August weather forecast
Sylhet, Bangladesh

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Weather in August

August sustains the monsoon momentum in Sylhet as one of the peak rainy months. Conditions remain consistent with those of the previous month, showcasing high temperatures, intensive rainfall, and high humidity levels. Despite a deplete in rain volumes to 308mm (12.13"), the month still receives extensive showers over 30.2 days. Wind speeds start to decrease, yet this month remains blustery following the trends of a typical monsoon season. August stands out as the rainiest month, paralleling the weather patterns exhibited in July.

Temperature

The arrival of August marks a slight shift to an average high-temperature of a still tropical 31.6°C (88.9°F) from July's 31.3°C (88.3°F). Throughout the month of August, Sylhet witnesses an average low-temperature of 24.9°C (76.8°F).

Heat index

August's mean heat index is estimated at a life-threatening hot 46°C (114.8°F). Mindful: Heat cramps and heat exhaustion are to be expected. Extended physical effort might result in heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in August in Sylhet is 88%.

Rainfall

In Sylhet, during August, the rain falls for 30.2 days and regularly aggregates up to 308mm (12.13") of precipitation. Throughout the year, in Sylhet, there are 208.1 rainfall days, and 1868mm (73.54") of precipitation is accumulated.

Daylight

In Sylhet, Bangladesh, the average length of the day in August is 12h and 59min.
On the first day of the month, sunrise is at 5:20 am and sunset at 6:37 pm. On the last day of August, in Sylhet, Bangladesh, sunrise is at 5:33 am and sunset at 6:12 pm +06.

Sunshine

In August, the average sunshine is 7.5h.

UV index

In August, the average daily maximum UV index in Sylhet is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In August, the maximum UV index of 6 suggests this advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

How hot does it get in Sylhet in August?

The average high-temperature and low-temperature in Sylhet during August are 31.6°C (88.9°F) and 24.9°C (76.8°F) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 46°C (114.8°F).

What is the average humidity in August in Sylhet?

The average relative humidity in August is 88%.

How much does it rain in Sylhet in August?

In August, the rain falls for 30.2 days. Throughout August, 308mm (12.13") of precipitation is accumulated.

How many hours of daylight does Sylhet have in August?

In August, the average day length is 12h and 59min.

When are sunrise and sunset in August in Sylhet?

On the first day of August in Sylhet, Bangladesh, sunrise is at 5:20 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 6:12 pm +06.

How many hours of sunshine does Sylhet have in August?

In August, the average sunshine duration is 7.5h.

What is the UV index reading in August in Sylhet?

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Sylhet, Bangladesh

Average temperature in August - Sylhet, Bangladesh
  • Average high temperature in August: 31.6°C

The warmest month (with the highest average high temperature) is April (34.4°C).
The month with the lowest average high temperature is December (25.5°C).

  • Average low temperature in August: 24.9°C

The month with the highest average low temperature is June (25.3°C).
The coldest month (with the lowest average low temperature) is January (12°C).

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Average pressure in August
Sylhet, Bangladesh

Average pressure in August - Sylhet, Bangladesh
  • Average pressure in August: 1003.3mbar

The month with the highest atmospheric pressure is January (1014.9mbar).
The month with the lowest atmospheric pressure is July (1002mbar).

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Average wind speed in August
Sylhet, Bangladesh

Average wind speed in August - Sylhet, Bangladesh
  • Average wind speed in August: 7km/h

The windiest month (with the highest average wind speed) is July (7.7km/h).
The calmest months (with the lowest average wind speed) are November and December (4.3km/h).

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Average humidity in August
Sylhet, Bangladesh

Average humidity in August - Sylhet, Bangladesh
  • Average humidity in August: 88%

The month with the highest relative humidity is July (89%).
The month with the lowest relative humidity is March (55%).

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Average rainfall in August
Sylhet, Bangladesh

Average rainfall in August - Sylhet, Bangladesh
  • Average rainfall in August: 308mm

The wettest month (with the highest rainfall) is June (353mm).
The driest month (with the least rainfall) is January (4mm).

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Average rainfall days in August
Sylhet, Bangladesh

Average rainfall days in August - Sylhet, Bangladesh
  • Average rainfall days in August: 30.2 days

The month with the highest number of rainy days is August (30.2 days).
The month with the least rainy days is January (2.4 days).

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Average daylight in August /
Average sunshine in August
Sylhet, Bangladesh

Average daylight in August / Average sunshine in August - Sylhet, Bangladesh
  • Average daylight in August: 13h and 0min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in August: 7h and 3min

The month with the most sunshine is April (Average sunshine: 10h and 30min).
The month with the least sunshine is July (Average sunshine: 6h and 54min).

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Average sunshine days in August
Sylhet, Bangladesh

Average sunshine days in August - Sylhet, Bangladesh
  • Average sunshine days in August: 0.8 days

The months with the most sunshine days are January and December (27.6 days).
The month with the least sunshine days is June (0.4 days).

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Average UV index in August
Sylhet, Bangladesh

Average UV index in August - Sylhet, Bangladesh
  • Average UV index in August: 6

The months with the highest UV index are April and September (UV index 7).
The months with the lowest UV index are January and December (UV index 5).

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Average cloud cover in August
Sylhet, Bangladesh

Average cloud cover in August - Sylhet, Bangladesh
  • Average cloud cover in August: 59

The month with the most cloud cover is July (Cloud cover 62).
The month with the least cloud cover is January (Cloud cover 8).

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Average visibility in August
Sylhet, Bangladesh

Average visibility in August - Sylhet, Bangladesh
  • Average visibility in August: 7km

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

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Sylhet, Bangladesh

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