Last updated: August 21, 2025
December in Chennai, India, is characterized by mild and pleasant weather, with maximum temperatures reaching up to 30°C (87°F) and an average of 26°C (79°F). The minimum temperature hovers around 22°C (71°F), providing a comfortable environment for both residents and visitors. During this month, Chennai experiences approximately 109 mm (4.3 in) of rainfall over 10 days, contributing to a humidity level of 78% that enhances the tropical ambiance. While occasional showers can be expected, the overall climate remains inviting, making December an ideal time for outdoor activities and exploration in this vibrant city.
In December, Chennai experiences a transition into cooler weather, with temperatures reflecting a more temperate climate compared to the scorching summer months. The average temperature hovers around 26°C (79°F), providing a pleasant reprieve from the intense heat of May and June, where averages reach 31°C (88°F). As the year wraps up, nighttime lows dip to 22°C (71°F), while daytime highs remain comfortably warm at 30°C (87°F). This month marks a significant drop in maximum temperatures, heralding the onset of a more enjoyable outdoor experience, making it an ideal time for both locals and tourists to explore the vibrant culture and scenic beauty of Chennai.
In December, Chennai experiences a significant shift in its precipitation patterns, marking a crescendo in its monsoonal season. With 109 mm (4.3 in) of rainfall over 10 days, this month stands out as the tail end of the high-rainfall period that begins in June. Following November’s impressive deluge of 377 mm (14.9 in), December’s totals still reflect a healthy rain, solidifying its place among the wetter months of the year. Notably, the city transitions from the earlier months characterized by sparse rainfall; for instance, January and February collectively see a mere 42 mm across a handful of days. The steady precipitation in December not only supports the lush surroundings but also highlights a resilient ecological balance, providing a fitting conclusion to Chennai's vibrant monsoon season.
In Chennai, India, December marks a subtle shift in humidity, settling at 78%. This month transitions from the higher figures of the pre-monsoon season; since March, humidity levels have consistently hovered around or above 80%. Notably, while April and May experience peak humidity at 83%, the year closes with December showing a slight decline, yet remaining within the higher range typical of tropical climates. This seasonal pattern reflects Chennai's humid environment, where even the cooler end of the year maintains significant moisture in the air, offering a brief respite yet still adhering to the overall tropical character.
As December rolls in, Chennai experiences a UV Index of 9, categorizing the exposure as very high and suggesting a burn time of just 15 minutes for those unprotected. Notably, this slight decrease from the extreme levels seen throughout the summer months—including highs of 14 in April—indicates a transition towards safer UV exposure at the year's end. However, caution is still essential, as the consistent patterns of high UV levels from earlier months linger in memory, reminding us that even in December, skin protection remains crucial. For more detailed insights on UV exposure, visit Chennai UV Index.
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In December, Chennai basks in a pleasant 303 hours of sunshine, wrapping up the year with a warm embrace that sets it apart from the preceding months. This month showcases a notable decrease compared to the sun-drenched days of March and May, which boast over 340 hours, but it remains a splendid time for outdoor activities. After November's dip to 265 hours, December's glow signifies a return to brightness, reinforcing the city's status as a sun-loving locale. As the year closes, the sunshine in Chennai serves as a reminder of the vibrant climate that attracts visitors and locals alike to enjoy the city's rich culture under its brilliant rays.
In December, Chennai experiences a 58% chance of sunny weather, offering a pleasant respite from the heavy rainfall of the preceding months. As the year draws to a close, the likelihood of sun is notably higher compared to the wet and gloomy conditions of July and August, which see chances plummet to 18% and 20%, respectively. While November marks a dip with only a 12% likelihood of sunny days, December signals a shift towards more favorable weather as it aligns closely with the sunnier months of March and April. This trend suggests that while the potential for cloud cover still exists, December brings a brighter outlook, inviting residents and visitors alike to enjoy the city's charm under the warm sun.
In Chennai, India, the daylight duration shows a relatively stable pattern throughout the year. The shortest days occur in January, February, October, and November, with about 11 hours of daylight, creating a cozy ambiance during the cooler months. As the year progresses into March and the summer months, daylight extends to 12 hours, reflecting the longer days associated with warmer weather. This trend in daylight is consistent through the monsoon season, lasting from April through September, before tapering back to 11 hours in December. Overall, Chennai experiences a balanced and predictable rhythm of daylight that enhances its vibrant landscape throughout the year.
In December, the average wind speed in Chennai settles at a steady 3.5 m/s (8 mph), mirroring the conditions of January and August. This consistency signifies a transition from the brisk winds of late monsoons to calmer days as the year draws to a close. While the wind speeds have fluctuated throughout the year, peaking in May and June around 4.1 m/s to 4.2 m/s (9 mph), December's gentle breezes provide a refreshing reprieve from the heat, making it an inviting time to enjoy outdoor activities. As the winds gradually soften from their peak, they create a pleasant ambiance that embodies the charm of Chennai's winter.
Weather in Chennai varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Chennai, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather tends to be warmer and somewhat wetter than in January, with average temperatures ranging from a minimum of 22°C (71°F) to a maximum of 30°C (87°F) and a total precipitation of 109 mm (4.3 in) over about 10 days. In contrast, January experiences slightly cooler temperatures, with a minimum of 20°C (68°F) and an average of 25°C (78°F), alongside significantly reduced rainfall of just 32 mm (1.3 in) over about 5 days. Humidity levels are also marginally lower in January at 76%, compared to December's 78%. For more detailed information on January weather in Chennai, you can visit Chennai weather in January.
December and February both experience warm temperatures, with average highs around 26°C (79°F). However, December tends to be slightly cooler, with a minimum temperature of 22°C (71°F) compared to February's 20°C (68°F). February sees an increase in maximum temperatures, reaching 31°C (88°F), while December's maximum is 30°C (87°F). Additionally, February is much drier, receiving only 10 mm (0.4 in) of precipitation over just one day, whereas December has 109 mm (4.3 in) spread over ten days. Humidity levels are similar, with December at 78% and February at 76%. For more detailed weather information, you can refer to Chennai weather in February.
In December, the weather tends to be warm and humid, with temperatures ranging from a minimum of 22°C (71°F) to an average of 26°C (79°F), reaching a maximum of 30°C (87°F). This month experiences a significant amount of rainfall, with around 109 mm (4.3 in) over approximately 10 days, contributing to a humidity level of 78%.
In contrast, March is slightly warmer overall, boasting an average temperature that rises to 28°C (83°F) and highs that can reach up to 35°C (95°F). However, the precipitation drops dramatically to just 6 mm (0.2 in) over only 1 day, leading to a marginally higher humidity level of 81%.
For more detailed information about the weather in March, visit Chennai weather in March.
December and April in Chennai showcase distinct weather patterns. In December, temperatures range from a minimum of 22°C (71°F) to a maximum of 30°C (87°F), with an average of 26°C (79°F). This month experiences about 109 mm (4.3 in) of precipitation over 10 days, resulting in a relatively humid atmosphere at 78%. In contrast, April sees warmer temperatures, with a minimum of 25°C (78°F) and a maximum of 35°C (96°F), averaging 30°C (86°F). Remarkably, April is much drier, receiving only 8 mm (0.3 in) of rainfall across just one day, though humidity remains slightly higher at 83%. For more detailed information, check out Chennai weather in April.
In December, the weather is characterized by milder temperatures, with a minimum of 22°C (71°F) and an average of 26°C (79°F), peaking at 30°C (87°F). This month also experiences notable rainfall, with 109 mm (4.3 in) of precipitation spread over 10 days, and a humidity level of 78%. In contrast, May sees significantly warmer temperatures, with a minimum of 26°C (78°F) and an average of 31°C (88°F), reaching as high as 38°C (100°F). Precipitation dramatically decreases in May, with only 13 mm (0.5 in) over just 3 days, although humidity rises slightly to 83%. For more details, check out Chennai weather in May.
December and June in Chennai exhibit distinct weather patterns. December features milder temperatures, with a minimum of 22°C (71°F) and an average of 26°C (79°F), while June experiences hotter conditions, with a minimum of 26°C (80°F) and an average of 31°C (88°F). Although December sees significantly more rainfall, averaging 109 mm (4.3 in) over 10 days, June also brings its share of precipitation with 64 mm (2.5 in) across 12 days. Humidity levels improve slightly in June, reaching 81%, compared to 78% in December. For more detailed insights, check out Chennai weather in June.
In December, the weather is generally warm with temperatures ranging from a minimum of 22°C (71°F) to a maximum of 30°C (87°F), and an average temperature of 26°C (79°F). The month sees about 109 mm (4.3 in) of precipitation over approximately 10 days, with a humidity level around 78%. In contrast, July is hotter, with temperatures starting at a minimum of 26°C (79°F) and climbing to a maximum of 36°C (97°F), averaging 30°C (86°F). The rainfall is slightly less, at 107 mm (4.2 in), but it occurs over more days, totaling around 16 days, with humidity slightly higher at 80%. This comparison illustrates how December offers slightly cooler temperatures and less frequent rain, while July brings more heat and extended wet periods. For more details on July weather, you can visit Chennai weather in July.
In comparing the weather between December and August, December tends to be slightly cooler with a minimum temperature of 22°C (71°F) and an average of 26°C (79°F), while August experiences warmer conditions with a minimum of 26°C (79°F) and an average of 29°C (85°F). Although both months see significant rainfall, August has a higher total precipitation of 125 mm (4.9 in) spread over 19 days compared to December's 109 mm (4.3 in) over 10 days. Humidity levels are also higher in August at 82%, compared to December's 78%. For more detailed insights, you can explore Chennai weather in August.
In comparing the weather of December and September, December presents slightly milder temperatures, with a minimum of 22°C (71°F) and an average of 26°C (79°F), while September features warmer conditions, starting at a minimum of 25°C (77°F) and averaging 29°C (84°F). The maximum temperature in December peaks at 30°C (87°F), compared to September's higher maximum of 34°C (93°F). Precipitation is also notable in both months, with December receiving 109 mm (4.3 in) over 10 days and September experiencing a bit more rain at 126 mm (5.0 in) across 19 days. Humidity levels are slightly higher in September at 81%, compared to December’s 78%. For a more detailed look at September's weather, check out Chennai weather in September.
In comparing the weather of December and October, several key differences emerge. December generally features a milder temperature range, with minimums around 22°C (71°F) and maximums reaching 30°C (87°F), while October experiences slightly warmer temperatures, with a minimum of 24°C (76°F) and a maximum of 33°C (93°F). Additionally, October tends to be wetter, with a substantial 169 mm (6.7 in) of precipitation over 21 days compared to December's 109 mm (4.3 in) over just 10 days. Humidity levels remain comparable, hovering around 78% in December and 79% in October. For more detailed information, you can check Chennai weather in October.
In comparing the weather of December and November, December showcases slightly cooler temperatures, with an average range of 22°C to 30°C (71°F to 87°F), compared to November's warmer temperatures of 23°C to 32°C (74°F to 90°F). Additionally, December experiences significantly less precipitation, with 109 mm (4.3 in) over 10 days, while November sees much heavier rainfall at 377 mm (14.9 in) across 20 days. Humidity levels remain relatively high in both months, with December at 78% and November at 80%. For more details on the weather in November, you can check out Chennai weather in November.
As December arrives in Chennai, the weather showcases a delightful shift, presenting slightly cooler temperatures that invite relief from the intense heat of the preceding months. With an average temperature around 26°C (79°F), the city experiences a refreshing dip compared to the hotter parts of the year. Humidity remains relatively high at 78%, but the increased precipitation—occurring over about 10 days—adds a touch of seasonal charm. This month stands out for its balance of warmth and moisture, making it an excellent time to explore the city's vibrant culture. For a deeper understanding of Chennai's climate throughout the year, visit Chennai Climate.