Today's high and low tide times for Marathon, FL, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Marathon, FL, the next high tide is at 8:03 AM (0.6ft) and the next low tide is at 9:39 AM (0.6ft), based on harmonic predictions for VACA KEY, USCG STATION, FLORIDA BAY.
All high and low tides for Marathon today, in local time (America/New York). Heights are metres above chart datum.
High (H) and low (L) tide times and heights for the next seven days at Marathon.
| Date | Tides (local time · height) |
|---|---|
| Sun, Nov 1 | H 8:03 AM 0.6ftL 9:39 AM 0.6ftH 3:54 PM 1.1ft |
| Mon, Nov 2 | L 12:27 AM 0.1ftH 8:54 AM 0.6ftL 10:42 AM 0.6ftH 4:42 PM 1.1ft |
| Tue, Nov 3 | L 1:18 AM 0.2ftH 9:36 AM 0.7ftL 11:57 AM 0.6ftH 7:27 PM 1.0ft |
| Wed, Nov 4 | L 2:09 AM 0.3ftH 10:15 AM 0.7ftL 1:18 PM 0.6ftH 9:15 PM 0.9ft |
| Thu, Nov 5 | L 2:57 AM 0.3ftH 10:48 AM 0.8ftL 2:39 PM 0.5ftH 10:33 PM 0.9ft |
| Fri, Nov 6 | L 3:39 AM 0.4ftH 11:21 AM 0.8ftL 4:00 PM 0.4ftH 11:45 PM 0.9ft |
| Sat, Nov 7 | L 4:18 AM 0.5ftH 11:54 AM 0.9ftL 5:12 PM 0.3ft |
| Sun, Nov 8 | H 12:48 AM 0.8ftL 4:51 AM 0.5ftH 12:24 PM 1.0ftL 6:15 PM 0.2ft |
Predicted for VACA KEY, USCG STATION, FLORIDA BAY, 1.6 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 Marathon.
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