December Weather in Diamond Harbour, India

Last updated: August 21, 2025

December in Diamond Harbour, India brings a delightful blend of mild temperatures and a touch of humidity, creating a pleasant atmosphere for visitors. With maximum temperatures reaching 30°C (87°F) and a cozy average of 20°C (68°F), the days are warm yet manageable. Nighttime brings cooler relief with minimum readings dropping to 11°C (51°F). While the month sees only 2 days of rainfall, accumulating to about 40 mm (1.6 in), the overall humidity stands at a balmy 69%. This combination of weather makes December an appealing time to explore the scenic beauty of Diamond Harbour.

December Temperature in Diamond Harbour

In December, Diamond Harbour enjoys a pleasant shift in temperatures, showcasing a comforting range that heralds the arrival of winter. The minimum temperature hovers around 11°C (51°F), while the average climbs to a mild 20°C (68°F), making it an ideal month for outdoor explorations. With a maximum of 30°C (87°F), days remain warm but not oppressively hot, contrasting sharply with the sweltering summer months that precede it. This trend towards cooler weather invites locals and travelers alike to partake in festive activities amidst a backdrop of refreshing breezes, setting the stage for a delightful winter experience.

December Weather in Diamond Harbour: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Diamond Harbour, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Diamond Harbour, 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).
JanFebMarAprMayJunJulAugSepOctNovDec667381858686858585837668
Data source: Temperature data for Diamond Harbour 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 Diamond Harbour

In December, Diamond Harbour experiences a noticeable shift in precipitation patterns as the monsoon season fades into a brief respite. With 40 mm (1.6 inches) of rainfall recorded over just 2 days, December marks a significant decrease compared to the heavy downpours of preceding months—particularly the peak in July and August. This transitional period underscores a steady decline in precipitation, from a staggering 335 mm (13.2 inches) in July to the relatively moderate levels experienced in December. Although the month sees fewer precipitation days, it still lays the groundwork for the drier months ahead, as the region prepares for a return to milder, clearer skies in January.

December Precipitation Trends in Diamond Harbour

The chart displays monthly precipitation patterns in Diamond Harbour, 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 Diamond Harbour, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec71646761162623353562931836440
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Diamond Harbour

In Diamond Harbour, India, December witnesses humidity levels at 69%, a noticeable drop from the peak of the monsoon months that saw July and August soaring to 84% and 86%, respectively. As the year transitions from the sweltering summer heat, where April and March recorded their lowest points at 30% and 32%, the humidity begins to rise again in May, reaching 56%. This increase continues through the latter part of the year, with November holding steady at 73%. Thus, December finds itself in a sweet middle ground, balancing the remnants of monsoon moisture with the dry air of winter, offering a comfortable respite for residents and visitors alike.

December Average Humidity in Diamond Harbour

This chart illustrates the average monthly humidity levels in Diamond Harbour, 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 Diamond Harbour is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec55%45%32%31%56%60%84%86%86%83%73%69%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Diamond Harbour

As the year progresses in Diamond Harbour, the UV Index exhibits notable fluctuations. Starting from a moderate level of 5 in January, the UV intensity rises quickly, peaking at an extreme level of 13 from July to September, where the short burn time of merely 10 minutes underlines the urgent need for sun protection. Fortunately, December brings a welcome respite, reverting to a moderate UV Index of 5, allowing residents and visitors a safe 30 minutes of sun exposure. This seasonal trend emphasizes the importance of staying informed about UV levels throughout the year to ensure sun safety. For more insight into UV conditions, visit Diamond Harbour UV Index.

Maximum UV Index Levels in Diamond Harbour for December

The chart shows the monthly maximum UV Index (UVI) for Diamond Harbour 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 Diamond Harbour typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5791012121313131175
Data source: Diamond Harbour 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 Diamond Harbour

December in Diamond Harbour, India, offers a delightful conclusion to the year's sun-kissed months, with 272 hours of sunshine. This slight dip from the previous months reflects a typical trend as the year winds down, following a peak of 345 hours in May. While December doesn’t quite reach the highs of early summer, it still showcases a comfortable brightness that complements the festive spirit. Compared to November, which enjoyed 282 hours, December experiences a subtle decrease, indicating a transition into cooler days. Overall, the month still radiates a warm glow, making it a charming time to soak in the coastal beauty before the arrival of winter.

Monthly Sunshine Duration in Diamond Harbour: December Highlighted

The December sunshine duration represents the total number of hours Diamond Harbour 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.
JanFebMarAprMayJunJulAugSepOctNovDec242h284h329h330h345h282h277h293h272h289h282h272h
Data source: Diamond Harbour December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Diamond Harbour During December

In Diamond Harbour, December marks a transitional period as the likelihood of sunny weather stands at 61%, a noticeable dip from the preceding month but a significant improvement compared to the summer monsoon months. From the sun-drenched highs of January and February, where the chances soar above 80%, the probability of clear skies steadily declines through the spring and summer, hitting a low of just 6% in July. However, as autumn signals its retreat, November brings a resurgence, boosting the sunny prospects to 66%. As December unfolds, residents and visitors can still anticipate a fair share of bright days, making it a delightful time for outdoor activities amidst the lingering warmth of the retreating year.

Percentage of Sunny Days in December in Diamond Harbour

The chart illustrates the percentage of sunny days in Diamond Harbour 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 Diamond Harbour experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec87%84%77%64%51%19%6%7%8%49%66%61%
Data source: Diamond Harbour December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Diamond Harbour in December

In Diamond Harbour, India, daylight duration follows a rhythmic pattern throughout the year, peaking in the warmer months. Starting with 10 hours in January, the days gradually lengthen, reaching a delightful 13 hours in both May and June. This generous exposure to sunlight carries through the summer before beginning to wane as the year closes; by December, the daylight shrinks back to 10 hours. The transition from the lengthy days of summer to the shorter ones of winter reveals an engaging shift in the region's natural light, making each month distinct and perfectly suited for various activities. The gentle ebb and flow of daylight not only marks the changing seasons but also enriches the vibrant life of this picturesque locale.

Average Daylight Hours in Diamond Harbour for December

The chart illustrates the variation in daylight duration in Diamond Harbour throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 56m11h 24m12h 1m12h 39m13h 11m13h 26m13h 19m12h 51m12h 14m11h 36m11h 4m10h 47m
Data source: Diamond Harbour daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Diamond Harbour

In Diamond Harbour, India, the December wind brings a gentle respite with an average speed of 2.1 m/s (5 mph), echoing the calm seen in the preceding months of January and February. As the year winds down, the breeze transitions from the slightly more spirited winds of April and May, where speeds peak at 3.2 m/s (7 mph) and 3.4 m/s (8 mph), to a more tranquil rhythm that begins in the cooler months of late autumn. Interestingly, while the early summer months enjoy a lively gust, the subsequent cooler months taper off, culminating in the soothing, moderate winds characteristic of December. This trend underscores a seasonal cycle where lively breezes gradually give way to a more serene atmosphere, perfect for enjoying the beauty of Diamond Harbour.

Average December Wind Speed in Diamond Harbour

The chart displays monthly wind speed patterns in Diamond Harbour, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.12.33.23.43.13.02.72.61.91.92.1 m/s
Data source: Diamond Harbour December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Diamond Harbour Compares to Other Months

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

In comparing the weather between December and January, December tends to be warmer with average temperatures reaching up to 20°C (68°F) and a maximum of 30°C (87°F), while January slightly cools down with an average of 19°C (67°F) and maximums of 31°C (89°F). December also experiences more precipitation at 40 mm (1.6 in) over two days, compared to January's much drier conditions with only 7 mm (0.3 in) and no rainy days. Additionally, humidity drops from 69% in December to a more comfortable 55% in January, making the latter more pleasant for outdoor activities. For further details, you can check Diamond Harbour weather in January.

In December, the weather tends to be milder with average temperatures ranging from a minimum of 11°C (51°F) to a maximum of 30°C (87°F). The humidity is relatively high at 69%, and there is moderate precipitation of about 40 mm (1.6 in) over two days. In contrast, February experiences warmer temperatures, with an average of 23°C (73°F) and highs reaching 35°C (96°F). It also sees significantly less rainfall, with only 16 mm (0.6 in) falling on just one day, accompanied by much lower humidity at 45%. For more detailed insights on February weather, you can visit Diamond Harbour weather in February.

In December, Diamond Harbour experiences milder temperatures with a minimum of 11°C (51°F) and an average of 20°C (68°F), peaking at 30°C (87°F). The month typically sees only 40 mm (1.6 in) of precipitation over just 2 days, accompanied by a relatively high humidity of 69%. In contrast, March brings warmer weather, with minimum temperatures rising to 16°C (61°F) and an average of 27°C (81°F), reaching as high as 38°C (101°F). Precipitation increases slightly to 46 mm (1.8 in) but is spread over more days, totaling 6 days of rain, and the humidity drops significantly to 32%. For a more detailed look at the weather in March, check out Diamond Harbour weather in March.

In December, the weather is generally milder, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 30°C (87°F) and an average temperature of 20°C (68°F). Precipitation is relatively low, with only about 40 mm (1.6 in) over just 2 days and humidity sitting at 69%. In contrast, April brings significantly warmer temperatures, with lows around 20°C (69°F) and highs reaching up to 39°C (103°F), averaging 30°C (86°F). This month also experiences increased rainfall, totaling 76 mm (3.0 in) over 10 days, coupled with much lower humidity at 30%. For more specific insights into the weather during this month, you can check Diamond Harbour weather in April.

In December, the weather is generally mild, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 30°C (87°F) and an average of 20°C (68°F). The month experiences relatively low humidity at 69% and sees minimal precipitation, with only 40 mm (1.6 in) falling over just 2 days. In contrast, May brings significantly warmer temperatures, with a minimum of 22°C (72°F) and peaking at a scorching 39°C (103°F), averaging around 30°C (87°F). However, May also has higher humidity at 56% and much more rainfall, receiving 116 mm (4.6 in) over 12 days. For more details on the weather during this month, you can visit Diamond Harbour weather in May.

The weather in December is notably milder compared to June, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 30°C (87°F) and an average of 20°C (68°F). December experiences relatively low precipitation, with only 40 mm (1.6 in) over just 2 days, accompanied by a humidity level of 69%. In contrast, June is significantly warmer, with minimum temperatures starting at 25°C (78°F) and peaking at a scorching 40°C (104°F), averaging around 30°C (87°F). However, June brings much more rainfall, totalling 262 mm (10.3 in) over 24 days, though the humidity is slightly lower at 60%. For a detailed look at the weather specifics for June, you can check Diamond Harbour weather in June.

When comparing the weather in December and July, it's clear that there are significant differences. December offers a mild climate with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 30°C (87°F), and it experiences only 40 mm (1.6 in) of precipitation over just 2 days, along with a humidity level of 69%. In contrast, July brings much warmer conditions, with temperatures starting at a minimum of 26°C (79°F) and peaking at 36°C (98°F). The month sees heavy rainfall, accumulating 335 mm (13.2 in) over 29 days, and the humidity climbs to a steamy 84%. For a closer look at the specifics of July weather, you may refer to Diamond Harbour weather in July.

In December, the weather in Diamond Harbour is generally mild, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 30°C (87°F) and an average of around 20°C (68°F). With relatively low precipitation of 40 mm (1.6 in) over just two days and a humidity level of 69%, the month offers a comfortable climate for outdoor activities.

In contrast, August brings significantly warmer temperatures, with a minimum of 25°C (77°F) and a maximum reaching up to 36°C (97°F), averaging around 29°C (85°F). However, it also comes with high humidity at 86% and substantial rainfall totaling 356 mm (14.0 in) spread over the entire month. For those interested in the specifics of weather in August, further details can be found at Diamond Harbour weather in August.

In December, the weather is significantly cooler with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 30°C (87°F) and an average of 20°C (68°F). This month experiences relatively low precipitation, with only 40 mm (1.6 in) over just 2 days, along with a humidity level of 69%.

In contrast, September is much warmer, with a minimum temperature of 25°C (77°F), an average of 29°C (85°F), and a peak of 35°C (95°F). However, it also brings a considerable amount of rain, with 293 mm (11.5 in) falling over 27 days, resulting in higher humidity at 86%. This stark difference showcases December's drier and cooler climate compared to the wet and humid conditions of September. For more detailed information, you can check Diamond Harbour weather in September.

When comparing the weather in December to October, notable differences emerge. December enjoys milder temperatures, ranging from a minimum of 11°C (51°F) to a maximum of 30°C (87°F), with an average of 20°C (68°F). In contrast, October is significantly warmer, with temperatures ranging from 20°C (69°F) to a scorching 36°C (97°F) and an average of 28°C (83°F). Additionally, December experiences much less precipitation, with only 40 mm (1.6 in) over just 2 days, compared to October's substantial 183 mm (7.2 in) over 17 days. The humidity levels are also higher in October at 83%, compared to December's 69%. For more details about October weather, you can check Diamond Harbour weather in October.

In comparing the weather of December and November, December tends to be slightly cooler with a minimum temperature of 11°C (51°F) and an average of 20°C (68°F), while November has a higher minimum of 14°C (57°F) and an average of 24°C (76°F). The maximum temperatures in both months are also noteworthy, as November reaches up to 33°C (92°F) compared to December's peak of 30°C (87°F). Precipitation is less in December, with only 40 mm (1.6 in) over 2 days, in contrast to November's 64 mm (2.5 in) over 3 days. Humidity levels are relatively similar, with December at 69% and November slightly higher at 73%. For more detailed weather insights, you can check the Diamond Harbour weather in November.

Compare Diamond Harbour's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Diamond Harbour

In December, Diamond Harbour experiences a delightful transition into cooler weather, making it an ideal time for visitors. The temperatures are comfortably mild, with an average around 20°C and pleasant daytime highs reaching up to 30°C. Unlike the intense humidity of the summer months, December brings a refreshing atmosphere with a notable drop in humidity to 69%. Rainfall is minimal, with only a couple of wet days contributing to a typical precipitation amount of 40 mm, allowing ample opportunities to explore the scenic beauty of the region. For those interested in a deeper understanding of the local climate, visit Diamond Harbour Climate.