December Weather in Chattogram, Bangladesh

Last updated: August 21, 2025

In December, Chattogram, Bangladesh experiences a mild and pleasant climate, marked by a maximum temperature of 28°C (83°F) and an average temperature of 22°C (71°F). The minimum temperature dips to a comfortable 16°C (61°F), providing a refreshing atmosphere. With only 24 mm (0.9 in) of precipitation over just 2 days, the month is predominantly dry, ideal for outdoor activities. The humidity level hovers around 64%, contributing to a pleasant ambiance, making December a delightful time for both residents and visitors to explore this vibrant coastal city.

December Temperature in Chattogram

In December, Chattogram, Bangladesh, experiences a refreshing climate, a shift from the sweltering heat of the preceding months. With a minimum temperature of 16°C (61°F) and an average of 22°C (71°F), the month offers a pleasant respite for both residents and visitors alike. The maximum temperature peaks at a comfortable 28°C (83°F), marking a gradual cooling trend as the year comes to a close. This contrasts sharply with the intense warmth of late spring and summer, making December an inviting time to explore the vibrant city. As the humidity reduces and the skies clear, outdoor activities become more enjoyable, showcasing Chattogram's charm in this temperate winter season.

December Weather in Chattogram: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Chattogram, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chattogram, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec687178828483828283827871
Data source: Temperature data for Chattogram generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Chattogram

In December, Chattogram experiences a notable decrease in precipitation, receiving only 24 mm (0.9 in) over just 2 days. This drop marks a sharp contrast to the heavy rains of the monsoon months, where June and July dominate with staggering amounts of 642 mm (25.3 in) and 707 mm (27.8 in), respectively. As the year winds down, the precipitation begins to taper off significantly, following the trend established in November with 42 mm (1.6 in). The festive month of December offers drier conditions, providing a brief respite before the cycle of rainfall likely resumes in the upcoming months, allowing residents to enjoy the cooler weather with less concern for downpours.

December Precipitation Trends in Chattogram

The chart displays monthly precipitation patterns in Chattogram, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Chattogram, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7435711396427074463262544224
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Chattogram

As December arrives in Chattogram, Bangladesh, the humidity begins to stabilize after the intense moisture of the monsoon months. With levels sitting at 64%, December reflects a transition from the earlier spikes experienced from July through September, where humidity peaks at 81% or higher. Following a noticeable dip in March, when the air felt particularly dry at just 41%, the month of December maintains a comfortable balance, higher than the winter months of January and February, which record 57% and 50% humidity, respectively. This gradual decline and eventual stabilization indicate the end of the wet season and usher in a brief respite before the cycle begins anew with the arrival of the dry winter months.

December Average Humidity in Chattogram

This chart illustrates the average monthly humidity levels in Chattogram, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Chattogram is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec57%50%41%45%69%72%81%78%83%78%68%64%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Chattogram

In Chattogram, Bangladesh, the UV Index experiences notable fluctuations throughout the year, with December marking a transition back to lower levels. After a series of extreme ratings peaking at 13 in the summer months from June to September, the index dips to a manageable 6 in December, categorized as high exposure. This reduction translates to a longer safe burn time of 25 minutes, allowing residents and visitors to enjoy outdoor activities with added protection. The UV Index in December differs significantly from the extremes of May to October, which all fall within the extreme category with burn times as short as 10 minutes. This trend underscores the importance of seasonal awareness regarding sun safety. For those planning their sun exposure, detailed insights can be found at Chattogram UV Index.

Maximum UV Index Levels in Chattogram for December

The chart shows the monthly maximum UV Index (UVI) for Chattogram in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Chattogram typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec68101012131313121186
Data source: Chattogram December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Chattogram

December in Chattogram, Bangladesh, shines brightly with 289 hours of sunlight, making it a delightful conclusion to the year. As one of the sunniest months, December continues a trend of increasing light hours from the cooler months of November and October. The city's sunlight peaks in the pre-monsoon months, with May boasting the highest count at 345 hours, while overall, the trend displays a gradual decrease as the monsoon season approaches. Despite the dip in light during the rainy months, December's ample sunshine offers a warm and inviting atmosphere perfect for exploring Chattogram's stunning landscapes.

Monthly Sunshine Duration in Chattogram: December Highlighted

The December sunshine duration represents the total number of hours Chattogram experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec245h291h331h333h345h270h271h282h281h295h296h289h
Data source: Chattogram December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Chattogram During December

In Chattogram, Bangladesh, December offers a promising 71% chance of sunny weather, marking a delightful transition into the cooler months. This percentage remains relatively high compared to the preceding rainy season, distinguished by stark lows, such as a mere 4% in July. Interestingly, December shares a stronger resemblance to the sunny outlook of November, which boasts a 75% likelihood of clear skies, highlighting a trend towards more favorable weather as the year closes. As the calendar progresses into winter, residents can anticipate a refreshing blend of sun and comfort, making December a pleasant month to revel in the outdoors.

Percentage of Sunny Days in December in Chattogram

The chart illustrates the percentage of sunny days in Chattogram throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Chattogram experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec92%88%73%80%58%14%4%8%16%45%75%71%
Data source: Chattogram December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Chattogram in December

In Chattogram, Bangladesh, the daylight duration waxes and wanes throughout the year, creating a rhythmic pattern of illumination. January and December each offer 10 hours of daylight, marking the shorter periods of light during the winter months. As spring approaches, the hours gradually increase, peaking in May, June, and July with a generous 13 hours. This seasonal glow starts to wane as summer transitions into fall, with daylight twinkling down to 12 hours in August and September and further diminishing to 11 hours in October and November. The cyclical nature of daylight in Chattogram captivates, reflecting the region's rich seasonal diversity and setting a unique backdrop for each month's activities.

Average Daylight Hours in Chattogram for December

The chart illustrates the variation in daylight duration in Chattogram throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 55m11h 23m12h 1m12h 39m13h 11m13h 27m13h 19m12h 51m12h 14m11h 36m11h 3m10h 46m
Data source: Chattogram daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Chattogram

In Chattogram, Bangladesh, December brings a gentle embrace of cool winds, with an average wind speed of 3.5 m/s (8 mph). This marks a return to milder breezes after the more vigorous gusts of the monsoon months. Notably, as the year progresses, wind speeds tend to rise from January's 3.0 m/s to a peak in June of 5.8 m/s (13 mph). Following this peak, a gradual decrease ensues, leading to December’s calm winds, reminiscent of the tranquility before the new year. This pattern highlights a seasonal shift, as the summer's intensity gives way to winter's serene stillness, making December a refreshing month in the otherwise bustling coastal city.

Average December Wind Speed in Chattogram

The chart displays monthly wind speed patterns in Chattogram, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.03.33.73.84.05.85.64.93.82.83.53.5 m/s
Data source: Chattogram December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Chattogram Compares to Other Months

Weather in Chattogram varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Chattogram, focusing on differences in temperature, rainfall, humidity, and UV levels.

In December, the weather boasts warmer temperatures with a minimum of 16°C (61°F) and an average high of 28°C (83°F), accompanied by 24 mm (0.9 in) of precipitation over two days. The humidity during this month hovers around 64%, lending a slightly more tropical feel. In contrast, January experiences slightly cooler temperatures, with a minimum of 15°C (60°F) and an average high of 27°C (81°F). Precipitation drops significantly to just 6 mm (0.3 in) over one day, and humidity decreases to 57%, making it a drier month overall. For a closer look at the weather specifics in January, check out Chattogram weather in January.

In December, the weather features a comfortable range of temperatures, with minimums around 16°C (61°F) and maximums peaking at 28°C (83°F), accompanied by moderate humidity at 64%. With an average precipitation of 24 mm (0.9 in) over two days, December tends to be slightly wetter than February. In contrast, February sees a similar temperature range with a minimum of 15°C (59°F) and maximum of 28°C (82°F), but with significantly lower precipitation at just 4 mm (0.1 in) over one day and a drop in humidity to 50%. For more details on February weather, visit Chattogram weather in February.

In December, temperatures in Chattogram range from a mild minimum of 16°C (61°F) to a comfortable maximum of 28°C (83°F), with an average of 22°C (71°F). The month experiences relatively low humidity at 64% and light precipitation of 24 mm (0.9 in) over just 2 days. In contrast, March brings warmer weather with a minimum of 19°C (66°F) and a peak of 32°C (91°F), leading to a higher average of 26°C (78°F). This month also sees an increase in rainfall, totaling 35 mm (1.4 in) over 3 days, but with a significantly lower humidity of 41%. For more details on the weather in March, you can visit Chattogram weather in March.

In December, the weather is relatively mild, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 28°C (83°F) and an average of 22°C (71°F). The month experiences light precipitation, totaling 24 mm (0.9 in) over just 2 days, accompanied by a humidity level of 64%. In contrast, April sees significantly warmer conditions, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 33°C (92°F) and an average of 28°C (83°F). This month is also wetter, receiving 71 mm (2.8 in) of rain over 8 days, and features lower humidity at 45%. For more details on the April weather, visit Chattogram weather in April.

December and May present distinctly different weather patterns. In December, temperatures range from a mild 16°C (61°F) at night to a comfortable average of 22°C (71°F) during the day, with maximums reaching 28°C (83°F). The month sees relatively low precipitation, with only 24 mm (0.9 in) over just 2 days, and humidity levels around 64%. In contrast, May experiences significantly warmer temperatures, with nighttime lows of 24°C (75°F) and daytime averages climbing to 29°C (84°F), peaking at 33°C (92°F). However, this month is also characterized by increased rainfall, totaling 139 mm (5.5 in) over 16 days, alongside a higher humidity level of 69%. For more information on May's weather specifics, visit Chattogram weather in May.

In December, the weather is considerably milder, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 28°C (83°F), and an average of 22°C (71°F). Precipitation is quite light, with only 24 mm (0.9 in) occurring over just 2 days, and the humidity levels are typically around 64%. In contrast, June brings much warmer temperatures, with a minimum of 26°C (78°F) and a maximum of 31°C (89°F), averaging at 28°C (83°F). Rainfall is significantly higher during this month, with 642 mm (25.3 in) spread across 27 days, resulting in an elevated humidity level of 72%. For more details on the weather in June, you can visit Chattogram weather in June.

In December, the weather in Chattogram is relatively mild, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 28°C (83°F). The average temperature hovers around 22°C (71°F), and the region experiences minimal precipitation, totaling just 24 mm (0.9 in) over about 2 days, with humidity at a comfortable 64%. In contrast, July is characterized by significantly warmer temperatures, with a minimum of 25°C (78°F) and a maximum reaching up to 31°C (88°F), averaging around 28°C (82°F). However, it also brings heavy rainfall, accumulating 707 mm (27.8 in) over the course of nearly the entire month, resulting in a much higher humidity level of 81%. For more details, you can check Chattogram weather in July.

When comparing the weather in December and August, it's clear that December offers a milder climate with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 28°C (83°F) and an average of 22°C (71°F). This month sees relatively low precipitation at 24 mm (0.9 in) over just 2 days, resulting in a comfortable humidity level of 64%.

In contrast, August experiences much warmer conditions, with temperatures from a minimum of 26°C (79°F) to a maximum of 31°C (88°F), averaging at 28°C (83°F). However, this month is also characterized by significant rainfall, accumulating to 446 mm (17.5 in) over 29 days, leading to higher humidity levels around 78%. For more detailed insights about Chattogram’s climate during this time, you can visit Chattogram weather in August.

In comparing the weather between December and September, December tends to be much milder and drier. December experiences average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 28°C (83°F), with only 24 mm (0.9 in) of precipitation over just 2 days and a humidity level of 64%. In contrast, September is significantly warmer, with temperatures averaging between 26°C (79°F) and 32°C (90°F). This month is also characterized by heavy rainfall, totaling 326 mm (12.8 in) across 25 days and a higher humidity of 82%. For more detailed information on September weather, you can visit Chattogram weather in September.

In December, the weather is notably milder compared to October, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 28°C (83°F), and an average of 22°C (71°F). This month experiences significantly less rainfall, with only 24 mm (0.9 in) over 2 days, leading to a humidity level of 64%. In contrast, October boasts warmer temperatures, with lows of 23°C (73°F) and highs reaching 32°C (90°F), alongside substantial precipitation of 254 mm (10.0 in) spread over 17 days. The humidity in October is also higher, at 78%, making it feel more muggy. For a more detailed look at October's weather, you can check out Chattogram weather in October.

In comparing the weather between November and December, we see that December features slightly cooler temperatures, with averages ranging from a minimum of 16°C (61°F) to a maximum of 28°C (83°F), while November holds warmer temperatures, showcasing a minimum of 20°C (67°F) and a maximum of 30°C (87°F). Additionally, December experiences less precipitation, totaling 24 mm (0.9 in) over just 2 days, compared to November's 42 mm (1.6 in) during 4 days of rain. Humidity levels are also marginally lower in December at 64%, compared to November's 68%. For more detailed insights, visit Chattogram weather in November.

Compare Chattogram's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Chattogram

As the year comes to a close, December in Chattogram offers a refreshing transition to cooler temperatures, making it distinct from the hotter and more humid months preceding it. With a comfortable average temperature hovering around 22°C (71°F), the city experiences a welcome dip in heat, complemented by lower humidity levels. The month is characterized by minimal precipitation, with only a couple of rainy days, allowing for pleasant outdoor activities. If you're looking to escape the sweltering summer heat, December presents an ideal time to explore the vibrant city of Chattogram. For more insights on weather patterns throughout the year, visit Chattogram Climate.