St Simons Island weather in May 2025

Expect 82°F 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.

82
82°F max day temperature
10
10 hours of sunshine per day
8
8 days with some rainfall
64
64°F min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
3.5
3.5 inches of monthly rainfall
10
10 (Very High) UV index
73
73°F sea temperature

More about St Simons Island

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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) | Imperial (°F)

More about the USA

How hot is it in St Simons Island in May?

Daytime temperatures usually reach 82°F in St Simons Island in May with moderate heat and humidity, falling to 64°F 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 73°F.

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 3.5 inches.

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.

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

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

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Georgia - quick facts
Flight time^✝	9.5 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Culture
Tourist info	Georgia Department of Economic Development