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, marked by an average high-temperature of 34.9°C (94.8°F) and a low-temperature of 23.5°C (74.3°F), is the warmest month.Heat index
April's average heat index is evaluated at a burning hot 52°C (125.6°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.Heat index data is primarily for areas with shade and subjected to light winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold great significance to 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.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In April, the average relative humidity is 73%.Rainfall
In April, the rain falls for 23.6 days. Throughout April, 103mm (4.06") of precipitation is accumulated. In Welikanda, during the entire year, the rain falls for 196.8 days and collects up to 943mm (37.13") of precipitation.Daylight
In Welikanda, the average length of the day in April is 12h and 18min.On the first day of the month, sunrise is at 06:02 and sunset at 18:14. On the last day of April, sunrise is at 05:50 and sunset at 18:14 +0530.
Sunshine
In Welikanda, the average sunshine in April is 10.1h.UV index
The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 7 in April transforms into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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 Welikanda 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?
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
Welikanda, Sri Lanka
- Average high temperature in April: 34.9°C
The warmest month (with the highest average high temperature) is April (34.9°C).
The months with the lowest average high temperature are January and December (29.3°C).
- Average low temperature in April: 23.5°C
The month with the highest average low temperature is June (24.8°C).
The coldest months (with the lowest average low temperature) are January and February (20°C).
Average pressure in April
Welikanda, Sri Lanka
- Average pressure in April: 1009.4mbar
The month with the highest atmospheric pressure is January (1012mbar).
The month with the lowest atmospheric pressure is June (1007.5mbar).
Average wind speed in April
Welikanda, Sri Lanka
- Average wind speed in April: 7.1km/h
The windiest month (with the highest average wind speed) is June (23.8km/h).
The calmest month (with the lowest average wind speed) is April (7.1km/h).
Average humidity in April
Welikanda, Sri Lanka
- Average humidity in April: 73%
The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are June, July, August and September (67%).
Average rainfall in April
Welikanda, Sri Lanka
- Average rainfall in April: 103mm
The wettest month (with the highest rainfall) is October (214mm).
The driest month (with the least rainfall) is June (15mm).
Average rainfall days in April
Welikanda, Sri Lanka
- Average rainfall days in April: 23.6 days
The month with the highest number of rainy days is November (24.1 days).
The month with the least rainy days is June (7.8 days).
Average daylight in April /
Average sunshine in April
Welikanda, 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: 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: 4h and 54min).
Average sunshine days in April
Welikanda, Sri Lanka
- Average sunshine days in April: 4.3 days
The month with the most sunshine days is July (16 days).
The month with the least sunshine days is November (4.2 days).
Average UV index in April
Welikanda, Sri Lanka
- Average UV index in April: 7
The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).
Average cloud cover in April
Welikanda, Sri Lanka
- Average cloud cover in April: 29
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in April
Welikanda, Sri Lanka
- Average visibility in April: 9km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January and December (7km).
