September weather forecast
Mabaruma, Guyana

September witnesses the transition of weather in Mabaruma towards the year-end. A decline in rainfall to 92mm (3.62") and a decrease in cloud cover denotes the arrival of the dry season. The overall atmospheric pressure also drops to 1011.5mb, furthering a shift in weather conditions. On the brighter side, daylight continues to grace the city for substantial durations. The city gets to cherish long evenings as sunsets get delayed.

Temperature

In Mabaruma, the month of September is known for its highest average temperatures, reaching a high of 31.5°C (88.7°F) and a low of 24.4°C (75.9°F).

Heat index

The heat index value for September is estimated at an extremely hot 42°C (107.6°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Data suggests that the heat index is set for environments in shade and with a light wind. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in September is 79%.

Rainfall

In Mabaruma, during September, the rain falls for 23.4 days and regularly aggregates up to 92mm (3.62") of precipitation. Throughout the year, there are 305.1 rainfall days, and 1386mm (54.57") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 10min.
On the first day of September in Mabaruma, sunrise is at 05:50 and sunset at 18:06. On the last day of the month, sunrise is at 05:47 and sunset at 17:50 -04.

Sunshine

In Mabaruma, the average sunshine in September is 10h.

UV index

The months with the highest UV index are March through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.