TidePlanet
Official alerts:
  • Small Craft Advisory: winds or seas hazardous to small boats. From 5:00 pm today to 5:00 pm tomorrow. NWS Anchorage AK

Today in Unalaska there are high tides at 10:42 am (3.6 ft) and 6:35 pm (3.9 ft) and low tides at 2:08 am and 2:01 pm. Tide coefficient 113. Right now the tide is rising toward the high tide at 6:35 pm. The sun rises at 9:59 am and sets at 7:40 pm: 9 h 40 min of daylight. The moon is 90% illuminated (waning gibbous) and rises at 8:37 pm. Major solunar periods run from 3:57 am to 5:57 am and from 4:29 pm to 6:29 pm. The next spring tides arrive from October 26 to 28. The sea is slight, with 2.0 ft waves. There's a light breeze from the east (4 mph). Partly cloudy, 47 °F.

Fishing

Fishing in Unalaska today

Fishing forecast, 7 days →

Best time to fish

Solunar activity today: high
8
Good day · 8 out of 10 9:40–11:30 am Also 1:50–2:50 pm and 5:40–6:30 pm
  • High tide at 10:42 am, coefficient 112
  • Sunrise at 9:59 am
  • Falling pressure (−0.13 inHg in 24 h), light onshore wind (7 mph) and some swell (2.4 ft waves) to stir the water
  • Waning gibbous: a bit more activity than at the quarters
  • Highest tide coefficient today: 113 (big spring tides)
  • A minor period lines up with sunset

Your day at a glance

The best window, 9:40 am to 11:30 am, combines the 10:42 am high tide, sunrise, falling pressure, a light onshore breeze and some swell. Also good from 1:50 pm to 2:50 pm, with the 2:01 pm low tide, moonset, a light onshore breeze and some swell. Also worth a try from 5:40 pm to 6:30 pm, with the 6:35 pm high tide, a major period and some swell, though with rising pressure.

Species with the most records nearby: Pacific halibut, Chinook salmon and black rockfish. What you can catch

How it works · Next 7 days · Fishing rules

Beach

Beach day in Unalaska

Beach forecast, 7 days →

Is it a beach day?

0
Not a beach day · 0 out of 10 No good beach time today.
  • Mostly sunny
  • Onshore breeze (7 mph)
  • Calm for swimming: 2.4 ft waves
  • Low tide at 2:01 pm: more sand
  • Feels like 43 °F: chilly for the beach
  • Water at 45 °F (very cold)

Today, hour by hour

  • Swimming Calm · 2.4 ft

    2.4 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.

  • Water 45 °F

    Very cold: ease in and keep swims short.

  • Sun & sunscreen UV 1 · SPF 15

    Max UV 1 (low): SPF 15 sunscreen.

  • Wind 7 mph

    Onshore breeze (7 mph).

  • Tide & sand 2:08 am

    Low tide at 2:08 am and 2:01 pm: that's when there's the most sand. High tide at 10:42 am and 6:35 pm. Coefficient 113 (spring tides): little sand left at high tide.

We don't have data on jellyfish, sargassum or beach closures: ask the lifeguard or check with the local beach authority. How it works · The next 7 days

Beaches near Unalaska

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

  • Glass Beach 1.2 mi · W

    dirt · 0.2 mi long

    • Parking

Water quality: check the official beach advisories for Alaska (Alaska Beach Monitoring Program).

Named beaches within 6.2 mi, nearest first. Amenities from OpenStreetMap: some may be missing or out of date. View on OpenStreetMap · Add or fix on OpenStreetMap

Beaches and amenities: © OpenStreetMap contributors (ODbL).

Tides

Tides in Unalaska

Tides for 7 days →

Today's high and low tides

  • ▼ Low tide 2:08 am -0.9 ft
  • ▲ High tide 10:42 am 3.6 ft · coef. 112
  • ▼ Low tide 2:01 pm 3.3 ft

↑ Rising The tide is rising. 2 h 10 min to high tide at 6:35 pm.

Tide coefficient 112 for the 10:42 am high tide and 113 for the 6:35 pm high tide. Big spring tides. The water rises and falls 4.8 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?

2026 extremes: the highest tide of the year is on December 23 (5.1 ft) and the lowest, on May 18 (-1.8 ft).

Mixed, mainly diurnal: on many days there is only one high and one low tide.

Heights above mean lower low water (MLLW), the zero of US nautical charts. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation. MLLW

Tide coefficient and range in October

The biggest tides of the month come from October 28 to 29 (coefficient 115, 5.0 ft range). The smallest, on October 8 (coefficient 20, 2.4 ft).

Tide and solunar table · this week

Day Sun Tide 1Tide 2Tide 3Tide 4 Coef. Moon Major periods Activity
Today, Wed 28 9:59 am · 7:40 pm Low tide 2:08 am · -0.9 ft High tide 10:42 am · 3.6 ft Low tide 2:01 pm · 3.3 ft High tide 6:35 pm · 3.9 ft Coef. 113 90% Major periods 3:57 am · 4:29 pm High
Thu 29 10:01 am · 7:38 pm Low tide 3:05 am · -1.1 ft High tide 11:26 am · 3.8 ft Low tide 3:24 pm · 3.3 ft High tide 7:45 pm · 3.9 ft Coef. 115 82% Major periods 5:01 am · 5:34 pm High
Fri 30 10:03 am · 7:36 pm Low tide 4:04 am · -1.2 ft High tide 12:06 pm · 3.9 ft Low tide 4:40 pm · 3.2 ft High tide 8:56 pm · 3.9 ft Coef. 112 72% Major periods 6:06 am · 6:37 pm Medium
Sat 31 10:05 am · 7:33 pm Low tide 5:01 am · -1.1 ft High tide 12:44 pm · 4.0 ft Low tide 5:44 pm · 2.8 ft High tide 10:11 pm · 3.7 ft Coef. 103 62% Major periods 7:07 am · 7:36 pm Medium
Sun 1 9:07 am · 6:32 pm Low tide 4:54 am · -0.9 ft High tide 12:22 pm · 4.0 ft Low tide 5:44 pm · 2.4 ft High tide 10:28 pm · 3.5 ft Coef. 88 Last quarter Major periods 7:03 am · 7:30 pm Medium
Mon 2 9:09 am · 6:30 pm Low tide 5:45 am · -0.5 ft High tide 12:59 pm · 3.9 ft Low tide 6:45 pm · 1.9 ft High tide 11:47 pm · 3.2 ft Coef. 69 39% Major periods 7:55 am · 8:20 pm Medium
Tue 3 9:11 am · 6:28 pm Low tide 6:35 am · 0.0 ft High tide 1:34 pm · 3.8 ft Low tide 7:45 pm · 1.3 ft — Coef. 47 29% Major periods 8:43 am · 9:06 pm Medium

▲ high tide · ▼ low tide · heights above MLLW. Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.

Where this tide comes from

A · Official station

Tides from the Unalaska station (NOAA), 0.4 mi from Unalaska. Times and heights are its predictions.

Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)

How we calculate the tide

Sea and waves

The sea at Unalaska

7-day waves

Sea stateSea state: slight

Slight Douglas 3 · light breeze, Beaufort 2
Waves 2.0 ft · 5.6 s from the north-northwest (342°)
Swell 1.7 ft · 4.5 s from the north-northwest
Current 0.1 mph toward the S

The waves you may find

  • Most commonMost common1.0 ft
  • Significant2.0 ft
  • Highest expectedHighest4.1 ft

One wave in seven is higher than the significant height, and about 3 times a day one reaches 4.1 ft. Before heading out, expect waves of up to 4.1 ft.

Wind on the coast and offshore

On the coast 4 mph E · gusts 12
Offshore (8.8 mi N)Offshore 4 mph NE · gusts 8

Cross-shore wind. The coast faces north and the wind blows along the shore: drift and current run parallel to the beach.

Cross-shore Hourly wind →

Wave height, next 7 daysWaves, next 7 days

Waves build over the next few days. The biggest waves arrive on Saturday 31: 7.0 ft with a period of 6 s, from the north-northwest (moderate).

Water temperature

Water temperature →
Water now45.3 °F
Today 45.1–45.3 °F air: 41 / 50 °F
Satellite (yesterday) 45.0 °F measured 0.4 mi away

Water temperature changes how fish behave: in very cold or very warm water they feed less. The water is steady these days, with no sudden changes.

Water about normal for late October.

Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses

Water temperature →

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 4:26 pm (local time).

Nearest marine station

Unalaska, AK Station UNLA2 · 0.4 mi NNW of here Measured at 3:30 pm, 56 min ago
Wind 5 mph E · gusts 8
Water 45.0 °F
Pressure 30.06 inHg

This is a real measurement of the sea, not a forecast. Data from station UNLA2, NOAA National Data Buoy Center (public domain).

Diving

Diving in Unalaska today

Diving and snorkeling, 7 days →

Diving and snorkeling today

Likely visibility: fair
9
Great day · 9 out of 10 11:50 am–2:50 pm Also 5:20–7:10 pm
  • Slack water around high tide (10:42 am): little current from 10:10 am to 12:00 pm
  • Slack water around low tide (2:01 pm): little current from 12:40 pm to 2:50 pm
  • 1.5 ft swell at 5 s from the northwest: barely any surge
  • Light onshore wind (5 mph)
  • 0.1 mph current toward the south, weak (model)
  • Sun high: more light underwater
Swell 1.5 ft 5 s · from the NW
Likely visibility Fair Snorkeling: fair
Water and suit 45.1 °F Drysuit
Current 0.1 mph toward the S
  • Slack water today: low tide 2:08 am (1:53–2:23 am), high tide 10:42 am (10:10 am–12:00 pm), low tide 2:01 pm (12:40–2:50 pm) and high tide 6:35 pm (6:00–7:00 pm)
  • Likely visibility: fair. Rain (1.07 in) over the last few days has stirred up the water. Based on the last 24 hours of data.
  • Water at 45.1 °F: a drysuit, with hood, gloves and booties.
  • Snorkeling: doable, with some waves or wind.
  • Night dive: dark from 8:16 pm. Waning gibbous (90%), rising at 8:37 pm: a bright night.

Your diving day at a glance

The best window, 11:50 am to 2:50 pm, combines slack water at high tide, slack water at low tide, little swell, light wind, weak current and the sun high. Also good from 5:20 pm to 7:10 pm, with slack water at high tide, little swell, light wind and weak current.

Slack water comes from the tide: in inlets, channels and between islands the water can keep running for an hour or two after. Ask the local dive shop.

Never dive alone and check with the local dive shop: this rating is a guide, not a substitute for a professional.

How it works · Next 7 days

Dive sites, wrecks and dive shops nearby

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Within 12 mi. Some may be missing or closed; marine reserves usually need a permit. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap

Wreck and reef positions are approximate and not for navigation; a wreck’s depth runs from the top of the hull to the seabed.

Sites: © OpenStreetMap contributors (ODbL). US wrecks: NOAA electronic navigational charts (ENC), a U.S. Government work; not for navigation.

Weather

Weather in Unalaska

14-day weather

Now in Unalaska

Now 47 °F Partly cloudy · feels like 42 °F · 41 / 50 °F
Low / high
41 / 50 °F
Rain
0.06 in · 100%
Clouds
74%
Humidity
63%
Dew pointDew point
35 °F
Visibility
15 mi
UV indexUV
1 · low
Air qualityAir
Good · 35
Saharan dust
No

Pressure and fishing

  • ↗ RisingRising Anglers say fish bite less for a while
  • → SteadySteady · now Anglers expect normal activity
  • ↘ FallingFalling Anglers say fish feed more before the change

Steady now (−0.02 inHg in 3 hours). Over the next 48 hours: −1.02 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Today, hour by hourHour by hour

Bars: mean wind. Dashed line: gusts. Arrows point where the wind blows to.

Time 12:00 am3:00 am6:00 am9:00 am12:00 pm3:00 pm6:00 pm9:00 pm
Sky Light drizzleLight drizzleOvercastMainly clearClear skyPartly cloudyMainly clearPartly cloudy
Temperature 50°48°44°42°44°47°45°42°
Wind (mph) 6 SSW3 WSW7 NW9 NNW6 NNW3 NE5 SSE8 SSE
Gusts 2016212517111420
Waves 2.0 ft1.7 ft2.1 ft2.4 ft2.4 ft2.1 ft1.9 ft1.8 ft
Rain 0.02 in0.01 in0.00 in0.00 in0.00 in0.00 in0.00 in0.00 in
  • 6:00 pm 45° 5 SSE 1.9 ft
  • 9:00 pm 42° 8 SSE 1.8 ft
  • 12:00 am 42° 13 SSE 2.0 ft
  • 3:00 am 45° 16 SSE 2.6 ft
  • 6:00 am 46° 17 S 2.8 ft
  • 9:00 am 48° 10 SSW 2.2 ft
  • 12:00 pm 49° 13 SW 1.7 ft
  • 3:00 pm 50° 17 SSW 1.6 ft

Next 14 daysComing days

Day Sky Low / high Max wind Max wave High tides
Today · 28 Light drizzle 41 / 50 °F 11 mph WNW 2.5 ft 10:42 am · 6:35 pm
Thu 29 Heavy drizzle 42 / 50 °F 17 mph SSW 2.8 ft 11:26 am · 7:45 pm
Fri 30 Drizzle 40 / 43 °F 18 mph WSW 5.9 ft 12:06 pm · 8:56 pm
Sat 31 Drizzle 33 / 40 °F 18 mph NW 7.0 ft 12:44 pm · 10:11 pm
Sun 1 Rain 33 / 47 °F 24 mph SSE 5.1 ft 12:22 pm · 10:28 pm
Mon 2 Drizzle 39 / 46 °F 12 mph WSW 1.5 ft 12:59 pm · 11:47 pm
Tue 3 Light drizzle 34 / 42 °F 21 mph WSW 3.7 ft 1:34 pm
Wed 4 Light rain 35 / 46 °F 19 mph SSE 3.2 ft 1:14 am · 2:05 pm
Thu 5 Heavy drizzle 37 / 41 °F 17 mph W 4.3 ft 2:44 am · 2:33 pm
Fri 6 Light drizzle 37 / 42 °F 9 mph WNW 9.6 ft 4:18 am · 2:55 pm
Sat 7 Light drizzle 35 / 44 °F 10 mph NW 9.3 ft 6:09 am · 3:09 pm
Sun 8 Light drizzle 38 / 43 °F 17 mph NNW 7.2 ft 7:52 am · 3:11 pm
Mon 9 Light drizzle 37 / 41 °F 19 mph NNW 11 ft 9:13 am
Tue 10 Light drizzle 34 / 39 °F 13 mph NW 9.8 ft 10:07 am
  • Thu 29 Heavy drizzle 42° / 50° 2.8 ft
  • Fri 30 Drizzle 40° / 43° 5.9 ft
  • Sat 31 Drizzle 33° / 40° 7.0 ft
  • Sun 1 Rain 33° / 47° 5.1 ft
  • Mon 2 Drizzle 39° / 46° 1.5 ft
  • Tue 3 Light drizzle 34° / 42° 3.7 ft
  • Wed 4 Light rain 35° / 46° 3.2 ft
See all 14 days →

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 4:26 pm (local time).

Sun

The sun in Unalaska

Sunrise and sunset →

Sunrise and sunset

Rises 9:59 am in the ESE (112°)ESE
Sets 7:40 pm in the WSW (248°)WSW
  • First light 8:41 am
  • Full dark 8:58 pm
  • Civil dawn 9:22 am
  • Civil dusk 8:16 pm
  • Solar noon 2:50 pm (23° high)
  • Daylight 9 h 40 min (−4 min)
  • Evening golden hour 6:47 pm
  • Full dark 8:58 pm

Golden hour and the day-night map

Morning golden hour9:59–10:52 am
Evening golden hour6:47–7:40 pm
Unalaska

Today the sun is 92,348,579 mi away and looks 32′ 11″ across.

Moon and solunar

The moon in Unalaska

The moon for 7 days →

Moon phase and position

Waning gibbous · 90% 90% illuminated · 18.2 days old New moon on Sun, Nov 8 · 10:03 pm
Rises 8:37 pm in the NE (39°)NE
Sets 3:28 pm tomorrow · in the NW (322°) · set at 2:18 pm
Transit 4:57 am overhead
Visible 18 h 52 min from 8:37 pm to 3:28 pm

Today the moon is 226,428 mi away and looks 32′ 47″ across.

Solunar periods

Today's activity: high
  • 3:57–5:57 am Major · the moon passes overhead · high activity
  • 4:29–6:29 pm Major · the moon passes underfoot · high activity
  • 1:48–2:48 pm Minor · moonset · medium activity
  • 8:07–9:07 pm Minor · moonrise · medium activity

According to solunar theory, fish feed more when the moon passes overhead or underfoot (major periods, about 2 h) and when it rises or sets (minor periods, 1 h). It works best around new and full moon.

Upcoming moon phases

2026 moon calendar →
  • Last quarter Sun, Nov 1 · 11:29 amNov 1 in 4 days
  • New moon Sun, Nov 8 · 10:03 pmNov 8 in 11 days
  • First quarter Tue, Nov 17 · 2:48 amNov 17 in 20 days
  • Full moon Tue, Nov 24 · 5:54 amNov 24 in 27 days

Perigee on October 28, 226,426 mi away, coinciding with the spring tides from October 26 to 28: they will be stronger than usual.

Place

Where to fish in Unalaska

All places in Alaska →

Piers, ramps and tackle shops nearby

Map: OpenFreeMap · © OpenMapTiles · © OpenStreetMap contributors

Within 9.3 mi. A spot may be missing or closed. Open the map on OpenStreetMap · Missing one? Add it to OpenStreetMap

Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.

Tides near UnalaskaTides nearby

All places in Alaska, A to Z (305) →

Unalaska at a glance

  • Town or city of about 4,491 people. Coordinates: 53.874° N, 166.534° W.
  • It is 795 mi southwest of Anchorage, the main place in Alaska. The sun rises 42 min later and sets 91 min later than in Anchorage.
  • The nearest tide station, Unalaska, is 0.4 mi to the northwest.
  • Its coast faces north.
  • Beaches and harbors nearby: Unalaska Wharf (historical) (0.4 mi), Agnes Beach (0.4 mi), North American Commercial Company Wharf (historical) (1.2 mi), Arkansas Beach (2.2 mi).

Questions about UnalaskaQuestions

What time is high tide today in Unalaska?

Today in Unalaska there are high tides at 10:42 am (3.6 ft) and 6:35 pm (3.9 ft) and low tides at 2:08 am and 2:01 pm. Tide coefficient 113.

What time is sunset today in Unalaska?

At 7:40 pm. There is light until the end of civil twilight, at 8:16 pm.

What time is sunrise tomorrow in Unalaska?

At 10:01 am. First light comes at 8:43 am.

What phase is the moon today?

Waning gibbous, 90% illuminated. New moon on Sun, Nov 8 · 10:03 pm.

When are the next spring tides?

From October 26 to 28, together with the lunar perigee: they will be stronger than usual.

What are today's solunar periods?

Major 3:57–5:57 am, Minor 1:48–2:48 pm, Major 4:29–6:29 pm, Minor 8:07–9:07 pm. Today's activity is high.

What's the weather like today in Unalaska?

Light drizzle, from 41 °F to 50 °F, with a light breeze from the east (4 mph) and a 100% chance of rain.

How is the sea today in Unalaska?

Slight (Douglas 3): 2.0 ft waves with a period of 5.6 s from the north-northwest. The water is 45.3 °F.

When is the best time to visit Unalaska?

The best time to visit Unalaska is from July to August: highs of 57 °F to 59 °F, about 13 rainy days a month and 1 hours of sunshine a day.

Can I use this data for navigation?

No. These are predictions for fishing and leisure; for navigation, use the official publications.

Where this data comes from

Tide: NOAA station Unalaska (public domain), via Slackwater database. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).

Spotted a mistake? Tell us · How we calculate the tide

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