Explore / Station 9451163
Sumner Island, AK tide times
56.4100°N · 133.7930°W
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Tide times for Sumner Island, AK
Today, Monday, July 13, in Sumner Island, AK, high tide is at 1:09 PM (11.0 ft), and low tide is at 6:37 AM (-2.5 ft) and 6:25 PM (3.2 ft) (local time). Sunrise is at 3:25 AM and sunset is at 8:38 PM local time. Heights are in feet above MLLW, the chart datum.
The moon is a new moon today, 3% illuminated — expect larger-than-average (spring) tides in the coming days.
7-day tide table (local time)
| Day | High tides | Low tides | Sunrise | Sunset |
|---|---|---|---|---|
| Today, Mon, Jul 13 | 1:09 PM (11.0 ft) | 6:37 AM (-2.5 ft) 6:25 PM (3.2 ft) | 3:25 AM | 8:38 PM |
| Tue, Jul 14 | 12:19 AM (14.1 ft) 1:54 PM (11.5 ft) | 7:25 AM (-2.9 ft) 7:20 PM (2.7 ft) | 3:27 AM | 8:37 PM |
| Wed, Jul 15 | 1:12 AM (14.2 ft) 2:37 PM (11.9 ft) | 8:11 AM (-3.0 ft) 8:12 PM (2.2 ft) | 3:28 AM | 8:35 PM |
| Thu, Jul 16 | 2:02 AM (13.9 ft) 3:18 PM (12.1 ft) | 8:54 AM (-2.7 ft) 9:03 PM (1.8 ft) | 3:30 AM | 8:34 PM |
| Fri, Jul 17 | 2:52 AM (13.2 ft) 3:59 PM (12.2 ft) | 9:35 AM (-2.1 ft) 9:55 PM (1.6 ft) | 3:31 AM | 8:33 PM |
| Sat, Jul 18 | 3:41 AM (12.3 ft) 4:39 PM (12.2 ft) | 10:15 AM (-1.2 ft) 10:47 PM (1.5 ft) | 3:33 AM | 8:31 PM |
| Sun, Jul 19 | 4:33 AM (11.2 ft) 5:19 PM (12.0 ft) | 10:53 AM (0.0 ft) 11:43 PM (1.5 ft) | 3:35 AM | 8:30 PM |
NOAA harmonic predictions for station 9451163, datum MLLW, station local time. Updated daily. Predictions are for planning, not navigation.
Sumner Island, AK tide questions
- What time is high tide in Sumner Island, AK today?
- High tide in Sumner Island, AK today (Monday, July 13) is at 1:09 PM (11.0 ft), local station time (local time). Heights are measured in feet above MLLW.
- What time is low tide in Sumner Island, AK today?
- Low tide in Sumner Island, AK today (Monday, July 13) is at 6:37 AM (-2.5 ft) and 6:25 PM (3.2 ft), local station time (local time).
- How big are the tides in Sumner Island, AK this week?
- Over the next seven days the water at Sumner Island, AK spans 17.2 ft — from a low of -3.0 ft at 8:11 AM on Wed, Jul 15 to a high of 14.2 ft at 1:12 AM on Wed, Jul 15.
- When is the next minus tide at Sumner Island, AK?
- The next minus tide at Sumner Island, AK is -2.5 ft at 6:37 AM on Mon, Jul 13. Minus tides drop below the MLLW zero line and expose the most shoreline — the best windows for tidepooling, clamming, and beachcombing.
- How accurate are tide predictions for Sumner Island, AK?
- Predictions come from NOAA harmonic analysis of long-term water level records at this station, which is why tide tables can be published years in advance. Astronomical timing is very reliable, but actual water level can run higher or lower with sustained wind, barometric pressure, and river flow — Perigee overlays live observed water levels on the chart above so you can see today's difference.
About station 9451163
Sumner Island, AK is NOAA tide station 9451163, at 56.4100°N, 133.7930°W. Perigee charts its tide predictions and six-minute water level observations live from NOAA CO-OPS, alongside wind, temperature, and the sun and moon over this spot. Everything on this page is also available from the free Perigee API and MCP server. Browse every gauge on this coast on the Alaska tide charts page, or read how tide predictions work.
Plan around this station
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