September weather forecast
Calcutta, Belize

The first month of the autumn, September, is still a hot month in Calcutta, Belize, with an average temperature ranging between min 24.4°C (75.9°F) and max 31.5°C (88.7°F).

Temperature

September's weather records an average high-temperature of a still tropical 31.5°C (88.7°F), showing little deviation from August. In Calcutta, September nights cool down to an average of 24.4°C (75.9°F).

Heat index

September's mean heat index is calculated to be a scorching 43°C (109.4°F). Vigilance: Heat cramps and heat exhaustion are likely. The likelihood of heatstroke increases with continued activity.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in September in Calcutta is 81%.

Rainfall

In Calcutta, during September, the rain falls for 23.1 days and regularly aggregates up to 96mm (3.78") of precipitation. In Calcutta, during the entire year, the rain falls for 198.4 days and collects up to 752mm (29.61") of precipitation.

Daylight

In Calcutta, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 05:39 and sunset at 18:07. On the last day of September, in Calcutta, sunrise is at 05:44 and sunset at 17:42 CST.

Sunshine

In Calcutta, the average sunshine in September is 8.5h.

UV index

March through July and September, with an average maximum UV index of 7, are months with the highest UV index in Calcutta, Belize. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Deter overexposure. Protecting against the sun's effects is essential. 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 holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.