January weather forecast
Chennai, India

January in Chennai, India, is characterized by a relative reduction in rainfall compared to the previous month, as indicated by 11mm (0.43") of recorded rainfall. Temperate weather, moderate humidity, and consistent wind speed set an agreeable climate for residents or visitors. Answering its reputation as a premier winter destination, Chennai experiences longer daylight hours, offering ample opportunity to explore the city's numerous attractions. The month's similar temperature spectrum to neighboring months underscores the mildness of its winter. Although January is the first month of the year, it proves second to none in offering an ideal weather experience.

Temperature

In Chennai, January records the lowest average temperatures, peaking at 27.3°C (81.1°F) and reaching a low of 23.4°C (74.1°F).

Heat index

In January, the heat index is evaluated at a hot 30°C (86°F). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.

Humidity

In January, the average relative humidity is 72%.

Rainfall

In Chennai, in January, during 6.3 rainfall days, 11mm (0.43") of precipitation is typically accumulated. Throughout the year, in Chennai, there are 157.6 rainfall days, and 823mm (32.4") of precipitation is accumulated.

Sea temperature

With an average sea temperature of 26.8°C (80.2°F), January is the month with the coldest seawater.
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.

Daylight

The average length of the day in January is 11h and 27min.
On the first day of January, sunrise is at 6:30 am and sunset at 5:53 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:09 pm IST.

Sunshine

The average sunshine in January in Chennai is 8.5h.

UV index

The average daily maximum UV index in January in Chennai is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: In January, the maximum UV index of 7 transforms into these recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Caution! Sand and water reflections can notably increase the UV radiation intensity.