Weather in Chennai in August 2025
Average weather
Average temperature in Chennai in August
Going from a maximum of +93°F during the day to a minimum of +79°F during the night, the temperature in August averages around +90°F.
The average maximum temperature goes down 25% by the end of the month, compared with the beginning of the month, from +91°F to +88°F.
Is Chennai warm or cold in August?
Chennai is typically hot in August.
Maximum temperatures go up compared to the previous month from +90°F to +90°F. The minimum temperature also goes down from +82°F to +81°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
August is one of the warmest months in Chennai, here is the comparison with other months:
Climate in Chennai in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +90°F | +90°F | +88°F | ||||
| Min. temperature | ||||||
| +77°F | +75°F | +73°F | ||||
| Max. temperature | ||||||
| +102°F | +100°F | +97°F | ||||
| Rainfall | ||||||
| 71 mm | 85 mm | 99 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 71% | 74% | 78% | ||||
| Air pressure | ||||||
| 1004 HPa | 1005 HPa | 1006 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 9 | 9 | 7 | ||||
| Rainy days | ||||||
| 18 | 16 | 16 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. The temperature levels stay the same in the area of +90°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 71 mm to 85 mm. Humidity rises from 71% to 74%. Winds are calmer in comparison to July, going down from 3 m/s to 2 m/s on average. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
Next month (September) brings a further decline in the weather.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Chennai is gradually decreasing during August, going from 4 m/s to 3 m/s over the course of the month.
Rain
How was the weather last August in Chennai?
Climate Change Over the Years
The climate in Chennai in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1989 (+85°F) and the highest in 2019 (+91°F). The driest year was 1982 with only 445 mm of rainfall, and the wettest year was 1996 with 1545 mm.
FAQ
Is August a good time to visit Chennai?
Can you sunbathe in Chennai in August?
Is Chennai rainy in August?
Is it sunny in Chennai in August?
Other cities in India
Monthly weather in Chennai
Source of the data
For this page, we’ve looked at the typical weather in Chennai, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.