Last updated: August 21, 2025
In August, Chennai experiences a tropical monsoon climate, with temperatures typically reaching a maximum of 35°C (95°F) and averaging around 29°C (85°F). The month is characterized by high humidity levels averaging 82%, contributing to a mugginess that permeates the air. Rainfall is prevalent, with a total of approximately 125 mm (4.9 in) over 19 days, providing relief from the heat but also creating a vibrant backdrop of lush greenery across the city. Visitors can expect a mix of sunny spells interspersed with periodic downpours, making it an ideal time to witness Chennai’s lively and colorful atmosphere during the monsoon.
In August, Chennai experiences warm and humid conditions typical of the monsoon season. The minimum temperature hovers around a comfortable 26°C (79°F), while the average settles at 29°C (85°F), providing a slightly cooler respite from the searing heat of earlier months. With a maximum temperature peaking at 35°C (95°F), it reflects a gradual decline compared to the sweltering highs of summer, particularly May and June. This transitional month often brings sporadic rains, contributing to the city's lush greenery, while the temperatures remain significantly warmer than the start of the year. Overall, August offers a blend of warmth and moisture, creating a vibrant atmosphere in the bustling coastal city.
August marks a significant peak in precipitation for Chennai, India, as the city receives 125 mm (4.9 in) of rain over 19 days, making it one of the wettest months of the year. This sharp increase follows the earlier monsoon months of June and July, which also bring substantial rainfall, with July experiencing 107 mm (4.2 in). Notably, the trend suggests a gradual build-up in precipitation from the relatively dry early months, as January starts off with just 32 mm (1.3 in) spread over five days. As the monsoon intensifies, August stands out as a critical period for replenishing water resources, with rainfall nearing the levels recorded in September and October. This pattern not only underscores the monsoon's vital role in Chennai's climate but also highlights the potential for varying rainfall distribution, which peaks just as the city approaches the height of its rainy season.
In August, Chennai experiences a humidity level of 82%, marking a slight increase from the previous month's 80%. This uptick is reflective of the city's transition through the summer months, where humidity levels typically rise, peaking in April and May at 83%. Following this peak, the humidity consistently decreases as the year progresses into September and October. Overall, Chennai's climate exhibits a pattern of high humidity, with levels typically hovering in the low to mid-80s% during the sweltering summer months, before gradually subsiding as the cooler seasons approach. This trend underscores the city’s characteristic tropical climate, presenting a warm and humid atmosphere year-round.
In August, Chennai experiences a consistently high UV Index of 13, falling in the extreme exposure category. With a burn time of just 10 minutes, it's crucial for residents and visitors alike to take precautions against the sun's rays. This level of UV exposure is part of a pattern that begins in February and sustains throughout the summer, peaking in April. Notably, the trend of extreme UV levels continues into September, illustrating Chennai's vibrant yet intense tropical climate. To learn more about how to protect yourself during these high UV Index days, check out the details at Chennai UV Index.
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In August, Chennai continues to bask in a generous share of sunlight, recording 301 hours of glorious rays. This month reflects a slight downturn from the sun-soaked days of May and April, which peak at over 350 hours. However, August maintains a healthy glow compared to the earlier months of the year, showcasing a remarkable consistency in sunny weather. After the rainy spells of June and July, with their reduced sunshine hours, the return of bright days in August signals a reassuring transition. As summer begins to wane, the vibrant skies foresee a gradual shift, yet the city remains generously illuminated, offering a warm welcome to the approaching fall months, particularly as September follows closely with 293 hours of sunshine.
In Chennai, the likelihood of sunny weather takes a notable dip in August, with only a 20% chance of sunshine, making it one of the cloudier months of the year. This trend continues from the preceding months of June and July, which see even lower probabilities of sun at 24% and 18%, respectively. Interestingly, this marks a sharp contrast to the sunnier spells of January through May, where the chances typically hover between 39% and 70%. As the monsoon season approaches its peak, August's gloomy forecast is a reminder of the city's transition from dry towards wet conditions, culminating in a significant drop in sunlight that many residents have come to expect.
In Chennai, India, August brings a consistent 12 hours of daylight, mirroring a trend that begins in March and continues through to September. This period of extended daylight not only enhances the vibrancy of the city's life but also provides ample opportunities for exploration and outdoor activities. Following a gradual increase from the short days of January and February, the daylight duration stabilizes at this generous length, fostering an inviting environment during the peak of summer. As the year progresses towards the cooler months of October to December, daylight begins to dwindle once more, but the 12-hour stretch in August serves as a reminder of Chennai's tropical charm and the beauty of its sunlit days.
In August, Chennai experiences a gentle breeze with an average wind speed of 3.5 m/s (8 mph), reminiscent of the smooth winds seen in both January and April. This month marks a slight dip from the peak wind speeds observed in the preceding summer months of May and June, where the winds picked up to around 4.1 to 4.2 m/s. Notably, August's consistent wind speed aligns with the pattern of September, suggesting that this coastal city enjoys a relatively stable breeze as it transitions from the summer season. This moderate airflow is a welcoming reprieve amid the city's humidity, making August an enjoyable time for outdoor activities and strolls along the beach.
Weather in Chennai varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Chennai, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between August and January, it is evident that August tends to be much warmer and more humid. The temperatures in August range from a minimum of 26°C (79°F) to a maximum of 35°C (95°F), with an average of 29°C (85°F). This month also experiences significant rainfall, totaling 125 mm (4.9 in) over about 19 days, leading to an average humidity of 82%.
In contrast, January boasts milder temperatures, with a minimum of 20°C (68°F), an average of 25°C (78°F), and a maximum of 30°C (86°F). Rainfall in January is considerably lower at 32 mm (1.3 in) occurring over just 5 days, and the humidity is slightly less at 76%. For more detailed insights on January weather, you can check Chennai weather in January.
August and February present contrasting weather experiences. In August, temperatures range from a minimum of 26°C (79°F) to a maximum of 35°C (95°F), with an average of 29°C (85°F), accompanied by high humidity levels of 82%. The month is also marked by significant precipitation, with 125 mm (4.9 in) of rainfall over 19 days. In contrast, February features a milder climate, with temperatures fluctuating from a low of 20°C (68°F) to a high of 31°C (88°F) and an average of 26°C (79°F). This month sees minimal rainfall, totaling just 10 mm (0.4 in) over a single day, and slightly lower humidity at 76%. For more detailed insights, check out Chennai weather in February.
When comparing the weather in August and March, August tends to be hotter and much more humid. In August, the temperature ranges from a minimum of 26°C (79°F) to an average of 29°C (85°F), reaching a maximum of 35°C (95°F). The month is characterized by high precipitation, totaling 125 mm (4.9 in) over 19 days, which contributes to the humidity level of 82%. In contrast, March has slightly cooler temperatures, with a minimum of 22°C (72°F), an average of 28°C (83°F), and still reaching up to 35°C (95°F). Rainfall in March is minimal at only 6 mm (0.2 in) across just 1 day, while humidity remains relatively low at 81%. For more detailed information, you can check Chennai weather in March.
When comparing the weather in August and April, we find some intriguing contrasts. Both months feature similar high temperatures, with averages peaking at around 29°C (85°F) in August and 30°C (86°F) in April. However, April tends to be drier, receiving just 8 mm (0.3 in) of precipitation over one day, while August experiences significantly higher rainfall of 125 mm (4.9 in) spread across 19 days, indicating a much wetter climate during this latter month. Additionally, humidity levels are quite comparable, with August at 82% and April slightly higher at 83%. For more detailed insights into April weather, check out Chennai weather in April.
August and May present contrasting weather patterns in terms of temperature and precipitation. In May, the average temperature is slightly higher at 31°C (88°F), with a maximum of 38°C (100°F), compared to August's average of 29°C (85°F) and a maximum of 35°C (95°F). Additionally, May experiences far less rainfall, with only 13 mm (0.5 in) across just 3 days, while August sees significantly more rainfall, totaling 125 mm (4.9 in) over 19 days. Humidity levels remain relatively similar, with 82% in August and 83% in May. For a more detailed look at weather conditions specific to May, you can check Chennai weather in May.
When comparing the weather in June and August, both months experience warm temperatures, but August is generally cooler with average temperatures around 29°C (85°F) compared to June's 31°C (88°F). June records higher maximum temperatures, reaching up to 37°C (99°F), while August peaks at 35°C (95°F). Precipitation levels are significantly higher in August, with 125 mm (4.9 in) over 19 days, compared to June's 64 mm (2.5 in) over 12 days. Humidity remains relatively similar, with June at 81% and August slightly higher at 82%. For more detailed information on June weather, you can refer to Chennai weather in June.
In comparing the weather of August and July, we see that both months have similar minimum temperatures, with August maintaining a steady low of 26°C (79°F). However, July boasts a slightly higher average temperature of 30°C (86°F) compared to August’s 29°C (85°F), while also recording a peak of 36°C (97°F), which is slightly warmer than August’s maximum of 35°C (95°F). Precipitation levels are higher in August, with 125 mm (4.9 in) spread over 19 days, compared to July's 107 mm (4.2 in) over 16 days. Additionally, August sees a slightly higher humidity level at 82%, compared to July's 80%. For more detailed insights, you can visit Chennai weather in July.
In August, the weather typically features a minimum temperature of 26°C (79°F) and averages around 29°C (85°F), reaching a maximum of 35°C (95°F). The month is characterized by significant precipitation, with about 125 mm (4.9 in) of rainfall occurring over 19 days and humidity levels hovering around 82%.
Conversely, September sees slightly cooler conditions, with minimum temperatures dropping to 25°C (77°F) and an average temperature of 29°C (84°F), peaking at 34°C (93°F). The precipitation level remains nearly the same at 126 mm (5.0 in) over the same number of rainy days, but humidity is marginally lower at 81%. For more detailed information, you can check Chennai weather in September.
August and October exhibit notable differences in weather patterns. In August, the temperatures range from a minimum of 26°C (79°F) to a maximum of 35°C (95°F), with an average of 29°C (85°F). The month experiences significant rainfall, totaling 125 mm (4.9 in) over 19 rainy days and a humidity level of 82%.
In contrast, October is slightly cooler, with temperatures dipping to a minimum of 24°C (76°F) and peaking at 33°C (93°F), averaging 28°C (83°F). However, it records even higher rainfall, with 169 mm (6.7 in) spread across 21 days and humidity levels at 79%. For a more detailed look at October weather, check this link: Chennai weather in October.
In August, temperatures typically range from a minimum of 26°C (79°F) to a maximum of 35°C (95°F), with an average of 29°C (85°F). The month also sees about 125 mm (4.9 in) of rainfall spread over 19 days, accompanied by elevated humidity levels of 82%. In contrast, November experiences slightly cooler temperatures, with a minimum of 23°C (74°F), an average of 27°C (81°F), and a maximum of 32°C (90°F). However, the month is marked by significantly higher precipitation, totaling 377 mm (14.9 in) over 20 days, while maintaining a humidity of 80%. The comparison highlights how November tends to be wetter and more moderate in temperature compared to the hot and humid days of August. For more detailed insights, you can check Chennai weather in November.
August and December present contrasting weather patterns. In August, temperatures hover between a minimum of 26°C (79°F) and a maximum of 35°C (95°F), with an average temperature of 29°C (85°F). The month is characterized by high humidity at 82% and significant rainfall, receiving about 125 mm (4.9 in) over 19 days.
In contrast, December experiences milder conditions with temperatures ranging from a minimum of 22°C (71°F) to a maximum of 30°C (87°F), and an average of 26°C (79°F). The month sees slightly less rainfall, totaling 109 mm (4.3 in) over only 10 days, accompanied by a slightly lower humidity level of 78%. For more detailed information, you can visit Chennai weather in December.
As August unfolds in Chennai, it brings a shift from the sweltering summer heat, with more comfortable averages settling in around 29°C (85°F). The city experiences increased rainfall, accumulating about 125 mm (4.9 inches) over 19 days, which adds to the humidity levels that hover around a sticky 82%. Unlike the drier months preceding it, August makes for a significant transition, creating a lush, vibrant backdrop against the city's lively culture. This combination of warmth and moisture nurtures a unique atmosphere, making it an intriguing month to explore Chennai. For those looking to delve deeper into the city's climate dynamics, visit Chennai Climate.