August weather forecast
Chennai, India

August in Chennai continues the monsoon tradition, featuring a generous 97mm (3.82") rainfall and humidity peaking to its high point of the year. While temperatures recede in comparison to July, cloudy skies do little in offsetting the resulting humidity. Despite becoming windier, the month leans towards a stationary weather pattern underscored by constant, moderate rainfall. The seas show their cool side, complementing the relatively lower temperatures on land. Monsoon-laden August, with its reliable showers, seamlessly blends the sky, the sea, and the land, into a forecast that is uniquely Chennai's.

Temperature

As Chennai steps into August, the average high-temperature holds at a still tropical 32.3°C (90.1°F), hinting at a minor fluctuation from the prior month. In Chennai, the August nights are characterized by an average low-temperature of 27.7°C (81.9°F), a minor dip from daytime readings.

Heat index

The average heat index in August is evaluated at a scorching 41°C (105.8°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In August, the average relative humidity is 69%.

Rainfall

In Chennai, in August, during 21.2 rainfall days, 97mm (3.82") of precipitation is typically accumulated. In Chennai, during the entire year, the rain falls for 157.6 days and collects up to 823mm (32.4") of precipitation.

Sea temperature

In Chennai, India, in August, the average water temperature is 28.8°C (83.8°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

In Chennai, India, the average length of the day in August is 12h and 33min.
On the first day of the month, sunrise is at 5:54 am and sunset at 6:36 pm. On the last day of August, in Chennai, sunrise is at 5:57 am and sunset at 6:20 pm IST.

Sunshine

The average sunshine in August is 10.7h.

UV index

In Chennai, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 in August translates into these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Attention! The reflection of both water and sand can increase the intensity of UV rays.