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 12:33 PM (1.8ft) and the next low tide is at 1:54 AM (0.1ft), 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, Nov 1 | L 1:54 AM 0.1ftH 12:33 PM 1.8ft |
| Mon, Nov 2 | L 2:57 AM 0.2ftH 12:48 PM 1.8ft |
| Tue, Nov 3 | L 4:00 AM 0.4ftH 1:03 PM 1.7ft |
| Wed, Nov 4 | L 5:06 AM 0.5ftH 1:18 PM 1.6ftL 7:18 PM 1.3ftH 10:42 PM 1.3ft |
| Thu, Nov 5 | L 6:09 AM 0.7ftH 1:27 PM 1.5ftL 7:33 PM 1.1ft |
| Fri, Nov 6 | H 12:42 AM 1.4ftL 7:12 AM 0.9ftH 1:33 PM 1.5ftL 7:57 PM 0.9ft |
| Sat, Nov 7 | H 2:15 AM 1.5ftL 8:09 AM 1.0ftH 1:36 PM 1.4ftL 8:27 PM 0.7ft |
| Sun, Nov 8 | H 3:36 AM 1.5ftL 9:06 AM 1.2ftH 1:33 PM 1.4ftL 9:00 PM 0.5ft |
Predicted for 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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