Saint George's
Grenada
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Saint George's, Grenada

A large ship on the clear calm waters of the Saint George
A large ship on the clear calm waters of the Saint George's harbor in Grenada, with a view of the buildings of the coastal city
The first month of the autumn, September, is a hot month in Saint George's, Grenada, with average temperature varying between 30°C (86°F) and 25.5°C (77.9°F).

Temperature

April, May and September, with an average high-temperature of 30°C (86°F), are the warmest months.

Rainfall

In Saint George's, it is raining for 17 days, with typically 273.3mm (10.8") of accumulated precipitation. Throughout the year, there are 180 rainfall days, and 1450.8mm (57.1") of precipitation is accumulated.

Sea temperature

September is the month with the warmest seawater in Saint George's, with an average sea temperature of 29.6°C (85.3°F). 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 September, the average length of the day in Saint George's is 12.2h.

Sunshine

Months with the least sunshine in Saint George's, Grenada, are June, July, September through December, with an average of 7h of sunshine.

UV index

Months with the highest UV index in Saint George's are February through September, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an extreme threat to health from the exposure to the Sun's UV radiation for the average person.
The daily maximum UV index of 12 interpret into the following advice:
Take all necessary precautions, as unprotected skin can burn in 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What are the warmest months in Saint George's?

April, May and September, with an average high-temperature of 30°C (86°F), are warmest months in Saint George's.

What is the temperature in September in Saint George's?

The average high-temperature, in September, in Saint George's, Grenada, is 30°C (86°F), while the average low-temperature is 25.5°C (77.9°F).

How many days does it rain in September in Saint George's?

In Saint George's, Grenada, during September, the rain falls for 17 days and regularly aggregates up to 273.3mm (10.8") of precipitation.

What month is the sea warmest in Saint George's?

The month with the warmest seawater in Saint George's is September, with an average sea temperature of 29.6°C (85.3°F). 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.

How warm is the water in September in Saint George's?

In Saint George's, the average seawater temperature in September is 29.6°C (85.3°F). 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.

How many hours of daylight does Saint George's have in September?

In September, the average length of the day in Saint George's, Grenada, is 12.2h.

What is the month with the least sunshine in Saint George's?

Months with the least sunshine in Saint George's are June, July, September through December, with an average of 7h of sunshine.

How many hours of sunshine does Saint George's have in September?

The average sunshine in September in Saint George's is 7h.

What is the month with the highest UV index in Saint George's?

Months with the highest UV index in Saint George's are February through September, with an average maximum UV index of 12.

What is the UV index reading in September in Saint George's?

In September, the average daily maximum UV index is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Saint George
  • Average high temperature in September: 30°C

Warmest months (with the highest average high temperature) are April, May and September (30°C).
The month with the lowest average high temperature is January (28.3°C).

  • Average low temperature in September: 25.5°C

The month with the highest average low temperature is May (26.6°C).
Coldest months (with the lowest average low temperature) are January and February (23.8°C).

Average rainfall in September - Saint George
  • Average rainfall in September: 273.3mm

The wettest month (with the highest rainfall) is August (293.1mm).
The driest month (with the lowest rainfall) is April (16.3mm).

Average rainfall days in September - Saint George
  • Average rainfall days in September: 17 days

Months with the highest number of rainy days are July and November (20 days).
The month with the lowest number of rainy days is April (7 days).

Average sea temperature in September - Saint George
  • Average sea temperature in September: 29.6°C

The best month for swimming (with the highest average sea temperature) is September (29.6°C).
The coldest month (with the lowest average sea temperature) is March (27.2°C).

Average daylight in September / Average sunshine in September - Saint George
  • Average daylight in September: 12.2h

Months with the longest days are June and July (Average daylight: 12.8h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in September: 7h

Months with most sunshine are January, February, March, April, May and August (Average sunshine: 8h).
Months with least sunshine are June, July, September, October, November and December (Average sunshine: 7).

Average UV index in September - Saint George
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).