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
The temperatures reach their highest averages in April, with highs of 31.4°C (88.5°F) and lows of 27°C (80.6°F).Heat index
The heat index value for April is estimated at a scorching 41°C (105.8°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. 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 highly critical for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
The average relative humidity in April is 76%.Rainfall
In Tanduvan, in April, during 15.3 rainfall days, 48mm (1.89") of precipitation is typically accumulated. In Tanduvan, during the entire year, the rain falls for 181.2 days and collects up to 849mm (33.43") of precipitation.Daylight
In April, the average length of the day is 12h and 20min.On the first day of April, sunrise is at 06:04 and sunset at 18:17. On the last day of the month, sunrise is at 05:51 and sunset at 18:17 +0530.
Sunshine
In Tanduvan, Sri Lanka, the average sunshine in April is 10h.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 value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In April, the maximum UV index of 7 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
Is it hot during 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?
What time are sunrise and sunset in April?
How many hours of sunshine does Tanduvan have in April?
What is the month with the highest UV index?
What is the UV index intensity in April?
Average temperature in April
Tanduvan, Sri Lanka
- Average high temperature in April: 31.4°C
The warmest month (with the highest average high temperature) is April (31.4°C).
The month with the lowest average high temperature is January (28.4°C).
- Average low temperature in April: 27°C
The month with the highest average low temperature is May (28.1°C).
The coldest month (with the lowest average low temperature) is February (23.9°C).
Average pressure in April
Tanduvan, Sri Lanka
- Average pressure in April: 1008.9mbar
The month with the highest atmospheric pressure is January (1012.2mbar).
The month with the lowest atmospheric pressure is June (1006.5mbar).
Average wind speed in April
Tanduvan, Sri Lanka
- Average wind speed in April: 15.4km/h
The windiest month (with the highest average wind speed) is June (32.4km/h).
The calmest month (with the lowest average wind speed) is April (15.4km/h).
Average humidity in April
Tanduvan, Sri Lanka
- Average humidity in April: 76%
The months with the highest relative humidity are November and December (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in April
Tanduvan, Sri Lanka
- Average rainfall in April: 48mm
The wettest month (with the highest rainfall) is November (207mm).
The driest month (with the least rainfall) is June (28mm).
Average rainfall days in April
Tanduvan, Sri Lanka
- Average rainfall days in April: 15.3 days
The months with the highest number of rainy days are October and November (23.8 days).
The month with the least rainy days is February (9.1 days).
Average daylight in April /
Average sunshine in April
Tanduvan, 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 36min).
- Average sunshine in April: 10h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are November and December (Average sunshine: 5h and 42min).
Average sunshine days in April
Tanduvan, Sri Lanka
- Average sunshine days in April: 10.2 days
The month with the most sunshine days is March (19 days).
The month with the least sunshine days is November (4.4 days).
Average UV index in April
Tanduvan, 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
Tanduvan, Sri Lanka
- Average cloud cover in April: 26
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is March (Cloud cover 18).
Average visibility in April
Tanduvan, Sri Lanka
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
