July weather forecastGreffin, Haiti

Weather in July

July, like June, is a hot summer month in Greffin, Haiti, with temperature in the range of an average low of 21.1°C (70°F) and an average high of 30.8°C (87.4°F).

Temperature

July's average high-temperature is a still hot 30.8°C (87.4°F), maintaining a close comparison with June's 30.3°C (86.5°F). In the month of July, the temperature in Greffin, Haiti, generally rests at an average low of 21.1°C (70°F).

Heat index

The heat index value for July is evaluated at a fiery hot 38°C (100.4°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are largely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In July, the average relative humidity in Greffin, Haiti, is 74%.

Rainfall

In Greffin, in July, during 20.3 rainfall days, 89mm (3.5") of precipitation is typically accumulated. Throughout the year, in Greffin, there are 228 rainfall days, and 913mm (35.94") of precipitation is accumulated.

Daylight

In July, the average length of the day is 13h and 7min.
On the first day of July, sunrise is at 06:16 and sunset at 19:29. On the last day of the month, sunrise is at 06:26 and sunset at 19:24 EDT.

Sunshine

July has the most sunshine of the year, with an average of 11.3h of sunshine.

UV index

The months with the lowest UV index in Greffin are January through May, July through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.