Today's high and low tide times for Chatham, MA, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Chatham, MA, the next high tide is at 2:09 AM (1.93 m) and the next low tide is at 8:27 AM (0.15 m), based on harmonic predictions for Chatham Harbor, Aunt Lydias Cove.
All high and low tides for Chatham 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 Chatham.
| Date | Tides (local time · height) |
|---|---|
| Wed, Jun 17 | H 2:09 AM 1.93 mL 8:27 AM 0.15 mH 2:30 PM 2.23 mL 9:12 PM 0.05 m |
| Thu, Jun 18 | H 3:00 AM 1.92 mL 9:21 AM 0.17 mH 3:21 PM 2.19 mL 10:03 PM 0.09 m |
| Fri, Jun 19 | H 3:51 AM 1.91 mL 10:15 AM 0.20 mH 4:12 PM 2.12 mL 10:54 PM 0.15 m |
| Sat, Jun 20 | H 4:45 AM 1.88 mL 11:12 AM 0.24 mH 5:06 PM 2.03 mL 11:48 PM 0.22 m |
| Sun, Jun 21 | H 5:36 AM 1.86 mL 12:09 PM 0.27 mH 6:03 PM 1.94 m |
| Mon, Jun 22 | L 12:42 AM 0.29 mH 6:33 AM 1.83 mL 1:09 PM 0.30 mH 7:00 PM 1.85 m |
| Tue, Jun 23 | L 1:36 AM 0.35 mH 7:27 AM 1.82 mL 2:06 PM 0.32 mH 8:00 PM 1.77 m |
Predicted from Chatham Harbor, Aunt Lydias Cove, 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 Chatham.
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