St Simons Island weather in July 2025

Q: How hot is it in St Simons Island in July?

Daytime temperatures usually reach 32°C in St Simons Island in July with very high heat and humidity, falling to 23°C at night.

Q: How sunny is it in St Simons Island in July?

There are normally 9 hours of bright sunshine each day in St Simons Island in July - that's 65% of daylight hours.

Q: How warm is the sea around St Simons Island in July?

The average sea temperature around St Simons Island in July is 28°C.

Q: Does it rain in St Simons Island in July?

There are usually 14 days with some rain in St Simons Island in July and the average monthly rainfall is 149mm.

Q: What is the chance of a cyclone in St Simons Island in July?

On average less than 1 day in July in St Simons Island is likely to be affected by the passage of one or more tropical storms.

Expect 90°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in St Simons Island in July. Check more long-term weather averages for St Simons Island in July before you book your next holiday to Georgia (USA) in 2025/2026.

90
90°F max day temperature
9
9 hours of sunshine per day
14
14 days with some rainfall
73
73°F min night temperature
14
14 hours of daylight per day
VH
Very High heat & humidity
5.9
5.9 inches of monthly rainfall
11
11 (Extreme) UV index
82
82°F 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

Cosmos: up to £600 off USA & Canada tours

Sale

Save up to £600 per couple on USA & Canada escorted tours
Book tours to southern USA & national parks in 2024
Travel between 1st Jan & 31st Dec 2025 (inclusive)

Go to Cosmos deal >>

Expires at 23:59 on Thursday 5th Dec 2024 · View all Cosmos offers

The July 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 July?

Daytime temperatures usually reach 90°F in St Simons Island in July with very high heat and humidity, falling to 73°F at night.

How sunny is it in St Simons Island in July?

There are normally 9 hours of bright sunshine each day in St Simons Island in July - that's 65% of daylight hours.

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

The average sea temperature around St Simons Island in July is 82°F.

Does it rain in St Simons Island in July?

There are usually 14 days with some rain in St Simons Island in July and the average monthly rainfall is 5.9 inches.

What is the chance of a hurricane in St Simons Island in July?

On average less than 1 day in July in St Simons Island is likely to be affected by the passage of one or more tropical storms.

St Simons Island July sunrise & sunset times

Browse the sunrise and sunset times for St Simons Island in July 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
Tuesday, 1st July 2025	05:25	19:34
Wednesday, 16th July 2025	05:33	19:30
Thursday, 31st July 2025	05:42	19:21

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

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