St Simons Island weather in May 2025

Expect 28°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in St Simons Island in May. Check more long-term weather averages for St Simons Island in May before you book your next holiday to Georgia (USA) in 2025/2026.

  • 28°C maximum daytime temperature in May in St Simons Island28
    28°C max day temperature
  • 10 hours of sunshine per day
  • 8 days with some rainfall in May in St Simons Island8
    8 days with some rainfall
  • 18°C minimum night-time temperature in May in St Simons Island18
    18°C min night temperature
  • 14 hours of daylight per day in May in St Simons Island14
    14 hours of daylight per day
  • Moderate heat & humidity in May in St Simons IslandM
    Moderate heat & humidity
  • 89 mm monthly rainfall in May in St Simons Island89
    89 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in May in St Simons Island10
    10 (Very High) UV index
  • 23°C sea temperature in May in St Simons Island23
    23°C sea temperature

More about St Simons Island

St Simons Island by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Georgia

Booking.com: Latest worldwide hotel deals

  • Check out latest hotel deals worldwide with Booking.com
  • Find trending hotels, popular destinations & more
  • Search for specific destinations & dates or by hotel type
Go to Booking.com deal >>

View all Booking.com offers

The May 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)

Back to top

More about the USA

How hot is it in St Simons Island in May?

Daytime temperatures usually reach 28°C in St Simons Island in May with moderate heat and humidity, falling to 18°C at night.

How sunny is it in St Simons Island in May?

There are normally 10 hours of bright sunshine each day in St Simons Island in May - that's 70% of daylight hours.

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

The average sea temperature around St Simons Island in May is 23°C.

Does it rain in St Simons Island in May?

There are usually 8 days with some rain in St Simons Island in May and the average monthly rainfall is 89mm.

St Simons Island May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 05:41 19:05
Friday, 16th May 2025 05:29 19:15
Saturday, 31st May 2025 05:22 19:24

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^