.8°C · 31 mm rain
- Port-au-Prince in DecemberHaiti · 74 kmHigh 30.1°C · Low 21.0°C · 36 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 Saint-Marc) is explained once on the Saint-Marc year overview and on the Sources, method and limits page.