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 | 2:36 AM | 8.77 ft |
| Low tide | 7:39 AM | 2.59 ft |
| High tide | 2:00 PM | 11.07 ft |
| Low tide | 8:30 PM | -1.71 ft |
| Day | High tides | Low tides |
|---|---|---|
| Today Tue, Oct 27 | 2:36 AM 8.8 ft2:00 PM 11.1 ft | 7:39 AM 2.6 ft8:30 PM -1.7 ft |
| Tomorrow Wed, Oct 28 | 3:25 AM 8.6 ft2:40 PM 11.0 ft | 8:20 AM 3.0 ft9:16 PM -1.7 ft |
| Thu, Oct 29 | 4:18 AM 8.3 ft3:25 PM 10.8 ft | 9:05 AM 3.5 ft10:07 PM -1.4 ft |
| Fri, Oct 30 | 5:16 AM 8.0 ft4:18 PM 10.2 ft | 9:57 AM 3.9 ft11:03 PM -0.8 ft |
| Sat, Oct 31 | 6:19 AM 7.8 ft5:20 PM 9.5 ft | 11:02 AM 4.2 ft |
| Sun, Nov 1 | 6:27 AM 7.8 ft5:33 PM 8.8 ft | 12:05 AM -0.2 ft11:21 AM 4.3 ft |
| Mon, Nov 2 | 7:35 AM 8.1 ft6:56 PM 8.3 ft | 12:12 AM 0.4 ft12:49 PM 4.0 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.
Markham is a subordinate station: NOAA computes its tides from Toke Point with fixed time and height corrections.
All Washington tide stations →
On Tuesday, October 27, high tide at Markham is at 2:36 AM (8.8 ft) and 2:00 PM (11.1 ft); low tide is at 7:39 AM (2.6 ft) and 8:30 PM (-1.7 ft) (PDT, heights above MLLW). The table above lists the next 7 days.
The highest predicted tide in the next 12 months is 11.9 ft on December 24, 2026 at 12:25 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 170 days in the next 12 months the low tide drops below 0 ft (MLLW). The lowest is -2.9 ft on July 5, 2027 at 8:29 AM. Minus tides expose the most shoreline, which is why tide-poolers look for them.
Station local time (PDT 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. Markham is a subordinate station: NOAA derives its times and heights from the reference station Toke Point with fixed corrections. The curve between highs and lows is our interpolation. This page is not for navigation.