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
March and April represent the warmest period, with an average high-temperature of 31.3°C (88.3°F).Heat index
The average heat index in April is appraised at a scorching 41°C (105.8°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In Walana, the average relative humidity in April is 78%.Rainfall
In April, the rain falls for 25.8 days. Throughout April, 127mm (5") of precipitation is accumulated. Throughout the year, there are 273.8 rainfall days, and 2059mm (81.06") of precipitation is accumulated.Daylight
In Walana, the average length of the day in April is 12h and 16min.On the first day of April in Walana, sunrise is at 06:08 and sunset at 18:19. On the last day of the month, sunrise is at 05:56 and sunset at 18:18 +0530.
Sunshine
The average sunshine in April in Walana, Sri Lanka, is 9h.UV index
January through April, July, September through December, with an average maximum UV index of 7, are months with the highest UV index in Walana. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 7 in April translates into these instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. 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. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the warmest month in Walana?
How hot is April in Walana?
What is the average humidity in April in Walana?
How much does it rain in Walana in April?
What is the average length of the day in April in Walana?
What time are sunrise and sunset in April in Walana?
How long on average sun shines in April in Walana?
What are the months with the highest UV index in Walana?
What is the UV index reading in April in Walana?
Average temperature in April
Walana, Sri Lanka
- Average high temperature in April: 31.3°C
The warmest months (with the highest average high temperature) are March and April (31.3°C).
The month with the lowest average high temperature is August (28.6°C).
- Average low temperature in April: 26°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 (23.4°C).
Average pressure in April
Walana, 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 (1008.7mbar).
Average wind speed in April
Walana, Sri Lanka
- Average wind speed in April: 8.7km/h
The windiest month (with the highest average wind speed) is June (15.9km/h).
The calmest month (with the lowest average wind speed) is March (7.9km/h).
Average humidity in April
Walana, Sri Lanka
- Average humidity in April: 78%
The months with the highest relative humidity are June, July and August (83%).
The months with the lowest relative humidity are January and February (75%).
Average rainfall in April
Walana, Sri Lanka
- Average rainfall in April: 127mm
The wettest month (with the highest rainfall) is June (350mm).
The driest month (with the least rainfall) is January (25mm).
Average rainfall days in April
Walana, Sri Lanka
- Average rainfall days in April: 25.8 days
The months with the highest number of rainy days are July and August (29.5 days).
The month with the least rainy days is January (8.9 days).
Average daylight in April /
Average sunshine in April
Walana, 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: 9h and 0min
The month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 48min).
Average sunshine days in April
Walana, Sri Lanka
- Average sunshine days in April: 2.3 days
The month with the most sunshine days is January (21 days).
The months with the least sunshine days are June and July (0.3 days).
Average UV index in April
Walana, Sri Lanka
- Average UV index in April: 7
The months with the highest UV index are January, February, March, April, July, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June and August (UV index 6).
Average cloud cover in April
Walana, Sri Lanka
- Average cloud cover in April: 40
The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility in April
Walana, Sri Lanka
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
Walana, Sri Lanka
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