St Simons Island weather in January 2025

Expect 16°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in St Simons Island in January. Check more long-term weather averages for St Simons Island in January before you book your next holiday to Georgia (USA) in 2025/2026.

  • 16°C maximum daytime temperature in January in St Simons Island16
    16°C max day temperature
  • 6 hours of sunshine per day
  • 9 days with some rainfall in January in St Simons Island9
    9 days with some rainfall
  • 5°C minimum night-time temperature in January in St Simons Island5
    5°C min night temperature
  • 10 hours of daylight per day in January in St Simons Island10
    10 hours of daylight per day
  • No heat & humidity in January in St Simons Island0
    No heat & humidity
  • 85 mm monthly rainfall in January in St Simons Island85
    85 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in January in St Simons Island4
    4 (Moderate) UV index
  • 18°C sea temperature in January in St Simons Island18
    18°C sea temperature

More about St Simons Island

St Simons Island by month

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Recommended for Georgia

  • Kids stay & eat for free at Marriot Bonvoy
  • Destinations include Europe, Middle East & Africa
  • Valid for up to 2 adults & 2 kids aged up to 12

The January weather guide for Georgia (USA) (St Simons Island) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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

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More about the USA

How warm is it in St Simons Island in January?

Daytime temperatures usually reach 16°C in St Simons Island in January, falling to 5°C at night.

How sunny is it in St Simons Island in January?

There are normally 6 hours of bright sunshine each day in St Simons Island in January - that's 58% of daylight hours.

How warm is the sea around St Simons Island in January?

The average sea temperature around St Simons Island in January is 18°C.

Does it rain in St Simons Island in January?

There are usually 9 days with some rain in St Simons Island in January and the average monthly rainfall is 85mm.

St Simons Island January sunrise & sunset times

Browse the sunrise and sunset times for St Simons Island in January 2025. Select a month to view St Simons Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 07:24 17:35
Thursday, 16th January 2025 07:24 17:47
Friday, 31st January 2025 07:18 18:00

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