- Low 10:32 AM 0.1 ft
- High 9:24 PM 1.8 ft
First light 6:20 AMSunrise 6:45 AMSunset 5:40 PMLast light 6:05 PM
Port Isabel, TX Tide Chart Today & Tomorrow
NOAA tide station 8779770 · Texas · updated Nov 12, 2026
Fri, Nov 13: High tide 10:22 PM (1.8 ft); low tide 11:20 AM (0.1 ft).
Tide todayHigh 10:22 PMLow 11:20 AM
Today's range1.7 ft0.1 → 1.8 ft (MLLW)
Water levelLoading…NOAA gauge 8779770
WindLoading…
Sun6:46 AM – 5:39 PMFirst light 6:21 AM · Last light 6:04 PM
Water level: NOAA CO-OPS station 8779770 (preliminary, MLLW). Wind: observed at NOAA CO-OPS station 8779770 (Port Isabel), 0 mi away; forecast from the NOAA National Weather Service (api.weather.gov).
Port Isabel tides — next 3 days
Shaded = night · heights in feet above MLLW · local time
- Low 11:20 AM 0.1 ft
- High 10:22 PM 1.8 ft
First light 6:21 AMSunrise 6:46 AMSunset 5:39 PMLast light 6:04 PM
- Low 12:09 PM 0.2 ft
- High 10:56 PM 1.7 ft
First light 6:21 AMSunrise 6:46 AMSunset 5:39 PMLast light 6:04 PM
- Low 12:54 PM 0.3 ft
- High 11:12 PM 1.7 ft
First light 6:22 AMSunrise 6:47 AMSunset 5:39 PMLast light 6:04 PM
- Low 1:37 PM 0.4 ft
- High 11:14 PM 1.6 ft
First light 6:23 AMSunrise 6:48 AMSunset 5:38 PMLast light 6:03 PM
Best fishing times today in Port Isabel
Today is a fair fishing day (solunar + tide)
5/10
Waxing crescent · 17% lit · Full moon Tue, Nov 24
Major fishing times
- Moon underfoot2:28 am – 4:28 am≈ Moving water, falling
- Moon overhead2:53 pm – 4:53 pmSunset≈ Moving water, rising
Minor fishing times
- Moonrise10:09 am – 11:09 amNear slack (low 11:20 am)
- Moonset8:38 pm – 9:38 pmNear slack (high 10:22 pm)
Fishing times for the next 7 days
| TodayNov 13 | 5/10Fair | Major 2:28 am – 4:28 am · 2:53 pm – 4:53 pm Minor 10:09 am – 11:09 am · 8:38 pm – 9:38 pm |
|---|---|---|
| SatNov 14 | 5/10Fair | Major 3:17 am – 5:17 am · 3:41 pm – 5:41 pm Minor 10:53 am – 11:53 am · 9:33 pm – 10:33 pm |
| SunNov 15 | 7/10Good | Major 4:05 am – 6:05 am · 4:28 pm – 6:28 pm Minor 11:31 am – 12:31 pm · 10:28 pm – 11:28 pm |
| MonNov 16 | 6/10Good | Major 4:50 am – 6:50 am · 5:12 pm – 7:12 pm Minor 12:06 pm – 1:06 pm · 11:23 pm – 12:23 am |
| TueNov 17 | 6/10Good | Major 5:34 am – 7:34 am · 5:55 pm – 7:55 pm Minor 12:38 pm – 1:38 pm |
| WedNov 18 | 6/10Good | Major 6:16 am – 8:16 am · 6:38 pm – 8:38 pm Minor 12:17 am – 1:17 am · 1:09 pm – 2:09 pm |
| ThuNov 19 | 5/10Fair | Major 6:59 am – 8:59 am · 7:21 pm – 9:21 pm Minor 1:12 am – 2:12 am · 1:40 pm – 2:40 pm |
How this rating works
Solunar theory says fish feed more when the moon is overhead or underfoot (major periods, about 2 hours) and around moonrise and moonset (minor periods, about 1 hour). We score each day from 1 to 10 by checking when those periods happen, using the NOAA tide predictions for station 8779770 and the sun times for this spot:
| Base | every day starts at 1 | 1 |
|---|---|---|
| Sunrise / sunset | a period overlaps sunrise or sunset ±1 h: major +2, minor +1 (max 3) (Moon overhead × sunset +2) | 2 |
| Tide | a NOAA high or low falls inside a period (tide change): major +2, minor +1; moving water during a major period (no high/low within 1 h of it) +1 (max 4) (Moon underfoot – moving water +1; Moon overhead – moving water +1) | 2 |
| Moon phase | within 2 days of a new or full moon +2, within 4 days +1 (today: 4.4 days) | 0 |
| Today | 5, rounded | 5/10 |
1–3 poor · 4–5 fair · 6–7 good · 8–10 excellent. Solunar times are a rule of thumb, not a guarantee: weather, water temperature and bait matter a lot. Tide changes and moving water are specific to this station, so nearby spots can score differently.
Solunar periods calculated for 26.06, -97.22 (moon times from astronomical equations, local time). Not a fishing forecast.
Best fishing times today in Port Isabel
Today is a poor fishing day (solunar + tide)
3/10
Waxing crescent · 11% lit · Full moon Tue, Nov 24
Major fishing times
- Moon underfoot1:36 am – 3:36 am
- Moon overhead2:02 pm – 4:02 pm≈ Moving water, rising
Minor fishing times
- Moonrise9:21 am – 10:21 am
- Moonset7:44 pm – 8:44 pmNear slack (high 9:24 pm)
Fishing times for the next 7 days
| TodayNov 12 | 3/10Poor | Major 1:36 am – 3:36 am · 2:02 pm – 4:02 pm Minor 9:21 am – 10:21 am · 7:44 pm – 8:44 pm |
|---|---|---|
| FriNov 13 | 5/10Fair | Major 2:28 am – 4:28 am · 2:53 pm – 4:53 pm Minor 10:09 am – 11:09 am · 8:38 pm – 9:38 pm |
| SatNov 14 | 5/10Fair | Major 3:17 am – 5:17 am · 3:41 pm – 5:41 pm Minor 10:53 am – 11:53 am · 9:33 pm – 10:33 pm |
| SunNov 15 | 7/10Good | Major 4:05 am – 6:05 am · 4:28 pm – 6:28 pm Minor 11:31 am – 12:31 pm · 10:28 pm – 11:28 pm |
| MonNov 16 | 6/10Good | Major 4:50 am – 6:50 am · 5:12 pm – 7:12 pm Minor 12:06 pm – 1:06 pm · 11:23 pm – 12:23 am |
| TueNov 17 | 6/10Good | Major 5:34 am – 7:34 am · 5:55 pm – 7:55 pm Minor 12:38 pm – 1:38 pm |
| WedNov 18 | 6/10Good | Major 6:16 am – 8:16 am · 6:38 pm – 8:38 pm Minor 12:17 am – 1:17 am · 1:09 pm – 2:09 pm |
How this rating works
Solunar theory says fish feed more when the moon is overhead or underfoot (major periods, about 2 hours) and around moonrise and moonset (minor periods, about 1 hour). We score each day from 1 to 10 by checking when those periods happen, using the NOAA tide predictions for station 8779770 and the sun times for this spot:
| Base | every day starts at 1 | 1 |
|---|---|---|
| Sunrise / sunset | a period overlaps sunrise or sunset ±1 h: major +2, minor +1 (max 3) | 0 |
| Tide | a NOAA high or low falls inside a period (tide change): major +2, minor +1; moving water during a major period (no high/low within 1 h of it) +1 (max 4) (Moon overhead – moving water +1) | 1 |
| Moon phase | within 2 days of a new or full moon +2, within 4 days +1 (today: 3.4 days) | 1 |
| Today | 3, rounded | 3/10 |
1–3 poor · 4–5 fair · 6–7 good · 8–10 excellent. Solunar times are a rule of thumb, not a guarantee: weather, water temperature and bait matter a lot. Tide changes and moving water are specific to this station, so nearby spots can score differently.
Solunar periods calculated for 26.06, -97.22 (moon times from astronomical equations, local time). Not a fishing forecast.
Port Isabel tide table — next 7 days
| Thu, Nov 12 | Low 10:32 AM 0.09 ft | High 9:24 PM 1.83 ft | ||
|---|---|---|---|---|
| Fri, Nov 13 | Low 11:20 AM 0.13 ft | High 10:22 PM 1.79 ft | ||
| Sat, Nov 14 | Low 12:09 PM 0.19 ft | High 10:56 PM 1.73 ft | ||
| Sun, Nov 15 | Low 12:54 PM 0.28 ft | High 11:12 PM 1.65 ft | ||
| Mon, Nov 16 | Low 1:37 PM 0.39 ft | High 11:14 PM 1.56 ft | ||
| Tue, Nov 17 | Low 2:28 PM 0.55 ft | High 11:13 PM 1.46 ft | ||
| Wed, Nov 18 | Low 3:44 PM 0.73 ft | High 11:12 PM 1.36 ft | ||
| Thu, Nov 19 | Low 5:46 AM 0.91 ft | High 11:21 AM 1.13 ft | Low 5:05 PM 0.92 ft | High 11:09 PM 1.28 ft |
| Fri, Nov 20 | Low 5:57 AM 0.65 ft | High 1:18 PM 1.30 ft | Low 6:38 PM 1.11 ft | High 10:53 PM 1.24 ft |
Times are local (standard/daylight). Heights in feet above MLLW.
About the tide at Port Isabel
NOAA station 8779770 is 5.0 mi southwest of South Padre Island, TX, the nearest beach or town with its own page here. It is a harmonic reference station (predicted directly from its own tidal constituents).
Port Isabel has a diurnal tide: one high tide and one low tide on most days (only 29% of days have two high tides). The average rise or fall between high and low tide is 1.1 ft, growing to about 1.9 ft at spring tides (around new and full moon) and shrinking to about 0.8 ft at neap tides (around the quarter moons). The highest tide predicted in the next 12 months is 2.2 ft on October 29, 2026 at 11:06 PM; the lowest is -1.0 ft on January 21, 2027 at 8:06 AM, and 188 low tides in that period drop below zero (MLLW).
- Tide type
- Diurnal
- Mean range
- 1.1 ft
- Spring / neap range
- 1.9 ft / 0.8 ft
- Average higher high
- 1.4 ft
- Average lower low
- 0.0 ft
- Highest tide, next 12 months
- 2.2 ft · Oct 29, 2026
- Lowest tide, next 12 months
- -1.0 ft · Jan 21, 2027
- Negative low tides (12 months)
- 188
This week
From Fri, Nov 13 to Thu, Nov 19, high tides at Port Isabel range from 1.1 ft to 1.8 ft; the biggest is on Fri, Nov 13 at 10:22 PM. The lowest low is 0.1 ft on Fri, Nov 13 at 11:20 AM. Low tides in daylight (sunrise to sunset): Fri 11:20 AM (0.1 ft); Sat 12:09 PM (0.2 ft); Sun 12:54 PM (0.3 ft); Mon 1:37 PM (0.4 ft); Tue 2:28 PM (0.5 ft); Wed 3:44 PM (0.7 ft); Thu 5:05 PM (0.9 ft).
Tide statistics computed from NOAA high/low predictions for Oct 2026 – Oct 2027; heights in feet above MLLW. Predictions are astronomical and do not include weather.
Gear for Port Isabel
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Beaches & towns near this station
- South Padre Island, TX 5.0 mi northeast
Nearby tide stations
- Queen Isabella Causeway (West End), TX 1.6 mi northeast
- South Bay Entrance, TX 2.2 mi east
- Queen Isabella Causeway (East End), TX 3.1 mi northeast
- South Padre Island C.G. Station, TX 3.1 mi east
- Padre Island (South End), TX 3.7 mi east
- South Padre Island, Brazos Santiago Pass, TX 3.8 mi east
- San Martin Lake Channel, TX 6.6 mi southwest
- Realitos Pennisula, Laguna Madre, TX 14.6 mi north
About this station
- NOAA station ID
- 8779770
- Type
- Reference (harmonic) station
- Coordinates
- 26.0612, -97.2155
- Datum
- MLLW (feet)
- Time zone
- America/Chicago
FAQ
When is high tide today at Port Isabel, TX?
On Fri, Nov 13, predicted high tide at Port Isabel, TX is at 10:22 PM local time.
When is low tide today at Port Isabel, TX?
On Fri, Nov 13, predicted low tide at Port Isabel, TX is at 11:20 AM local time.
When are high and low tide tomorrow at Port Isabel, TX?
On Sat, Nov 14, predicted high tide is at 10:56 PM (1.7 ft); low tide is at 12:09 PM (0.2 ft) (local time).
What is the tide range at Port Isabel, TX?
The average range between high and low tide is 1.1 ft; about 1.9 ft at spring tides and 0.8 ft at neap tides. The highest tide predicted in the next 12 months is 2.2 ft on October 29, 2026 (NOAA predictions, MLLW).
Where does this tide data come from?
Predictions come from NOAA's Center for Operational Oceanographic Products and Services (CO-OPS), station 8779770. Heights are in feet relative to Mean Lower Low Water (MLLW).