April weather forecast
Raddolugama, Sri Lanka

April, like March, is another hot spring month in Raddolugama, Sri Lanka, with an average temperature varying between 32°C (89.6°F) and 26°C (78.8°F).

Temperature

Raddolugama greets April with an average high-temperature of a still hot 32°C (89.6°F), marking a slight deviation from the preceding month. An average low-temperature of 26°C (78.8°F) is recorded during the nights in April in Raddolugama.

Heat index

April's heat index is computed to be a blisteringly hot 43°C (109.4°F). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.
Be advised, the heat index considers values for conditions in shade and with a light breeze. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

The average relative humidity in April is 77%.

Rainfall

In Raddolugama, Sri Lanka, during April, the rain falls for 23.4 days and regularly aggregates up to 112mm (4.41") of precipitation. Throughout the year, there are 265.4 rainfall days, and 1744mm (68.66") of precipitation is accumulated.

Daylight

In Raddolugama, the average length of the day in April is 12h and 17min.
On the first day of the month, sunrise is at 06:08 and sunset at 18:20. On the last day of April, sunrise is at 05:56 and sunset at 18:18 +0530.

Sunshine

The months with the most sunshine are January through April, with an average of 9.2h of sunshine.

UV index

The months with the highest UV index are January through April, July, September, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In April, the maximum UV index of 7 suggests these recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.