September weather forecastGovernor Light, Guyana

September

Weather in September

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

Temperature

Governor Light's warmest month, September, registers temperatures that range from a high of 33.1°C (91.6°F) to a low of 22.9°C (73.2°F).

Heat index

The average heat index in September is calculated to be a blazing hot 48°C (118.4°F). Mind: Heat cramps along with heat exhaustion are anticipated. Heatstroke can develop with continued physical activity.
Bear in mind that the heat index values are determined for shaded areas and light breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. 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.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

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 Governor Light. Rain falls for 21 days and accumulates 55mm (2.17") of precipitation.

Daylight

In September, the average length of the day in Governor Light is 12h and 9min.
On the first day of September in Governor Light, sunrise is at 05:43 and sunset at 17:57. On the last day of the month, sunrise is at 05:38 and sunset at 17:42 -04.

Sunshine

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. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

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

Frequently asked questions

The highest temperatures in Governor Light, Guyana, are recorded in September, with averages reaching a high of 33.1°C (91.6°F) and a low of 22.9°C (73.2°F).

September temperatures in Governor Light, Guyana, vary between a high-temperature of 33.1°C (91.6°F) and a low-temperature of 22.9°C (73.2°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 48°C (118.4°F).

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

In Governor Light, the average relative humidity in September is 78%.

The month with the least rainfall in Governor Light, Guyana, is September, when the rain falls for 21 days and typically collects 55mm (2.17") of precipitation.

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

In September, the average day length in Governor Light is 12h and 9min.

In September, on the first day of the month, sunrise is at 05:43 and sunset at 17:57. On the last day of the month, in Governor Light, Guyana, sunrise is at 05:38 and sunset at 17:42 -04.

In September, the average sunshine duration in Governor Light, Guyana, is 9h.

The months with the highest UV index in Governor Light are March, April, July through November, with an average maximum UV index of 7.

In Governor Light, Guyana, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

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
Governor Light, 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
Governor Light, 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
Governor Light, 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
Governor Light, 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
Governor Light, 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
Governor Light, 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
Governor Light, 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 48min).

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
Governor Light, 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
Governor Light, 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).