Sylhet
Bangladesh
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Sylhet, Bangladesh

The first month of the winter, December, is still a warm month in Sylhet, Bangladesh, with average temperature varying between 14°C (57.2°F) and 26.3°C (79.3°F).

Temperature

In December, the average high-temperature is practically the same as in November - a still moderately hot 26.3°C (79.3°F). The average low-temperature, is 14°C (57.2°F).

Rainfall

Throughout December, in Sylhet, 13mm (0.5") of precipitation is accumulated. During the entire year, Sylhet aggregates up to 4200mm (165.4") of precipitation.

Daylight

December has the shortest days of the year, with an average of 10.6h of daylight.

Sunshine

Months with the most sunshine in Sylhet are January, February, November and December, with an average of 8h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in December in Sylhet?

In Sylhet, Bangladesh, in December, the average high-temperature is 26.3°C (79.3°F), and the average low-temperature is 14°C (57.2°F).

How much does it rain in Sylhet in December?

In Sylhet, in December, 13mm (0.5") of precipitation is typically accumulated.

What is the month with the shortest days in Sylhet?

The month with the shortest days in Sylhet, Bangladesh, is December, with an average of 10.6h of daylight.

What is the average length of the day in December in Sylhet?

In December, the average length of the day in Sylhet, Bangladesh, is 10.6h.

What are the months with the most sunshine in Sylhet?

January, February, November and December, with an average of 8h of sunshine, are months with the most sunshine.

How many hours of sunshine does Sylhet have in December?

In December, the average sunshine in Sylhet is 8h.

What is the month with the lowest UV index in Sylhet?

December is the month with the lowest UV index in Sylhet, with an average maximum UV index of 5.

What is the UV index reading in December in Sylhet?

In December, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in December - Sylhet, Bangladesh
  • Average high temperature in December: 26.3°C

The warmest month (with the highest average high temperature) is August (31.6°C).
The month with the lowest average high temperature is January (25.2°C).

  • Average low temperature in December: 14°C

The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (12.9°C).

Average rainfall in December - Sylhet, Bangladesh
  • Average rainfall in December: 13mm

The wettest month (with the highest rainfall) is July (834mm).
The driest month (with the lowest rainfall) is January (8mm).

Average rainfall days in December - Sylhet, Bangladesh
  • Average rainfall days in December: 0 days

Months with the highest number of rainy days are June and July (18 days).
The month with the lowest number of rainy days is December (0 days).

Average daylight in December / Average sunshine in December - Sylhet, Bangladesh
  • Average daylight in December: 10.6h

The month with the longest days is June (Average daylight: 13.7h).
The month with shortest days is December (Average daylight: 10.6h).

  • Average sunshine in December: 8h

Months with most sunshine are January, February, November and December (Average sunshine: 8h).
The month with least sunshine is July (Average sunshine: 3h).

Average UV index in December - Sylhet, Bangladesh
  • Average UV index in December: 5

Months with the highest UV index are May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 5).