May weather forecast
Saint-Marc, Haiti

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Weather in May

Moving into May, Saint-Marc continues to warm up, experiencing an uptick in temperature. The daylight hours peak to their highest at 13 hours, allowing plenty of time to soak up the sun. Notably, May records the highest rainfall of the year, with a steep increase to 118mm compared to April's 50mm. This heavy rainfall makes May the wettest month, yet it does not overshadow the warm temperatures and lengthy daylight hours.

Temperature

The commencement of May in Saint-Marc records an average high-temperature of a still moderately hot 29.3°C, barely varying from April's 29.1°C. Throughout the nights in May, Saint-Marc experiences an average low-temperature of 22.5°C.

Heat index

The heat index value during May is calculated to be a torrid 35°C. Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Saint-Marc, Haiti, the average relative humidity in May is 76%.

Rainfall

The month with the most rainfall in Saint-Marc is May, when the rain falls for 25.3 days and typically aggregates up to 118mm of precipitation.

Sea temperature

In Saint-Marc, in May, the average water temperature is 28°C.
Note: In any water activity, temperatures between 25°C and 29°C are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In May, the average length of the day is 13h and 2min.
On the first day of May in Saint-Marc, sunrise is at 06:22 and sunset at 19:13. On the last day of the month, sunrise is at 06:12 and sunset at 19:24 EDT.

Sunshine

In Saint-Marc, the average sunshine in May is 10.6h.

UV index

The months with the highest UV index in Saint-Marc are April through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 7 in May leads to these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Beware! Reflecting off water and sand, UV rays are much stronger.
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FAQ

How hot is May in Saint-Marc?

The high-temperature, in May, in Saint-Marc, is 29.3°C, while the low-temperature averages to 22.5°C. In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 35°C.

What is the average humidity in May in Saint-Marc?

The average relative humidity in May in Saint-Marc is 76%.

What is the wettest month in Saint-Marc?

The month with the most rainfall in Saint-Marc, Haiti, is May, when the rain falls for 25.3 days and typically aggregates up to 118mm of precipitation.

How much does it rain in Saint-Marc in May?

In Saint-Marc, in May, during 25.3 rainfall days, 118mm of precipitation is typically accumulated.

What is the sea water temperature in May in Saint-Marc?

In May, the average sea temperature in Saint-Marc, Haiti, is 28°C. Water temperature between 25°C and 29°C is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Saint-Marc have in May?

The average day length in May in Saint-Marc is 13h and 2min.

What time are sunrise and sunset in May in Saint-Marc?

On the first day of May in Saint-Marc, Haiti, sunrise is at 06:22 and sunset at 19:13. On the last day of the month, sunrise is at 06:12 and sunset at 19:24 EDT.

How long on average sun shines in May in Saint-Marc?

In Saint-Marc, the average sunshine duration in May is 10.6h.

When is the highest UV index in Saint-Marc?

The months with the highest UV index are April through September, with an average maximum UV index of 7.

What is the UV index reading in May in Saint-Marc?

In Saint-Marc, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Saint-Marc, Haiti

Average temperature in May - Saint-Marc, Haiti
  • Average high temperature in May: 29.3°C

The warmest month (with the highest average high temperature) is July (30.7°C).
The month with the lowest average high temperature is January (27.3°C).

  • Average low temperature in May: 22.5°C

The month with the highest average low temperature is July (23.5°C).
The coldest month (with the lowest average low temperature) is January (20.1°C).

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Average pressure in May
Saint-Marc, Haiti

Average pressure in May - Saint-Marc, Haiti
  • Average pressure in May: 1014.7mbar

The month with the highest atmospheric pressure is January (1016.6mbar).
The month with the lowest atmospheric pressure is October (1012.5mbar).

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Average wind speed in May
Saint-Marc, Haiti

Average wind speed in May - Saint-Marc, Haiti
  • Average wind speed in May: 7.9km/h

The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is September (7km/h).

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Average humidity in May
Saint-Marc, Haiti

Average humidity in May - Saint-Marc, Haiti
  • Average humidity in May: 76%

The month with the highest relative humidity is November (81%).
The months with the lowest relative humidity are March and April (74%).

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Average rainfall in May
Saint-Marc, Haiti

Average rainfall in May - Saint-Marc, Haiti
  • Average rainfall in May: 118mm

The wettest month (with the highest rainfall) is May (118mm).
The driest months (with the least rainfall) are January and December (13mm).

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Average rainfall days in May
Saint-Marc, Haiti

Average rainfall days in May - Saint-Marc, Haiti
  • Average rainfall days in May: 25.3 days

The month with the highest number of rainy days is May (25.3 days).
The month with the least rainy days is December (8.5 days).

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Average sea temperature in May
Saint-Marc, Haiti

Average sea temperature in May - Saint-Marc, Haiti
  • Average sea temperature in May: 28°C

The best month for swimming (with the highest average sea temperature) is September (29.9°C).
The coldest month (with the lowest average sea temperature) is February (26.8°C).

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Average daylight in May /
Average sunshine in May
Saint-Marc, Haiti

Average daylight in May / Average sunshine in May - Saint-Marc, Haiti
  • Average daylight in May: 13h and 0min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in May: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 18min).
The months with the least sunshine are January and February (Average sunshine: 7h and 12min).

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Average sunshine days in May
Saint-Marc, Haiti

Average sunshine days in May - Saint-Marc, Haiti
  • Average sunshine days in May: 4 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is September (3.2 days).

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Average UV index in May
Saint-Marc, Haiti

Average UV index in May - Saint-Marc, Haiti
  • Average UV index in May: 7

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 6).

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Average cloud cover in May
Saint-Marc, Haiti

Average cloud cover in May - Saint-Marc, Haiti
  • Average cloud cover in May: 32

The month with the most cloud cover is May (Cloud cover 32).
The month with the least cloud cover is December (Cloud cover 18).

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Average visibility in May
Saint-Marc, Haiti

Average visibility in May - Saint-Marc, Haiti
  • Average visibility in May: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Saint-Marc, Haiti

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