If you plan to visit Chennai in September, the weather is typically alright, with an average high temperature of +88°F during the day and approximately 0 sunny days. Expect some rainy, though, as there are typically 16 rainy days in the month and around 99 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+88°F
Avg. max. temperature
+73°F
Min.
+97°F
Max.
99 mm
Total precipitation
78%
Avg. humidity
2 m/s
Avg. wind
0 ☀️
Sunny Days
7 ⛅️
Cloudy
16 🌦
Rainy
Our opinion: Chennai has OK weather in September.
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Average temperature in Chennai in September
Here are the expected maximum, average and minimum temperatures in Chennai for September based on the historical data.
Last Year
Historical Data
Going from a maximum of +91°F during the day to a minimum of +79°F during the night, the temperature in September averages around +88°F.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +88°F to +88°F.
Is Chennai warm or cold in September?
Chennai is typically hot in September.
Maximum temperatures go down compared to the previous month from +90°F to +88°F. The minimum temperature also goes up from +81°F to +81°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how September is compared to other months in Chennai:
Climate in Chennai in September
Chennai weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+90°F
+88°F
+86°F
Min. temperature
+75°F
+73°F
+72°F
Max. temperature
+100°F
+97°F
+99°F
Rainfall
85 mm
99 mm
170 mm
Wind
2 m/s
2 m/s
2 m/s
Humidity
74%
78%
82%
Air pressure
1005 HPa
1006 HPa
1008 HPa
Sunny days
0
0
2
Cloudy days
9
7
6
Rainy days
16
16
19
Snowy days
0
0
0
September typically has worse weather conditions compared to August.It’s getting colder in September. From +90°F in the day, the average maximum temperature lowers to +88°F.Prepare for more rain. Average rainfall goes from 85 mm to 99 mm.Humidity rises from 74% to 78%.The average wind speed doesn’t change much during September, staying around 2 m/s.The amount of sunny days stay about the same, averaging 0 sunny days during the month.
October brings much the same weather, it remains ok.
Wind speed in Chennai in September based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Chennai is gradually increasing during September, going from 3 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Chennai based on historical data.
Last Year
Historical Data
Typically, there is a 70% chance of rain on an average day in September, with total rainfall of approximately 116 mm. The maximum amount of rainfall per day is around 26 mm, which is moderate rain.September is a pretty wet month with over 21 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how September is compared with other months in the amount of precipitation, total mm:
Chennai wettest month is November, where a typical day has a 63% chance of precipitation and 217 mm of rainfall per day. March, on the other hand, is the driest month with a mere 13% chance of precipitation and 9 mm of rainfall per day.
How was the weather last September in Chennai?
This is the weather in Chennai in September 2023:
1 September
☀️
+87°F
2 September
🌫️
+88°F
3 September
🌫️
+88°F
4 September
🌫️
+85°F
5 September
🌫️
+86°F
6 September
🌫️
+87°F
7 September
🌫️
+89°F
8 September
☁️
+88°F
9 September
🌫️
+88°F
10 September
☁️
+88°F
11 September
🌫️
+87°F
12 September
☁️
+91°F
13 September
☁️
+89°F
14 September
🌫️
+89°F
15 September
🌫️
+90°F
16 September
🌧️
+88°F
17 September
🌫️
+88°F
18 September
🌫️
+88°F
19 September
🌫️
+88°F
20 September
☁️
+89°F
21 September
☁️
+87°F
22 September
☁️
+87°F
23 September
🌫️
+87°F
24 September
☁️
+88°F
25 September
🌫️
+88°F
26 September
🌫️
+88°F
27 September
🌫️
+88°F
28 September
🌫️
+89°F
29 September
🌫️
+88°F
30 September
🌫️
+89°F
In September 2023 Chennai had 1 sunny days, 8 cloudy days, and 1 rainy days. The average maximum temperature was +88°F, with an absolute maximum of +91°F and a minimum of +86°F. The average humidity was 80%, with a maximum of 100% and a minimum of 59%. The average wind speed was 3 m/s, with a maximum of 7 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Chennai climate has changed over the last 43 years.
The climate in Chennai in September 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
Frequently asked questions about the weather in Chennai in September:
Is September a good time to visit Chennai?
It’s always a good time to visit Chennai, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Chennai in September?
Absolutely, September is hot in Chennai. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.
Is Chennai rainy in September?
Chennai is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Chennai in September?
Usually, it’s not very sunny in Chennai in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
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.
