Today's high and low tide times for Port Isabel, TX, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Port Isabel, TX, the next high tide is at 7:45 PM (0.54 m) and the next low tide is at 10:12 AM (0.09 m), based on harmonic predictions for Port Isabel.
All high and low tides for Port Isabel today, in local time (America/Chicago). Heights are metres above chart datum.
High (H) and low (L) tide times and heights for the next seven days at Port Isabel.
| Date | Tides (local time · height) |
|---|---|
| Sun, May 31 | L 10:12 AM 0.09 mH 7:45 PM 0.54 m |
| Mon, Jun 1 | L 10:51 AM 0.07 mH 9:24 PM 0.54 m |
| Tue, Jun 2 | L 11:33 AM 0.07 m |
| Wed, Jun 3 | H 1:00 AM 0.54 mL 12:18 PM 0.08 m |
| Thu, Jun 4 | H 2:33 AM 0.54 mL 1:06 PM 0.10 m |
| Fri, Jun 5 | H 3:54 AM 0.52 mL 2:00 PM 0.14 m |
| Sat, Jun 6 | H 5:27 AM 0.49 mL 2:57 PM 0.18 m |
Predicted from Port Isabel, 1.5 km away (reliability: high — a close match — expect predictions within a few minutes of the published station table).
These are astronomical tide predictions — the rise and fall driven by the moon and sun, computed by harmonic analysis. They do not include weather effects: a strong onshore wind, low barometric pressure or a storm surge can push the real water level above the predicted high, and offshore winds or high pressure can hold it below the predicted low. For navigation or any safety-critical decision, always check the official tide tables and a live water-level gauge for Port Isabel.
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