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Weather in Chennai for September 2025

Your guide to Chennai weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Chennai has been nearly identical to the historical average, with a temperature of 32.5 °C (showing only a slight deviation of -0.1 °C).

  • The forecast for the next days in Chennai predicts temperatures to be around 32 °C, close to the historical average.

  • In general, the average temperature in Chennai at the beginning of September is 32.4 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 32 °C by the end of September.

    • Rain 🌧️

  • Chennai in September brings notable rainfall, with an average of 20 rainy days and a total precipitation of 76.2 mm.

Average dry days
10
Dry days
Average rainy days
20
Rainy days
Average snowy days
0
Snow days
Average temperatures
32°/27°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Chennai Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
32°
2
Thundery outbreaks possible
34°
3
Patchy rain possible
32°
4
Light drizzle
32°
5
Patchy rain possible
32°
6
Patchy rain possible
32°
7
Patchy rain possible
33°
8
Partly cloudy
33°
9
Thundery outbreaks possible
33°
10
Light rain shower
33°
11
Cloudy
32°
12
Cloudy
33°
13
Partly cloudy
33°
14
Patchy rain possible
32°
15
Patchy rain possible
32°
16
Moderate rain
34°
17
Patchy rain possible
33°
18
Patchy rain possible
32°
19
Patchy rain possible
30°
20
Patchy rain possible
32°
21
Patchy rain possible
30°
22
Patchy rain possible
32°
23
Patchy rain possible
33°
24
Patchy rain possible
34°
25
Patchy rain possible
33°
26
Patchy rain possible
31°
27
Patchy rain possible
32°
28
Patchy light drizzle
32°
29
Patchy light drizzle
31°
30
Patchy rain possible
31°

Temperatures trend during September in Chennai

See the weather trend as well as the moving average line

September weather in Chennai day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 32° /26° 0.6 mm 7
2 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 34° /26° 2.4 mm 7
3 Sept. Patchy rain possible
Patchy rain possible
 32° /26° 2.3 mm 7
4 Sept. Light drizzle
Light drizzle
 32° /27° 1.8 mm 7
5 Sept. Patchy rain possible
Patchy rain possible
 32° /27° 0.8 mm 7
6 Sept. Patchy rain possible
Patchy rain possible
 32° /27° 1.5 mm 7
7 Sept. Patchy rain possible
Patchy rain possible
 33° /27° 1.6 mm 7
8 Sept. Partly cloudy
Partly cloudy
 33° /27° 0.2 mm 8
9 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 33° /27° 0.9 mm 7
10 Sept. Light rain shower
Light rain shower
 33° /26° 1.7 mm 7
11 Sept. Cloudy
Cloudy
 32° /26° 2.5 mm 7
12 Sept. Cloudy
Cloudy
 33° /27° 2 mm 7
13 Sept. Partly cloudy
Partly cloudy
 33° /27° 0.7 mm 7
14 Sept. Patchy rain possible
Patchy rain possible
 32° /28° 3.5 mm 2.3
15 Sept. Patchy rain possible
Patchy rain possible
 32° /27° 2.8 mm 2.2
16 Sept. Moderate rain
Moderate rain
 34° /28° 6.3 mm 2.5
17 Sept. Patchy rain possible
Patchy rain possible
 33° /28° 3.5 mm 2.4
18 Sept. Patchy rain possible
Patchy rain possible
 32° /28° 1.9 mm 2.5
19 Sept. Patchy rain possible
Patchy rain possible
 30° /28° 2.9 mm 6
20 Sept. Patchy rain possible
Patchy rain possible
 32° /27° 0.6 mm 6
21 Sept. Patchy rain possible
Patchy rain possible
 30° /27° 2.6 mm 6
22 Sept. Patchy rain possible
Patchy rain possible
 32° /27° 1.4 mm 6
23 Sept. Patchy rain possible
Patchy rain possible
 33° /28° 1 mm 7
24 Sept. Patchy rain possible
Patchy rain possible
 34° /28° 0.5 mm 7
25 Sept. Patchy rain possible
Patchy rain possible
 33° /28° 0.5 mm 7
26 Sept. Patchy rain possible
Patchy rain possible
 31° /27° 0.4 mm 6
27 Sept. Patchy rain possible
Patchy rain possible
 32° /27° 0.4 mm 6
28 Sept. Patchy light drizzle
Patchy light drizzle
 32° /26° 9.9 mm 7
29 Sept. Patchy light drizzle
Patchy light drizzle
 31° /27° 2.2 mm 7
30 Sept. Patchy rain possible
Patchy rain possible
 31° /26° 2 mm 8
Next
Important Notice
Our weather forecast for Chennai in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Chennai forecast closer to your planned date for the most up-to-date weather information.
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Chennai in September - FAQ

What are the expected maximum and minimum temperatures in Chennai during September?
During September, expect a variety of temperatures with highs around 32° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Chennai during September?
Moderate rainfall is anticipated in Chennai during September, with a total of 76.2 mm spread over approximately 20 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Chennai during September?
The average wind speed in Chennai during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Chennai

Explore the daily rainfall trends and prepare for Chennais September weather 💧

UV exposure in Chennai during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Get accurate weather forecasts for Chennai, located at latitude 13.088 and longitude 80.278. Stay updated with localized weather information tailored for Chennai.

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