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Marine Weather and Tide Forecast for Seabrook Island, SC

April 29, 2025 1:22 AM EDT (05:22 UTC)
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Sunrise 6:32 AM   Sunset 8:01 PM
Moonrise 6:40 AM   Moonset 9:45 PM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
   
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NOTE: Zones were updated 3/20/2025
AMZ330 Charleston Harbor- 1216 Am Edt Tue Apr 29 2025

Rest of tonight - E winds 10 kt, becoming se 5 to 10 kt late.

Tue - E winds 5 to 10 kt, becoming se 10 to 15 kt with gusts to 20 kt in the afternoon.

Tue night - SE winds 10 to 15 kt, becoming S 5 kt after midnight.

Wed - S winds 5 to 10 kt.

Wed night - S winds 5 to 10 kt.

Thu - SW winds 5 kt, becoming S in the afternoon.

Thu night - S winds 10 kt.

Fri - SW winds 10 to 15 kt.

Fri night - SW winds 10 kt. A chance of showers and tstms.

Sat - SW winds 10 kt. A chance of showers with a slight chance of tstms.

Sat night - N winds 5 to 10 kt. A slight chance of showers.
winds and waves higher in and near tstms.
unless otherwise noted, waves 1 foot or less.
charleston harbor water temperature 73 degrees.
AMZ300 1216 Am Edt Tue Apr 29 2025

Synopsis for the coastal waters of south coastal south carolina and north coastal georgia - High pressure will prevail through at least Thursday, with a cold front to impact the region late in the week.

7 Day Forecast for Marine Location Near Seabrook Island, SC
   
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Tide / Current for Kiawah River Bridge, South Carolina
  
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Kiawah River Bridge
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Mon -- 03:12 AM EDT     -0.45 feet Low Tide
Mon -- 06:36 AM EDT     Sunrise
Mon -- 06:53 AM EDT     Moonrise
Mon -- 09:23 AM EDT     5.88 feet High Tide
Mon -- 03:17 PM EDT     -0.73 feet Low Tide
Mon -- 07:59 PM EDT     Sunset
Mon -- 09:29 PM EDT     Moonset
Mon -- 09:49 PM EDT     7.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Kiawah River Bridge, South Carolina does not exist in database. Press Edit above and select a valid nearby location.

Kiawah River Bridge, South Carolina, Tide feet
12
am
3.7
1
am
1.8
2
am
0.3
3
am
-0.4
4
am
-0.1
5
am
1
6
am
2.6
7
am
4.1
8
am
5.2
9
am
5.8
10
am
5.7
11
am
4.8
12
pm
3.3
1
pm
1.6
2
pm
0.1
3
pm
-0.7
4
pm
-0.5
5
pm
0.8
6
pm
2.6
7
pm
4.5
8
pm
6.1
9
pm
7.1
10
pm
7.4
11
pm
6.8

Tide / Current for Charleston Harbor Entrance, South Carolina Current
  
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Charleston Harbor Entrance
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Mon -- 12:32 AM EDT     -3.35 knots Max Ebb
Mon -- 03:39 AM EDT     0.00 knots Slack
Mon -- 06:00 AM EDT     1.97 knots Max Flood
Mon -- 06:35 AM EDT     Sunrise
Mon -- 06:52 AM EDT     Moonrise
Mon -- 09:36 AM EDT     -0.00 knots Slack
Mon -- 12:47 PM EDT     -2.92 knots Max Ebb
Mon -- 03:40 PM EDT     0.01 knots Slack
Mon -- 06:20 PM EDT     2.39 knots Max Flood
Mon -- 07:59 PM EDT     Sunset
Mon -- 09:28 PM EDT     Moonset
Mon -- 10:10 PM EDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
        
  Sorry, Charleston Harbor Entrance, South Carolina Current does not exist in database. Press Edit above and select a valid nearby location.

Charleston Harbor Entrance, South Carolina Current, knots
12
am
-3.2
1
am
-3.2
2
am
-2.3
3
am
-1
4
am
0.5
5
am
1.6
6
am
2
7
am
1.8
8
am
1.4
9
am
0.7
10
am
-0.5
11
am
-1.7
12
pm
-2.7
1
pm
-2.9
2
pm
-2.2
3
pm
-1
4
pm
0.5
5
pm
1.7
6
pm
2.4
7
pm
2.3
8
pm
1.9
9
pm
1.3
10
pm
0.2
11
pm
-1.2

Area Discussion for Charleston, SC
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FXUS62 KCHS 290409 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 1209 AM EDT Tue Apr 29 2025

SYNOPSIS
High pressure will prevail through at least Thursday, with a cold front to impact the region late in the week.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/
No major changes were made for the midnight update. Lows were nudged up a tad across Southeast Georgia where temperatures were running slightly warmer than expected. Could a little shallow ground fog form in some places prior to daybreak, but no major impacts are likely. Lows will range from the lower-mid 50s across interior Southeast South Carolina to the lower 60s south of I-16 in Georgia with upper 60s/near 70 at the beaches.

SHORT TERM /6 AM TUESDAY MORNING THROUGH THURSDAY/
Sharp upper level ridge axis will edge over the southeast region through the entirety of the short term forecast period, while surface high pressure slowly migrates from the Mid Atlantic down to off the southeast coast. Axis of instability will linger through the Gulf Coast states including southern Georgia, suggesting there could be a few pop-up showers close by in southern Georgia. Keeping the southeast Georgia forecast dry at this juncture...but later shifts might consider adding some low end pops to that area.

Otherwise, rain-free conditions anticipated through the short- term period. Highs will largely warm to the lower to middle 80s on Tuesday away from the coast...the middle and upper 80s Wednesday and Thursday. Lows largely spanning the 50s, warmer along the coast.

LONG TERM /THURSDAY NIGHT THROUGH MONDAY/
Larger scale troughing is expected to develop/advance across the eastern CONUS late week and into the weekend. Associated surface cold front presses into the southeast region during the Friday/Friday night period, briefly stalling across the region heading into the weekend, bringing our next period of unsettled weather. Right now, the best chances for showers and some thunderstorms are during the Friday/Friday night period, with precip chances lingering into Saturday and possibly Sunday.
Given only modest instability and shear, severe weather potential is looking limited, although interestingly CIPS analog severe probs do show at least a lower end chance for severe storms across the region on Friday.

Late weekend into early next week: Strong high pressure is looking to develop through the deep south, driving the boundary southward out of the area. This brings a bit of a cool down late in the forecast period, with temperatures back to around normal for early May.

AVIATION /04Z TUESDAY THROUGH SATURDAY/
29/06 TAF Discussion: KCHS/KJZI/KSAV: VFR through 06z Wednesday.

Extended Aviation Outlook: Largely VFR. Showers and a few thunderstorms are possible Friday into Saturday and might lead to brief flight restrictions during that time.

MARINE
Overnight: East winds will average 10-15 kt with seas 3-5 ft.

Tuesday through Saturday: High pressure will prevail Tuesday through Thursday night. Cold front edges into the region Friday and into the weekend. Winds and seas expected to remain below advisory levels through Friday. However, increasing southwest winds Friday night into Saturday may lead to seas building toward 6 feet in the South Carolina nearshore waters.

Rip Currents: East to southeasterly flow along with easterly swell of 2 ft every 8 seconds will maintain a moderate rip current risk for all beaches on Tuesday.

TIDES/COASTAL FLOODING
Another round of coastal flooding is possible with the Tuesday evening high tide, likely only for Charleston County and coastal Colleton County.

CHS WATCHES/WARNINGS/ADVISORIES
GA...None.
SC...None.
MARINE...None.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
ACXS1 - ACE Basin Reserve, SC 17 mi97 min0 67°F 30.2763°F
CHTS1 17 mi52 minESE 9.9G12 71°F 73°F30.30
41076 25 mi107 min 4 ft
41066 26 mi74 minE 7.8G14 71°F 70°F30.2864°F
41033 27 mi74 minE 7.8G14 71°F30.27
41067 27 mi87 min 70°F3 ft
41029 - Capers Nearshore (CAP 2) 30 mi74 minESE 9.7G14 71°F 71°F30.2862°F
41004 - EDISTO - 41 NM Southeast of Charleston, SC 55 mi42 minESE 9.7G14 72°F 71°F30.3058°F


Wind History for Charleston, SC
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Airport Reports
   
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KJZI CHARLESTON EXECUTIVE,SC 10 sm27 minE 0410 smOvercast66°F61°F83%30.30
KCHS CHARLESTON AFB/INTL,SC 21 sm26 mincalm10 smA Few Clouds61°F59°F94%30.30

Weather Map
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GEOS Local Image of Southeast  
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Charleston, SC,





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