St Simons Island weather live forecast

Today's maximum temperature in St Simons Island is expected to be 21°C. Select a day from the live weather forecast for St Simons Island, Georgia, USA for more weather parameters.

5-day weather forecast updated at 04:04 on Friday 5th December 2025 GMT

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The 5-day weather forecast for Georgia (USA) (St Simons Island) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

St Simons Island weather forecast by day

Below are the detailed weather forecasts for St Simons Island for the next 5 days.

St Simons Island weather for Friday 5th December 2025

Expect cloudy with some rain in St Simons Island, Georgia (USA) with a maximum temperature of 21°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 90% chance of some rain and a gentle breeze of 13 kph from the south-west.

  • 21°C maximum temperature21
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 90% chance of some rain90
    % chance of some rain
  • 30-40 mm of rainfall expected<40
    mm of rainfall expected
  • 21°C wind chill21
    °C wind chill
  • Gentle breeze of 13 kph from the South-West13
    kph wind from SW

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St Simons Island weather for Saturday 6th December 2025

Expect cloudy with some rain in St Simons Island, Georgia (USA) with a maximum temperature of 16°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 99% chance of some rain and a light breeze of 11 kph from the north.

  • 16°C maximum temperature16
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 99% chance of some rain99
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Light breeze of 11 kph from the North11
    kph wind from N

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St Simons Island weather for Sunday 7th December 2025

Expect cloudy with some rain in St Simons Island, Georgia (USA) with a maximum temperature of 16°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 30-40 mm of rainfall expected with 92% chance of some rain and a light breeze of 11 kph from the north-east.

  • 16°C maximum temperature16
    °C maximum temperature
  • 12°C minimum temperature12
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 92% chance of some rain92
    % chance of some rain
  • 30-40 mm of rainfall expected<40
    mm of rainfall expected
  • 16°C wind chill16
    °C wind chill
  • Light breeze of 11 kph from the North-East11
    kph wind from NE

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St Simons Island weather for Monday 8th December 2025

Expect broken clouds in St Simons Island, Georgia (USA) with a maximum temperature of 15°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north.

  • 15°C maximum temperature15
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Gentle breeze of 17 kph from the North17
    kph wind from N

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St Simons Island weather for Tuesday 9th December 2025

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 16 kph from the North-East16
    kph wind from NE

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Metric (°C / mm)  |  Imperial (°F / inches)

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