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

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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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