Weather in Thiruvananthapuram in September 2025
Average weather
Average temperature in Thiruvananthapuram in September
The temperature in September is +29°C on average, with a range between a maximum of +31°C during the day and a minimum of +25°C at night.
The average maximum temperature goes down 50% by the end of the month, compared with the beginning of the month, from +30°C to +27°C.
Is Thiruvananthapuram warm or cold in September?
Thiruvananthapuram is typically warm in September.
Maximum temperatures go up compared to the previous month from +28°C to +29°C. The minimum temperature also goes up from +24°C to +24°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how September is compared to other months in Thiruvananthapuram:
Climate in Thiruvananthapuram in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +28°C | +29°C | +29°C | ||||
| Min. temperature | ||||||
| +22°C | +22°C | +21°C | ||||
| Max. temperature | ||||||
| +33°C | +33°C | +34°C | ||||
| Rainfall | ||||||
| 142 mm | 148 mm | 257 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 1 m/s | ||||
| Humidity | ||||||
| 88% | 88% | 87% | ||||
| Air pressure | ||||||
| 1009 HPa | 1009 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 1 | ||||
| Cloudy days | ||||||
| 5 | 4 | 3 | ||||
| Rainy days | ||||||
| 25 | 23 | 21 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as ok as in August. It’s getting warmer as September arrives. The average maximum temperature goes up from +28°C to +29°C during the day. Prepare for more rain. Average rainfall goes from 142 mm to 148 mm. Humidity levels don’t change as the month goes on, averaging around 88%. The average wind speed doesn’t change much during September, staying around 3 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
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Thiruvananthapuram is gradually increasing during September, going from 2 m/s to 3 m/s over the course of the month.
Rain
How was the weather last September in Thiruvananthapuram?
Climate Change over Years
The climate in Thiruvananthapuram in September has not changed much over the last 43 years.
The average temperature was the lowest in 1984 (+29°C) and the highest in 2019 (+32°C). The driest year was 2016 with only 615 mm of rainfall, and the wettest year was 2008 with 2374 mm.
FAQ
Is September a good time to visit Thiruvananthapuram?
Can you sunbathe in Thiruvananthapuram in September?
Is Thiruvananthapuram rainy in September?
Is it sunny in Thiruvananthapuram in September?
Other cities in India
Monthly weather in Thiruvananthapuram
Source of the data
For this page, we’ve looked at the typical weather in Thiruvananthapuram, 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.