April weather forecast
Rambukkana, Sri Lanka

April, the same as March, in Rambukkana, Sri Lanka, is a hot spring month, with temperature in the range of an average low of 20.8°C (69.4°F) and an average high of 31.2°C (88.2°F).

Temperature

The average high-temperature during April registers at a still hot 31.2°C (88.2°F), closely corresponding to the preceding month. Rambukkana records an average nighttime low-temperature of 20.8°C (69.4°F) throughout April.

Heat index

The heat index value for April is computed to be a blistering 41°C (105.8°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in April is 79%.

Rainfall

In April, the rain falls for 27 days. Throughout April, 152mm (5.98") of precipitation is accumulated. In Rambukkana, during the entire year, the rain falls for 278.4 days and collects up to 1466mm (57.72") of precipitation.

Daylight

In April, the average length of the day in Rambukkana is 12h and 17min.
On the first day of the month, sunrise is at 06:06 and sunset at 18:18. On the last day of April, in Rambukkana, Sri Lanka, sunrise is at 05:54 and sunset at 18:17 +0530.

Sunshine

In Rambukkana, the average sunshine in April is 9.4h.

UV index

January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Rambukkana. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 6 in April transforms into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.