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 11:57 AM (3.42 m) and the next low tide is at 5:42 AM (0.73 m), 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) |
|---|---|
| Sun, May 31 | L 5:42 AM 0.73 mH 11:57 AM 3.42 mL 6:15 PM 0.54 m |
| Mon, Jun 1 | H 12:27 AM 3.09 mL 6:21 AM 0.79 mH 12:33 PM 3.40 mL 6:54 PM 0.58 m |
| Tue, Jun 2 | H 1:03 AM 3.01 mL 6:57 AM 0.83 mH 1:12 PM 3.36 mL 7:36 PM 0.64 m |
| Wed, Jun 3 | H 1:42 AM 2.96 mL 7:36 AM 0.87 mH 1:51 PM 3.32 mL 8:15 PM 0.69 m |
| Thu, Jun 4 | H 2:21 AM 2.92 mL 8:15 AM 0.90 mH 2:30 PM 3.28 mL 8:54 PM 0.74 m |
| Fri, Jun 5 | H 3:00 AM 2.90 mL 9:00 AM 0.91 mH 3:15 PM 3.24 mL 9:39 PM 0.78 m |
| Sat, Jun 6 | H 3:45 AM 2.91 mL 9:48 AM 0.91 mH 4:03 PM 3.20 mL 10:27 PM 0.80 m |
Predicted from 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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