April weather forecast
Vannivilankulam, Sri Lanka

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Weather in April

April, the same as March, in Vannivilankulam, Sri Lanka, is a hot spring month, with an average temperature varying between 27°C (80.6°F) and 31.4°C (88.5°F).

Temperature

Vannivilankulam's warmest weather arrives in April, when temperatures average a high of 31.4°C (88.5°F) and a low of 27°C (80.6°F).

Heat index

The heat index in April is evaluated at a scorching 41°C (105.8°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Vannivilankulam, the average relative humidity in April is 76%.

Rainfall

In Vannivilankulam, in April, during 15.3 rainfall days, 48mm (1.89") of precipitation is typically accumulated. Throughout the year, there are 181.2 rainfall days, and 849mm (33.43") of precipitation is accumulated.

Daylight

In Vannivilankulam, the average length of the day in April is 12h and 20min.
On the first day of the month, sunrise is at 06:05 and sunset at 18:18. On the last day of April, sunrise is at 05:52 and sunset at 18:18 +0530.

Sunshine

In Vannivilankulam, the average sunshine in April is 10h.

UV index

The months with the highest UV index in Vannivilankulam are January through October and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In April, the maximum UV index of 7 suggests these recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

What is the warmest month in Vannivilankulam?

April, known for its average high temperature of 31.4°C (88.5°F) and an average low temperature of 27°C (80.6°F), is the warmest month in Vannivilankulam, Sri Lanka.

How hot is it in Vannivilankulam in April?

The high-temperature during April is 31.4°C (88.5°F) and the low-temperature is 27°C (80.6°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in April is evaluated at 41°C (105.8°F).

What is the average humidity in April in Vannivilankulam?

In Vannivilankulam, the average relative humidity in April is 76%.

How many days does it rain in April in Vannivilankulam?

In Vannivilankulam, in April, it is raining for 15.3 days, with typically 48mm (1.89") of accumulated precipitation.

What is the average length of the day in April in Vannivilankulam?

In April, the average day length in Vannivilankulam, Sri Lanka, is 12h and 20min.

When are sunrise and sunset in April in Vannivilankulam?

On the first day of April in Vannivilankulam, Sri Lanka, sunrise is at 06:05 and sunset at 18:18. On the last day of the month, sunrise is at 05:52 and sunset at 18:18 +0530.

How many hours of sunshine does Vannivilankulam have in April?

In Vannivilankulam, Sri Lanka, the average sunshine duration in April is 10h.

What is the month with the highest UV index in Vannivilankulam?

The months with the highest UV index in Vannivilankulam, Sri Lanka, are January through October and December, with an average maximum UV index of 7.

What is the UV index reading in April in Vannivilankulam?

The average daily maximum UV index in April in Vannivilankulam, Sri Lanka, is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.

Average temperature in April
Vannivilankulam, Sri Lanka

Average temperature in April - Vannivilankulam, Sri Lanka
  • Average high temperature in April: 31.4°C

The warmest month (with the highest average high temperature) is April (31.4°C).
The month with the lowest average high temperature is January (28.4°C).

  • Average low temperature in April: 27°C

The month with the highest average low temperature is May (28.1°C).
The coldest month (with the lowest average low temperature) is February (23.9°C).

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Average pressure in April
Vannivilankulam, Sri Lanka

Average pressure in April - Vannivilankulam, Sri Lanka
  • Average pressure in April: 1008.9mbar

The month with the highest atmospheric pressure is January (1012.2mbar).
The month with the lowest atmospheric pressure is June (1006.5mbar).

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Average wind speed in April
Vannivilankulam, Sri Lanka

Average wind speed in April - Vannivilankulam, Sri Lanka
  • Average wind speed in April: 15.4km/h

The windiest month (with the highest average wind speed) is June (32.4km/h).
The calmest month (with the lowest average wind speed) is April (15.4km/h).

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Average humidity in April
Vannivilankulam, Sri Lanka

Average humidity in April - Vannivilankulam, Sri Lanka
  • Average humidity in April: 76%

The months with the highest relative humidity are November and December (79%).
The month with the lowest relative humidity is March (75%).

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Average rainfall in April
Vannivilankulam, Sri Lanka

Average rainfall in April - Vannivilankulam, Sri Lanka
  • Average rainfall in April: 48mm

The wettest month (with the highest rainfall) is November (207mm).
The driest month (with the least rainfall) is June (28mm).

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Average rainfall days in April
Vannivilankulam, Sri Lanka

Average rainfall days in April - Vannivilankulam, Sri Lanka
  • Average rainfall days in April: 15.3 days

The months with the highest number of rainy days are October and November (23.8 days).
The month with the least rainy days is February (9.1 days).

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Average daylight in April /
Average sunshine in April
Vannivilankulam, Sri Lanka

Average daylight in April / Average sunshine in April - Vannivilankulam, 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 36min).

  • Average sunshine in April: 10h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are November and December (Average sunshine: 5h and 42min).

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Average sunshine days in April
Vannivilankulam, Sri Lanka

Average sunshine days in April - Vannivilankulam, Sri Lanka
  • Average sunshine days in April: 10.2 days

The month with the most sunshine days is March (19 days).
The month with the least sunshine days is November (4.4 days).

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Average UV index in April
Vannivilankulam, Sri Lanka

Average UV index in April - Vannivilankulam, 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).

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Average cloud cover in April
Vannivilankulam, Sri Lanka

Average cloud cover in April - Vannivilankulam, Sri Lanka
  • Average cloud cover in April: 26

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is March (Cloud cover 18).

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Average visibility in April
Vannivilankulam, Sri Lanka

Average visibility in April - Vannivilankulam, Sri Lanka
  • Average visibility in April: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).

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Vannivilankulam, Sri Lanka

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