Thiruvananthapuram weather in September
September is one of the least pleasant months in Thiruvananthapuram: highs of 28°C (82°F) and about 206 mm (8.1 in) of rain on average. Nights average 25°C (76°F) and cloud cover 74% (NASA POWER, 2001–2025 averages). The sea averages 26°C (78°F). It is the 4th wettest month of the year and the 3rd coolest. Compared with August, it is about as warm and wetter; October brings highs of 28°C (82°F) and 291 mm (11.5 in) of rain.
Is September a good time to visit Thiruvananthapuram?
least pleasant month Weather score 51/100.
September is one of the least pleasant months for weather in Thiruvananthapuram. For better conditions, consider Dec–Mar.
Does it rain a lot in Thiruvananthapuram in September?
Yes, it is one of the rainy months: about 206 mm (8.1 in) falls in an average September. It is the 4th wettest month of the year.
How warm is Thiruvananthapuram in September?
Days average 28°C (82°F) and nights 25°C (76°F).
Thiruvananthapuram weather by month
| Month | High | Low | Rain | Cloud | Sea | Weather |
|---|---|---|---|---|---|---|
| January | 30°C (86°F) | 22°C (72°F) | 16 mm | 39% | 29°C (85°F) | best |
| February | 32°C (90°F) | 23°C (74°F) | 21 mm | 37% | 30°C (85°F) | best |
| March | 33°C (91°F) | 25°C (77°F) | 53 mm | 44% | 30°C (86°F) | best |
| April | 31°C (89°F) | 26°C (80°F) | 123 mm | 60% | 31°C (87°F) | fair |
| May | 30°C (85°F) | 27°C (80°F) | 202 mm | 74% | 30°C (85°F) | least pleasant |
| June | 28°C (83°F) | 26°C (78°F) | 249 mm | 82% | 27°C (81°F) | least pleasant |
| July | 27°C (81°F) | 25°C (76°F) | 188 mm | 84% | 25°C (77°F) | least pleasant |
| August | 27°C (81°F) | 25°C (76°F) | 162 mm | 80% | 25°C (77°F) | fair |
| September | 28°C (82°F) | 25°C (76°F) | 206 mm | 74% | 26°C (78°F) | least pleasant |
| October | 28°C (82°F) | 25°C (76°F) | 291 mm | 76% | 28°C (83°F) | least pleasant |
| November | 28°C (83°F) | 24°C (76°F) | 222 mm | 73% | 29°C (84°F) | least pleasant |
| December | 29°C (83°F) | 23°C (73°F) | 62 mm | 57% | 29°C (84°F) | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine. Page updated . How we rate months