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
Sandilipay registers the highest average temperatures during the month of April, with peaks of 30.4°C (86.7°F) and lows of 28.1°C (82.6°F).Heat index
In April, the average heat index is evaluated at a fiery hot 38°C (100.4°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in 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 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
In April, the average relative humidity is 77%.Rainfall
In Sandilipay, during April, the rain falls for 7.5 days and regularly aggregates up to 20mm (0.79") of precipitation. In Sandilipay, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.Daylight
The average length of the day in April is 12h and 21min.On the first day of April, sunrise is at 06:07 and sunset at 18:20. On the last day of the month, sunrise is at 05:53 and sunset at 18:21 +0530.
Sunshine
In Sandilipay, the average sunshine in April is 10.5h.UV index
The months with the highest UV index are January through October and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 7 in April leads to these recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
How hot is it in April?
What is the average humidity in April?
How many days does it rain in April in Sandilipay?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What are the months with the highest UV index?
How high is the UV index in April in Sandilipay?
Average temperature in April
Sandilipay, Sri Lanka
- Average high temperature in April: 30.4°C
The warmest month (with the highest average high temperature) is April (30.4°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
Sandilipay, 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 (1005.9mbar).
Average wind speed in April
Sandilipay, Sri Lanka
- Average wind speed in April: 16.7km/h
The windiest month (with the highest average wind speed) is June (33.8km/h).
The calmest months (with the lowest average wind speed) are March and April (16.7km/h).
Average humidity in April
Sandilipay, Sri Lanka
- Average humidity in April: 77%
The months with the highest relative humidity are May, August and September (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in April
Sandilipay, Sri Lanka
- Average rainfall in April: 20mm
The wettest month (with the highest rainfall) is October (191mm).
The driest month (with the least rainfall) is March (13mm).
Average rainfall days in April
Sandilipay, Sri Lanka
- Average rainfall days in April: 7.5 days
The month with the highest number of rainy days is October (22.6 days).
The month with the least rainy days is March (5.8 days).
Average daylight in April /
Average sunshine in April
Sandilipay, 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 3min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in April
Sandilipay, Sri Lanka
- Average sunshine days in April: 22 days
The month with the most sunshine days is March (23.9 days).
The month with the least sunshine days is November (6.3 days).
Average UV index in April
Sandilipay, 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, October and December (UV index 7).
The month with the lowest UV index is November (UV index 6).
Average cloud cover in April
Sandilipay, 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
Sandilipay, Sri Lanka
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
