Nehenta Bay, Gravina Island Tide Chart
Alaska · NOAA Station 9450339 · 55.167°, -131.797°
Nehenta Bay, Gravina Island tide chart for any date
Checking a past trip or planning ahead? Pick any date — past or future — to see the high and low tides, the tidal range, and sunrise & sunset for Nehenta Bay, Gravina Island.
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This Week’s Tides for Nehenta Bay, Gravina Island
High and low tide times and heights (ft, MLLW) for the week ahead.
| High | 1:14 AM | 16.3 ft |
| Low | 7:22 AM | -1.9 ft |
| High | 1:40 PM | 16.2 ft |
| Low | 7:43 PM | -0.9 ft |
| High | 1:56 AM | 16.1 ft |
| Low | 7:57 AM | -1.3 ft |
| High | 2:13 PM | 16.4 ft |
| Low | 8:21 PM | -1.2 ft |
| High | 2:35 AM | 15.5 ft |
| Low | 8:31 AM | -0.3 ft |
| High | 2:44 PM | 16.3 ft |
| Low | 8:58 PM | -1.0 ft |
| High | 3:14 AM | 14.6 ft |
| Low | 9:03 AM | 0.9 ft |
| High | 3:15 PM | 15.7 ft |
| Low | 9:35 PM | -0.4 ft |
| High | 3:53 AM | 13.4 ft |
| Low | 9:36 AM | 2.4 ft |
| High | 3:46 PM | 14.9 ft |
| Low | 10:14 PM | 0.5 ft |
| High | 4:34 AM | 12.2 ft |
| Low | 10:09 AM | 3.8 ft |
| High | 4:18 PM | 13.9 ft |
| Low | 10:57 PM | 1.7 ft |
| High | 5:21 AM | 10.9 ft |
| Low | 10:46 AM | 5.2 ft |
| High | 4:57 PM | 12.9 ft |
| Low | 11:51 PM | 2.9 ft |
Nehenta Bay, Gravina Island Tide Table — Next 30 Days
Every high and low tide for the next month at Nehenta Bay, Gravina Island, with heights in feet (MLLW), the daily tidal range, and sunrise & sunset.
| Day | Sunrise | Sunset | Tides (time · ft, MLLW) | Range | |||
|---|---|---|---|---|---|---|---|
| Fri, Sep 11Today | 6:12 AM | 7:15 PM | High1:14 AM16.3 ft | Low7:22 AM-1.9 ft | High1:40 PM16.2 ft | Low7:43 PM-0.9 ft | 18.2 ft |
| Sat, Sep 12 | 6:14 AM | 7:12 PM | High1:56 AM16.1 ft | Low7:57 AM-1.3 ft | High2:13 PM16.4 ft | Low8:21 PM-1.2 ft | 17.7 ft |
| Sun, Sep 13 | 6:16 AM | 7:09 PM | High2:35 AM15.5 ft | Low8:31 AM-0.3 ft | High2:44 PM16.3 ft | Low8:58 PM-1.0 ft | 17.3 ft |
| Mon, Sep 14 | 6:17 AM | 7:07 PM | High3:14 AM14.6 ft | Low9:03 AM0.9 ft | High3:15 PM15.7 ft | Low9:35 PM-0.4 ft | 16.1 ft |
| Tue, Sep 15 | 6:19 AM | 7:04 PM | High3:53 AM13.4 ft | Low9:36 AM2.4 ft | High3:46 PM14.9 ft | Low10:14 PM0.5 ft | 14.4 ft |
| Wed, Sep 16 | 6:21 AM | 7:02 PM | High4:34 AM12.2 ft | Low10:09 AM3.8 ft | High4:18 PM13.9 ft | Low10:57 PM1.7 ft | 12.2 ft |
| Thu, Sep 17 | 6:23 AM | 6:59 PM | High5:21 AM10.9 ft | Low10:46 AM5.2 ft | High4:57 PM12.9 ft | Low11:51 PM2.9 ft | 10.0 ft |
| Fri, Sep 18 | 6:25 AM | 6:57 PM | High6:26 AM9.8 ft | Low11:37 AM6.4 ft | High5:50 PM11.8 ft | — | 5.4 ft |
| Sat, Sep 19 | 6:27 AM | 6:54 PM | Low1:09 AM3.7 ft | High8:04 AM9.4 ft | Low1:04 PM7.2 ft | High7:12 PM11.1 ft | 7.4 ft |
| Sun, Sep 20 | 6:29 AM | 6:51 PM | Low2:45 AM3.7 ft | High9:43 AM9.8 ft | Low2:57 PM7.0 ft | High8:51 PM11.2 ft | 7.5 ft |
| Mon, Sep 21 | 6:31 AM | 6:49 PM | Low3:59 AM3.0 ft | High10:40 AM10.7 ft | Low4:11 PM5.9 ft | High10:03 PM11.9 ft | 8.9 ft |
| Tue, Sep 22 | 6:32 AM | 6:46 PM | Low4:48 AM2.1 ft | High11:18 AM11.8 ft | Low5:00 PM4.6 ft | High10:55 PM12.9 ft | 10.8 ft |
| Wed, Sep 23 | 6:34 AM | 6:44 PM | Low5:25 AM1.2 ft | High11:49 AM12.9 ft | Low5:38 PM3.1 ft | High11:38 PM13.8 ft | 12.6 ft |
| Thu, Sep 24 | 6:36 AM | 6:41 PM | Low5:58 AM0.4 ft | High12:18 PM14.0 ft | Low6:14 PM1.7 ft | — | 13.6 ft |
| Fri, Sep 25 | 6:38 AM | 6:38 PM | High12:17 AM14.6 ft | Low6:28 AM-0.1 ft | High12:46 PM15.0 ft | Low6:48 PM0.3 ft | 15.1 ft |
| Sat, Sep 26 | 6:40 AM | 6:36 PM | High12:55 AM15.2 ft | Low6:58 AM-0.3 ft | High1:15 PM15.8 ft | Low7:22 PM-0.8 ft | 16.6 ft |
| Sun, Sep 27 | 6:42 AM | 6:33 PM | High1:33 AM15.4 ft | Low7:29 AM-0.1 ft | High1:44 PM16.4 ft | Low7:58 PM-1.6 ft | 18.0 ft |
| Mon, Sep 28 | 6:44 AM | 6:31 PM | High2:11 AM15.4 ft | Low8:02 AM0.4 ft | High2:16 PM16.8 ft | Low8:36 PM-1.9 ft | 18.7 ft |
| Tue, Sep 29 | 6:46 AM | 6:28 PM | High2:52 AM14.9 ft | Low8:36 AM1.2 ft | High2:49 PM16.7 ft | Low9:17 PM-1.7 ft | 18.4 ft |
| Wed, Sep 30 | 6:48 AM | 6:26 PM | High3:36 AM14.1 ft | Low9:13 AM2.3 ft | High3:27 PM16.3 ft | Low10:03 PM-1.1 ft | 17.4 ft |
| Thu, Oct 1 | 6:50 AM | 6:23 PM | High4:25 AM13.0 ft | Low9:55 AM3.6 ft | High4:10 PM15.4 ft | Low10:57 PM0.0 ft | 15.4 ft |
| Fri, Oct 2 | 6:51 AM | 6:20 PM | High5:25 AM11.9 ft | Low10:47 AM4.9 ft | High5:06 PM14.3 ft | — | 9.4 ft |
| Sat, Oct 3 | 6:53 AM | 6:18 PM | Low12:06 AM1.0 ft | High6:43 AM11.0 ft | Low12:00 PM5.9 ft | High6:22 PM13.2 ft | 12.2 ft |
| Sun, Oct 4 | 6:55 AM | 6:15 PM | Low1:30 AM1.6 ft | High8:17 AM11.0 ft | Low1:44 PM6.2 ft | High7:59 PM12.7 ft | 11.1 ft |
| Mon, Oct 5 | 6:57 AM | 6:13 PM | Low2:54 AM1.4 ft | High9:38 AM11.9 ft | Low3:22 PM5.2 ft | High9:28 PM13.1 ft | 11.7 ft |
| Tue, Oct 6 | 6:59 AM | 6:10 PM | Low4:02 AM0.8 ft | High10:35 AM13.1 ft | Low4:31 PM3.5 ft | High10:36 PM13.9 ft | 13.1 ft |
| Wed, Oct 7 | 7:01 AM | 6:08 PM | Low4:55 AM0.2 ft | High11:20 AM14.4 ft | Low5:23 PM1.8 ft | High11:30 PM14.6 ft | 14.4 ft |
| Thu, Oct 8 | 7:03 AM | 6:05 PM | Low5:38 AM-0.1 ft | High11:58 AM15.4 ft | Low6:06 PM0.3 ft | — | 15.5 ft |
| Fri, Oct 9 | 7:05 AM | 6:03 PM | High12:17 AM15.1 ft | Low6:17 AM-0.1 ft | High12:33 PM16.1 ft | Low6:46 PM-0.8 ft | 16.9 ft |
| Sat, Oct 10 | 7:07 AM | 6:00 PM | High1:00 AM15.2 ft | Low6:53 AM0.2 ft | High1:05 PM16.5 ft | Low7:22 PM-1.5 ft | 18.0 ft |
About Nehenta Bay, Gravina Island tides
Tide predictions for Nehenta Bay, Gravina Island come from NOAA station 9450339 (Alaska), computed from long-term harmonic analysis of observed water levels. Heights are shown in feet relative to MLLW (Mean Lower Low Water) — the same datum used on US nautical charts — so they line up directly with charted depths.
Nehenta Bay, Gravina Island typically sees a mixed semidiurnal tide, with two highs and two lows of differing heights each day. Use the curve above to time a harbor entrance, a beach walk, fishing a moving tide, or clearing a shallow bar — and remember that wind and pressure can push the real water level above or below prediction. The daily tidal range in the 30-day table shows how much water moves each day: bigger ranges around the new and full moon mean stronger currents.
The current water temperature near Nehenta Bay, Gravina Island is about 56°F, from the nearest reporting buoy (Ketchikan, AK buoy KECA2, 13 mi away). Water temperature shapes where fish hold and feed, and tells you what to wear in the water — check it alongside the tide before you head out.
Frequently asked
What time is high tide in Nehenta Bay, Gravina Island today?+
Today (Friday, September 11), high tide at Nehenta Bay, Gravina Island is at 1:14 AM (16.3 ft), 1:40 PM (16.2 ft). Heights are referenced to MLLW (Mean Lower Low Water).
What time is low tide in Nehenta Bay, Gravina Island today?+
Today, low tide at Nehenta Bay, Gravina Island is at 7:22 AM (-1.9 ft), 7:43 PM (-0.9 ft).
What tidal datum do these Nehenta Bay, Gravina Island tide heights use?+
All heights are given in feet relative to MLLW (Mean Lower Low Water), the standard NOAA chart datum for US tidal waters. A tide of 0.0 ft equals the chart datum; negative tides fall below it.
How accurate are these tide predictions?+
These are NOAA harmonic predictions — highly accurate for the astronomical tide. Real water levels can still differ with wind, barometric pressure, and storms, so always check current conditions before getting underway.
What is the water temperature at Nehenta Bay, Gravina Island?+
The latest sea-surface temperature near Nehenta Bay, Gravina Island is about 56°F, from the nearest reporting buoy (Ketchikan, AK buoy KECA2, 13 mi away). Water temperature drives fish behavior and tells you what to wear in the water, so it's worth checking alongside the tide.
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