October weather forecast
Calcutta, Suriname

October brings a subtle change in the weather conditions of Calcutta. The rainfall, which was at its annual lowest in September, sees a slight increase reaching 38mm (1.5"). The city gleams under the bright sunlight with a steady increase in the UV index, requiring residents and visitors to optimize their sun protection measures. As with other months, the steady trade winds maintain the city's liveliness. Relatively clear skies and breezy evenings enhance the city's charm, providing a comfortable climate for leisure activities.

Temperature

The warmest month is October, with an average high-temperature of 31.9°C (89.4°F) and an average low-temperature of 24.8°C (76.6°F).

Heat index

During October, the heat index is appraised at a blistering 43°C (109.4°F). On guard: Heat exhaustion and heat cramps are predicted. Heatstroke is a potential hazard with continuous physical effort.
Heat index evaluations are typically in the context of light winds and shaded environments. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The months with the lowest humidity are September and October, with an average relative humidity of 77%.

Rainfall

In October, in Calcutta, the rain falls for 15.2 days. Throughout October, 38mm (1.5") of precipitation is accumulated. In Calcutta, during the entire year, the rain falls for 268.5 days and collects up to 1061mm (41.77") of precipitation.

Daylight

In October, the average length of the day in Calcutta is 11h and 59min.
On the first day of the month, sunrise is at 06:30 and sunset at 18:34. On the last day of October, in Calcutta, sunrise is at 06:28 and sunset at 18:23 -03.

Sunshine

In Calcutta, the average sunshine in October is 9.3h.

UV index

February, March, June through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 7 during October, leads to the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.