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 welcomes an average high-temperature of a hot 30.4°C (86.7°F), not much different from the preceding month. In Uduthurai, nights during April observe an average temperature decrease to a moderately hot 28.1°C (82.6°F).Heat index
April's mean heat index is appraised at a fiery hot 38°C (100.4°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.It is emphasized that the heat index's values are meant for shaded zones with mild winds. 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 'felt air temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
In Uduthurai, the average relative humidity in April is 76%.Rainfall
In Uduthurai, during April, the rain falls for 9.2 days and regularly aggregates up to 29mm (1.14") of precipitation. In Uduthurai, during the entire year, the rain falls for 189.6 days and collects up to 1106mm (43.54") of precipitation.Daylight
The average length of the day in April is 12h and 20min.On the first day of the month, sunrise is at 06:05 and sunset at 18:18. On the last day of April, sunrise is at 05:51 and sunset at 18:19 +0530.
Sunshine
In April, the average sunshine is 10.6h.UV index
January through September and December, 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 radiation for average individuals.Note: A daily high UV index of 7 in April leads to these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is 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?
When is the sunrise / sunset in April?
How long on average sun shines in April in Uduthurai?
What is the month with the highest UV index?
What is the UV index intensity in April?
Average temperature in April
Uduthurai, Sri Lanka
- Average high temperature in April: 30.4°C
The warmest month (with the highest average high temperature) is May (30.7°C).
The month with the lowest average high temperature is January (26.8°C).
- Average low temperature in April: 28.1°C
The month with the highest average low temperature is May (29°C).
The coldest month (with the lowest average low temperature) is January (25.5°C).
Average pressure in April
Uduthurai, Sri Lanka
- Average pressure in April: 1008.8mbar
The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.8mbar).
Average wind speed in April
Uduthurai, Sri Lanka
- Average wind speed in April: 16.3km/h
The windiest month (with the highest average wind speed) is June (32.9km/h).
The calmest month (with the lowest average wind speed) is April (16.3km/h).
Average humidity in April
Uduthurai, Sri Lanka
- Average humidity in April: 76%
The months with the highest relative humidity are May and September (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in April
Uduthurai, Sri Lanka
- Average rainfall in April: 29mm
The wettest months (with the highest rainfall) are October and November (257mm).
The driest month (with the least rainfall) is March (18mm).
Average rainfall days in April
Uduthurai, Sri Lanka
- Average rainfall days in April: 9.2 days
The month with the highest number of rainy days is October (25.1 days).
The months with the least rainy days are February and March (7.6 days).
Average daylight in April /
Average sunshine in April
Uduthurai, Sri Lanka
- Average daylight in April: 12h and 2min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in April: 10h and 4min
The months with the most sunshine are May and June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in April
Uduthurai, Sri Lanka
- Average sunshine days in April: 17.6 days
The month with the most sunshine days is March (21.2 days).
The month with the least sunshine days is November (3.8 days).
Average UV index in April
Uduthurai, 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 and December (UV index 7).
The months with the lowest UV index are October and November (UV index 6).
Average cloud cover in April
Uduthurai, Sri Lanka
- Average cloud cover in April: 19
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 16).
Average visibility in April
Uduthurai, Sri Lanka
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
