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 month of April sees the highest average temperatures, reaching 32.9°C (91.2°F) at the peak and 22°C (71.6°F) at the low.Heat index
In April, the heat index is computed to be a blazing hot 46°C (114.8°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. 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 especially crucial for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
In Rattota, the average relative humidity in April is 76%.Rainfall
In Rattota, during April, the rain falls for 24.7 days and regularly aggregates up to 120mm (4.72") of precipitation. Throughout the year, in Rattota, Sri Lanka, there are 217.7 rainfall days, and 1165mm (45.87") of precipitation is accumulated.Daylight
In April, the average length of the day in Rattota, Sri Lanka, 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 05:52 and sunset at 18:16 +0530.
Sunshine
The average sunshine in April is 9.8h.UV index
March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 7 in April translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the warmest month in Rattota?
How hot is it in Rattota in April?
What is the average humidity in April in Rattota?
How many days does it rain in April in Rattota?
How many hours of daylight does Rattota have in April?
What time are sunrise and sunset in April in Rattota?
How many hours of sunshine does Rattota have in April?
What is the month with the highest UV index in Rattota?
How high is the UV index in April in Rattota?
Average temperature in April
Rattota, Sri Lanka
- Average high temperature in April: 32.9°C
The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (28.6°C).
- Average low temperature in April: 22°C
The month with the highest average low temperature is May (23°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).
Average pressure in April
Rattota, Sri Lanka
- Average pressure in April: 1009.5mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is June (1007.9mbar).
Average wind speed in April
Rattota, Sri Lanka
- Average wind speed in April: 5.6km/h
The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity in April
Rattota, Sri Lanka
- Average humidity in April: 76%
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are March and September (72%).
Average rainfall in April
Rattota, Sri Lanka
- Average rainfall in April: 120mm
The wettest month (with the highest rainfall) is October (267mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days in April
Rattota, Sri Lanka
- Average rainfall days in April: 24.7 days
The month with the highest number of rainy days is April (24.7 days).
The month with the least rainy days is February (11.8 days).
Average daylight in April /
Average sunshine in April
Rattota, Sri Lanka
- Average daylight in April: 12h and 2min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in April: 9h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in April
Rattota, Sri Lanka
- Average sunshine days in April: 4 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is April (4 days).
Average UV index in April
Rattota, Sri Lanka
- Average UV index in April: 7
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in April
Rattota, Sri Lanka
- Average cloud cover in April: 31
The months with the most cloud cover are November and December (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 24).
Average visibility in April
Rattota, Sri Lanka
- Average visibility in April: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
Rattota, Sri Lanka
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