Heights in feet above Mean Lower Low Water (MLLW). Dots are NOAA's predicted highs and lows; the line between them is our interpolation. Shaded: night.
| Tide | Time | Height |
|---|---|---|
| High tide | 1:58 AM | 15.62 ft |
| Low tide | 7:38 AM | 1.82 ft |
| High tide | 1:47 PM | 18.17 ft |
| Low tide | 8:22 PM | -3.00 ft |
| Day | High tides | Low tides |
|---|---|---|
| Today Tue, Oct 27 | 1:58 AM 15.6 ft1:47 PM 18.2 ft | 7:38 AM 1.8 ft8:22 PM -3.0 ft |
| Tomorrow Wed, Oct 28 | 2:43 AM 15.3 ft2:27 PM 18.0 ft | 8:18 AM 2.5 ft9:06 PM -2.7 ft |
| Thu, Oct 29 | 3:31 AM 14.7 ft3:11 PM 17.3 ft | 9:01 AM 3.3 ft9:55 PM -1.8 ft |
| Fri, Oct 30 | 4:23 AM 13.8 ft4:01 PM 16.2 ft | 9:51 AM 4.3 ft10:51 PM -0.7 ft |
| Sat, Oct 31 | 5:25 AM 13.0 ft5:01 PM 14.8 ft | 10:51 AM 5.2 ft11:57 PM 0.4 ft |
| Sun, Nov 1 | 5:37 AM 12.5 ft5:18 PM 13.6 ft | 11:11 AM 5.8 ft |
| Mon, Nov 2 | 6:55 AM 12.7 ft6:48 PM 12.8 ft | 12:11 AM 1.3 ft12:48 PM 5.5 ft |
Orange: measured by NOAA's sensor, last 24 hours (6-minute data, preliminary). Dashed: predicted tide, through the next 24 hours. The prediction contains only the astronomical tide; wind, air pressure and river flow move the real water level away from it.
Boca de Quadra is a subordinate station: NOAA computes its tides from Ketchikan with fixed time and height corrections.
On Tuesday, October 27, high tide at Boca de Quadra is at 1:58 AM (15.6 ft) and 1:47 PM (18.2 ft); low tide is at 7:38 AM (1.8 ft) and 8:22 PM (-3.0 ft) (AKDT, heights above MLLW). The table above lists the next 7 days.
The highest predicted tide in the next 12 months is 18.7 ft on December 24, 2026 at 12:19 PM. The largest tides fall a day or two after a full or new moon, especially when the Moon is closest to Earth.
Yes — on 178 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -4.2 ft on July 5, 2027 at 8:26 AM. Minus tides expose the most shoreline, which is why tide-poolers look for them.
Station local time (AKDT at the time this page was built), with daylight saving time applied where the area observes it — the same convention as NOAA's own tide tables.
From NOAA CO-OPS, the U.S. government tide station network (tidesandcurrents.noaa.gov); the predictions are public domain. Boca de Quadra is a subordinate station: NOAA derives its times and heights from the reference station Ketchikan with fixed corrections. The curve between highs and lows is our interpolation. This page is not for navigation.