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
With average high temperatures of 31.1°C (88°F) and lows of 26°C (78.8°F), April is the warmest month.Heat index
April's average heat index is computed to be a scorching 40°C (104°F). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In Nonagama, the average relative humidity in April is 77%.Rainfall
In Nonagama, in April, it is raining for 22.8 days, with typically 109mm (4.29") of accumulated precipitation. In Nonagama, during the entire year, the rain falls for 192.9 days and collects up to 942mm (37.09") of precipitation.Daylight
In April, the average length of the day is 12h and 16min.On the first day of the month, sunrise is at 06:04 and sunset at 18:15. On the last day of April, sunrise is at 05:53 and sunset at 18:13 +0530.
Sunshine
The average sunshine in April is 10.2h.UV index
The months with the highest UV index are January through September, November and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 7 in April translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest?
How hot does it get in April?
What is the average humidity in April in Nonagama?
How much does it rain in April?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
When is the highest UV index?
How high is the UV index in April?
Average temperature in April
Nonagama, Sri Lanka
- Average high temperature in April: 31.1°C
The warmest month (with the highest average high temperature) is April (31.1°C).
The month with the lowest average high temperature is December (29°C).
- Average low temperature in April: 26°C
The month with the highest average low temperature is May (26.7°C).
The coldest month (with the lowest average low temperature) is January (23.9°C).
Average pressure in April
Nonagama, Sri Lanka
- Average pressure in April: 1009.8mbar
The month with the highest atmospheric pressure is January (1011.5mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed in April
Nonagama, Sri Lanka
- Average wind speed in April: 12km/h
The windiest month (with the highest average wind speed) is June (26.4km/h).
The calmest month (with the lowest average wind speed) is November (11.7km/h).
Average humidity in April
Nonagama, Sri Lanka
- Average humidity in April: 77%
The months with the highest relative humidity are November and December (79%).
The month with the lowest relative humidity is July (74%).
Average rainfall in April
Nonagama, Sri Lanka
- Average rainfall in April: 109mm
The wettest month (with the highest rainfall) is November (182mm).
The driest month (with the least rainfall) is July (16mm).
Average rainfall days in April
Nonagama, Sri Lanka
- Average rainfall days in April: 22.8 days
The month with the highest number of rainy days is November (25.3 days).
The month with the least rainy days is July (10.6 days).
Average daylight in April /
Average sunshine in April
Nonagama, 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 48min).
- Average sunshine in April: 10h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in April
Nonagama, Sri Lanka
- Average sunshine days in April: 4.7 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is November (3.6 days).
Average UV index in April
Nonagama, Sri Lanka
- Average UV index in April: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 7).
The month with the lowest UV index is October (UV index 6).
Average cloud cover in April
Nonagama, Sri Lanka
- Average cloud cover in April: 29
The month with the most cloud cover is November (Cloud cover 40).
The month with the least cloud cover is March (Cloud cover 21).
Average visibility in April
Nonagama, Sri Lanka
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
