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
March and April, when the average high-temperature reaches 31.8°C (89.2°F), are the warmest months.Heat index
For April, the heat index is evaluated at a blistering 42°C (107.6°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In April, the average relative humidity in Avissawella, Sri Lanka, is 77%.Rainfall
In Avissawella, in April, during 25.4 rainfall days, 137mm (5.39") of precipitation is typically accumulated. Throughout the year, in Avissawella, there are 289.4 rainfall days, and 2262mm (89.06") of precipitation is accumulated.Daylight
The average length of the day in April in Avissawella is 12h and 17min.On the first day of April in Avissawella, Sri Lanka, sunrise is at 06:07 and sunset at 18:18. On the last day of the month, sunrise is at 05:55 and sunset at 18:17 +0530.
Sunshine
In Avissawella, the average sunshine in April is 8.9h.UV index
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 7 during April translates into the following guidance:
Inhibit overexposure. Warding off sun damage is of utmost importance. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Avissawella?
How hot is April in Avissawella?
What is the average humidity in April in Avissawella?
How many days does it rain in April in Avissawella?
What is the average length of the day in April in Avissawella?
What time are sunrise and sunset in April in Avissawella?
How long on average sun shines in April in Avissawella?
When is the highest UV index in Avissawella?
What is the UV index reading in April in Avissawella?
Average temperature in April
Avissawella, Sri Lanka
- Average high temperature in April: 31.8°C
The warmest months (with the highest average high temperature) are March and April (31.8°C).
The months with the lowest average high temperature are July and August (28.9°C).
- Average low temperature in April: 25.8°C
The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is January (23.1°C).
Average pressure in April
Avissawella, Sri Lanka
- Average pressure in April: 1009.7mbar
The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).
Average wind speed in April
Avissawella, Sri Lanka
- Average wind speed in April: 8.6km/h
The windiest month (with the highest average wind speed) is June (15.1km/h).
The calmest month (with the lowest average wind speed) is March (8km/h).
Average humidity in April
Avissawella, Sri Lanka
- Average humidity in April: 77%
The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall in April
Avissawella, Sri Lanka
- Average rainfall in April: 137mm
The wettest month (with the highest rainfall) is June (341mm).
The driest month (with the least rainfall) is January (40mm).
Average rainfall days in April
Avissawella, Sri Lanka
- Average rainfall days in April: 25.4 days
The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is January (11.6 days).
Average daylight in April /
Average sunshine in April
Avissawella, 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 42min).
- Average sunshine in April: 8h and 5min
The month with the most sunshine is January (Average sunshine: 9h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in April
Avissawella, Sri Lanka
- Average sunshine days in April: 2.6 days
The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are June and August (0.3 days).
Average UV index in April
Avissawella, Sri Lanka
- Average UV index in April: 7
The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).
Average cloud cover in April
Avissawella, Sri Lanka
- Average cloud cover in April: 40
The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility in April
Avissawella, Sri Lanka
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).
