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

August's advent notes a subtle adjustment in average high-temperature to a still hot 32.3°C (90.1°F) from July. Kalmunai records a consistent low-temperature of 25.8°C (78.4°F) during August nights.

Heat index

The heat index for August is computed to be a scorching 41°C (105.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Note that heat index values are valued for light wind and location in the shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

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

Rainfall

In Kalmunai, in August, it is raining for 20.6 days, with typically 55mm (2.17") of accumulated precipitation. In Kalmunai, during the entire year, the rain falls for 237.8 days and collects up to 1259mm (49.57") of precipitation.

Sea temperature

In Kalmunai, the average seawater temperature in August is 28.3°C (82.9°F).
Note: In water activities such as swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed highly pleasurable for extended periods without any unease.

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

The months with the highest UV index are January through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 7 in August interprets into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Beware! Reflections from sand and water can intensify the Sun's UV radiation.