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 1:27 AM (0.31 m) and the next low tide is at 8:06 AM (0.03 m), 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, May 31 | H 1:27 AM 0.31 mL 8:06 AM 0.03 mH 4:00 PM 0.22 mL 6:39 PM 0.19 m |
| Mon, Jun 1 | H 1:54 AM 0.33 mL 8:54 AM 0.03 mH 4:51 PM 0.21 mL 7:18 PM 0.19 m |
| Tue, Jun 2 | H 2:21 AM 0.34 mL 9:39 AM 0.03 mH 5:42 PM 0.20 mL 8:00 PM 0.18 m |
| Wed, Jun 3 | H 2:48 AM 0.34 mL 10:21 AM 0.04 mH 6:27 PM 0.19 mL 8:45 PM 0.17 m |
| Thu, Jun 4 | H 3:18 AM 0.33 mL 11:03 AM 0.05 mH 7:09 PM 0.19 mL 9:36 PM 0.16 m |
| Fri, Jun 5 | H 4:00 AM 0.32 mL 11:42 AM 0.07 mH 7:45 PM 0.18 mL 10:33 PM 0.15 m |
| Sat, Jun 6 | H 5:18 AM 0.30 mL 12:24 PM 0.09 mH 8:21 PM 0.19 mL 11:33 PM 0.14 m |
Predicted from 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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