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
April
Weather in April
Temperature
April, known for its average high temperature of 30.3°C (86.5°F) and an average low temperature of 26.5°C (79.7°F), is the warmest month.Heat index
April's mean heat index is calculated to be a fiery hot 38°C (100.4°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. 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 quite important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
The average relative humidity in April is 78%.Rainfall
In Hettigoda, during April, the rain falls for 25.8 days and regularly aggregates up to 119mm (4.69") of precipitation. In Hettigoda, during the entire year, the rain falls for 292.5 days and collects up to 1797mm (70.75") of precipitation.Daylight
In April, the average length of the day is 12h and 16min.On the first day of April, sunrise is at 06:08 and sunset at 18:19. On the last day of the month, sunrise is at 05:56 and sunset at 18:17 +0530.
Sunshine
April has the most sunshine of the year, with an average of 9.4h of sunshine.UV index
The months with the highest UV index are January through April, July, August, October through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In April, the UV index of 7 transforms into the following advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest?
How hot is it in April?
What is the average humidity in April?
How many days does it rain in April?
What is the average length of the day in April?
What time are sunrise and sunset in April?
What month has the most sunshine in Hettigoda?
How long on average sun shines in April?
When is the highest UV index?
What is the UV index intensity in April?
Average temperature in April
Hettigoda, Sri Lanka
- Average high temperature in April: 30.3°C
The warmest month (with the highest average high temperature) is April (30.3°C).
The month with the lowest average high temperature is September (28.5°C).
- Average low temperature in April: 26.5°C
The month with the highest average low temperature is May (27.1°C).
The coldest month (with the lowest average low temperature) is January (24.1°C).
Average pressure in April
Hettigoda, Sri Lanka
- Average pressure in April: 1009.9mbar
The month with the highest atmospheric pressure is January (1011.3mbar).
The month with the lowest atmospheric pressure is May (1009mbar).
Average wind speed in April
Hettigoda, Sri Lanka
- Average wind speed in April: 10.7km/h
The windiest month (with the highest average wind speed) is June (21.7km/h).
The calmest month (with the lowest average wind speed) is January (8.7km/h).
Average humidity in April
Hettigoda, Sri Lanka
- Average humidity in April: 78%
The months with the highest relative humidity are June and September (81%).
The months with the lowest relative humidity are January, February and March (77%).
Average rainfall in April
Hettigoda, Sri Lanka
- Average rainfall in April: 119mm
The wettest month (with the highest rainfall) is May (263mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in April
Hettigoda, Sri Lanka
- Average rainfall days in April: 25.8 days
The months with the highest number of rainy days are June and August (28.3 days).
The month with the least rainy days is February (15.4 days).
Average daylight in April /
Average sunshine in April
Hettigoda, 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 April (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).
Average sunshine days in April
Hettigoda, Sri Lanka
- Average sunshine days in April: 1.3 days
The month with the most sunshine days is January (12 days).
The month with the least sunshine days is June (0.3 days).
Average UV index in April
Hettigoda, Sri Lanka
- Average UV index in April: 7
The months with the highest UV index are January, February, March, April, July, August, October, November and December (UV index 7).
The months with the lowest UV index are May, June and September (UV index 6).
Average cloud cover in April
Hettigoda, Sri Lanka
- Average cloud cover in April: 36
The month with the most cloud cover is June (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 25).
Average visibility in April
Hettigoda, Sri Lanka
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, June, July and December (10km).
The months with the lowest visibility are May, August, September, October and November (9km).
