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
In Ariyalai, the average temperatures in April are the highest, with a peak at 30.4°C (86.7°F) and a low of 28.1°C (82.6°F).Heat index
The average heat index in April is computed to be a torrid 38°C (100.4°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Consider that heat index readings are for situations in the shade and light wind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In Ariyalai, the average relative humidity in April is 77%.Rainfall
In Ariyalai, in April, during 7.5 rainfall days, 20mm (0.79") of precipitation is typically accumulated. In Ariyalai, Sri Lanka, during the entire year, the rain falls for 148.6 days and collects up to 769mm (30.28") of precipitation.Daylight
The average length of the day in April is 12h and 20min.On the first day of April, sunrise is at 06:06 and sunset at 18:20. On the last day of the month, sunrise is at 05:52 and sunset at 18:20 +0530.
Sunshine
In Ariyalai, the average sunshine in April is 10.5h.UV index
January through October and December, with an average maximum UV index of 7, are months with the highest UV index in Ariyalai, Sri Lanka. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 7 in April translates into the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What part of the year is the hottest in Ariyalai?
How hot is April in Ariyalai?
What is the average humidity in April in Ariyalai?
How many days does it rain in April in Ariyalai?
What is the average length of the day in April in Ariyalai?
When are sunrise and sunset in April in Ariyalai?
How long on average sun shines in April in Ariyalai?
What are the months with the highest UV index in Ariyalai?
What is the UV index reading in April in Ariyalai?
Average temperature in April
Ariyalai, Sri Lanka
- Average high temperature in April: 30.4°C
The warmest month (with the highest average high temperature) is April (30.4°C).
The month with the lowest average high temperature is January (26.8°C).
- Average low temperature in April: 28.1°C
The month with the highest average low temperature is May (29°C).
The coldest month (with the lowest average low temperature) is January (25.5°C).
Average pressure in April
Ariyalai, Sri Lanka
- Average pressure in April: 1008.8mbar
The month with the highest atmospheric pressure is January (1012.5mbar).
The month with the lowest atmospheric pressure is June (1005.9mbar).
Average wind speed in April
Ariyalai, Sri Lanka
- Average wind speed in April: 16.7km/h
The windiest month (with the highest average wind speed) is June (33.8km/h).
The calmest months (with the lowest average wind speed) are March and April (16.7km/h).
Average humidity in April
Ariyalai, Sri Lanka
- Average humidity in April: 77%
The months with the highest relative humidity are May, August and September (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in April
Ariyalai, Sri Lanka
- Average rainfall in April: 20mm
The wettest month (with the highest rainfall) is October (191mm).
The driest month (with the least rainfall) is March (13mm).
Average rainfall days in April
Ariyalai, Sri Lanka
- Average rainfall days in April: 7.5 days
The month with the highest number of rainy days is October (22.6 days).
The month with the least rainy days is March (5.8 days).
Average daylight in April /
Average sunshine in April
Ariyalai, Sri Lanka
- Average daylight in April: 12h and 2min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in April: 10h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in April
Ariyalai, Sri Lanka
- Average sunshine days in April: 22 days
The month with the most sunshine days is March (23.9 days).
The month with the least sunshine days is November (6.3 days).
Average UV index in April
Ariyalai, 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
Ariyalai, Sri Lanka
- Average cloud cover in April: 19
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 16).
Average visibility in April
Ariyalai, Sri Lanka
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Ariyalai, Sri Lanka
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