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Weather & Climate in Saint-Jean du Sud, Haiti
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Jean du Sud has a warm climate with an average annual temperature of 80°F (27°C). Winters average 77°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 204 sunny days per year. Annual precipitation totals 73.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 39 feet.
Temperature
77°F Jan (25°C)
82°F Jul (28°C)
| Annual Average | 79.8°F |
| 48% above US avg | |
| January Average | 77°F (25°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 204 days/yr |
Geography
| Elevation | 39 ft (12 m) |
| Area | 104.2 sq mi (269.8 km²) |
| Population Density | 5/sq mi |
| Coordinates | 18.0761°N, 73.8125°W |
| Timezone | America/Port-au-Prince |
Precipitation & Snow
Air Quality
Earthquake History
213 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.2.
| Aug 14, 2021 | Nippes, Haiti | M7.2 | 53 km | 10 km |
| Jan 12, 2010 | 10 km SE of Léogâne, Haiti | M7.0 | 137 km | 13 km |
| Jan 12, 2010 | 4 km SSW of Grangwav, Haiti | M6.0 | 114 km | 10 km |
| Jan 20, 2010 | 4 km ESE of Tigwav, Haiti | M5.9 | 111 km | 11 km |
| Jan 13, 2010 | Haiti region | M5.8 | 101 km | 10 km |
| Aug 15, 2021 | 15 km NNE of Chardonnière, Haiti | M5.8 | 46 km | 8 km |
| Jan 12, 2010 | Haiti region | M5.7 | 143 km | 10 km |
| Jan 13, 2010 | 5 km SE of Tigwav, Haiti | M5.6 | 110 km | 10 km |
| Jan 13, 2010 | 1 km SSE of Tigwav, Haiti | M5.6 | 108 km | 10 km |
| Jan 13, 2010 | 4 km SSW of Tigwav, Haiti | M5.4 | 104 km | 10 km |
| Jan 12, 2010 | Haiti region | M5.3 | 142 km | 10 km |
| Jan 24, 2022 | 4 km S of Anse-à-Veau, Haiti | M5.3 | 66 km | 10 km |
| Jan 13, 2010 | 12 km S of Tigwav, Haiti | M5.2 | 101 km | 10 km |
| Aug 14, 2021 | 11 km N of Baradères, Haiti | M5.2 | 60 km | 9 km |
| Jan 13, 2010 | 8 km SSW of Grangwav, Haiti | M5.2 | 111 km | 10 km |
| Jan 24, 2022 | 4 km E of Anse-à-Veau, Haiti | M5.1 | 71 km | 10 km |
| Mar 23, 2022 | 16 km N of Jérémie, Haiti | M5.1 | 86 km | 10 km |
| Jan 13, 2010 | 10 km SSE of Tigwav, Haiti | M5.1 | 107 km | 10 km |
| Jan 13, 2010 | 6 km W of Tigwav, Haiti | M5.1 | 102 km | 10 km |
| Aug 14, 2021 | 10 km WSW of Baradères, Haiti | M5.1 | 44 km | 13 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
17 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2025 | Melissa | Category 4 | 132 mph | 231 km |
| 2024 | Beryl | Category 4 | 150 mph | 186 km |
| 2024 | Oscar | Category 1 | 86 mph | 247 km |
| 2020 | Isaias | Category 1 | 81 mph | 294 km |
| 2016 | Matthew | Category 4 | 150 mph | 52 km |
| 2012 | Sandy | Category 3 | 115 mph | 285 km |
| 2010 | Tomas | Category 1 | 86 mph | 117 km |
| 2008 | Gustav | Category 1 | 92 mph | 107 km |
| 2007 | Dean | Category 4 | 144 mph | 151 km |
| 2006 | Ernesto | Category 1 | 75 mph | 176 km |
| 2005 | Dennis | Category 3 | 115 mph | 127 km |
| 2004 | Ivan | Category 4 | 155 mph | 229 km |
| 2001 | Iris | Category 1 | 86 mph | 132 km |
| 1998 | Georges | Category 1 | 75 mph | 146 km |
| 1988 | Gilbert | Category 4 | 127 mph | 87 km |
| 1987 | Emily | Category 2 | 109 mph | 265 km |
| 1980 | Allen | Category 5 | 173 mph | 31 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 3.2 m (11 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2010 | HAITI & DOMINICAN REPUBLIC | Eruption + Earthquake | 3.2 m | 316,000 | 142 km |
| 2021 | PORT-AU-PRINCE | Earthquake | — | 2,248 | 51 km |
| 1860 | ANSE-A-VEAU | Eruption + Earthquake | — | — | 69 km |
| 1860 | PETIT TROU NIPPES | Earthquake | — | — | 62 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 77°F (25°C) | 2.6 in | Coldest, Driest |
| February | 77°F (25°C) | 2.6 in | |
| March | 78°F (26°C) | 3.4 in | |
| April | 79°F (26°C) | 5.7 in | |
| May | 80°F (27°C) | 10.4 in | |
| June | 82°F (28°C) | 6.5 in | |
| July | 82°F (28°C) | 5.8 in | |
| August | 82°F (28°C) | 7.7 in | Warmest |
| September | 82°F (28°C) | 7.8 in | |
| October | 81°F (27°C) | 13.0 in | Wettest |
| November | 79°F (26°C) | 5.0 in | |
| December | 78°F (25°C) | 2.6 in |
Saint-Jean du Sud has a seasonal temperature swing of 6°F / from 77°F in January to 82°F in August. Total annual precipitation is 73.2 inches, with October being the wettest month (13.0") and January the driest (2.6").