August weather forecast
Polonnaruwa, Sri Lanka

Weather in August

August, the last month of the summer in Polonnaruwa, is another hot month, with an average temperature ranging between max 33.7°C (92.7°F) and min 24.3°C (75.7°F).

Temperature

In August, the average high-temperature is practically the same as in July - a still tropical 33.7°C (92.7°F). In Polonnaruwa, the average low-temperature is 24.3°C (75.7°F).

Heat index

The average heat index in August is computed to be a scorching 44°C (111.2°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, clothing, differences in body mass, height, and shape, and metabolic differences affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The months with the lowest humidity in Polonnaruwa, Sri Lanka, are June through September, with an average relative humidity of 67%.

Rainfall

In August, the rain falls for 11.5 days. Throughout August, 29mm (1.14") of precipitation is accumulated. Throughout the year, in Polonnaruwa, there are 196.8 rainfall days, and 943mm (37.13") of precipitation is accumulated.

Daylight

In Polonnaruwa, the average length of the day in August is 12h and 23min.
On the first day of August, sunrise is at 05:58 and sunset at 18:26. On the last day of the month, sunrise is at 05:58 and sunset at 18:14 +0530.

Sunshine

The average sunshine in August is 9.6h.

UV index

The months with the highest UV index in Polonnaruwa are February through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in August in Polonnaruwa?

The average high-temperature, in August, in Polonnaruwa, Sri Lanka, is 33.7°C (92.7°F), while the average low-temperature is 24.3°C (75.7°F). in August, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is computed to be 44°C (111.2°F).

What are the least humid months in Polonnaruwa?

The months with the lowest humidity in Polonnaruwa, Sri Lanka, are June through September, with an average relative humidity of 67%.

What is the average humidity in August in Polonnaruwa?

In Polonnaruwa, Sri Lanka, the average relative humidity in August is 67%.

How much does it rain in Polonnaruwa in August?

In Polonnaruwa, Sri Lanka, during August, the rain falls for 11.5 days and regularly aggregates up to 29mm (1.14") of precipitation.

What is the average length of the day in August in Polonnaruwa?

In Polonnaruwa, Sri Lanka, the average day length in August is 12h and 23min.

What time are sunrise and sunset in August in Polonnaruwa?

On the first day of August in Polonnaruwa, sunrise is at 05:58 and sunset at 18:26. On the last day of the month, sunrise is at 05:58 and sunset at 18:14 +0530.

How long on average sun shines in August in Polonnaruwa?

In August, the average sunshine duration is 9.6h.

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

The months with the highest UV index in Polonnaruwa are February through October, with an average maximum UV index of 7.

What is the UV index reading in August in Polonnaruwa?

The average daily maximum UV index in August in Polonnaruwa, Sri Lanka, is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Average temperature in August
Polonnaruwa, Sri Lanka

Average temperature in August - Polonnaruwa, Sri Lanka
  • Average high temperature in August: 33.7°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 August: 24.3°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).

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Average pressure in August
Polonnaruwa, Sri Lanka

Average pressure in August - Polonnaruwa, Sri Lanka
  • Average pressure in August: 1008mbar

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

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Average wind speed in August
Polonnaruwa, Sri Lanka

Average wind speed in August - Polonnaruwa, Sri Lanka
  • Average wind speed in August: 21.3km/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).

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Average humidity in August
Polonnaruwa, Sri Lanka

Average humidity in August - Polonnaruwa, Sri Lanka
  • Average humidity in August: 67%

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

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Average rainfall in August
Polonnaruwa, Sri Lanka

Average rainfall in August - Polonnaruwa, Sri Lanka
  • Average rainfall in August: 29mm

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

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Average rainfall days in August
Polonnaruwa, Sri Lanka

Average rainfall days in August - Polonnaruwa, Sri Lanka
  • Average rainfall days in August: 11.5 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).

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Average daylight in August /
Average sunshine in August
Polonnaruwa, Sri Lanka

Average daylight in August / Average sunshine in August - Polonnaruwa, Sri Lanka
  • Average daylight in August: 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 August: 9h and 4min

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).

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Average sunshine days in August
Polonnaruwa, Sri Lanka

Average sunshine days in August - Polonnaruwa, Sri Lanka
  • Average sunshine days in August: 14.7 days

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

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Average UV index in August
Polonnaruwa, Sri Lanka

Average UV index in August - Polonnaruwa, Sri Lanka
  • Average UV index in August: 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).

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Average cloud cover in August
Polonnaruwa, Sri Lanka

Average cloud cover in August - Polonnaruwa, Sri Lanka
  • Average cloud cover in August: 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).

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Average visibility in August
Polonnaruwa, Sri Lanka

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

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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