April weather forecast
Galle, Sri Lanka

April sees more rain showers in Galle than in the preceding months. The city is now fully enveloped in its tropical character, defined by frequent showers and continuous humidity. Despite torrential downpours, locals and tourists alike find the city's climate bearable, thanks to the lingering sea breezes, which lessen the perceived temperature. Residents of Galle can anticipate an average temperature high of 30.3°C (86.5°F) in April. Sea temperatures are at their warmest, making coastal activities preferable.

Temperature

Galle experiences the peak of its temperatures in March and April, when the average high-temperatures rise to 30.3°C (86.5°F).

Heat index

For April, the heat index is evaluated at a fiery hot 38°C (100.4°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Galle, the average relative humidity in April is 78%.

Rainfall

In April, the rain falls for 26.2 days. Throughout April, 134mm (5.28") of precipitation is accumulated. In Galle, during the entire year, the rain falls for 286.9 days and collects up to 1974mm (77.72") of precipitation.

Sea temperature

With an average sea temperature of 29.6°C (85.3°F), April is the month with the warmest seawater.
Note: Water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are warm and delightful, ensuring comfort during water activities over extended periods.

Daylight

In April, the average length of the day in Galle is 12h and 16min.
On the first day of April in Galle, sunrise is at 06:07 and sunset at 18:18. On the last day of the month, sunrise is at 05:56 and sunset at 18:16 +0530.

Sunshine

April has the most sunshine of the year, with an average of 9.3h of sunshine.

UV index

January through April, June through August, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 7 in April transforms into this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take caution! The UV rays from the Sun gain strength from sand and water reflections.