Marine Weather and Tide Forecast for Tybee Island, GA
 | Sunrise 6:17 AM Sunset 8:31 PM Moonrise 4:21 AM Moonset 7:33 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
AMZ362 Coastal Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 744 Pm Edt Sat Jun 13 2026
Tonight - SW winds 10 to 15 kt. Seas 2 ft. Wave detail: S 2 ft at 4 seconds and se 1 foot at 8 seconds.
Sun - SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: S 2 ft at 4 seconds and E 1 foot at 9 seconds. A slight chance of showers and tstms in the afternoon.
Sun night - SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave detail: S 3 ft at 4 seconds and E 1 foot at 9 seconds. A chance of tstms with a slight chance of showers in the evening.
Mon - SW winds 10 to 15 kt with gusts to 20 kt. Seas 2 to 3 ft. Wave detail: S 3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers with a slight chance of tstms in the afternoon.
Mon night - SW winds 15 to 20 kt with gusts to 25 kt. Seas 2 to 3 ft. Wave detail: S 3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers. A chance of tstms, mainly in the evening.
Tue - W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave detail: sw 3 ft at 5 seconds and E 1 foot at 9 seconds. A chance of showers with a slight chance of tstms in the morning, then showers likely with a chance of tstms in the afternoon.
Tue night - SW winds 15 to 20 kt with gusts to 25 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Showers likely with a chance of tstms.
Wed - SW winds 15 to 20 kt. Seas 3 to 4 ft. Showers likely with a chance of tstms.
Wed night - SW winds 15 to 20 kt. Seas 3 to 4 ft.
Thu - SW winds 15 to 20 kt. Seas 3 to 4 ft.
Thu night - SW winds 15 to 20 kt. Seas 3 to 4 ft.
winds and seas higher in and near tstms.
winds and seas higher in and near tstms.
AMZ300 744 Pm Edt Sat Jun 13 2026
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia - Subtropical high pressure will remain the primary influence across the local waters through the weekend. A cold front is expected to move through by the middle of next week.
7 Day Forecast for Marine Location Near Tybee Island, GA
NEW! Add second zone forecast
| Tybee Light Click for Map Sat -- 12:56 AM EDT -0.00 feet Low Tide Sat -- 04:25 AM EDT Moonrise Sat -- 06:16 AM EDT Sunrise Sat -- 06:42 AM EDT 6.53 feet High Tide Sat -- 01:01 PM EDT -0.75 feet Low Tide Sat -- 07:12 PM EDT 8.39 feet High Tide Sat -- 07:20 PM EDT Moonset Sat -- 08:30 PM EDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Tybee Light, Savannah River, Georgia, Tide feet
| 12 am |
| 0.5 |
| 1 am |
| -0 |
| 2 am |
| 0.6 |
| 3 am |
| 2.1 |
| 4 am |
| 3.8 |
| 5 am |
| 5.4 |
| 6 am |
| 6.3 |
| 7 am |
| 6.5 |
| 8 am |
| 5.9 |
| 9 am |
| 4.7 |
| 10 am |
| 3 |
| 11 am |
| 1.3 |
| 12 pm |
| -0.1 |
| 1 pm |
| -0.8 |
| 2 pm |
| -0.1 |
| 3 pm |
| 1.6 |
| 4 pm |
| 3.9 |
| 5 pm |
| 6.1 |
| 6 pm |
| 7.7 |
| 7 pm |
| 8.4 |
| 8 pm |
| 8.1 |
| 9 pm |
| 7.1 |
| 10 pm |
| 5.4 |
| 11 pm |
| 3.5 |
| Savannah River entrance (between jetties) (depth 11 ft) Click for Map Flood direction 286 true Ebb direction 110 true Sat -- 02:12 AM EDT 0.00 knots Slack Sat -- 04:26 AM EDT Moonrise Sat -- 04:37 AM EDT 1.75 knots Max Flood Sat -- 06:16 AM EDT Sunrise Sat -- 08:09 AM EDT -0.00 knots Slack Sat -- 11:13 AM EDT -1.91 knots Max Ebb Sat -- 02:07 PM EDT 0.00 knots Slack Sat -- 04:57 PM EDT 2.60 knots Max Flood Sat -- 07:20 PM EDT Moonset Sat -- 08:30 PM EDT Sunset Sat -- 08:44 PM EDT -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
Savannah River entrance (between jetties) (depth 11 ft), South Carolina Current, knots
| 12 am |
| -2 |
| 1 am |
| -1.4 |
| 2 am |
| -0.3 |
| 3 am |
| 0.9 |
| 4 am |
| 1.6 |
| 5 am |
| 1.7 |
| 6 am |
| 1.4 |
| 7 am |
| 0.9 |
| 8 am |
| 0.1 |
| 9 am |
| -0.8 |
| 10 am |
| -1.6 |
| 11 am |
| -1.9 |
| 12 pm |
| -1.8 |
| 1 pm |
| -1.3 |
| 2 pm |
| -0.2 |
| 3 pm |
| 1.2 |
| 4 pm |
| 2.3 |
| 5 pm |
| 2.6 |
| 6 pm |
| 2.3 |
| 7 pm |
| 1.7 |
| 8 pm |
| 0.8 |
| 9 pm |
| -0.3 |
| 10 pm |
| -1.4 |
| 11 pm |
| -2.1 |
FXUS62 KCHS 132344 AFDCHS
Area Forecast Discussion National Weather Service Charleston SC 744 PM EDT Sat Jun 13 2026
WHAT HAS CHANGED
Key Message 1 and the Aviation section were updated.
KEY MESSAGES
- 1) Unseasonably hot weather with strong to severe thunderstorms will continue through at least Sunday.
- 2) Showers and thunderstorms expected to continue into early next week with a persistent summertime pattern.
- 3) Minor coastal flooding possible along Charleston and Colleton County coasts during evening high tides this weekend into early next week.
DISCUSSION
KEY MESSAGE 1: Unseasonably hot weather with strong to severe thunderstorms will continue through at least Sunday.
On Sunday, the H5 ridge weakens slightly across the region. At the sfc, a trough is forecast to slide east across the region, supporting winds from the WSW. The WSW winds may keep the sea breeze pinned along the coast through early afternoon, then should begin to drift inland. Similar to today, temperatures should exceed 90 degrees before noon, then peak in the mid to upper 90s by mid afternoon. The hot temperatures combined with dewpoints in the 70s should yield heat index values between 105 to 110 degrees across the coastal counties. A Heat Advisory could be needed for the coastal counties for Sunday. In addition, moderate instability and DCAPE may support another round of severe pulse-type thunderstorms. SPC has highlighted the region with a marginal risk for severe thunderstorms.
KEY MESSAGE 2: Showers and thunderstorms expected to continue into early next week with a persistent summertime pattern.
A classic early-summer pattern will remain established across southeast South Carolina and southeast Georgia through the weekend into early next week. Atlantic high pressure will remain anchored offshore while mid-lvl ridging across the western Atlantic periodically interacts with embedded shortwave perturbations rotating around the ridge periphery. Low-lvl flow remains generally south to southwest, maintaining a rich maritime tropical airmass through next week. This pattern will yield afternoon showers and thunderstorms each afternoon and evening.
Forecast soundings indicate PWAT values ranging from 1.9 to 2.3 inches through the period (near the 90th percentile for mid- June). This combined with surface dewpoints in the low to mid 70s should yield MLCAPE values between 1500-3000 J/kg amid peak heating. Mid-lvl lapse rates remain relatively modest with values ranging from 5.5-6.0 C/km, suggesting pulse-type convection will dominate through the period. Expect the afternoon seabreeze to push inland each day and collide with other outflow boundaries, yielding the primary focus for convection initiation. Weak deep-layer shear should limit storm organization, however slow storm motions between 10-15 kts combined with anomalously high moisture content will support efficient warm-rain processes.
Little change regarding the overall synoptic pattern on Monday and Tuesday as ensemble means from the GEFS and the EPS maintain subtropical ridging offshore with weak troughing across the Tennessee and lower Mississippi Valley. At the surface, a weak cold front will approach the region on Monday, and then push offshore by Tuesday evening. Convection coverage will likely increase from late morning near the coastline before expanding more inland in the afternoons. Highest PoPs will likely occur along and west of I-95 corridor where seabreeze interactions maximize.
KEY MESSAGE 3: Minor coastal flooding possible along Charleston and Colleton County coasts during evening high tides this weekend into early next week.
Breezy south-southeasterly winds post sea breeze each day along with the upcoming lunar Perigee (June 14th) and New Moon (June 15th) should result in elevated tidal departures above 1/2 ft this weekend into early next week, setting the stage for minor coastal flooding along the Charleston and Colleton County coasts during evening high tide cycles. The latest TWL forecast calls for 6.9 - 7.1 ft MLLW in the Charleston Harbor this evening, and similar water levels are possible during evening high tides into early next week as astronomical influences peak and breezy onshore winds persist. Coastal Flood Advisories could eventually be needed for the Charleston and Colleton county coastlines.
AVIATION /00Z SUNDAY THROUGH THURSDAY/
The 00z TAF period begins with VFR conditions at KCHS, KJZI, and KSAV. Remnant evening shower and thunderstorm activity looks as though it will remain away from the TAF sites. Overnight, there are no significant fog or stratus concerns. The main forecast challenge will be the potential for afternoon and evening shower and thunderstorm activity on Sunday. Current thinking is that scattered coverage right along the coast could impact the TAF sites. Therefore, we have added a PROB30 for the 18-22z time period at all 3 sites.
Extended Aviation Outlook: VFR conditions expected to prevail at CHS/JZI/SAV terminals. However, brief flight restrictions are possible with afternoon showers and/or thunderstorms through early next week.
MARINE
Tonight: The pressure pattern will support southwest winds between 10 to 15 kts. Wave heights are forecast to remain between 2 to 3 ft.
Sunday through Wednesday: Expect generally south-southwesterly winds with speeds ranging from 10 to 15 kts as Atlantic high pressure persists across the local waters. A pre-frontal trough will develop on Sunday yielding an enhanced pressure gradient leading to wind gusts up to 21-23 kt (possibly 25 kt) overnight on Monday and overnight on Tuesday. Therefore, there could be need for Small Craft Advisories for portions of Monday and Tuesday regarding the elevated winds as the front advances towards the region. The cold front should pass offshore by Tuesday evening, and then rapidly move further away across the Atlantic. Seas should remain below 6 feet throughout the period.
Rip Currents: A Moderate Risk of rip currents is forecast for Sunday and Monday along the southeast South Carolina and southeast Georgia beaches given the combination of elevated winds and a lingering south-southwesterly swell.
CLIMATE
Record High Temperatures:
June 14 KCHS: 99/2010 KCXM: 97/1981
June 15 KCHS: 98/2015
Record High Minimum Temperatures:
June 14 KCHS: 79/2010 KCXM: 81/2010
June 15 KCHS: 80/2010
June 18 KCHS: 78/2015
June 19 KCHS: 79/2025 KCXM: 81/2025 KSAV: 79/1881
CHS WATCHES/WARNINGS/ADVISORIES
GA...None.
SC...None.
MARINE...None.
Area Forecast Discussion National Weather Service Charleston SC 744 PM EDT Sat Jun 13 2026
WHAT HAS CHANGED
Key Message 1 and the Aviation section were updated.
KEY MESSAGES
- 1) Unseasonably hot weather with strong to severe thunderstorms will continue through at least Sunday.
- 2) Showers and thunderstorms expected to continue into early next week with a persistent summertime pattern.
- 3) Minor coastal flooding possible along Charleston and Colleton County coasts during evening high tides this weekend into early next week.
DISCUSSION
KEY MESSAGE 1: Unseasonably hot weather with strong to severe thunderstorms will continue through at least Sunday.
On Sunday, the H5 ridge weakens slightly across the region. At the sfc, a trough is forecast to slide east across the region, supporting winds from the WSW. The WSW winds may keep the sea breeze pinned along the coast through early afternoon, then should begin to drift inland. Similar to today, temperatures should exceed 90 degrees before noon, then peak in the mid to upper 90s by mid afternoon. The hot temperatures combined with dewpoints in the 70s should yield heat index values between 105 to 110 degrees across the coastal counties. A Heat Advisory could be needed for the coastal counties for Sunday. In addition, moderate instability and DCAPE may support another round of severe pulse-type thunderstorms. SPC has highlighted the region with a marginal risk for severe thunderstorms.
KEY MESSAGE 2: Showers and thunderstorms expected to continue into early next week with a persistent summertime pattern.
A classic early-summer pattern will remain established across southeast South Carolina and southeast Georgia through the weekend into early next week. Atlantic high pressure will remain anchored offshore while mid-lvl ridging across the western Atlantic periodically interacts with embedded shortwave perturbations rotating around the ridge periphery. Low-lvl flow remains generally south to southwest, maintaining a rich maritime tropical airmass through next week. This pattern will yield afternoon showers and thunderstorms each afternoon and evening.
Forecast soundings indicate PWAT values ranging from 1.9 to 2.3 inches through the period (near the 90th percentile for mid- June). This combined with surface dewpoints in the low to mid 70s should yield MLCAPE values between 1500-3000 J/kg amid peak heating. Mid-lvl lapse rates remain relatively modest with values ranging from 5.5-6.0 C/km, suggesting pulse-type convection will dominate through the period. Expect the afternoon seabreeze to push inland each day and collide with other outflow boundaries, yielding the primary focus for convection initiation. Weak deep-layer shear should limit storm organization, however slow storm motions between 10-15 kts combined with anomalously high moisture content will support efficient warm-rain processes.
Little change regarding the overall synoptic pattern on Monday and Tuesday as ensemble means from the GEFS and the EPS maintain subtropical ridging offshore with weak troughing across the Tennessee and lower Mississippi Valley. At the surface, a weak cold front will approach the region on Monday, and then push offshore by Tuesday evening. Convection coverage will likely increase from late morning near the coastline before expanding more inland in the afternoons. Highest PoPs will likely occur along and west of I-95 corridor where seabreeze interactions maximize.
KEY MESSAGE 3: Minor coastal flooding possible along Charleston and Colleton County coasts during evening high tides this weekend into early next week.
Breezy south-southeasterly winds post sea breeze each day along with the upcoming lunar Perigee (June 14th) and New Moon (June 15th) should result in elevated tidal departures above 1/2 ft this weekend into early next week, setting the stage for minor coastal flooding along the Charleston and Colleton County coasts during evening high tide cycles. The latest TWL forecast calls for 6.9 - 7.1 ft MLLW in the Charleston Harbor this evening, and similar water levels are possible during evening high tides into early next week as astronomical influences peak and breezy onshore winds persist. Coastal Flood Advisories could eventually be needed for the Charleston and Colleton county coastlines.
AVIATION /00Z SUNDAY THROUGH THURSDAY/
The 00z TAF period begins with VFR conditions at KCHS, KJZI, and KSAV. Remnant evening shower and thunderstorm activity looks as though it will remain away from the TAF sites. Overnight, there are no significant fog or stratus concerns. The main forecast challenge will be the potential for afternoon and evening shower and thunderstorm activity on Sunday. Current thinking is that scattered coverage right along the coast could impact the TAF sites. Therefore, we have added a PROB30 for the 18-22z time period at all 3 sites.
Extended Aviation Outlook: VFR conditions expected to prevail at CHS/JZI/SAV terminals. However, brief flight restrictions are possible with afternoon showers and/or thunderstorms through early next week.
MARINE
Tonight: The pressure pattern will support southwest winds between 10 to 15 kts. Wave heights are forecast to remain between 2 to 3 ft.
Sunday through Wednesday: Expect generally south-southwesterly winds with speeds ranging from 10 to 15 kts as Atlantic high pressure persists across the local waters. A pre-frontal trough will develop on Sunday yielding an enhanced pressure gradient leading to wind gusts up to 21-23 kt (possibly 25 kt) overnight on Monday and overnight on Tuesday. Therefore, there could be need for Small Craft Advisories for portions of Monday and Tuesday regarding the elevated winds as the front advances towards the region. The cold front should pass offshore by Tuesday evening, and then rapidly move further away across the Atlantic. Seas should remain below 6 feet throughout the period.
Rip Currents: A Moderate Risk of rip currents is forecast for Sunday and Monday along the southeast South Carolina and southeast Georgia beaches given the combination of elevated winds and a lingering south-southwesterly swell.
CLIMATE
Record High Temperatures:
June 14 KCHS: 99/2010 KCXM: 97/1981
June 15 KCHS: 98/2015
Record High Minimum Temperatures:
June 14 KCHS: 79/2010 KCXM: 81/2010
June 15 KCHS: 80/2010
June 18 KCHS: 78/2015
June 19 KCHS: 79/2025 KCXM: 81/2025 KSAV: 79/1881
CHS WATCHES/WARNINGS/ADVISORIES
GA...None.
SC...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| FPKG1 - 8670870 - Fort Pulaski, GA | 3 mi | 50 min | W 5.1G | 80°F | 83°F | 29.98 | ||
| 41033 | 29 mi | 102 min | SW 9.7G | 83°F | 83°F | 29.97 | 76°F | |
| 41067 | 29 mi | 90 min | 83°F | 2 ft | ||||
| ACXS1 - ACE Basin Reserve, SC | 42 mi | 65 min | 0 | 81°F | 29.95 | 78°F | ||
| 41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA | 44 mi | 40 min | WSW 14G | 82°F | 29.99 | 78°F | ||
| SAXG1 - Sapelo Island Reserve, GA | 48 mi | 50 min | SSW 8.9 | 78°F | 30.01 | 74°F |
Wind History for Fort Pulaski, GA
toggle option: (graph/table)
Link to 5 hour of 5 minute data for KHXD
Terminal Aerodrome Forecast (TAF) for KHXD
Wind History Graph: HXD
(wind in knots)
GEOS Local Image of southeast
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Charleston, SC,
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