August weather forecast
Deniyaya, Sri Lanka

August

Weather in August

The last month of the summer, August, is also a moderately hot month in Deniyaya, Sri Lanka, with an average temperature ranging between max 27.5°C (81.5°F) and min 20.8°C (69.4°F).

Temperature

The average high-temperature for August is a still warm 27.5°C (81.5°F), closely aligning with the temperature of the preceding month. The nighttime temperature in Deniyaya, Sri Lanka, during August, averages of 20.8°C (69.4°F).

Heat index

For most parts of August, the heat index is calculated to be a hot 32°C (89.6°F). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

The average relative humidity in August in Deniyaya is 86%.

Rainfall

In August, in Deniyaya, Sri Lanka, the rain falls for 28.8 days. Throughout August, 184mm (7.24") of precipitation is accumulated. In Deniyaya, during the entire year, the rain falls for 317.3 days and collects up to 2422mm (95.35") of precipitation.

Daylight

In Deniyaya, the average length of the day in August is 12h and 19min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:25. On the last day of August, in Deniyaya, sunrise is at 06:00 and sunset at 18:15 +0530.

Sunshine

In August, the average sunshine in Deniyaya is 6.2h.

UV index

January through August, November and December, with an average maximum UV index of 6, are months with the highest UV index in Deniyaya, Sri Lanka. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

What are the temperatures in Deniyaya in August?
An average high-temperature, in August, in Deniyaya, is 27.5°C (81.5°F) and the average low-temperature is 20.8°C (69.4°F). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 32°C (89.6°F).
What is the average humidity in August in Deniyaya?
The average relative humidity in August in Deniyaya, Sri Lanka, is 86%.
How many days does it rain in August in Deniyaya?
In Deniyaya, Sri Lanka, in August, it is raining for 28.8 days, with typically 184mm (7.24") of accumulated precipitation.
How many hours of daylight does Deniyaya have in August?
The average day length in August in Deniyaya is 12h and 19min.
When are sunrise and sunset in August in Deniyaya?
On the first day of August in Deniyaya, sunrise is at 06:02 and sunset at 18:25. On the last day of the month, sunrise is at 06:00 and sunset at 18:15 +0530.
How many hours of sunshine does Deniyaya have in August?
The average sunshine duration in August in Deniyaya, Sri Lanka, is 6.2h.
What are the months with the highest UV index in Deniyaya?
The months with the highest UV index in Deniyaya are January through August, November and December, with an average maximum UV index of 6.
How high is the UV index in August in Deniyaya?
The average daily maximum UV index in August in Deniyaya is 6. A UV Index reading of 6 to 7 represents a high health threat 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 - Deniyaya, Sri Lanka
Average temperature in August
Deniyaya, Sri Lanka
  • Average high temperature in August: 27.5°C

The warmest month (with the highest average high temperature) is March (31.1°C).
The months with the lowest average high temperature are June and July (27.3°C).

  • Average low temperature in August: 20.8°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 (18.7°C).

Average pressure in August - Deniyaya, Sri Lanka
Average pressure in August
Deniyaya, Sri Lanka
  • Average pressure in August: 1009.1mbar

The month with the highest atmospheric pressure is January (1011.6mbar).
The month with the lowest atmospheric pressure is May (1008.6mbar).

Average wind speed in August - Deniyaya, Sri Lanka
Average wind speed in August
Deniyaya, Sri Lanka
  • Average wind speed in August: 8.4km/h

The windiest month (with the highest average wind speed) is July (8.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.9km/h).

Average humidity in August - Deniyaya, Sri Lanka
Average humidity in August
Deniyaya, Sri Lanka
  • Average humidity in August: 86%

The months with the highest relative humidity are May and June (88%).
The months with the lowest relative humidity are January and February (80%).

Average rainfall in August - Deniyaya, Sri Lanka
Average rainfall in August
Deniyaya, Sri Lanka
  • Average rainfall in August: 184mm

The wettest month (with the highest rainfall) is October (357mm).
The driest month (with the least rainfall) is January (85mm).

Average rainfall days in August - Deniyaya, Sri Lanka
Average rainfall days in August
Deniyaya, Sri Lanka
  • Average rainfall days in August: 28.8 days

The month with the highest number of rainy days is May (29.8 days).
The month with the least rainy days is January (18.9 days).

Average daylight in August / Average sunshine in August - Deniyaya, Sri Lanka
Average daylight in August /
Average sunshine in August
Deniyaya, 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 48min).

  • Average sunshine in August: 6h and 1min

The month with the most sunshine is April (Average sunshine: 8h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in August - Deniyaya, Sri Lanka
Average sunshine days in August
Deniyaya, Sri Lanka
  • Average sunshine days in August: 0.8 days

The month with the most sunshine days is January (9.2 days).
The month with the least sunshine days is April (0.2 days).

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

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

Average cloud cover in August - Deniyaya, Sri Lanka
Average cloud cover in August
Deniyaya, Sri Lanka
  • Average cloud cover in August: 63

The month with the most cloud cover is June (Cloud cover 65).
The month with the least cloud cover is January (Cloud cover 33).

Average visibility in August - Deniyaya, Sri Lanka
Average visibility in August
Deniyaya, Sri Lanka
  • Average visibility in August: 8km

The months with the highest visibility are January, February, March, June, July, August and December (8km).
The months with the lowest visibility are April, May, September, October and November (7km).

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