August weather forecast
Heerassagala, Sri Lanka

August

Weather in August

The last month of the summer, August, is another warm month in Heerassagala, Sri Lanka, with an average temperature varying between 29.2°C (84.6°F) and 21.2°C (70.2°F).

Temperature

Heerassagala's shift into August is marked by a subtle change to a still warm 29.2°C (84.6°F) from July's 29.3°C (84.7°F) in temperature. Heerassagala throughout August, records an average low-temperature of 21.2°C (70.2°F).

Heat index

The heat index value for August is evaluated at a very hot 35°C (95°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Heerassagala, the average relative humidity in August is 77%.

Rainfall

In Heerassagala, in August, during 25.8 rainfall days, 84mm (3.31") of precipitation is typically accumulated. Throughout the year, there are 278.4 rainfall days, and 1466mm (57.72") of precipitation is accumulated.

Daylight

In Heerassagala, the average length of the day in August is 12h and 21min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:26. On the last day of August, sunrise is at 05:59 and sunset at 18:15 +0530.

Sunshine

In Heerassagala, the average sunshine in August is 8.7h.

UV index

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

How hot is it in Heerassagala in August?
August temperatures in Heerassagala, Sri Lanka, vary between a high-temperature of 29.2°C (84.6°F) and a low-temperature of 21.2°C (70.2°F). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 35°C (95°F).
What is the average humidity in August in Heerassagala?
In Heerassagala, Sri Lanka, the average relative humidity in August is 77%.
How much does it rain in Heerassagala in August?
In Heerassagala, Sri Lanka, in August, during 25.8 rainfall days, 84mm (3.31") of precipitation is typically accumulated.
How many hours of daylight does Heerassagala have in August?
The average day length in August in Heerassagala, Sri Lanka, is 12h and 21min.
When is the sunrise / sunset in August in Heerassagala?
In August, on the first day of the month, sunrise is at 06:00 and sunset at 18:26. On the last day of the month, in Heerassagala, Sri Lanka, sunrise is at 05:59 and sunset at 18:15 +0530.
How long on average sun shines in August in Heerassagala?
In Heerassagala, the average sunshine duration in August is 8.7h.
What are the months with the highest UV index in Heerassagala?
January through September, November and December, with an average maximum UV index of 6, are months with the highest UV index in Heerassagala.
How high is the UV index in August in Heerassagala?
The average daily maximum UV index in August in Heerassagala is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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 August - Heerassagala, Sri Lanka
Average temperature in August
Heerassagala, Sri Lanka
  • Average high temperature in August: 29.2°C

The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).

  • Average low temperature in August: 21.2°C

The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).

Average pressure in August - Heerassagala, Sri Lanka
Average pressure in August
Heerassagala, Sri Lanka
  • Average pressure in August: 1008.5mbar

The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1008.1mbar).

Average wind speed in August - Heerassagala, Sri Lanka
Average wind speed in August
Heerassagala, Sri Lanka
  • Average wind speed in August: 11.6km/h

The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

Average humidity in August - Heerassagala, Sri Lanka
Average humidity in August
Heerassagala, Sri Lanka
  • Average humidity in August: 77%

The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).

Average rainfall in August - Heerassagala, Sri Lanka
Average rainfall in August
Heerassagala, Sri Lanka
  • Average rainfall in August: 84mm

The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in August - Heerassagala, Sri Lanka
Average rainfall days in August
Heerassagala, Sri Lanka
  • Average rainfall days in August: 25.8 days

The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).

Average daylight in August / Average sunshine in August - Heerassagala, Sri Lanka
Average daylight in August /
Average sunshine in August
Heerassagala, Sri Lanka
  • Average daylight in August: 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 August: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in August - Heerassagala, Sri Lanka
Average sunshine days in August
Heerassagala, Sri Lanka
  • Average sunshine days in August: 2.6 days

The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).

Average UV index in August - Heerassagala, Sri Lanka
Average UV index in August
Heerassagala, Sri Lanka
  • Average UV index in August: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).

Average cloud cover in August - Heerassagala, Sri Lanka
Average cloud cover in August
Heerassagala, Sri Lanka
  • Average cloud cover in August: 34

The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).

Average visibility in August - Heerassagala, Sri Lanka
Average visibility in August
Heerassagala, Sri Lanka
  • Average visibility in August: 10km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).

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