92°
Sunny
7%
73
Camden County, GA · Atlantic Ocean
Cumberland Island National Seashore
101 Wheeler Street, St. Marys, GA 31558
Georgia's largest barrier island, accessible only by passenger ferry from St. Marys, Cumberland is a near-pristine 17-mile wilderness of undeveloped beach, maritime forest, salt marsh, and free-ranging feral horses, with the haunting ruins of the Carnegies' Dungeness mansion.
Today's Conditions
Great day for a beach walk.
Hot — hydrate and seek shade
Full NWS forecast for This Afternoon
Sunny. High near 92, with temperatures falling to around 89 in the afternoon. Heat index values as high as 103. Southeast wind around 12 mph, with gusts as high as 18 mph.
Tonight
Mostly clear. Low around 77, with temperatures rising to around 78 overnight. Heat index values as high as 100. South wind 3 to 12 mph, with gusts as high as 20 mph.
Weather
- 92°F air — hot — hydrate and seek shade
- Sunny skies — clear conditions
Safety
- UV 11 (extreme) — spf 50+ mandatory, limit mid-day exposure
74 /100
great
64 Sunbathe
78 Walk
76 Photo
Best for walking today
Water level 0.5 ft above predicted
Observed water level is running higher than the astronomical tide prediction. Expect a narrower beach, faster-rising water, and stronger near-shore currents than the tide chart suggests.
Atmosphere
Air Temp
92°F
Clear
Wind
12 mph
SE
Rain
7%
This Afternoon
UV Peak
11 Extreme
High 11 AM–02 PM · burn in ~18m
Burn-free before 09 AM & after 05 PM
Tomorrow
92°F
Sunny
Water
Water Temp
—
Wave Height
2.3 ft
SSE swell
Barometer
30.00 inHg
1016 hPa
Rip Current Risk · Regional Reference
No zone-specific NWS forecast for this beach (GAZ166)
The JAX office's Surf Zone Forecast doesn't cover this beach's forecast zone directly. Nearby coastal zones it does cover are listed below — regional reference only, not a substitute for the conditions at this specific beach.
- FLZ124 Nassau-Duval-Flagler-St. Johns — Yulee, Fernandina Beach, Jacksonville Beach, n/a
- GAZ154 Glynn-Camden — Brunswick, St. Simons, Country Club Estates, n/a
Sun & Moon
Sunrise
6:34 AM
Sunset
8:29 PM
Moon · 18%
Waxing Crescent
Neap tides — smaller range
Tides
| Time | Type | Height |
|---|---|---|
| 12:30 AM | High | 6.7 ft |
| 6:27 AM | Low | -0.3 ft |
| 1:02 PM | High | 6.2 ft |
| 6:50 PM | Low | 0.1 ft |
| Time | Type | Height |
|---|---|---|
| 1:16 AM | High | 6.3 ft |
| 7:16 AM | Low | -0.1 ft |
| 1:51 PM | High | 6.1 ft |
| 7:47 PM | Low | 0.4 ft |
| Time | Type | Height |
|---|---|---|
| 2:02 AM | High | 5.9 ft |
| 8:05 AM | Low | 0.1 ft |
| 2:41 PM | High | 6.1 ft |
| 8:46 PM | Low | 0.7 ft |
| Time | Type | Height |
|---|---|---|
| 2:48 AM | High | 5.5 ft |
| 8:55 AM | Low | 0.3 ft |
| 3:32 PM | High | 6.0 ft |
| 9:44 PM | Low | 0.9 ft |
| Time | Type | Height |
|---|---|---|
| 3:37 AM | High | 5.3 ft |
| 9:44 AM | Low | 0.4 ft |
| 4:23 PM | High | 5.9 ft |
| 10:38 PM | Low | 1.0 ft |
| Time | Type | Height |
|---|---|---|
| 4:27 AM | High | 5.1 ft |
| 10:32 AM | Low | 0.5 ft |
| 5:15 PM | High | 5.9 ft |
| 11:30 PM | Low | 1.0 ft |
| Time | Type | Height |
|---|---|---|
| 5:19 AM | High | 5.0 ft |
| 11:20 AM | Low | 0.5 ft |
| 6:06 PM | High | 6.0 ft |
High/low predictions from NOAA station 8720030, refreshed on every build. Times shown local.
7-Day Beach Day Forecast
92°
Sunny
9%
72
91°
Sunny then Chance Showers And Thunderstorms
40%
30
91°
Chance Showers And Thunderstorms
43%
29
89°
Chance Showers And Thunderstorms
40%
33
88°
Showers And Thunderstorms Likely
63%
23
86°
Chance Showers And Thunderstorms
50%
33
What to Bring Today
- critical SPF 50 sunscreen UV index 11 — very high
- recommended Sturdy umbrella + sand anchor 12 mph wind
- critical Extra water / electrolytes 92°F - heat risk
- recommended Cooling towel or hat sustained heat
Always remember water bottle, trash bag (leave no trace).
Beach Info
Parking
Parking available at the NPS Visitor Center / ferry dock in St. Marys, GA. No parking on the island itself — ferry-only access.
Dogs
No pets permitted on the ferry. Only ADA service animals may board. Emotional support animals and pets are not allowed.
Entry Fee
$15 park entrance fee; ferry fares $44 adult / $42 senior 62+ / $34 youth 6–15 / free under 5
Address
101 Wheeler Street, St. Marys, GA 31558
Amenities
Frequently Asked
Is it safe to swim at Cumberland Island National Seashore today?
Cumberland Island National Seashore shows a live water-quality reading (bacteria levels) and today's swim-safety score at the top of this page, refreshed on every update. No lifeguards are on duty, so check the day's conditions and swim with caution. Always review the current advisories, surf, and rip-current notes before getting in the water.
Is Cumberland Island National Seashore dog-friendly?
No pets permitted on the ferry. Only ADA service animals may board. Emotional support animals and pets are not allowed.
Is there an entry fee at Cumberland Island National Seashore?
$15 park entrance fee; ferry fares $44 adult / $42 senior 62+ / $34 youth 6–15 / free under 5
Are there lifeguards at Cumberland Island National Seashore?
No lifeguards are stationed at Cumberland Island National Seashore. Swim at your own risk and keep close watch on children.
What amenities are at Cumberland Island National Seashore?
Amenities at Cumberland Island National Seashore include restrooms, campground (Sea Camp, Stafford, backcountry sites), historic ruins, wilderness hiking, wildlife viewing (wild horses, sea turtles).
When is the water warmest at Cumberland Island National Seashore?
Atlantic water temperatures peak in August. Northern beaches (ME, NH, MA) run cool — typically 60-68°F at the summer peak. Mid-Atlantic (NJ, DE, MD, VA) hits 74-76°F. The Carolinas and Florida Atlantic warm into the 80s and stay swimmable from May through October.
Where is Cumberland Island National Seashore located?
Cumberland Island National Seashore is in Camden County, GA, at 101 Wheeler Street, St. Marys, GA 31558.
Nearby Beaches
Updated · Data from NOAA, NWS