worldweather

Weather in Saint-Marc - 14-day forecast

Detailed weather forecast for Saint-Marc, Haiti: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Saint-Marc
today☀️ 30°💧 0.6 mm
Sun🌧️ 31°💧 20.8 mm
Mon🌧️ 30°💧 0.8 mm
Tue🌧️ 31°💧 5 mm
Wed🌧️ 30°💧 1.9 mm
Thu🌧️ 30°💧 4.5 mm
Fri🌧️ 31°💧 4.3 mm
Sat🌧️ 31°💧 0.8 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Saturday 5 Sept in Saint-Marc, the forecast high is 30°C. Typical daytime temperatures at this time of year range from 32°C to 35°C, so it will be exceptionally cool. It is cooler than 95% of similar days.

30°Cexceptionally cool
usually 32°C–35°C
cooler than 95% of similar days
night: exceptionally warm rain: typical rainfall wind: stronger than usual
31°Cexceptionally cool
usually 32°C–35°C
cooler than 92% of similar days
night: near normal rain: exceptionally wet wind: exceptionally strong
30°Cexceptionally cool
usually 32°C–36°C
cooler than 94% of similar days
night: exceptionally warm rain: typical rainfall wind: typical
31°Cexceptionally cool
usually 32°C–35°C
cooler than 91% of similar days
night: exceptionally warm rain: exceptionally wet wind: stronger than usual
30°Cexceptionally cool
usually 32°C–35°C
cooler than 95% of similar days
night: exceptionally warm rain: more rain than usual wind: stronger than usual
30°Cexceptionally cool
usually 32°C–35°C
cooler than 94% of similar days
night: exceptionally warm rain: exceptionally wet wind: stronger than usual
31°Ccooler than usual
usually 32°C–35°C
cooler than 89% of similar days
night: exceptionally warm rain: exceptionally wet wind: exceptionally strong

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
25°33°40° 1981: 33°C1982: 33°C1983: 35°C1984: 33°C1985: 31°C1986: 35°C1987: 34°C1988: 34°C1989: 35°C1990: 35°C1991: 35°C1992: 34°C1993: 34°C1994: 34°C1995: 35°C1996: 33°C1997: 34°C1998: 34°C1999: 33°C2000: 32°C2001: 34°C2002: 34°C2003: 35°C2004: 33°C2005: 35°C2006: 34°C2007: 33°C2008: 30°C2009: 34°C2010: 33°C2011: 33°C2012: 34°C2013: 34°C2014: 33°C2015: 36°C2016: 35°C2017: 32°C2018: 34°C2019: 34°C2020: 32°C2021: 34°C2022: 35°C2023: 35°C2024: 35°C2025: 34°C 2026 forecast: 31°C current forecast 31°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 34°C by day. The coolest year was 2008 (30°C) and the warmest was 2015 (36°C). The current forecast averages 31°C - lower than in 98% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Saint-Marc

Saint-Marc - 14-day weather forecast infographic

Saint-Marc 30 & 45-day weather - long-range outlook

Next 15 days · forecast
30°
around 27° at night · days with rain: 10
Weeks 3-4 · avg for September
34°
around 26° at night · rain chance 15%
Weeks 5-7 · avg for October
33°
around 26° at night · rain chance 18%
The 30 & 45-day outlook for Saint-Marc: the next 15 days are a numerical forecast updated daily - on average 30° by day and 27° at night. Further out we rely on multi-year climate averages: around 34° in September, and about 33° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Saint-Marc

Saturday5 September 2026
☀️30°clear sky
sunrise 06:36 · sunset 19:02 · night 29° · evening 30° · rain 0.56 mm · humidity 67% · wind 5 m/s · clouds 4%
Sunday6 September 2026
🌧️31°heavy rain
sunrise 06:37 · sunset 19:01 · night 25° · evening 30° · rain 20.84 mm · humidity 66% · wind 7 m/s · clouds 3%
Monday7 September 2026
🌧️30°light rain
sunrise 06:37 · sunset 19:00 · night 29° · evening 30° · rain 0.77 mm · humidity 62% · wind 4 m/s · clouds 83%
Tuesday8 September 2026
🌧️31°moderate rain
sunrise 06:37 · sunset 19:00 · night 28° · evening 31° · rain 4.95 mm · humidity 58% · wind 5 m/s · clouds 3%
Wednesday9 September 2026
🌧️30°light rain
sunrise 06:37 · sunset 18:59 · night 28° · evening 30° · rain 1.87 mm · humidity 65% · wind 5 m/s · clouds 15%
Thursday10 September 2026
🌧️30°moderate rain
sunrise 06:37 · sunset 18:58 · night 28° · evening 30° · rain 4.47 mm · humidity 61% · wind 5 m/s · clouds 96%
Friday11 September 2026
🌧️31°moderate rain
sunrise 06:38 · sunset 18:57 · night 27° · evening 30° · rain 4.32 mm · humidity 58% · wind 7 m/s · clouds 32%
Saturday12 September 2026
🌧️31°light rain
sunrise 06:38 · sunset 18:56 · night 28° · evening 31° · rain 0.78 mm · humidity 56% · wind 4 m/s · clouds 13%
Sunday13 September 2026
🌧️31°light rain
sunrise 06:38 · sunset 18:55 · night 28° · evening 30° · rain 0.48 mm · humidity 52% · wind 5 m/s · clouds 4%
Monday14 September 2026
🌧️30°light rain
sunrise 06:38 · sunset 18:54 · night 28° · evening 30° · rain 1.17 mm · humidity 58% · wind 5 m/s · clouds 36%
Tuesday15 September 2026
🌧️31°light rain
sunrise 06:38 · sunset 18:53 · night 27° · evening 30° · rain 5.07 mm · humidity 59% · wind 4 m/s · clouds 5%
Wednesday16 September 2026
🌧️30°moderate rain
sunrise 06:38 · sunset 18:53 · night 25° · evening 30° · rain 17.58 mm · humidity 56% · wind 4 m/s · clouds 95%
Thursday17 September 2026
🌧️30°light rain
sunrise 06:39 · sunset 18:52 · night 28° · evening 30° · rain 0.54 mm · humidity 57% · wind 3 m/s · clouds 97%
Friday18 September 2026
🌧️30°moderate rain
sunrise 06:39 · sunset 18:51 · night 26° · evening 28° · rain 10.65 mm · humidity 60% · wind 4 m/s · clouds 89%
Saturday19 September 2026
🌧️30°light rain
sunrise 06:39 · sunset 18:50 · night 28° · evening 30° · rain 1.59 mm · humidity 63% · wind 3 m/s · clouds 100%

UV index in Saint-Marc - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTSaint-Marc03681111+8.8UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.Unprotected fair skin may burn in about 25 min9Sat5.099Sun6.098Mon7.099Tue8.099Wed9.099Thu10.099Fri11.099Sat12.099Sun13.099Mon14.098Tue15.098Wed16.097Thu17.096Fri18.097Sat19.099Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Saint-Marc is 9 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

Sea temperature - Saint-Marc

Water today
31°C
Week avg
31°C
Waves today
0.1 m
How's the water?
very warm
16-day sea temperature forecast:
5.09 31°C6.09 31°C7.09 31°C8.09 31°C9.09 31°C10.09 31°C11.09 31°C12.09 31°C13.09 31°C
Average sea temperature through the year:
Jan 29°CFeb 28°CMar 28°CApr 29°CMay 30°CJun 30°CJul 31°CAug 31°CSep 31°COct 31°CNov 30°CDec 29°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Saint-Marc weather through the year

Saint-Marc - annual climate

Warmest, driest months on average: January, February, March, April.

Upcoming public holidays in Haiti: Dessalines Day — 17 October · All Saints Day — 1 November · All Souls' Day — 2 November.

Nearby and related places

LéogâneCarrefourPort-au-PrinceCap-HaïtienJacmelJérémie

FAQ - Saint-Marc weather

What is the weather like in Saint-Marc today?
Today it is about 30° during the day and 29° at night, clear sky.
How far ahead can I check the forecast for Saint-Marc?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.