Tides Today & Tomorrow in Southwest Pass, Vermilion Bay, LA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Southwest Pass, Vermilion Bay, LA.
Next low tide : in 7h 27m at 6:31 pm (-0.3 ft)
Next high tide (tomorrow) : 5:12 am (1.6 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8765551
Common Questions About Tides

Southwest Pass, Vermilion Bay, LA Tides - May 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:321.64:380.46:257:45First Quarter1Wed
2Thu1:541.65:410.58:191.26:247:45First Quarter2Thu
3Fri2:101.56:410.68:161.06:237:46Waxing Gibbous3Fri
4Sat1:261.32:211.57:370.88:300.86:227:47Waxing Gibbous4Sat
5Sun2:421.52:281.48:280.98:500.66:227:47Waxing Gibbous5Sun
6Mon3:461.62:301.49:181.19:130.36:217:48Full Moon6Mon
7Tue4:421.82:281.510:111.39:420.16:207:48Full Moon7Tue
8Wed5:361.92:211.511:201.510:17-0.16:197:49Full Moon8Wed
9Thu6:292.010:58-0.36:197:50Full Moon9Thu
10Fri7:262.111:46-0.36:187:50Waning Gibbous10Fri
11Sat8:292.16:177:51Waning Gibbous11Sat
12Sun9:382.012:42-0.36:167:52Waning Gibbous12Sun
13Mon10:461.91:44-0.26:167:52Third Quarter13Mon
14Tue11:401.82:52-0.16:157:53Third Quarter14Tue
15Wed12:201.74:040.17:111.46:157:53Third Quarter15Wed
16Thu12:511.65:190.47:131.16:147:54Third Quarter16Thu
17Fri12:081.41:171.56:370.67:400.86:137:55Waning Crescent17Fri
18Sat1:451.51:381.57:530.98:120.56:137:55Waning Crescent18Sat
19Sun3:071.61:551.49:051.18:440.26:127:56Waning Crescent19Sun
20Mon4:151.82:011.410:171.39:160.06:127:57New Moon20Mon
21Tue5:131.99:48-0.16:117:57New Moon21Tue
22Wed6:041.910:20-0.26:117:58New Moon22Wed
23Thu6:511.910:54-0.26:117:58New Moon23Thu
24Fri7:401.911:33-0.16:107:59Waxing Crescent24Fri
25Sat8:331.96:108:00Waxing Crescent25Sat
26Sun9:331.812:15-0.16:098:00Waxing Crescent26Sun
27Mon10:341.71:030.06:098:01Waxing Crescent27Mon
28Tue11:201.71:530.26:098:01First Quarter28Tue
29Wed11:511.62:430.36:098:02First Quarter29Wed
30Thu12:131.63:330.46:088:02First Quarter30Thu
31Fri12:281.54:240.67:190.96:088:03First Quarter31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8765551)

Common Questions About Southwest Pass, Vermilion Bay, LA Tides

Show All
What time does the tide turn (slack tide) in Southwest Pass, Vermilion Bay, LA today?

Slack tide in Southwest Pass, Vermilion Bay, LA is approximately 11:51 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Southwest Pass, Vermilion Bay, LA?

Southwest Pass, Vermilion Bay, LA is currently in a transitional phase. Tonight's moon is 71% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Southwest Pass, Vermilion Bay, LA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Southwest Pass, Vermilion Bay, LA?

Tide predictions for Southwest Pass, Vermilion Bay, LA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Southwest Pass, Vermilion Bay, LA?

Tide data for Southwest Pass, Vermilion Bay, LA is sourced from NOAA Station #8765551. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8765551.

What is the moon phase in Southwest Pass, Vermilion Bay, LA tonight?

Tonight the moon over Southwest Pass, Vermilion Bay, LA is Waxing Gibbous (71% illuminated). This places Southwest Pass, Vermilion Bay, LA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA