Today's high and low tide times for Portland, ME, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Portland, ME, the next high tide is at 2:24 AM (11.9ft) and the next low tide is at 8:42 AM (1.3ft), based on harmonic predictions for PORTLAND.
All high and low tides for Portland 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 Portland.
| Date | Tides (local time · height) |
|---|---|
| Tue, Sep 15 | H 2:24 AM 11.9ftL 8:42 AM 1.3ftH 2:51 PM 10.6ftL 8:51 PM 2.1ft |
| Wed, Sep 16 | H 3:06 AM 11.5ftL 9:30 AM 1.8ftH 3:39 PM 9.8ftL 9:33 PM 2.8ft |
| Thu, Sep 17 | H 3:51 AM 11.0ftL 10:21 AM 2.3ftH 4:30 PM 9.2ftL 10:21 PM 3.5ft |
| Fri, Sep 18 | H 4:39 AM 10.5ftL 11:15 AM 2.7ftH 5:27 PM 8.7ftL 11:12 PM 4.0ft |
| Sat, Sep 19 | H 5:30 AM 10.1ftL 12:09 PM 2.9ftH 6:30 PM 8.5ft |
| Sun, Sep 20 | L 12:09 AM 4.3ftH 6:27 AM 9.9ftL 1:09 PM 3.0ftH 7:30 PM 8.5ft |
| Mon, Sep 21 | L 1:09 AM 4.4ftH 7:24 AM 9.8ftL 2:03 PM 2.9ftH 8:24 PM 8.7ft |
| Tue, Sep 22 | L 2:06 AM 4.2ftH 8:18 AM 9.9ftL 2:51 PM 2.7ftH 9:12 PM 9.2ft |
Predicted for PORTLAND, 1 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 Portland.
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