September weather forecast
Biscayne, Belize

The first month of the autumn, September, is still a tropical month in Biscayne, Belize, with an average temperature ranging between min 25.4°C (77.7°F) and max 30.7°C (87.3°F).

Temperature

In Biscayne, August and September are characterised by the peak of temperatures, recording an average high of 30.7°C (87.3°F).

Heat index

In September, the heat index is appraised at a blisteringly hot 40°C (104°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Biscayne, the average relative humidity in September is 81%.

Rainfall

In Biscayne, during September, the rain falls for 26.5 days and regularly aggregates up to 151mm (5.94") of precipitation. In Biscayne, Belize, during the entire year, the rain falls for 262.3 days and collects up to 1335mm (52.56") of precipitation.

Daylight

The average length of the day in September is 12h and 14min.
On the first day of September, sunrise is at 05:39 and sunset at 18:07. On the last day of the month, sunrise is at 05:44 and sunset at 17:43 CST.

Sunshine

In September, the average sunshine in Biscayne is 8.9h.

UV index

March through July and September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The UV index of 7 in September translates into these instructions:
Shun overexposure. Protection from sun ravages is indispensable. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.