Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Keelakarai, India

The ideal sea water temperature of 27.9°C (82.2°F) make September the best time for swimming and other water activities in Keelakarai, India.

Sea temperature

In Keelakarai, in September, the average water temperature is 27.9°C (82.2°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.


In September, the average length of the day in Keelakarai is 12.2h.

How warm is the water in September in Keelakarai?

In September, the average sea temperature is 27.9°C (82.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

How many hours of daylight does Keelakarai have in September?

In September, the average length of the day in Keelakarai is 12.2h.
Average sea temperature in September - Keelakarai, India
  • Average sea temperature in September: 27.9°C

The best month for swimming (with the highest average sea temperature) is April (30.1°C).
The coldest month (with the lowest average sea temperature) is January (27.2°C).

Average daylight in September - Keelakarai, India
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.7h).
Months with shortest days are January and December (Average daylight: 11.6h).