September weather forecast
Monkey Mountain, Guyana

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Weather in September

September, the first month of the autumn in Monkey Mountain, is still a hot month, with an average temperature varying between 32.5°C (90.5°F) and 23.2°C (73.8°F).

Temperature

Monkey Mountain's average high-temperature in September is a still tropical 32.5°C (90.5°F), marking an insignificant difference from the 31.2°C (88.2°F) of August. September's average low-temperature reading in Monkey Mountain settles at a warm 23.2°C (73.8°F).

Heat index

In September, the heat index is computed to be a blistering 42°C (107.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. 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. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Monkey Mountain, the average relative humidity in September is 71%.

Rainfall

In Monkey Mountain, in September, during 20 rainfall days, 66mm (2.6") of precipitation is typically accumulated. In Monkey Mountain, 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 Monkey Mountain. September is the month with the most snowfall in Monkey Mountain. Snow falls for 0.1 days and accumulates 1mm (0.04") of snow.

Daylight

In September, the average length of the day in Monkey Mountain is 12h and 8min.
On the first day of the month, sunrise is at 05:52 and sunset at 18:04. On the last day of September, in Monkey Mountain, Guyana, sunrise is at 05:46 and sunset at 17:50 -04.

Sunshine

In September, the average sunshine 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. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Feb 19, 2024 | Published by: Weather Atlas | Resources

Frequently asked questions

How hot does it get in Monkey Mountain in September?

The high-temperature, in September, in Monkey Mountain, is 32.5°C (90.5°F), while the low-temperature averages to 23.2°C (73.8°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 42°C (107.6°F).

What is the average humidity in September in Monkey Mountain?

In September, the average relative humidity is 71%.

How many days does it rain in September in Monkey Mountain?

In September, the rain falls for 20 days. Throughout September, 66mm (2.6") of precipitation is accumulated.

When does it snow the most in Monkey Mountain?

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

When does it start to snow in Monkey Mountain?

September is the first month it typically snows in Monkey Mountain. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow.

How many hours of daylight does Monkey Mountain have in September?

The average day length in September in Monkey Mountain, Guyana, is 12h and 8min.

When is the sunrise / sunset in September in Monkey Mountain?

On the first day of September in Monkey Mountain, Guyana, sunrise is at 05:52 and sunset at 18:04. On the last day of the month, sunrise is at 05:46 and sunset at 17:50 -04.

How many hours of sunshine does Monkey Mountain have in September?

In September, the average sunshine duration in Monkey Mountain is 9.8h.

When is the highest UV index in Monkey Mountain?

The months with the highest UV index are January through May, July through December, with an average maximum UV index of 7.

What is the UV index reading in September in Monkey Mountain?

In Monkey Mountain, Guyana, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in September
Monkey Mountain, Guyana

Average temperature in September - Monkey Mountain, Guyana
  • Average high temperature in September: 32.5°C

The warmest month (with the highest average high temperature) is March (34.5°C).
The months with the lowest average high temperature are June and July (30°C).

  • Average low temperature in September: 23.2°C

The month with the highest average low temperature is April (24°C).
The coldest month (with the lowest average low temperature) is July (22.2°C).

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Average pressure in September
Monkey Mountain, Guyana

Average pressure in September - Monkey Mountain, Guyana
  • Average pressure in September: 1011.2mbar

The month with the highest atmospheric pressure is July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).

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Average wind speed in September
Monkey Mountain, Guyana

Average wind speed in September - Monkey Mountain, Guyana
  • Average wind speed in September: 8.4km/h

The windiest month (with the highest average wind speed) is February (16.3km/h).
The calmest month (with the lowest average wind speed) is July (7.2km/h).

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Average humidity in September
Monkey Mountain, Guyana

Average humidity in September - Monkey Mountain, Guyana
  • Average humidity in September: 71%

The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is March (59%).

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Average rainfall in September
Monkey Mountain, Guyana

Average rainfall in September - Monkey Mountain, Guyana
  • Average rainfall in September: 66mm

The wettest month (with the highest rainfall) is June (186mm).
The driest month (with the least rainfall) is January (9mm).

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Average rainfall days in September
Monkey Mountain, Guyana

Average rainfall days in September - Monkey Mountain, Guyana
  • Average rainfall days in September: 20 days

The month with the highest number of rainy days is July (27.8 days).
The month with the least rainy days is January (6 days).

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Average snowfall in September
Monkey Mountain, Guyana

Average snowfall in September - Monkey Mountain, Guyana
  • Average snowfall in September: 1mm

The month with the highest snowfall is September (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).

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Average snowfall days in September
Monkey Mountain, Guyana

Average snowfall days in September - Monkey Mountain, Guyana
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).

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Average daylight in September /
Average sunshine in September
Monkey Mountain, Guyana

Average daylight in September / Average sunshine in September - Monkey Mountain, Guyana
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 54min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 48min).

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Average sunshine days in September
Monkey Mountain, Guyana

Average sunshine days in September - Monkey Mountain, Guyana
  • Average sunshine days in September: 7.2 days

The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is June (1.9 days).

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Average UV index in September
Monkey Mountain, Guyana

Average UV index in September - Monkey Mountain, Guyana
  • Average UV index in September: 7

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

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Average cloud cover in September
Monkey Mountain, Guyana

Average cloud cover in September - Monkey Mountain, Guyana
  • Average cloud cover in September: 30

The month with the most cloud cover is May (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in September
Monkey Mountain, Guyana

Average visibility in September - Monkey Mountain, Guyana
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).

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Monkey Mountain, Guyana

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