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
April, characterized by an average high temperature of 30.4°C (86.7°F) and a low temperature of 28.1°C (82.6°F), is generally the warmest month.Heat index
For April, the heat index is evaluated at a sweltering 38°C (100.4°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful 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.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In April, the average relative humidity in Valayanmadam is 77%.Rainfall
In Valayanmadam, during April, the rain falls for 7.5 days and regularly aggregates up to 20mm (0.79") of precipitation. Throughout the year, there are 148.6 rainfall days, and 769mm (30.28") of precipitation is accumulated.Daylight
The average length of the day in April in Valayanmadam is 12h and 20min.On the first day of the month, sunrise is at 06:04 and sunset at 18:17. On the last day of April, in Valayanmadam, sunrise is at 05:50 and sunset at 18:17 +0530.
Sunshine
In April, the average sunshine in Valayanmadam is 10.5h.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 reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 7 in April converts into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the warmest month in Valayanmadam?
How hot is April in Valayanmadam?
What is the average humidity in April in Valayanmadam?
How many days does it rain in April in Valayanmadam?
How many hours of daylight does Valayanmadam have in April?
What time are sunrise and sunset in April in Valayanmadam?
How many hours of sunshine does Valayanmadam have in April?
When is the highest UV index in Valayanmadam?
What is the UV index intensity in April in Valayanmadam?
Average temperature in April
Valayanmadam, 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
Valayanmadam, 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
Valayanmadam, 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
Valayanmadam, 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
Valayanmadam, 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
Valayanmadam, 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
Valayanmadam, 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
Valayanmadam, 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
Valayanmadam, 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
Valayanmadam, 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
Valayanmadam, 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).
Valayanmadam, Sri Lanka
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