August weather forecast
Kalmunai, Sri Lanka

The eight month sees a transition in weather patterns in Kalmunai. Marked by a decrease in temperature, August breaks away from the preceding summer months. Rainfall and humidity indicate a slight increase, hinting at the return of monsoon. The slight fluctuation in climate parameters introduces elements of unpredictability, making August a blend of summer heat and increased chances of rain.

Temperature

Kalmunai's August average high-temperature settles at a still hot 32.3°C (90.1°F), showing a near match with the preceding month. The average temperature during August nights dips to a moderately hot 25.8°C (78.4°F).

Heat index

The heat index value for August is estimated at an extremely hot 41°C (105.8°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
The heat index's values are generally associated with conditions in shade and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. 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 essentially critical for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In August, the average relative humidity in Kalmunai is 70%.

Rainfall

In Kalmunai, in August, it is raining for 20.6 days, with typically 55mm (2.17") of accumulated precipitation. Throughout the year, in Kalmunai, there are 237.8 rainfall days, and 1259mm (49.57") of precipitation is accumulated.

Sea temperature

In August, the average sea temperature in Kalmunai is 28.3°C (82.9°F).
Note: For swimming, diving, and enjoying other water activities, the range of 25°C (77°F) to 29°C (84.2°F) in water temperature is considered ideal, offering pleasure for extended periods without discomfort.

Daylight

In Kalmunai, Sri Lanka, the average length of the day in August is 12h and 22min.
On the first day of the month, sunrise is at 05:55 and sunset at 18:22. On the last day of August, sunrise is at 05:55 and sunset at 18:10 +0530.

Sunshine

The average sunshine in August is 11.7h.

UV index

January through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 7 in August translates into the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Alert! The Sun's UV rays are heightened by the reflection of sand and water.