April weather forecast
Hiriwadunna, Sri Lanka

April

Weather in April

April, the same as March, in Hiriwadunna, Sri Lanka, is another hot spring month, with temperature in the range of an average low of 23.5°C (74.3°F) and an average high of 34.9°C (94.8°F).

Temperature

In Hiriwadunna, Sri Lanka, April is the month with the highest recorded average temperatures, measuring a high of 34.9°C (94.8°F) and a low of 23.5°C (74.3°F).

Heat index

The heat index in April is appraised at a life-threatening hot 52°C (125.6°F). Guard: Heat exhaustion and heat cramps are foreseeable. Prolonged effort may bring about heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light 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', is a numerical representation of warmth when taking temperature and moisture levels into account. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In April, the average relative humidity in Hiriwadunna is 73%.

Rainfall

In Hiriwadunna, during April, the rain falls for 23.6 days and regularly aggregates up to 103mm (4.06") of precipitation. In Hiriwadunna, during the entire year, the rain falls for 196.8 days and collects up to 943mm (37.13") of precipitation.

Daylight

In April, the average length of the day in Hiriwadunna, Sri Lanka, is 12h and 18min.
On the first day of the month, sunrise is at 06:04 and sunset at 18:16. On the last day of April, in Hiriwadunna, sunrise is at 05:52 and sunset at 18:16 +0530.

Sunshine

In April, the average sunshine in Hiriwadunna is 10.1h.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index in Hiriwadunna. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In April, the maximum UV index of 7 suggests this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

What is the hottest time of year in Hiriwadunna?
Hiriwadunna, Sri Lanka, notes the warmest temperatures in April, with a average high of 34.9°C (94.8°F) and a low of 23.5°C (74.3°F).
How hot does it get in Hiriwadunna in April?
The average high-temperature, in April, in Hiriwadunna, is 34.9°C (94.8°F), while the average low-temperature is 23.5°C (74.3°F). In April, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 52°C (125.6°F).
What is the average humidity in April in Hiriwadunna?
In Hiriwadunna, the average relative humidity in April is 73%.
How much does it rain in Hiriwadunna in April?
In Hiriwadunna, during April, the rain falls for 23.6 days and regularly aggregates up to 103mm (4.06") of precipitation.
How many hours of daylight does Hiriwadunna have in April?
The average day length in April in Hiriwadunna, Sri Lanka, is 12h and 18min.
What time are sunrise and sunset in April in Hiriwadunna?
On the first day of April in Hiriwadunna, sunrise is at 06:04 and sunset at 18:16. On the last day of the month, sunrise is at 05:52 and sunset at 18:16 +0530.
How many hours of sunshine does Hiriwadunna have in April?
In Hiriwadunna, the average sunshine duration in April is 10.1h.
What is the month with the highest UV index in Hiriwadunna?
February through October, with an average maximum UV index of 7, are months with the highest UV index.
What is the UV index intensity in April in Hiriwadunna?
In Hiriwadunna, Sri Lanka, the average daily maximum UV index in April is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in April
Hiriwadunna, Sri Lanka
  • Average high temperature in April: 34.9°C

The warmest month (with the highest average high temperature) is April (34.9°C).
The months with the lowest average high temperature are January and December (29.3°C).

  • Average low temperature in April: 23.5°C

The month with the highest average low temperature is June (24.8°C).
The coldest months (with the lowest average low temperature) are January and February (20°C).

Average pressure in April
Hiriwadunna, Sri Lanka
  • Average pressure in April: 1009.4mbar

The month with the highest atmospheric pressure is January (1012mbar).
The month with the lowest atmospheric pressure is June (1007.5mbar).

Average wind speed in April
Hiriwadunna, Sri Lanka
  • Average wind speed in April: 7.1km/h

The windiest month (with the highest average wind speed) is June (23.8km/h).
The calmest month (with the lowest average wind speed) is April (7.1km/h).

Average humidity in April
Hiriwadunna, Sri Lanka
  • Average humidity in April: 73%

The month with the highest relative humidity is December (84%).
The months with the lowest relative humidity are June, July, August and September (67%).

Average rainfall in April
Hiriwadunna, Sri Lanka
  • Average rainfall in April: 103mm

The wettest month (with the highest rainfall) is October (214mm).
The driest month (with the least rainfall) is June (15mm).

Average rainfall days in April
Hiriwadunna, Sri Lanka
  • Average rainfall days in April: 23.6 days

The month with the highest number of rainy days is November (24.1 days).
The month with the least rainy days is June (7.8 days).

Average daylight in April /
Average sunshine in April
Hiriwadunna, 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: 10h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in April
Hiriwadunna, Sri Lanka
  • Average sunshine days in April: 4.3 days

The month with the most sunshine days is July (16 days).
The month with the least sunshine days is November (4.2 days).

Average UV index in April
Hiriwadunna, Sri Lanka
  • Average UV index in April: 7

The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, November and December (UV index 6).

Average cloud cover in April
Hiriwadunna, Sri Lanka
  • Average cloud cover in April: 29

The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is May (Cloud cover 26).

Average visibility in April
Hiriwadunna, Sri Lanka
  • Average visibility in April: 9km

The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January and December (7km).

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