September weather forecastLa Penitence, Guyana

September

Weather in September

September, the first month of the autumn in La Penitence, is still a tropical month, with an average temperature ranging between min 22.9°C (73.2°F) and max 33.1°C (91.6°F).

Temperature

September is the warmest month, exhibiting average temperatures of 33.1°C (91.6°F) at the peak and 22.9°C (73.2°F) at the base.

Heat index

The average heat index in September is evaluated at a burning hot 48°C (118.4°F). Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

September and October, with an average relative humidity of 78%, are the least humid months.

Rainfall

September is the month with the least rainfall in La Penitence. Rain falls for 21 days and accumulates 55mm (2.17") of precipitation.

Daylight

In La Penitence, the average length of the day in September is 12h and 10min.
On the first day of September in La Penitence, sunrise is at 05:45 and sunset at 17:59. On the last day of the month, sunrise is at 05:40 and sunset at 17:44 -04.

Sunshine

In La Penitence, the average sunshine in September is 9h.

UV index

March, April, July through November, with an average maximum UV index of 7, are months with the highest UV index in La Penitence. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Updated: Feb 19, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

La Penitence's temperatures peak on average in September, reaching 33.1°C (91.6°F) at their highest and 22.9°C (73.2°F) at their lowest.

The high-temperature in La Penitence, Guyana, during September is 33.1°C (91.6°F) and the low-temperature is 22.9°C (73.2°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 48°C (118.4°F).

The months with the lowest humidity in La Penitence are September and October, with an average relative humidity of 78%.

The average relative humidity in September in La Penitence is 78%.

September is the month with the least rainfall in La Penitence, Guyana. Rain falls for 21 days and accumulates 55mm (2.17") of precipitation.

In La Penitence, in September, during 21 rainfall days, 55mm (2.17") of precipitation is typically accumulated.

In La Penitence, the average day length in September is 12h and 10min.

On the first day of September, sunrise is at 05:45 and sunset at 17:59. On the last day of the month, sunrise is at 05:40 and sunset at 17:44 -04.

The average sunshine duration in September is 9h.

March, April, July through November, with an average maximum UV index of 7, are months with the highest UV index in La Penitence, Guyana.

In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

32.2°C

33.1°C

32.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.8km/h

6.2km/h

6.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

8.5

6.2

5.2

Average UV index

Average cloud cover

Average visibility

Average temperature in September
La Penitence, Guyana

Average high temperature in September: 33.1°C

The warmest month (with the highest average high temperature) is September (33.1°C).
The month with the lowest average high temperature is January (29.3°C).

Average low temperature in September: 22.9°C

The month with the highest average low temperature is October (23.5°C).
The coldest month (with the lowest average low temperature) is January (21.8°C).

Average pressure in September
La Penitence, Guyana

Average pressure in September: 1011.6mbar

The month with the highest atmospheric pressure is June (1013.3mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

Average wind speed in September
La Penitence, Guyana

Average wind speed in September: 5.8km/h

The windiest month (with the highest average wind speed) is March (7.3km/h).
The calmest months (with the lowest average wind speed) are July and August (5.1km/h).

Average humidity in September
La Penitence, Guyana

Average humidity in September: 78%

The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are September and October (78%).

Average rainfall in September
La Penitence, Guyana

Average rainfall in September: 55mm

The wettest month (with the highest rainfall) is June (167mm).
The driest month (with the least rainfall) is September (55mm).

Average rainfall days in September
La Penitence, Guyana

Average rainfall days in September: 21 days

The month with the highest number of rainy days is December (29.1 days).
The month with the least rainy days is August (20.8 days).

Average daylight in September /
Average sunshine in September
La Penitence, Guyana

Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).

Average sunshine in September: 9h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

Average sunshine days in September
La Penitence, Guyana

Average sunshine days in September: 6.2 days

The month with the most sunshine days is August (8.5 days).
The month with the least sunshine days is December (0.3 days).

Average UV index in September
La Penitence, Guyana

Average UV index in September: 7

The months with the highest UV index are March, April, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, May, June and December (UV index 6).