April weather forecast
Chunnakam, Sri Lanka

April in Chunnakam, Sri Lanka, is a tropical spring month, with an average temperature fluctuating between 30.4°C (86.7°F) and 28.1°C (82.6°F).

Temperature

The unfolding of April shows an average high-temperature of a tropical 30.4°C (86.7°F), indicating a slight variance from March's 29°C (84.2°F). Chunnakam's April nights witness minimal differential from the daytime temperatures, with averages of 28.1°C (82.6°F).

Heat index

April's heat index is estimated at a torrid 38°C (100.4°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Chunnakam, the average relative humidity in April is 76%.

Rainfall

In Chunnakam, during April, the rain falls for 9.2 days and regularly aggregates up to 29mm (1.14") of precipitation. Throughout the year, there are 189.6 rainfall days, and 1106mm (43.54") of precipitation is accumulated.

Daylight

In Chunnakam, the average length of the day in April is 12h and 21min.
On the first day of April, sunrise is at 06:06 and sunset at 18:20. On the last day of the month, sunrise is at 05:53 and sunset at 18:21 +0530.

Sunshine

In April, the average sunshine is 10.6h.

UV index

The months with the highest UV index are January through September and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 7 in April translates into the following instructions:
Deflect overexposure. Sun protection is a necessity. 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.