April weather forecast
Uppodai, Sri Lanka

April, like March, is another tropical spring month in Uppodai, Sri Lanka, with temperature in the range of an average high of 31.8°C (89.2°F) and an average low of 25.9°C (78.6°F).

Temperature

Shifting into April, Uppodai records an average high-temperature of a still tropical 31.8°C (89.2°F), presenting minor fluctuations compared to the previous month. April brings with it a nighttime average temperature of 25.9°C (78.6°F) in Uppodai.

Heat index

Throughout April, the heat index is estimated at a scorching 42°C (107.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In April, the average relative humidity is 75%.

Rainfall

In Uppodai, in April, it is raining for 19.1 days, with typically 57mm (2.24") of accumulated precipitation. Throughout the year, there are 237.8 rainfall days, and 1259mm (49.57") of precipitation is accumulated.

Daylight

In Uppodai, the average length of the day in April is 12h and 18min.
On the first day of April, sunrise is at 06:00 and sunset at 18:12. On the last day of the month, sunrise is at 05:48 and sunset at 18:12 +0530.

Sunshine

The average sunshine in April is 11.2h.

UV index

The months with the highest UV index in Uppodai are January through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 during April translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.