December Weather in Mettur, India

Last updated: August 21, 2025

December in Mettur, India showcases a temperate climate, with maximum temperatures reaching 33°C (91°F) and an average of 25°C (77°F). The minimum recorded temperature dips to a pleasant 19°C (66°F), making it a comfortable month for outdoor activities. Despite the warmth, December also brings precipitation, with a total of 64 mm (2.5 in) spread across 8 days, contributing to the region's lush greenery. The humidity hovers at a significant 83%, adding to the overall atmosphere of the month, making Mettur a vibrant destination during this time of year.

December Temperature in Mettur

In Mettur, India, December marks a transition into the cooler months, with temperatures averaging a comfortable 25°C (77°F). The month starts with minimums around 19°C (66°F), making it one of the season's cooler periods, while daytime highs can still reach 33°C (91°F). As the year draws to a close, the weather becomes more pleasant, providing a welcome relief from the hotter preceding months. This trend of decreasing temperatures from the sweltering summer peaks highlights December as a time for outdoor activities, enjoying the mild climate before the intense heat returns in January and February.

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

The chart illustrates December temperature patterns in Mettur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mettur, 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).
JanFebMarAprMayJunJulAugSepOctNovDec767983868683828181807876
Data source: Temperature data for Mettur generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Mettur

In December, Mettur, India experiences a notable decline in precipitation, with 64 mm (2.5 in) recorded over 8 days, marking a shift from the heavier rains of previous months. This decrease can be observed as the region transitions from the monsoon season into the cooler, drier winter period. The rainfall pattern showcases a gradual tapering, following the peak levels of 185 mm in September and consistently high figures into November. December's precipitation serves as a reminder of the lingering monsoon effects while paving the way for the drier months ahead, creating a transitional climatic rhythm in Mettur's weather tapestry.

December Precipitation Trends in Mettur

The chart displays monthly precipitation patterns in Mettur, 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 Mettur, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec22813208210711913318517113464
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mettur

In Mettur, India, December experiences a significant drop in humidity from the preceding months, settling at 83%. This figure follows a notable rise during the late monsoon months of October and November, where humidity peaked at 87% and 88%, respectively. After a relatively dry April and May, where humidity levels dipped to the mid-50s, the onset of the monsoon brings a surge in moisture, culminating in the higher levels seen in the later months. As the year progresses, December reflects a slight decrease from November's humidity, yet it remains notably high, indicating the lingering effects of the wet season. This trend suggests a gradual transition into the drier months ahead, marking an interesting end to the year's climatic profile.

December Average Humidity in Mettur

This chart illustrates the average monthly humidity levels in Mettur, 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 Mettur is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%62%57%56%64%71%64%69%76%87%88%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mettur

In December, Mettur, India, experiences a slight decrease in UV Index, registering at 9, placing it in the very high exposure category, with a burn time of approximately 15 minutes. This marks a subtle shift from the intense UV levels seen in the preceding months, where indices peaked at 14 in August and April. The trend indicates a gradual reduction in UV intensity as the year concludes, yet caution is still advised during sun exposure. With January expected to start at 10, it seems that while December brings some relief, protective measures remain essential. For more information on UV levels throughout the year, visit Mettur UV Index.

Maximum UV Index Levels in Mettur for December

The chart shows the monthly maximum UV Index (UVI) for Mettur 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 Mettur typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121314121213141312109
Data source: Mettur 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 Mettur

December in Mettur, India, sees a delightful 301 hours of sunshine, a fitting conclusion to a year marked by a steady influx of sunlight. As the year transitions from the scorching summer months of May and June, which both boast impressive totals of 344 and 316 hours respectively, there’s a noticeable decline in daylight as one moves into the cooler months. The gradual drop continues through the rainy season, with August and September showing 300 and 294 hours, highlighting the resilience of sunshine amidst the monsoon. Interestingly, the sunlight hours in December comfortably surpass those of the preceding months, including the relatively less sunny November at 272 hours, ensuring that residents can bask in the warmth of winter while enjoying the crisp air. Overall, December’s sunshine serves as a gentle reminder that even as the year wanes, the vibrancy of Mettur’s climate remains steadfast.

Monthly Sunshine Duration in Mettur: December Highlighted

The December sunshine duration represents the total number of hours Mettur 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.
JanFebMarAprMayJunJulAugSepOctNovDec265h309h344h334h344h316h312h300h294h293h272h301h
Data source: Mettur December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mettur During December

In Mettur, India, December brings a 60% chance of sunny weather, marking a notable improvement compared to the preceding months. After a significant drop in sunshine during the monsoon season, where the likelihood plummets to as low as 6% in November, December emerges as a promising month for sun-seekers. This trend suggests a transition towards drier conditions, with the sunshine probability steadily increasing from early winter to late fall, providing a refreshing contrast to the preceding rain-soaked months. While not as bright as the sunniest months like March at 77%, December offers a delightful balance of sun-filled days, inviting residents and visitors to enjoy the mild winter climate.

Percentage of Sunny Days in December in Mettur

The chart illustrates the percentage of sunny days in Mettur 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 Mettur experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec33%69%77%45%30%15%13%11%14%14%6%60%
Data source: Mettur December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mettur in December

In Mettur, India, the rhythm of daylight duration reveals a captivating pattern throughout the year. Starting with 11 hours of daylight in January and February, the days begin to stretch as spring approaches, peaking at 12 hours from March to August, when the sun lingers to embrace the vibrant summer months. As the year winds down, daylight retreats gradually, returning to 11 hours in October, November, and December, marking the onset of winter. This fluctuation not only highlights the region’s climatic transitions but also sets a scenic backdrop for the changing seasons, allowing the residents to experience a harmonious dance of light throughout the year.

Average Daylight Hours in Mettur for December

The chart illustrates the variation in daylight duration in Mettur throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 30m11h 44m12h 3m12h 22m12h 39m12h 47m12h 43m12h 29m12h 10m11h 50m11h 34m11h 26m
Data source: Mettur daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Mettur

In Mettur, India, December brings a gentle breeze, with an average wind speed of 1.5 m/s (3 mph). This month marks the conclusion of a year where wind speeds have fluctuated slightly, peaking at 1.9 m/s (4 mph) in July. Overall, the wind tends to be mild throughout the year, with the highest averages appearing during the monsoon months of June and July. As December settles in, the cooler temperatures and calm winds provide a serene backdrop, inviting locals and visitors alike to enjoy the tranquil atmosphere before the new year begins. The steady, low winds of this month echo the quiet transition from the vibrant summer to the more subdued winter, showcasing Mettur's unique climatic rhythm.

Average December Wind Speed in Mettur

The chart displays monthly wind speed patterns in Mettur, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.71.61.31.61.81.91.71.51.11.21.5 m/s
Data source: Mettur December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Mettur Compares to Other Months

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

December and January both feature warm temperatures, but January tends to be slightly cooler overall. In December, the minimum temperature is 19°C (66°F) and the max can reach 33°C (91°F), while January has a lower minimum of 17°C (64°F) and a maximum of 32°C (91°F). Precipitation also differs significantly between the two months, with December experiencing 64 mm (2.5 in) of rain over 8 days, compared to January's much lighter rainfall of 22 mm (0.9 in) over just 4 days. Additionally, January enjoys lower humidity at 72%, compared to December's higher level of 83%. For those interested in more detailed insights, check out Mettur weather in January.

December and February showcase notable contrasts in weather patterns. In December, temperatures range from a minimum of 19°C (66°F) to a maximum of 33°C (91°F), with an average of 25°C (77°F). The month experiences higher humidity at 83% and substantial rainfall of 64 mm (2.5 in) over 8 days. In contrast, February offers slightly cooler nights with a minimum of 17°C (63°F) and higher daytime temperatures, peaking at 36°C (97°F) with an average of 26°C (79°F). February is significantly drier, featuring only 8 mm (0.3 in) of rain over just one day and a decrease in humidity to 62%. For more detailed insights into February weather, you can explore Mettur weather in February.

In December, the weather is characterized by milder temperatures, with averages around 25°C (77°F) and maximums reaching 33°C (91°F). The humidity is notably high at 83%, and there is a moderate amount of precipitation, totaling 64 mm (2.5 in) over about 8 days. In contrast, March experiences significantly warmer conditions, with average temperatures soaring to 29°C (84°F) and maximums peaking at a sizzling 38°C (100°F). Precipitation decreases sharply to just 13 mm (0.5 in) over only 3 days, and humidity drops to a more comfortable 57%. For more details on the weather specifics in March, you can check Mettur weather in March.

In December, the weather is typically warm with minimum temperatures around 19°C (66°F), averaging 25°C (77°F), and peaking at 33°C (91°F). This month experiences about 64 mm (2.5 in) of rainfall over approximately 8 days, accompanied by a high humidity level of 83%. In contrast, April is even hotter, with minimum temperatures rising to 23°C (74°F) and an average of 30°C (87°F), reaching maxima of 39°C (102°F). The precipitation decreases significantly to 20 mm (0.8 in) over just 4 days, and the humidity drops to a more comfortable 56%. For those interested in exploring the specific weather conditions during this month, more details can be found here: Mettur weather in April.

In December, the weather tends to be warm with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 33°C (91°F), averaging around 25°C (77°F). Humidity levels are relatively high at 83%, and the month experiences about 64 mm of precipitation over 8 days. In contrast, May sees even higher temperatures, with a minimum of 22°C (72°F) and a maximum reaching up to 39°C (103°F), averaging 30°C (86°F). However, the humidity drops to 64%, though precipitation increases to 82 mm spread across 14 days. For a detailed look at weather specifics in May, you can check Mettur weather in May.

December and June present contrasting weather experiences. In December, temperatures range from a mild 19°C (66°F) to a warm 33°C (91°F), with an average of 25°C (77°F). The month sees significant humidity at 83% and some rainfall, accumulating to 64 mm (2.5 in) over about 8 days. In stark contrast, June experiences hotter conditions, with temperatures reaching a minimum of 23°C (74°F) and peaking at 37°C (100°F), averaging 28°C (83°F). The precipitation in June is notably higher, totaling 107 mm (4.2 in) spread across 19 days, though the humidity is relatively lower at 71%. For more specific insights about Mettur's weather patterns in June, you can refer to Mettur weather in June.

In December, the weather is generally milder, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 33°C (91°F), providing an average of 25°C (77°F). The month sees around 64 mm (2.5 inches) of precipitation across eight days, and humidity levels are quite high at 83%. In contrast, July experiences warmer temperatures, with a minimum of 23°C (74°F) and a maximum reaching 36°C (98°F), averaging at 28°C (82°F). This month is also wetter, with precipitation totaling 119 mm (4.7 inches) over 18 days and lower humidity at 64%. These variations highlight the dramatic differences in weather between these two months. For more detailed insights on July weather, you can check Mettur weather in July.

In comparing the weather between December and August, we can see notable differences in temperature and precipitation. December typically has a milder temperature range, with a minimum of 19°C (66°F) and a maximum of 33°C (91°F), averaging 25°C (77°F). In contrast, August experiences warmer conditions, with a minimum of 23°C (73°F) and a maximum of 36°C (97°F), averaging 27°C (81°F).

Humidity is higher in December at 83%, compared to 69% in August, suggesting a more humid atmosphere during the final month of the year. Additionally, December sees less precipitation, with only 64 mm (2.5 in) over 8 days, while August has significantly more rainfall at 133 mm (5.2 in) over 20 days. For more details on August weather, you can refer to this link: Mettur weather in August.

In comparing the weather between December and September, December tends to be slightly cooler with average temperatures ranging from a minimum of 19°C (66°F) to a maximum of 33°C (91°F), while September has higher temperatures with a minimum of 22°C (72°F) and a maximum reaching 35°C (96°F). December experiences significantly less rainfall, with only 64 mm (2.5 in) over about 8 days, compared to September's 185 mm (7.3 in) spread over 21 days. Humidity levels are higher in December at 83%, compared to 76% in September, making the latter feel a bit drier despite the increased precipitation. For a more detailed look at September weather, you can refer to Mettur weather in September.

When comparing the weather in December and October, we see notable differences in both temperature and precipitation. December has a slightly milder temperature range with minimums around 19°C (66°F) and maximums reaching 33°C (91°F), averaging at 25°C (77°F). In contrast, October is warmer, with temperatures starting at a minimum of 20°C (69°F) and peaking at 34°C (93°F), averaging 27°C (80°F). However, October is significantly wetter, receiving 171 mm (6.7 in) of rainfall over 21 days, while December sees only 64 mm (2.5 in) over 8 days. Humidity levels are also higher in October at 87%, compared to December's 83%. For more details on October's weather, you can visit Mettur weather in October.

In comparison to November, December experiences slightly lower average temperatures, with daily minimums remaining the same at 19°C (66°F) but averaging 25°C (77°F) compared to November's 26°C (79°F). Both months reach similar maximum temperatures of around 33°C (91°F) to 92°F, but December is characterized by significantly less precipitation, with 64 mm (2.5 in) over 8 days, compared to November's 134 mm (5.3 in) spread over 17 days. Humidity also sees a drop in December, averaging 83% versus November's higher 88%. For more detailed insights, you can check Mettur weather in November.

Compare Mettur's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Mettur

As December rolls in, Mettur experiences a delightful shift in weather compared to the preceding months. The temperatures remain comfortably warm, with an average around 25°C (77°F), while the humidity levels soar to a notable 83%. This combination creates a unique atmosphere that feels both refreshing and invigorating. Additionally, December sees about 8 days of rainfall, contributing to a moderate precipitation total of 64 mm (2.5 in), making it one of the wetter months of the year. Overall, December offers a pleasant respite from the hotter days of summer, ideal for both locals and visitors alike. For more insights into Mettur's climate throughout the year, check out Mettur Climate.