September weather forecast
Apoteri, Guyana

September signals a clear return to a less wet weather pattern in Apoteri. A noteworthy drop in rainfall to 66mm (2.6") marks the arrival of the drier season. As cloud cover decreases, visibility improves, offering unobstructed views of the city in its entirety. Complementary to the reduced rainfall, humidity levels also drop, marking a clear departure from the previous damp months. Despite these weather changes, the tropical ambiance of Apoteri remains intact, courtesy of stable temperature and sunlight distribution.

Temperature

The advent of September in Apoteri brings an average high-temperature of a still tropical 32.5°C (90.5°F), exhibiting minor difference from the previous month. During the month of September, the temperature falls to an average of 23.2°C (73.8°F).

Heat index

The heat index for September is evaluated at an extremely hot 42°C (107.6°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

The average relative humidity in September is 71%.

Rainfall

In Apoteri, Guyana, in September, it is raining for 20 days, with typically 66mm (2.6") of accumulated precipitation. In Apoteri, during the entire year, the rain falls for 204.4 days and collects up to 941mm (37.05") of precipitation.

Snowfall

September is the only month when snow falls in Apoteri. September is the month with the most snowfall. Snow falls for 0.1 days and accumulates 1mm (0.04") of snow.

Daylight

In Apoteri, the average length of the day in September is 12h and 8min.
On the first day of the month, sunrise is at 05:48 and sunset at 17:59. On the last day of September, sunrise is at 05:41 and sunset at 17:46 -04.

Sunshine

In September, the average sunshine in Apoteri is 9.8h.

UV index

January through May, July through December, with an average maximum UV index of 7, are months with the highest UV index in Apoteri. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 7 in September transforms into this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.