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
Dematagahapelessa's warmest weather arrives in April, when temperatures average a high of 32.9°C (91.2°F) and a low of 22°C (71.6°F).Heat index
For most parts of April, the heat index is calculated to be a life-threatening hot 46°C (114.8°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.Heat index determinations are made taking into account the shade and light air movements. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
In Dematagahapelessa, the average relative humidity in April is 76%.Rainfall
In Dematagahapelessa, in April, during 24.7 rainfall days, 120mm (4.72") of precipitation is typically accumulated. Throughout the year, there are 217.7 rainfall days, and 1165mm (45.87") of precipitation is accumulated.Daylight
The average length of the day in April is 12h and 17min.On the first day of April in Dematagahapelessa, sunrise is at 06:06 and sunset at 18:18. On the last day of the month, sunrise is at 05:54 and sunset at 18:17 +0530.
Sunshine
In Dematagahapelessa, the average sunshine in April is 9.8h.UV index
March through September, with an average maximum UV index of 7, are months with the highest UV index in Dematagahapelessa. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In April, the UV index of 7 transforms into the following advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full 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 month is the hottest?
How hot is it 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?
What is the month with the highest UV index?
How high is the UV index in April?
Average temperature in April
Dematagahapelessa, Sri Lanka
- Average high temperature in April: 32.9°C
The warmest month (with the highest average high temperature) is April (32.9°C).
The month with the lowest average high temperature is December (28.6°C).
- Average low temperature in April: 22°C
The month with the highest average low temperature is May (23°C).
The coldest month (with the lowest average low temperature) is February (18.9°C).
Average pressure in April
Dematagahapelessa, Sri Lanka
- Average pressure in April: 1009.5mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is June (1007.9mbar).
Average wind speed in April
Dematagahapelessa, Sri Lanka
- Average wind speed in April: 5.6km/h
The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is April (5.6km/h).
Average humidity in April
Dematagahapelessa, Sri Lanka
- Average humidity in April: 76%
The month with the highest relative humidity is December (83%).
The months with the lowest relative humidity are March and September (72%).
Average rainfall in April
Dematagahapelessa, Sri Lanka
- Average rainfall in April: 120mm
The wettest month (with the highest rainfall) is October (267mm).
The driest month (with the least rainfall) is June (29mm).
Average rainfall days in April
Dematagahapelessa, Sri Lanka
- Average rainfall days in April: 24.7 days
The month with the highest number of rainy days is April (24.7 days).
The month with the least rainy days is February (11.8 days).
Average daylight in April /
Average sunshine in April
Dematagahapelessa, 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: 9h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in April
Dematagahapelessa, Sri Lanka
- Average sunshine days in April: 4 days
The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is April (4 days).
Average UV index in April
Dematagahapelessa, Sri Lanka
- Average UV index in April: 7
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in April
Dematagahapelessa, Sri Lanka
- Average cloud cover in April: 31
The months with the most cloud cover are November and December (Cloud cover 46).
The month with the least cloud cover is March (Cloud cover 24).
Average visibility in April
Dematagahapelessa, Sri Lanka
- Average visibility in April: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
