Coronation Island Tides Today
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Coronation Island runs a mean tidal range of about 8.2 ft. This month the highest water, 13.3 ft, comes on the afternoon of Nov 25, and the lowest, a -2.4 ft minus tide, on the evening of Nov 25.
| Low tide | 1:14 AM | 1.1 ft |
| High tide | 8:05 AM | 9.7 ft |
| Low tide | 2:11 PM | 3.5 ft |
| High tide | 7:55 PM | 9.0 ft |
Today on the water at Coronation Island
Today at Coronation Island: high tide at 8:05 AM (9.7 ft) and 7:55 PM (9.0 ft), low tide at 1:14 AM (1.1 ft) and 2:11 PM (3.5 ft). The National Weather Service forecast for Tuesday is light rain with SE winds 25 to 30 mph, 51°F. Wind that strong can hold water in or push it out, so the real tide may run above or below these predictions. In effect now: Small Craft Advisory. Sunrise is at 7:05 AM and sunset at 4:14 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Overnight | Slight Chance Light Rain | SE 15 to 20 mph | 44°F |
| Tuesday | Light Rain | SE 25 to 30 mph | 51°F |
Forecast: National Weather Service point forecast for this location.
Where Coronation Island is
Coronation Island sits at 55.9033° N, 134.1180° W on Southeast Alaska's Inside Passage, about 15 mi west of Edna Bay, AK. The station here is a subordinate tide prediction point. NOAA has no gauge in the water at this spot; its times and heights are published as offsets from a reference gauge, named below. The closest gauge measuring live water level is Port Alexander, Baranof Island (NOAA 9451054), 31.3 mi away, and high and low water here run on average about 20 min earlier than there. The nearest weather station is Cape Decision, AK, a shore station reporting wind and, at most sites, water temperature, 6.8 mi away.
The tide at Coronation Island
Coronation Island has a semidiurnal tide: two highs and two lows a day of about the same size, roughly 12 hours 25 minutes apart. This month's predictions average 1.9 high tides a day here. For the water around it: Inside Passage tides are large and mixed semidiurnal, two highs and two lows a day with ranges of 12 to 20 ft that drive fast currents in the narrows.
About this station
- NOAA predicts tides here from Sitka, station 9451600. High tide comes about 16 min earlier and low tide about 17 min earlier than there.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA publishes no datums for this point. Its predictions are offsets from Sitka and are referenced to MLLW there. Source: NOAA CO-OPS station 9450829. The tide times and heights are published as time and height offsets from its reference gauge; TidalMap republishes them daily and does not alter them.
Tide stations near Coronation Island
- Affleck Canal entrance, Kuiu Island: 9.2 mi, tides about 9 min later
- Point St. Albans: 13.6 mi, tides at about the same time
- Kell Bay, Affleck Canal, Kuiu Island: 17.1 mi, tides about 18 min later
- Port Protection, Prince of Wales Island.: 34.4 mi, tides about 4 min later
- Sumner Island: 37.2 mi, tides at about the same time
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Coronation Island this month: Nov 22, Nov 23, Nov 24, Nov 25, Nov 26, Nov 27. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.
🔻 Negative (minus) low tides at Coronation Island this month: Nov 7, Nov 8, Nov 9, Nov 10, Nov 11, Nov 12, Nov 22, Nov 23, Nov 24, Nov 25, Nov 26, Nov 27 …. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for Coronation Island, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌗 | 6:30–8:30 AM 6:55–8:55 PM | 11:04–1:04 AM 1:31–3:31 PM | 50 |
| Wed Nov 4 🌗 | 7:18–9:18 AM 7:43–9:43 PM | 12:35–2:35 AM 1:39–3:39 PM | 63 |
| Thu Nov 5 🌘 | 8:03–10:03 AM 8:28–10:28 PM | 2:03–4:03 AM 1:45–3:45 PM | 75 |
| Fri Nov 6 🌘 | 8:48–10:48 AM 9:13–11:13 PM | 3:28–5:28 AM 1:52–3:52 PM | 85 |
| Sat Nov 7 🌘 | 9:33–11:33 AM 9:58–11:58 PM | 4:53–6:53 AM 2:00–4:00 PM | 93 |
| Sun Nov 8 🌘 | 10:20–12:20 PM 10:45–12:45 AM | 6:18–8:18 AM 2:10–4:10 PM | 97 |
| Mon Nov 9 🌑 | 11:08–1:08 PM 11:33–1:33 AM | 7:41–9:41 AM 2:26–4:26 PM | 99 |
Predictions & observations: NOAA CO-OPS station 9450829. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
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