July weather forecast
Kolkata, India

July is characterized by consistent monsoon downpours in Kolkata, leading to a decrease in the city's overall temperature. The cityscape is dominated by rain-washed greenery and cloudy skies. The monsoon romance of the city is an experience in itself, despite the hindrances posed by heavy showers. In this month, Kolkata experiences its highest rainfall of the year with a significant 411mm (16.18") of precipitation.

Temperature

July's climate shows a minor adjustment in average high-temperatures to a still hot 32.3°C (90.1°F) from June's 34°C (93.2°F). Kolkata experiences a steady low-temperature of 26.1°C (79°F) throughout July.

Heat index

For July, the heat index is evaluated at a burning hot 47°C (116.6°F). Careful: Heat exhaustion and heat cramps are anticipated. With ongoing exertion, heatstroke becomes a possibility.
Know that the heat index computations account for shaded terrains and slight winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

July and August, with an average relative humidity of 83%, are the most humid months.

Rainfall

July is the month with the most rainfall in Kolkata, India. Rain falls for 20.5 days and accumulates 411mm (16.18") of precipitation.

Daylight

In Kolkata, the average length of the day in July is 13h and 22min.
On the first day of July in Kolkata, India, sunrise is at 4:55 am and sunset at 6:25 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 6:18 pm IST.

Sunshine

With an average of 3h of sunshine, July has the least sunshine of the year in Kolkata.

UV index

April through August, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an excessive health risk from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 12 in July leads to these guidelines:
Undertake all critical precautions. Protection from sun harm is vital. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. After a swim or an outdoor workout, generously apply and regularly reapply a sunscreen with at least SPF 30, even if the day is cloudy.