Climate averages 1991–2020
Saint-Marc weather
in May.
A hot, moderately wet month: the 5th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Saint-Marc: daytime highs average 30.5°C and nights cool to about 24.7°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 73 mm of rain on roughly 17 days, which makes May a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 01 min on an average May day.
The nearest other city in this atlas is Dessalines (26 km away). In May its highs average 32.1°C, 1.5°C warmer than Saint-Marc, with 176 mm of rain.
Among the 18 cities listed in Haiti, Saint-Marc ranks 7th of 18 for the warmest May highs and 4th of 18 for the driest May (rainfall, lowest first). The mean May high of those 18 cities is 30.2°C; Saint-Marc is 0.4°C warmer than that mean.
From May to June, average highs rise by 0.8°C to 31.3°C, and monthly rainfall falls from 73 mm to 63 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Dessalines in MayHaiti · 26 kmHigh 32.1°C · Low 23.4°C · 176 mm rain
- Gonaïves in MayHaiti · 37 kmHigh 30.4°C · Low 23.7°C · 53 mm rain
- Arcahaie in MayHaiti · 43 kmHigh 30.3°C · Low 24.0°C · 56 mm rain
- Saint-Michel de l'Atalaye in MayHaiti · 48 kmHigh 29.5°C · Low 20.7°C · 211 mm rain
- Léogâne in MayHaiti · 67 kmHigh 30.2°C · Low 24.1°C · 134 mm rain
- Cité Soleil in MayHaiti · 70 kmHigh 31.3°C · Low 24.3°C · 240 mm rain
- Carrefour in MayHaiti · 72 kmHigh 30.3°C · Low 24.0°C · 186 mm rain
- Port-au-Prince in MayHaiti · 74 kmHigh 31.2°C · Low 23.8°C · 240 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.