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
The highest temperatures are recorded in April, with averages reaching a high of 32.9°C (91.2°F) and a low of 22°C (71.6°F).Heat index
For April, the heat index is estimated at a blazing hot 46°C (114.8°F). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In April, the average relative humidity 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 the month, sunrise is at 06:06 and sunset at 18:18. On the last day of April, in Dematagahapelessa, 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. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: In April, a daily UV index of 7 turns into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What month is the hottest in Dematagahapelessa?
How hot is it in Dematagahapelessa in April?
What is the average humidity in April in Dematagahapelessa?
How much does it rain in Dematagahapelessa in April?
How many hours of daylight does Dematagahapelessa have in April?
When are sunrise and sunset in April in Dematagahapelessa?
How many hours of sunshine does Dematagahapelessa have in April?
When is the highest UV index in Dematagahapelessa?
How high is the UV index in April in Dematagahapelessa?
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).
Dematagahapelessa, Sri Lanka
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