Chernofski Harbor tide chart
Alaska · NOAA station 9462501 · times in local time (AKDT)
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Tides today, Sunday, October 11
- Low 12:50 AM 0.1 ft
- High 8:44 AM 3.0 ft
- Low 1:05 PM 2.6 ft
- High 6:01 PM 2.9 ft
Were today's predicted times right where you were?
Sunrise 9:30 AM · Sunset 8:24 PM · New moon (0%)
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Weather and conditions at Chernofski Harbor
Loading the National Weather Service forecast… Open it on weather.gov.
Marine forecast: Unalga Pass to Nikolski Bering Side out to 15 NM
Loading the latest National Weather Service forecast… Open it on weather.gov.
Marine radio: weather channels and VHF
NOAA Weather Radio
- 162.550 MHz WX1 WXK89, Unalaska, AK (53 mi)
To get alerts on a weather alert radio, program county code 002016 (Aleutians West).
VHF marine channels
- Ch 16 Distress, safety and calling
- Ch 9 Boater-to-boater calling
- Ch 22A Coast Guard safety broadcasts
- Ch 13 Bridge-to-bridge (big ships, drawbridges)
- Ch 68, 69, 71, 72, 78A Recreational chat
Weather radio broadcasts are continuous; VHF channels are the US standard. Local harbors and bridges may use others, so check your chart.
Live readings from NOAA and the National Weather Service, loaded when you open this page.
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Tide times this week
| Day | High and low tides | Sunrise / sunset | Moon |
|---|---|---|---|
| Sun Oct 11 | L 12:50 AM 0.1 ftH 8:44 AM 3.0 ftL 1:05 PM 2.6 ftH 6:01 PM 2.9 ft | 9:30 AM / 8:24 PM | New moon (0%) |
| Mon Oct 12 | L 1:39 AM -0.1 ftH 10:11 AM 3.3 ftL 2:59 PM 3.0 ftH 6:24 PM 2.9 ft | 9:32 AM / 8:22 PM | New moon (2%) |
| Tue Oct 13 | L 2:27 AM -0.2 ftH 11:16 AM 3.6 ftL 4:58 PM 3.1 ftH 6:52 PM 2.9 ft | 9:34 AM / 8:20 PM | Waxing crescent (7%) |
| Wed Oct 14 | L 3:16 AM -0.2 ftH 12:04 PM 3.8 ftL 5:59 PM 3.1 ftH 7:31 PM 2.9 ft | 9:36 AM / 8:17 PM | Waxing crescent (13%) |
| Thu Oct 15 | L 4:04 AM -0.2 ftH 12:46 PM 3.9 ftL 6:36 PM 3.1 ftH 8:22 PM 2.9 ft | 9:38 AM / 8:15 PM | Waxing crescent (21%) |
| Fri Oct 16 | L 4:50 AM -0.1 ftH 1:25 PM 3.9 ftL 7:04 PM 3.1 ftH 9:23 PM 2.9 ft | 9:40 AM / 8:13 PM | Waxing crescent (30%) |
| Sat Oct 17 | L 5:33 AM -0.1 ftH 2:02 PM 3.8 ftL 7:29 PM 3.0 ftH 10:24 PM 2.9 ft | 9:41 AM / 8:10 PM | First quarter (40%) |
Tidal currents near Chernofski Harbor
From NOAA's current predictions for Paso Point at 36 ft depth, 6.9 miles away. Slack is when the current turns and the water is calmest; flood runs in with the rising tide and ebb runs out with the falling tide. Times are the peak of each run, in knots. The flood runs toward the NE (48°) and the ebb toward the SW (218°). The strongest current this week is 2.2 knots.
| Day | Slack water and peak currents |
|---|---|
| Sun Oct 11 | Slack 2:11 AMFlood 6:24 AM 2.2 knSlack 10:07 AMEbb 11:58 AM 0.6 knSlack 1:48 PMFlood 6:05 PM 1.6 knSlack 8:49 PMEbb 11:45 PM 2.0 kn |
| Mon Oct 12 | Slack 2:50 AMFlood 7:13 AM 2.1 knSlack 11:01 AMEbb 12:33 PM 0.4 knSlack 2:07 PMFlood 6:34 PM 1.6 knSlack 9:23 PM |
| Tue Oct 13 | Ebb 12:16 AM 2.1 knSlack 3:28 AMFlood 8:01 AM 1.9 knSlack 11:53 AMEbb 1:04 PM 0.2 knSlack 2:19 PMFlood 7:02 PM 1.5 knSlack 10:01 PM |
| Wed Oct 14 | Ebb 12:50 AM 2.1 knSlack 4:07 AMFlood 8:48 AM 1.7 knSlack 1:01 PMSlack 2:09 PMFlood 7:34 PM 1.5 knSlack 10:41 PM |
| Thu Oct 15 | Ebb 1:26 AM 1.9 knSlack 4:48 AMFlood 9:34 AM 1.4 knFlood 2:06 PM 0.2 knFlood 8:11 PM 1.4 knSlack 11:22 PM |
| Fri Oct 16 | Ebb 2:05 AM 1.7 knSlack 5:33 AMFlood 10:22 AM 1.2 knFlood 2:51 PM 0.4 knFlood 8:51 PM 1.3 kn |
| Sat Oct 17 | Slack 12:05 AMEbb 2:49 AM 1.5 knSlack 6:24 AMFlood 11:29 AM 1.1 knFlood 5:21 PM 0.5 knFlood 9:30 PM 1.1 kn |
Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.
Best fishing times at Chernofski Harbor
Solunar periods for this spot: major periods (about two hours) are centred on the moon passing overhead or underfoot, and minor periods (about an hour) on moonrise and moonset. Days near the new and full moon rate higher, and so does a period that lines up with sunrise, sunset or a turn of the tide.
| Day | Rating | Major periods | Minor periods |
|---|---|---|---|
| Sun Oct 11 | Very good | 2:34 AM–4:34 AM, 2:56 PM–4:56 PM | 10:55 AM–11:55 AM, 7:46 PM–8:46 PM |
| Mon Oct 12 | Very good | 3:20 AM–5:20 AM, 3:43 PM–5:43 PM | 12:15 PM–1:15 PM, 8:03 PM–9:03 PM |
| Tue Oct 13 | Excellent | 4:07 AM–6:07 AM, 4:32 PM–6:32 PM | 1:31 PM–2:31 PM, 8:26 PM–9:26 PM |
| Wed Oct 14 | Very good | 4:57 AM–6:57 AM, 5:22 PM–7:22 PM | 2:42 PM–3:42 PM, 8:59 PM–9:59 PM |
| Thu Oct 15 | Very good | 5:47 AM–7:47 AM, 6:13 PM–8:13 PM | 3:40 PM–4:40 PM, 9:46 PM–10:46 PM |
| Fri Oct 16 | Good | 6:38 AM–8:38 AM, 7:03 PM–9:03 PM | 4:24 PM–5:24 PM, 10:47 PM–11:47 PM |
| Sat Oct 17 | Fair | 7:28 AM–9:28 AM, 7:53 PM–9:53 PM | 4:55 PM–5:55 PM |
Solunar times are a rule of thumb many anglers use, not a guarantee. Moving water around a tide change usually matters as much.
Best daylight low tides in the next two weeks
The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.
- 2.6 ft at 1:05 PM on Sunday, October 11
- 2.9 ft at 7:52 PM on Sunday, October 18
- 3.0 ft at 2:59 PM on Monday, October 12
- 3.0 ft at 7:29 PM on Saturday, October 17
- 3.1 ft at 4:58 PM on Tuesday, October 13
- 3.1 ft at 7:04 PM on Friday, October 16
Tide table: October 11 to November 10, 2026
Full 2026 tide table Full 2027 tide table
| Day | High and low tides | Sunrise / sunset |
|---|---|---|
| Sun Oct 11 | L 12:50 AM 0.1 ftH 8:44 AM 3.0 ftL 1:05 PM 2.6 ftH 6:01 PM 2.9 ft | 9:30 AM / 8:24 PM |
| Mon Oct 12 | L 1:39 AM -0.1 ftH 10:11 AM 3.3 ftL 2:59 PM 3.0 ftH 6:24 PM 2.9 ft | 9:32 AM / 8:22 PM |
| Tue Oct 13 | L 2:27 AM -0.2 ftH 11:16 AM 3.6 ftL 4:58 PM 3.1 ftH 6:52 PM 2.9 ft | 9:34 AM / 8:20 PM |
| Wed Oct 14 | L 3:16 AM -0.2 ftH 12:04 PM 3.8 ftL 5:59 PM 3.1 ftH 7:31 PM 2.9 ft | 9:36 AM / 8:17 PM |
| Thu Oct 15 | L 4:04 AM -0.2 ftH 12:46 PM 3.9 ftL 6:36 PM 3.1 ftH 8:22 PM 2.9 ft | 9:38 AM / 8:15 PM |
| Fri Oct 16 | L 4:50 AM -0.1 ftH 1:25 PM 3.9 ftL 7:04 PM 3.1 ftH 9:23 PM 2.9 ft | 9:40 AM / 8:13 PM |
| Sat Oct 17 | L 5:33 AM -0.1 ftH 2:02 PM 3.8 ftL 7:29 PM 3.0 ftH 10:24 PM 2.9 ft | 9:41 AM / 8:10 PM |
| Sun Oct 18 | L 6:14 AM 0.0 ftH 2:34 PM 3.6 ftL 7:52 PM 2.9 ftH 11:18 PM 2.9 ft | 9:43 AM / 8:08 PM |
| Mon Oct 19 | L 6:53 AM 0.2 ftH 3:01 PM 3.4 ftL 8:15 PM 2.6 ft | 9:45 AM / 8:06 PM |
| Tue Oct 20 | H 12:10 AM 2.7 ftL 7:29 AM 0.4 ftH 3:21 PM 3.2 ftL 8:40 PM 2.3 ft | 9:47 AM / 8:04 PM |
| Wed Oct 21 | H 1:10 AM 2.6 ftL 8:01 AM 0.7 ftH 3:33 PM 3.1 ftL 9:09 PM 1.9 ft | 9:49 AM / 8:02 PM |
| Thu Oct 22 | H 2:21 AM 2.4 ftL 8:31 AM 1.1 ftH 3:35 PM 3.0 ftL 9:41 PM 1.4 ft | 9:51 AM / 7:59 PM |
| Fri Oct 23 | H 3:40 AM 2.4 ftL 8:57 AM 1.5 ftH 3:36 PM 3.0 ftL 10:18 PM 0.8 ft | 9:53 AM / 7:57 PM |
| Sat Oct 24 | H 5:13 AM 2.4 ftL 9:22 AM 2.0 ftH 3:44 PM 3.2 ftL 11:01 PM 0.2 ft | 9:55 AM / 7:55 PM |
| Sun Oct 25 | H 7:00 AM 2.6 ftL 9:50 AM 2.6 ftH 4:02 PM 3.4 ftL 11:49 PM -0.3 ft | 9:56 AM / 7:53 PM |
| Mon Oct 26 | H 8:29 AM 3.0 ftL 10:33 AM 3.1 ftH 4:31 PM 3.6 ft | 9:58 AM / 7:51 PM |
| Tue Oct 27 | L 12:42 AM -0.8 ftH 9:44 AM 3.4 ftL 12:04 PM 3.5 ftH 5:16 PM 3.8 ft | 10:00 AM / 7:49 PM |
| Wed Oct 28 | L 1:37 AM -1.1 ftH 10:39 AM 3.7 ftL 1:39 PM 3.8 ftH 6:21 PM 3.9 ft | 10:02 AM / 7:47 PM |
| Thu Oct 29 | L 2:34 AM -1.3 ftH 11:21 AM 3.9 ftL 3:06 PM 3.8 ftH 7:33 PM 4.0 ft | 10:04 AM / 7:45 PM |
| Fri Oct 30 | L 3:32 AM -1.4 ftH 12:00 PM 4.0 ftL 4:22 PM 3.6 ftH 8:45 PM 3.9 ft | 10:06 AM / 7:43 PM |
| Sat Oct 31 | L 4:29 AM -1.3 ftH 12:38 PM 4.1 ftL 5:24 PM 3.2 ftH 10:01 PM 3.8 ft | 10:08 AM / 7:41 PM |
| Sun Nov 1 | L 4:23 AM -1.1 ftH 12:15 PM 4.1 ftL 5:23 PM 2.7 ftH 10:18 PM 3.5 ft | 9:10 AM / 6:39 PM |
| Mon Nov 2 | L 5:14 AM -0.7 ftH 12:52 PM 4.0 ftL 6:23 PM 2.1 ftH 11:36 PM 3.2 ft | 9:12 AM / 6:37 PM |
| Tue Nov 3 | L 6:03 AM -0.1 ftH 1:26 PM 4.0 ftL 7:23 PM 1.5 ft | 9:14 AM / 6:35 PM |
| Wed Nov 4 | H 1:03 AM 3.0 ftL 6:51 AM 0.6 ftH 1:57 PM 3.9 ftL 8:19 PM 0.9 ft | 9:16 AM / 6:33 PM |
| Thu Nov 5 | H 2:32 AM 2.8 ftL 7:38 AM 1.4 ftH 2:23 PM 3.8 ftL 9:10 PM 0.4 ft | 9:18 AM / 6:31 PM |
| Fri Nov 6 | H 4:04 AM 2.8 ftL 8:24 AM 2.1 ftH 2:45 PM 3.6 ftL 9:59 PM 0.0 ft | 9:19 AM / 6:29 PM |
| Sat Nov 7 | H 5:51 AM 3.0 ftL 9:14 AM 2.8 ftH 2:58 PM 3.5 ftL 10:46 PM -0.2 ft | 9:21 AM / 6:28 PM |
| Sun Nov 8 | H 7:33 AM 3.3 ftL 10:27 AM 3.4 ftH 3:01 PM 3.5 ftL 11:29 PM -0.3 ft | 9:23 AM / 6:26 PM |
| Mon Nov 9 | H 8:57 AM 3.7 ft | 9:25 AM / 6:24 PM |
| Tue Nov 10 | L 12:11 AM -0.3 ftH 9:53 AM 4.0 ft | 9:27 AM / 6:23 PM |
Heights are in feet above mean lower low water (MLLW), the zero line on most US nautical charts. A minus height means the water drops below that line.
About the tides at Chernofski Harbor
Chernofski Harbor gets two high tides and two low tides most days, but one high is clearly higher than the other (and one low clearly lower), which is called a mixed tide. Over the next month the water typically rises or falls about 2.1 ft between a high and the next low.
The biggest swings in this window come around Friday, October 30, when the day's range reaches 5.4 ft, and again around Tuesday, November 10 (4.3 ft). Here the biggest ranges depend on the moon's phase and on how far north or south of the equator it is, so they don't always line up with the new and full moon. The calmest day is Thursday, October 22, with only 1.9 ft between the day's highest and lowest water.
The lowest tide of the month is -1.4 ft at 3:32 AM on Friday, October 30. There are 18 minus tides (lows below the chart's zero line) in this window: the best times for tide pools, clamming and walking the flats.
The highest predicted tide is 4.1 ft at 12:38 PM on Saturday, October 31. Onshore wind or a storm can push the real water level above that.
This is a subordinate station: NOAA calculates its times and heights by adjusting a nearby reference station, so expect them to be a few minutes or a few tenths of a foot off on any given day.
Station details
- NOAA station ID: 9462501
- Type: subordinate (adjusted from a reference station)
- Location: 53.3950, -167.5330
Reference station: Unalaska.
Nearby tide stations
- Otter Point 13 mi
- Kuliliak Bay 22 mi
- Skan Bay 25 mi
- Raven Bay 28 mi
- Usof Bay 32 mi
- Inanudak Bay 34 mi