Monthly weather forecast and climate
Saint Simons Island, GA

A long pier with a large shed on the St. Simons Island, Georgia, the rocks and seawater, and colorful sunset clouds in the sky above
A long pier with a large shed on the St. Simons Island, Georgia, the rocks and seawater, and colorful sunset clouds in the sky above
January, like December, in Saint Simons Island, Georgia, is another comfortable winter month, with temperature in the range of an average low of 41°F (5°C) and an average high of 60.8°F (16°C). The coldest month is January, with an average high-temperature of 60.8°F (16°C) and an average low-temperature of 41°F (5°C). Weather in January »
The last month of the winter, February, is also a comfortable month in Saint Simons Island, Georgia, with average temperature fluctuating between 62.6°F (17°C) and 42.8°F (6°C). In Saint Simons Island, in February, the average high-temperature is 62.6°F (17°C), and the average low-temperature is 42.8°F (6°C). Weather in February »

March, the first month of the spring, in Saint Simons Island, is a pleasant month, with temperature in the range of an average low of 50°F (10°C) and an average high of 69.8°F (21°C). In March, the average high-temperature is 69.8°F (21°C), and the average low-temperature is 50°F (10°C). Weather in March »

April is a warm spring month in Saint Simons Island, Georgia, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 75.2°F (24°C). In April, the average high-temperature is 75.2°F (24°C), and the average low-temperature is 57.2°F (14°C). Weather in April »

The last month of the spring, May, is also a warm month in Saint Simons Island, Georgia, with average temperature varying between 82.4°F (28°C) and 64.4°F (18°C). The average high-temperature, in May, is 82.4°F (28°C), while the average low-temperature is 64.4°F (18°C). Weather in May »

June, the first month of the summer, in Saint Simons Island, is a hot month, with average temperature fluctuating between 71.6°F (22°C) and 86°F (30°C). The average high-temperature, is 86°F (30°C), while the average low-temperature is 71.6°F (22°C). Weather in June »

July, the same as June, in Saint Simons Island, Georgia, is another hot summer month, with average temperature fluctuating between 73.4°F (23°C) and 89.6°F (32°C). With an average high-temperature of 89.6°F (32°C) and an average low-temperature of 73.4°F (23°C), July is the warmest month. Weather in July »

The last month of the summer, August, is also a hot month in Saint Simons Island, Georgia, with average temperature varying between 73.4°F (23°C) and 87.8°F (31°C). In Saint Simons Island, in August, the average high-temperature is 87.8°F (31°C), and the average low-temperature is 73.4°F (23°C). Weather in August »

The first month of the autumn, September, is also a warm month in Saint Simons Island, Georgia, with temperature in the range of an average low of 71.6°F (22°C) and an average high of 84.2°F (29°C). In September, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 71.6°F (22°C). Weather in September »

October, the same as September, is a warm autumn month in Saint Simons Island, Georgia, with temperature in the range of an average high of 77°F (25°C) and an average low of 60.8°F (16°C). The average high-temperature, in October, is 77°F (25°C), while the average low-temperature is 60.8°F (16°C). Weather in October »

November, the last month of the autumn, in Saint Simons Island, is another pleasant month, with average temperature fluctuating between 69.8°F (21°C) and 51.8°F (11°C). In Saint Simons Island, the average high-temperature is 69.8°F (21°C), and the average low-temperature is 51.8°F (11°C). Weather in November »

December, the first month of the winter, in Saint Simons Island, is still a comfortable month, with temperature in the range of an average high of 64.4°F (18°C) and an average low of 44.6°F (7°C). In Saint Simons Island, Georgia, in December, the average high-temperature is 64.4°F (18°C), and the average low-temperature is 44.6°F (7°C). Weather in December »

What is the coldest month in Saint Simons Island?

With an average high-temperature of 60.8°F (16°C) and an average low-temperature of 41°F (5°C), January is the coldest month.

How much does it rain in Saint Simons Island?

Throughout the year, there are 113 rainfall days, and 50.7" (1289mm) of precipitation is accumulated.

What is the month with the least sunshine in Saint Simons Island?

January and December, with an average of 6h of sunshine, are months with the least sunshine.

What is the month with the lowest UV index in Saint Simons Island?

January, November and December, with an average UV index of 4, are months with the lowest UV index in Saint Simons Island, Georgia.

What is the month with the coldest ocean in Saint Simons Island?

February is the month with the coldest seawater in Saint Simons Island, Georgia, with an average ocean temperature of 58.6°F (14.8°C). Swimming in 58.6°F (14.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What month has the most sunshine in Saint Simons Island?

The month with the most sunshine is May, with an average of 10h of sunshine.

When are the longest days in Saint Simons Island?

June has the longest days of the year, with an average of 14.2h of daylight.

What are the months with the highest UV index in Saint Simons Island?

Months with the highest UV index are June and July, with an average UV index of 11.

What is the warmest month in Saint Simons Island?

With an average high-temperature of 89.6°F (32°C) and an average low-temperature of 73.4°F (23°C), July is the warmest month.

When is the ocean warmest in Saint Simons Island?

August is the month with the warmest seawater, with an average ocean temperature of 83.5°F (28.6°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the wettest month in Saint Simons Island?

The month with the most rainfall in Saint Simons Island, Georgia, is September when the rain falls for 11 days and typically aggregates up to 7" (179mm) of precipitation.

What is the driest month in Saint Simons Island?

November is the month with the least rainfall in Saint Simons Island, Georgia. Rain falls for 6 days and accumulates 2.6" (66mm) of precipitation.

What is the month with the shortest days in Saint Simons Island?

The month with the shortest days in Saint Simons Island is December, with an average of 10.2h of daylight.
Average rainfall - Saint Simons Island, GA
Average rainfall days - Saint Simons Island, GA
Average sea temperature - Saint Simons Island, GA

The best month for swimming (with the highest average sea temperature) is August (83.4°F).
The coldest month (with the lowest average sea temperature) is February (58.5°F).

Average daylight / Average sunshine - Saint Simons Island, GA
Average UV index - Saint Simons Island, GA
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