September weather forecast
Brighton, Guyana

September, the first month of the autumn in Brighton, is also a hot month, with temperature in the range of an average low of 25.9°C (78.6°F) and an average high of 30.8°C (87.4°F).

Temperature

Brighton's warmest month, September, registers temperatures that range from a high of 30.8°C (87.4°F) to a low of 25.9°C (78.6°F).

Heat index

In September, the heat index is evaluated at a sweltering 39°C (102.2°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

With an average relative humidity of 76%, September is the least humid month.

Rainfall

In Brighton, in September, during 24.5 rainfall days, 141mm (5.55") of precipitation is typically accumulated. In Brighton, during the entire year, the rain falls for 312.6 days and collects up to 2298mm (90.47") of precipitation.

Daylight

The average length of the day in September is 12h and 9min.
On the first day of the month, sunrise is at 05:41 and sunset at 17:55. On the last day of September, in Brighton, sunrise is at 05:36 and sunset at 17:40 -04.

Sunshine

With an average of 9.3h of sunshine, September has the most sunshine of the year in Brighton, Guyana.

UV index

The months with the highest UV index are January, February, April, June through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.