July weather forecast and climate
Saint-Marc, Haiti

Weather in July

July, like June, is another hot summer month in Saint-Marc, Haiti, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 23.5°C (74.3°F).

Temperature

The warmest month is July, with an average high-temperature of 30.7°C (87.3°F) and an average low-temperature of 23.5°C (74.3°F).

Heat index

In July, the average heat index is appraised at a sweltering 38.9°C (102°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, metabolic differences, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Saint-Marc, the average relative humidity is 77%.

Rainfall

In Saint-Marc, in July, it is raining for 22.9 days, with typically 88mm (3.46") of accumulated precipitation. Throughout the year, in Saint-Marc, there are 219.6 rainfall days, and 736mm (28.98") of precipitation is accumulated.

Sea temperature

In July, the average sea temperature is 29.2°C (84.6°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Saint-Marc, the average length of the day is 13.1h.

Sunshine

July and August, with an average of 11.3h of sunshine, are months with the most sunshine.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index in Saint-Marc. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the warmest month in Saint-Marc?

July is the warmest month, with an average high-temperature of 30.7°C (87.3°F) and an average low-temperature of 23.5°C (74.3°F).

What is the temperature in July in Saint-Marc?

The average high-temperature, in July, in Saint-Marc, Haiti, is 30.7°C (87.3°F), while the average low-temperature is 23.5°C (74.3°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is appraised at 38.9°C (102°F).

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

In July, the average relative humidity is 77%.

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

In July, in Saint-Marc, Haiti, the rain falls for 22.9 days. Throughout July, 88mm (3.46") of precipitation is accumulated.

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

In Saint-Marc, Haiti, in July, the average water temperature is 29.2°C (84.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) 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 July?

The average length of the day in July in Saint-Marc is 13.1h.

What is the month with the most sunshine in Saint-Marc?

Months with the most sunshine in Saint-Marc are July and August, with an average of 11.3h of sunshine.

How many hours of sunshine does Saint-Marc have in July?

In Saint-Marc, the average sunshine in July is 11.3h.

What are the months with the highest UV index in Saint-Marc?

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

What is the UV index intensity in July in Saint-Marc?

In July, the average daily maximum UV index in Saint-Marc is 7. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to the Sun's UV rays.

Average temperature in July
Saint-Marc, Haiti

Average temperature in July - Saint-Marc, Haiti
  • Average high temperature in July: 30.7°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 July: 23.5°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 July
Saint-Marc, Haiti

Average pressure in July - Saint-Marc, Haiti
  • Average pressure in July: 1015.6mbar

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 July
Saint-Marc, Haiti

Average wind speed in July - Saint-Marc, Haiti
  • Average wind speed in July: 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 July
Saint-Marc, Haiti

Average humidity in July - Saint-Marc, Haiti
  • Average humidity in July: 77%

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

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Average rainfall in July
Saint-Marc, Haiti

Average rainfall in July - Saint-Marc, Haiti
  • Average rainfall in July: 88mm

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 July
Saint-Marc, Haiti

Average rainfall days in July - Saint-Marc, Haiti
  • Average rainfall days in July: 22.9 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 July
Saint-Marc, Haiti

Average sea temperature in July - Saint-Marc, Haiti
  • Average sea temperature in July: 29.2°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 July /
Average sunshine in July
Saint-Marc, Haiti

Average daylight in July / Average sunshine in July - Saint-Marc, Haiti
  • Average daylight in July: 13.1h

The month with the longest days is June (Average daylight: 13.3h).
The month with the shortest days is December (Average daylight: 11h).

  • Average sunshine in July: 11.3h

Months with the most sunshine are July and August (Average sunshine: 11.3h).
Months with the least sunshine are January and February (Average sunshine: 7.2).

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Average sunshine days in July
Saint-Marc, Haiti

Average sunshine days in July - Saint-Marc, Haiti
  • Average sunshine days in July: 5.4 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 July
Saint-Marc, Haiti

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

Months with the highest UV index are April, May, June, July, August and September (UV index 7).
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 July
Saint-Marc, Haiti

Average cloud cover in July - Saint-Marc, Haiti
  • Average cloud cover in July: 22

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 July
Saint-Marc, Haiti

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

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

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