May weather forecast
Calcutta, Suriname

In May, Calcutta witnesses the spell of the wet season reaching its peak, with rainfall volumes soaring to a maximum of 156mm (6.14"). The city gets drenched frequently, adding a unique charm to its lush green parks and gardens. The temperature maintains a steady curve, not varying drastically from the previous months. Meanwhile, residents and travelers can appreciate the extended daylight hours, with pleasurable twilight evenings adding to the city's allure. Although the maximum wind speed witnesses a drop, gentle breezes provide some respite from the increasing humidity levels.

Temperature

Calcutta's average high-temperature in May is on par with the preceding month. During the month of May, Calcutta's average nighttime temperature closely mirrors its daytime counterpart, at a still warm 24.7°C (76.5°F).

Heat index

For most parts of May, the heat index is appraised at a sweltering 36°C (96.8°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

May and June, with an average relative humidity of 84%, are the most humid months in Calcutta, Suriname.

Rainfall

The month with the most rainfall in Calcutta is May, when the rain falls for 28.1 days and typically aggregates up to 156mm (6.14") of precipitation.

Daylight

The average length of the day in May is 12h and 23min.
On the first day of May in Calcutta, sunrise is at 06:29 and sunset at 18:49. On the last day of the month, sunrise is at 06:27 and sunset at 18:53 -03.

Sunshine

In Calcutta, Suriname, the average sunshine in May is 7.1h.

UV index

The months with the lowest UV index are January, April, May and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 6 suggests this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.