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
Temperature readings reach their annual highs in April, averaging 34.9°C (94.8°F) and a minimum average of 23.5°C (74.3°F).Heat index
April's heat index is evaluated at a life-threatening hot 52°C (125.6°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.Observations indicate that the heat index values are for shady locations with light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
In Welikanda, the average relative humidity in April is 73%.Rainfall
In Welikanda, in April, during 23.6 rainfall days, 103mm (4.06") of precipitation is typically accumulated. Throughout the year, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.Daylight
In April, the average length of the day in Welikanda, Sri Lanka, is 12h and 18min.On the first day of April, sunrise is at 06:02 and sunset at 18:14. On the last day of the month, sunrise is at 05:50 and sunset at 18:14 +0530.
Sunshine
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 of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 7 in April transforms into this advice:
Fend off overexposure. Sun protection is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
How hot does it get in Welikanda in April?
What is the average humidity in April?
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 many hours of sunshine does Welikanda have in April?
When is the highest UV index?
What is the UV index reading 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).
Welikanda, Sri Lanka
Weather forecast for your location
2. Allow the app to use your location