Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The transition from March to April sees average high-temperatures adjusting to a still tropical 31.2°C (88.2°F), from a not significantly different 31.5°C (88.7°F). During April, Watapuluwa's temperature averages to a pleasant 20.8°C (69.4°F) at night.Heat index
The heat index for April is appraised at a scorching 41°C (105.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The average relative humidity in April in Watapuluwa is 79%.Rainfall
In Watapuluwa, during April, the rain falls for 27 days and regularly aggregates up to 152mm (5.98") of precipitation. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.Daylight
The average length of the day in April is 12h and 17min.On the first day of the month, sunrise is at 06:05 and sunset at 18:17. On the last day of April, sunrise is at 05:53 and sunset at 18:16 +0530.
Sunshine
In Watapuluwa, Sri Lanka, 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. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In April, a daily UV index of 6 turns into the following recommendations:
Fend off overexposure. Sun protection is vital. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
How hot is April in Watapuluwa?
What is the average humidity in April in Watapuluwa?
How many days does it rain in April in Watapuluwa?
How many hours of daylight does Watapuluwa have in April?
When are sunrise and sunset in April in Watapuluwa?
How many hours of sunshine does Watapuluwa have in April?
When is the highest UV index in Watapuluwa?
How high is the UV index in April in Watapuluwa?
Average temperature in April
Watapuluwa, Sri Lanka
- Average high temperature in April: 31.2°C
The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).
- Average low temperature in April: 20.8°C
The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).
Average pressure in April
Watapuluwa, Sri Lanka
- Average pressure in April: 1009.6mbar
The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).
Average wind speed in April
Watapuluwa, Sri Lanka
- Average wind speed in April: 4.7km/h
The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).
Average humidity in April
Watapuluwa, Sri Lanka
- Average humidity in April: 79%
The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).
Average rainfall in April
Watapuluwa, Sri Lanka
- Average rainfall in April: 152mm
The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in April
Watapuluwa, Sri Lanka
- Average rainfall days in April: 27 days
The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).
Average daylight in April /
Average sunshine in April
Watapuluwa, Sri Lanka
- Average daylight in April: 12h and 2min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in April: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in April
Watapuluwa, Sri Lanka
- Average sunshine days in April: 1.8 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).
Average UV index in April
Watapuluwa, Sri Lanka
- Average UV index in April: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).
Average cloud cover in April
Watapuluwa, Sri Lanka
- Average cloud cover in April: 35
The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).
Average visibility in April
Watapuluwa, Sri Lanka
- Average visibility in April: 8km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).
Watapuluwa, Sri Lanka
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