July weather forecast
Slave Island, Sri Lanka

July, like June, in Slave Island, Sri Lanka, is a moderately hot summer month, with an average temperature ranging between max 28.9°C (84°F) and min 25.3°C (77.5°F).

Temperature

The months of July and August are noted for their lowest temperatures, with an average high-temperature of 28.9°C (84°F).

Heat index

July's mean heat index is appraised at a torrid 35°C (95°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives an indication of how one might feel in terms of heat after considering humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

June through August, with an average relative humidity of 83%, are the most humid months in Slave Island.

Rainfall

In Slave Island, during July, the rain falls for 29.8 days and regularly aggregates up to 256mm (10.08") of precipitation. In Slave Island, during the entire year, the rain falls for 289.4 days and collects up to 2262mm (89.06") of precipitation.

Daylight

In Slave Island, the average length of the day in July is 12h and 29min.
On the first day of the month, sunrise is at 05:58 and sunset at 18:30. On the last day of July, in Slave Island, Sri Lanka, sunrise is at 06:04 and sunset at 18:29 +0530.

Sunshine

In July, the average sunshine in Slave Island is 7.6h.

UV index

The months with the highest UV index in Slave Island are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In July, a daily maximum UV index of 7 leads to the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.