August weather forecast
Chilaw, Sri Lanka

The last month of the summer, August, is another warm month in Chilaw, Sri Lanka, with an average temperature fluctuating between 29.3°C (84.7°F) and 25.4°C (77.7°F).

Temperature

Chilaw experiences a minor change to a still moderately hot 29.3°C (84.7°F) in average high-temperature during August, closely reflecting July. Night temperatures during August in Chilaw experience a slight downturn, averaging a still warm 25.4°C (77.7°F).

Heat index

August's mean heat index is appraised at a sweltering 36°C (96.8°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

June through August, with an average relative humidity of 82%, are the most humid months.

Rainfall

In Chilaw, Sri Lanka, during August, the rain falls for 28.4 days and regularly aggregates up to 210mm (8.27") of precipitation. In Chilaw, during the entire year, the rain falls for 265.4 days and collects up to 1744mm (68.66") of precipitation.

Sea temperature

The month with the coldest seawater in Chilaw is August, with an average sea temperature of 27°C (80.6°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

In August, the average length of the day in Chilaw is 12h and 22min.
On the first day of August in Chilaw, sunrise is at 06:03 and sunset at 18:30. On the last day of the month, sunrise is at 06:03 and sunset at 18:18 +0530.

Sunshine

In Chilaw, the average sunshine in August is 7.5h.

UV index

The months with the lowest UV index are May, June, August and October, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In August, a regular UV index of 6 translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be on guard! The reflective nature of sand and water boosts UV exposure.