October weather forecast and climate
Chennai, India

A staircase to the front entrance of the Ramakrishna Temple in Chennai, India
A staircase to the front entrance of the Ramakrishna Temple in Chennai, India
October, the first month of the post monsoon autumn, in Chennai, is still a hot month, with average temperature ranging between max 31.8°C (89.2°F) and min 24.5°C (76.1°F).

Temperature

In October, the average high-temperature is 31.8°C (89.2°F), and the average low-temperature is 24.5°C (76.1°F).

Humidity

In Chennai, India, the average relative humidity in October is 77%.

Rainfall

In October, in Chennai, the rain falls for 10.6 days. Throughout October, 278.8mm (11") of precipitation is accumulated. Throughout the year, there are 59.1 rainfall days, and 1391.5mm (54.8") of precipitation is accumulated.

Sea temperature

In October, the average sea temperature in Chennai is 29.3°C (84.7°F). 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.

Daylight

In October, the average length of the day in Chennai, India, is 11.8h.

Sunshine

The average sunshine in October is 6.3h.

UV index

In October, the average daily maximum UV index in Chennai, India, is 11. A UV Index reading of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to the UV radiation for the ordinary person.
In October, the average maximum UV index of 11 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in October in Chennai?

In Chennai, India, in October, the average high-temperature is 31.8°C (89.2°F), and the average low-temperature is 24.5°C (76.1°F).

What is the average humidity in October in Chennai?

In October, the average relative humidity in Chennai, India, is 77%.

How much does it rain in Chennai in October?

In Chennai, in October, it is raining for 10.6 days, with typically 278.8mm (11") of accumulated precipitation.

How warm is the water in October in Chennai?

In Chennai, the average seawater temperature in October is 29.3°C (84.7°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 Chennai have in October?

The average length of the day in October is 11.8h.

How many hours of sunshine does Chennai have in October?

The average sunshine in October is 6.3h.

What is the UV index reading in October in Chennai?

In October, the average daily maximum UV index in Chennai, India, is 11. A UV Index value of 11, and more, symbolizes an excessive health risk from unprotected exposure to the UV radiation.
Average temperature in October - Chennai, India
  • Average high temperature in October: 31.8°C

The warmest month (with the highest average high temperature) is June (36.9°C).
The month with the lowest average high temperature is December (28.5°C).

  • Average low temperature in October: 24.5°C

The month with the highest average low temperature is May (27.9°C).
The coldest month (with the lowest average low temperature) is January (20.9°C).

Average humidity in October - Chennai, India
  • Average humidity in October: 77%

The month with the highest relative humidity is November (78%).
The month with the lowest relative humidity is June (57%).

Average rainfall in October - Chennai, India
  • Average rainfall in October: 278.8mm

The wettest month (with the highest rainfall) is November (407.4mm).
The driest month (with the lowest rainfall) is February (2.2mm).

Average rainfall days in October - Chennai, India
  • Average rainfall days in October: 10.6 days

The month with the highest number of rainy days is November (11.7 days).
The month with the lowest number of rainy days is March (0.3 days).

Average sea temperature in October - Chennai, India
  • Average sea temperature in October: 29.3°C

The best month for swimming (with the highest average sea temperature) is May (29.5°C).
The coldest month (with the lowest average sea temperature) is January (26.8°C).

Average daylight in October / Average sunshine in October - Chennai, India
  • Average daylight in October: 11.8h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in October: 6.3h

The month with most sunshine is April (Average sunshine: 9.7h).
The month with least sunshine is July (Average sunshine: 6h).

Average UV index in October - Chennai, India
  • Average UV index in October: 11

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

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