Today's high and low tide times for St Augustine, FL, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In St Augustine, FL, the next high tide is at 9:25 AM (1.65 m) and the next low tide is at 3:07 AM (0.36 m), based on harmonic predictions for Fernandina Beach, Amelia River.
All high and low tides for St Augustine 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 St Augustine.
| Date | Tides (local time · height) |
|---|---|
| Sun, May 31 | L 3:07 AM 0.36 mH 9:25 AM 1.65 mL 3:46 PM 0.46 mH 9:34 PM 1.44 m |
| Mon, Jun 1 | L 3:46 AM 0.36 mH 10:01 AM 1.64 mL 4:25 PM 0.48 mH 10:07 PM 1.42 m |
| Tue, Jun 2 | L 4:25 AM 0.37 mH 10:37 AM 1.62 mL 5:01 PM 0.50 mH 10:43 PM 1.41 m |
| Wed, Jun 3 | L 5:04 AM 0.37 mH 11:13 AM 1.60 mL 5:43 PM 0.51 mH 11:22 PM 1.40 m |
| Thu, Jun 4 | L 5:46 AM 0.39 mH 11:52 AM 1.58 mL 6:25 PM 0.51 m |
| Fri, Jun 5 | H 12:04 AM 1.41 mL 6:31 AM 0.40 mH 12:37 PM 1.56 mL 7:10 PM 0.51 m |
| Sat, Jun 6 | H 12:52 AM 1.43 mL 7:22 AM 0.42 mH 1:25 PM 1.54 mL 7:58 PM 0.49 m |
Predicted from Fernandina Beach, Amelia River, 0.5 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 St Augustine.
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