April weather forecast
Udakanda, Sri Lanka

April, the same as March, in Udakanda, Sri Lanka, is another tropical spring month, with temperature in the range of an average high of 30°C (86°F) and an average low of 21.1°C (70°F).

Temperature

Udakanda observes a minor difference in average high-temperatures between March's 31.1°C (88°F) and April's 30°C (86°F). During the month of April, Udakanda experiences a steady low-temperature average of 21.1°C (70°F).

Heat index

During April, the heat index is estimated at a torrid 39°C (102.2°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In Udakanda, Sri Lanka, the average relative humidity in April is 86%.

Rainfall

In Udakanda, during April, the rain falls for 29.4 days and regularly aggregates up to 248mm (9.76") of precipitation. In Udakanda, during the entire year, the rain falls for 317.7 days and collects up to 2467mm (97.13") of precipitation.

Daylight

In Udakanda, the average length of the day in April is 12h and 16min.
On the first day of the month, sunrise is at 06:05 and sunset at 18:16. On the last day of April, in Udakanda, sunrise is at 05:53 and sunset at 18:15 +0530.

Sunshine

The month with the most sunshine is April, with an average of 8.4h of sunshine.

UV index

January through August, November and December, with an average maximum UV index of 6, are months with the highest UV index in Udakanda. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in April translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.