September weather forecast and climate
Georgetown, Guyana

A view of the front gate entrance to the colonial building in Georgetown, Guyana
A view of the front gate entrance to the colonial building in Georgetown, Guyana
September, the first month of the autumn, in Georgetown, is also a hot month, with average temperature fluctuating between 24.2°C (75.6°F) and 30.8°C (87.4°F).

Temperature

The warmest months are September and October, with an average high-temperature of 30.8°C (87.4°F).

Rainfall

In Georgetown, during 9 rainfall days, 97.5mm (3.84") of precipitation is typically accumulated. Throughout the year, there are 174 rainfall days, and 2260.3mm (88.99") of precipitation is accumulated.

Sea temperature

In Georgetown, Guyana, the average seawater temperature in September is 28.8°C (83.8°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Georgetown, Guyana, the average length of the day in September is 12.2h.

Sunshine

With an average of 7.7h of sunshine, September has the most sunshine of the year in Georgetown.

UV index

Months with the highest UV index in Georgetown are January through October, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 12 interpret into the following advice:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What are the warmest months in Georgetown?

September and October, with an average high-temperature of 30.8°C (87.4°F), are warmest months in Georgetown.

What is the temperature in September in Georgetown?

In September, in Georgetown, the average high-temperature is 30.8°C (87.4°F), and the average low-temperature is 24.2°C (75.6°F).

How much does it rain in Georgetown in September?

In Georgetown, in September, it is raining for 9 days, with typically 97.5mm (3.84") of accumulated precipitation.

How warm is the water in September in Georgetown?

In September, the average sea temperature in Georgetown is 28.8°C (83.8°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in Georgetown?

The average length of the day in September in Georgetown, Guyana, is 12.2h.

What month has the most sunshine in Georgetown?

With an average of 7.7h of sunshine, September has the most sunshine of the year in Georgetown, Guyana.

How long on average sun shines in September in Georgetown?

In Georgetown, the average sunshine in September is 7.7h.

What is the month with the highest UV index in Georgetown?

January through October, with an average maximum UV index of 12, are months with the highest UV index in Georgetown.

What is the UV index intensity in September in Georgetown?

The average daily maximum UV index in September in Georgetown, Guyana, is 12. A UV Index reading of 11, and higher, represents an extreme health threat from unprotected exposure to the UV radiation.
Average temperature in September - Georgetown, Guyana
  • Average high temperature in September: 30.8°C

The warmest months (with the highest average high temperature) are September and October (30.8°C).
The month with the lowest average high temperature is January (28.6°C).

  • Average low temperature in September: 24.2°C

Months with the highest average low temperature are April and October (24.4°C).
The coldest month (with the lowest average low temperature) is July (23.5°C).

Average rainfall in September - Georgetown, Guyana
  • Average rainfall in September: 97.5mm

The wettest month (with the highest rainfall) is June (327.7mm).
The driest month (with the least rainfall) is February (88.5mm).

Average rainfall days in September - Georgetown, Guyana
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is June (23 days).
Months with the least rainy days are September and October (9 days).

Average sea temperature in September - Georgetown, Guyana
  • Average sea temperature in September: 28.8°C

The best month for swimming (with the highest average sea temperature) is August (28.9°C).
The coldest month (with the lowest average sea temperature) is February (27.2°C).

Average daylight in September / Average sunshine in September - Georgetown, Guyana
  • Average daylight in September: 12.2h

Months with the longest days are June and July (Average daylight: 12.5h).
The month with the shortest days is December (Average daylight: 11.7h).

  • Average sunshine in September: 7.7h

The month with the most sunshine is September (Average sunshine: 7.7h).
The month with the least sunshine is June (Average sunshine: 5.2h).

Average UV index in September - Georgetown, Guyana
  • Average UV index in September: 12

Months with the highest UV index are January, February, March, April, May, June, July, August, September and October (UV index 12).
Months with the lowest UV index are November and December (UV index 11).