January 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
January, the same as December, is another warm winter month in Chennai, India, with average temperature fluctuating between 20.9°C (69.6°F) and 28.8°C (83.8°F).

Temperature

The average high-temperature, is 28.8°C (83.8°F), while the average low-temperature is 20.9°C (69.6°F).

Humidity

The average relative humidity is 73%.

Rainfall

In Chennai, in January, it is raining for 1.3 days, with typically 22.5mm (0.9") of accumulated precipitation. Throughout the year, in Chennai, India, there are 59.1 rainfall days, and 1391.5mm (54.8") of precipitation is accumulated.

Sea temperature

The month with the coldest seawater is January, with an average sea temperature of 26.8°C (80.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Chennai, the average length of the day is 11.5h.

Sunshine

In January, the average sunshine in Chennai, India, is 8.7h.

UV index

In January, the average daily maximum UV index is 10. A UV Index reading of 8 to 10 represents a very high health vulnerability from the exposure to the Sun's UV rays for average individuals.
In January, the average maximum UV index of 10 translate into the following recommendations:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in January in Chennai?

In Chennai, India, in January, the average high-temperature is 28.8°C (83.8°F), and the average low-temperature is 20.9°C (69.6°F).

What is the average humidity in January in Chennai?

The average relative humidity in January in Chennai is 73%.

How many days does it rain in January in Chennai?

In Chennai, in January, during 1.3 rainfall days, 22.5mm (0.9") of precipitation is typically accumulated.

What is the month with the coldest sea water in Chennai?

January is the month with the coldest seawater in Chennai, India, with an average sea temperature of 26.8°C (80.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the water temperature in January in Chennai?

In Chennai, in January, the average water temperature is 26.8°C (80.2°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.

How many hours of daylight does Chennai have in January?

In January, the average length of the day in Chennai is 11.5h.

How long on average sun shines in January in Chennai?

In Chennai, the average sunshine in January is 8.7h.

What is the UV index intensity in January in Chennai?

In Chennai, India, the average daily maximum UV index in January is 10. A UV Index estimate of 8 to 10 represents a very high hazard to health from the exposure to the Sun's UV rays.
Average temperature in January - Chennai, India
  • Average high temperature in January: 28.8°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 January: 20.9°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 January - Chennai, India
  • Average humidity in January: 73%

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

Average rainfall in January - Chennai, India
  • Average rainfall in January: 22.5mm

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 January - Chennai, India
  • Average rainfall days in January: 1.3 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 January - Chennai, India
  • Average sea temperature in January: 26.8°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 January / Average sunshine in January - Chennai, India
  • Average daylight in January: 11.5h

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 January: 8.7h

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 January - Chennai, India
  • Average UV index in January: 10

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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