Koyuk tides today
- Tide now 0.1 ft ↑ rising · high 4:20 am (4.3 ft)
- Best time tomorrow 5:10–7:10 pm good day · 8/10
- Beach day Not today Not a beach day · 0/10
- Waves · water 2.1 ft · 38 °F slight · 3.1 s from the south-southeast
- Wind · air 18 mph · 39 °F from the SSE, gusts 36 · heavy drizzle
- Sun 10:21 am–6:35 pm 8 h 14 min of daylight
- Moon 90% waning gibbous
- Diving tomorrow 12:20–1:50 pm great day · 10/10
- Small Craft Advisory: winds or seas hazardous to small boats. Until 5:00 pm today. NWS Fairbanks AK
Today in Koyuk there is high tide at 3:44 am (3.8 ft) and low tide at 12:20 pm. Tide coefficient 74. Right now the tide is rising toward the high tide at 4:20 am. The sun rises at 10:21 am and sets at 6:35 pm: 8 h 14 min of daylight. The moon is 90% illuminated (waning gibbous). Major solunar periods run from 3:34 am to 5:34 am and from 4:06 pm to 6:06 pm. The next spring tides arrive from October 26 to 28. The sea is slight, with 2.1 ft waves. There's a fresh breeze from the south-southeast (18 mph). Heavy drizzle, 39 °F.
Fishing in Koyuk today
Best time to fish
Solunar activity today: high- High tide at 3:44 am, coefficient 74
- Major period 3:34–5:34 am
- Falling pressure (−0.17 inHg in 24 h), light onshore wind (12 mph) and calm sea (1.4 ft waves)
- Waning gibbous: a bit more activity than at the quarters
- Highest tide coefficient today: 74 (average tides)
- A major period lines up with sunset
Your day at a glance
The best window, 3:30 am to 4:40 am, combines the 3:44 am high tide, a major period, falling pressure and a light onshore breeze. Also worth a try from 11:20 am to 1:20 pm, with the 12:20 pm low tide, sunrise and some swell, though with moderate wind.
Beach day in Koyuk
Is it a beach day?
- Calm for swimming: 2.3 ft waves
- Low tide at 12:20 pm: more sand
- Cloudy (100% cloud cover)
- Feels like 29 °F: chilly for the beach
- Rain (0.26 in)
- Fresh onshore wind (19 mph): blowing sand
Today, hour by hour
- Swimming Calm · 2.3 ft
2.3 ft waves: calm for swimming. Low rip current risk. Always follow the lifeguard's flags.
- Water 38 °F
Very cold: ease in and keep swims short.
- Sun & sunscreen UV 0 · SPF 15
Max UV 0 (low): SPF 15 sunscreen.
- Wind 19 mph
Fresh onshore wind (19 mph): blowing sand.
- Tide & sand 12:20 pm
Low tide at 12:20 pm: that's when there's the most sand. High tide at 3:44 am.
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 Koyuk
We don't know of any named beaches within 6.2 mi of Koyuk.
Missing one? Beaches come from OpenStreetMap: you can add it there. Add or fix on OpenStreetMap
Beaches and amenities: © OpenStreetMap contributors (ODbL).
Webcams near Koyuk
Webcams provided by windy.com — add a webcam
Tides in Koyuk
Today's high and low tides
- ▲ High tide 3:44 am 3.8 ft · coef. 74
- ▼ Low tide 12:20 pm -1.0 ft
↑ Rising The tide is rising. 12 h 33 min to high tide at 4:20 am.
Tide coefficient 74 for the 3:44 am high tide. Average coefficient. 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 June 17 (5.7 ft) and the lowest, on January 5 (-2.5 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 on October 31 (coefficient 112, 6.9 ft range). The smallest, on October 25 (coefficient 23, 1.4 ft).
Tide and solunar table · this week
| Day | Sun | Tide 1 | Tide 2 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|
| Today, Wed 28 | 10:21 am · 6:35 pm | High tide 3:44 am · 3.8 ft | Low tide 12:20 pm · -1.0 ft | Coef. 74 | 90% | Major periods 3:34 am · 4:06 pm | High |
| Thu 29 | 10:24 am · 6:32 pm | High tide 4:20 am · 4.3 ft | Low tide 1:00 pm · -1.5 ft | Coef. 92 | 82% | Major periods 4:39 am · 5:11 pm | High |
| Fri 30 | 10:27 am · 6:28 pm | High tide 5:00 am · 4.7 ft | Low tide 1:43 pm · -1.8 ft | Coef. 105 | 72% | Major periods 5:43 am · 6:14 pm | Medium |
| Sat 31 | 10:31 am · 6:25 pm | High tide 5:44 am · 4.9 ft | Low tide 2:28 pm · -2.0 ft | Coef. 112 | 62% | Major periods 6:44 am · 7:13 pm | Medium |
| Sun 1 | 9:34 am · 5:21 pm | High tide 5:29 am · 4.9 ft | Low tide 2:15 pm · -1.9 ft | Coef. 112 | Last quarter | Major periods 6:41 am · 7:08 pm | Medium |
| Mon 2 | 9:37 am · 5:18 pm | High tide 6:15 am · 4.7 ft | Low tide 3:04 pm · -1.7 ft | Coef. 106 | 39% | Major periods 7:33 am · 7:57 pm | Medium |
| Tue 3 | 9:41 am · 5:15 pm | High tide 7:03 am · 4.2 ft | Low tide 3:51 pm · -1.3 ft | Coef. 93 | 29% | Major periods 8:21 am · 8:44 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
Tides from the Koyuk station (NOAA), 0.2 mi from Koyuk. Times and heights are its predictions.
Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database)
The sea at Koyuk
Sea stateSea state: slight
The waves you may find
- Most commonMost common1.1 ft
- Significant2.1 ft
- Highest expectedHighest4.6 ft
One wave in seven is higher than the significant height, and about 3 times a day one reaches 4.6 ft. Before heading out, expect waves of up to 4.6 ft.
Wind on the coast and offshore
Onshore wind. The coast faces south and the wind blows straight in from the sea: more surf and backwash at the shore, and bait and boats drift toward land.
Wave height, next 7 daysWaves, next 7 days
Waves stay much the same all week. The biggest waves arrive on Wednesday 28: 2.6 ft with a period of 3 s, from the south-southwest (slight).
Water temperature
Water temperature →Water temperature changes how fish behave: in very cold or very warm water they feed less. The water cools over the next few days: about 37.1 °F by Tuesday 3.
Water warmer than normal for late October (+3.1 °F).
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 3:46 pm (local time).
Diving in Koyuk today
Diving and snorkeling today
Likely visibility: good- Slack water around low tide (12:20 pm): little current from 12:00 pm to 12:40 pm
- 0.1 ft swell at 4 s from the south-southwest: barely any surge
- Moderate onshore wind (13 mph)
- 0.5 mph current toward the north-northeast, weak (model)
- Sun high: more light underwater
- Slack water today: high tide 3:44 am (3:29–4:00 am) and low tide 12:20 pm (12:00–12:40 pm)
- Likely visibility: good. The sea has been calm and there's been little rain. Based on the last 24 hours of data.
- Water at 38.5 °F: a drysuit, with hood, gloves and booties.
- Snorkeling: doable, with some waves or wind.
- Night dive: dark from 7:29 pm. Waning gibbous (90%): a bright night.
Your diving day at a glance
The best window, 11:30 am to 12:50 pm, combines slack water at low tide, little swell, weak current and the sun high, though with moderate wind.
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.
Dive sites, wrecks and dive shops nearby
We have no dive sites, dive shops or wrecks on record within 12 mi of Koyuk.
If you know one, you can add it to OpenStreetMap and it will show up here after the next update. Missing one? Add it to OpenStreetMap
Sites: © OpenStreetMap contributors (ODbL).
Weather in Koyuk
Now in Koyuk
- Low / high
- 36 / 39 °F
- Rain
- 0.35 in · 100%
- Clouds
- 100%
- Humidity
- 98%
- Dew pointDew point
- 38 °F
- Visibility
- 5.8 mi
- UV indexUV
- 0 · low
- Air qualityAir
- Good · 31
- Saharan dust
- No
Pressure and fishing
- ↗ RisingRising Anglers say fish bite less for a while
- → SteadySteady Anglers expect normal activity
- ↘ FallingFalling · now Anglers say fish feed more before the change
Falling now (−0.12 inHg in 3 hours). Over the next 48 hours: −0.51 inHg. Falling pressure: anglers say fish feed more before the change. 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 am | 3:00 am | 6:00 am | 9:00 am | 12:00 pm | 3:00 pm | 6:00 pm | 9:00 pm |
|---|---|---|---|---|---|---|---|---|
| Sky | Overcast | Overcast | Overcast | Light drizzle | Light rain | Heavy drizzle | Light drizzle | Light drizzle |
| Temperature | 39° | 39° | 38° | 38° | 38° | 38° | 38° | 36° |
| Wind (mph) | 13 SSE | 12 SSE | 11 SSE | 12 SSE | 13 SSE | 17 SSE | 20 SSW | 16 SW |
| Gusts | 26 | 25 | 22 | 23 | 27 | 34 | 40 | 34 |
| Waves | 1.6 ft | 1.4 ft | 1.3 ft | 1.4 ft | 1.7 ft | 2.0 ft | 2.4 ft | 2.2 ft |
| Rain | 0.00 in | 0.00 in | 0.00 in | 0.00 in | 0.06 in | 0.04 in | 0.02 in | 0.00 in |
- 3:00 pm 38° 17 SSE 2.0 ft
- 6:00 pm 38° 20 SSW 2.4 ft
- 9:00 pm 36° 16 SW 2.2 ft
- 12:00 am 36° 14 SSW 1.9 ft
- 3:00 am 36° 14 SSW 1.6 ft
- 6:00 am 36° 11 S 1.4 ft
- 9:00 am 33° 8 SE 1.0 ft
- 12:00 pm 33° 5 ESE 0.7 ft
Next 14 daysComing days
| Day | Sky | Low / high | Max wind | Max wave | High tides |
|---|---|---|---|---|---|
| Today · 28 | 36 / 39 °F | 21 mph S | 2.6 ft | 3:44 am | |
| Thu 29 | 33 / 37 °F | 14 mph SE | 1.9 ft | 4:20 am | |
| Fri 30 | 35 / 39 °F | 12 mph SSE | 1.4 ft | 5:00 am | |
| Sat 31 | 27 / 35 °F | 11 mph NNW | 0.9 ft | 5:44 am | |
| Sun 1 | 21 / 28 °F | 5 mph N | 0.3 ft | 5:29 am | |
| Mon 2 | 21 / 37 °F | 12 mph E | 1.5 ft | 6:15 am | |
| Tue 3 | 34 / 37 °F | 14 mph ESE | 1.4 ft | 7:03 am | |
| Wed 4 | 30 / 37 °F | 8 mph E | 1.2 ft | 7:54 am | |
| Thu 5 | 28 / 30 °F | 12 mph NNE | 1.5 ft | 8:57 am | |
| Fri 6 | 28 / 30 °F | 12 mph NNE | 1.5 ft | 1:06 am · 10:26 am | |
| Sat 7 | 22 / 28 °F | 8 mph N | 1.4 ft | 1:15 am · 12:40 pm | |
| Sun 8 | 20 / 24 °F | 10 mph N | 2.2 ft | 1:35 am | |
| Mon 9 | 18 / 23 °F | 10 mph N | 2.0 ft | 1:59 am | |
| Tue 10 | 16 / 22 °F | 10 mph N | 2.0 ft | 2:23 am |
- Thu 29 Snow 33° / 37° 1.9 ft
- Fri 30 Light snow 35° / 39° 1.4 ft
- Sat 31 Snow 27° / 35° 0.9 ft
- Sun 1 Light drizzle 21° / 28° 0.3 ft
- Mon 2 Light snow 21° / 37° 1.5 ft
- Tue 3 Light drizzle 34° / 37° 1.4 ft
- Wed 4 Light drizzle 30° / 37° 1.2 ft
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.
- Outlook Next few weeks, compared with normal: much warmer and a bit drier. See the outlook →
- Normal Today, warmer than normal for late October (+9.0 °F; normal high: 30 °F). Climate by month →
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 3:46 pm (local time).
The sun in Koyuk
Sunrise and sunset
- First light 8:28 am
- Full dark 8:27 pm
- Civil dawn 9:27 am
- Civil dusk 7:29 pm
- Solar noon 2:28 pm (12° high)
- Daylight 8 h 14 min (−7 min)
- Evening golden hour 5:09 pm
- Full dark 8:27 pm
Golden hour and the day-night map
Today the sun is 92,348,942 mi away and looks 32′ 11″ across.
The moon in Koyuk
Moon phase and position
Today the moon is 226,428 mi away and looks 32′ 47″ across.
Solunar periods
Today's activity: high- 3:34–5:34 am Major · the moon passes overhead · high activity
- 4:06–6:06 pm Major · the moon passes underfoot · high 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.
Where to fish in Koyuk
Piers, ramps and tackle shops nearby
We have no piers, boat ramps or tackle shops on record within 9.3 mi of Koyuk.
If you know one, you can add it to OpenStreetMap and it will show up here after the next update. Missing one? Add it to OpenStreetMap
Spots: © OpenStreetMap contributors (ODbL) and Overture Maps.
Tides near KoyukTides nearby
All places in Alaska, A to Z (305) →Koyuk at a glance
- Town or city of about 342 people. Coordinates: 64.932° N, 161.157° W.
- It is 435 mi northwest of Anchorage, the main place in Alaska. The sun rises 63 min later and sets 27 min later than in Anchorage.
- The nearest tide station, Koyuk, is 0.2 mi to the east.
- Its coast faces south.
Questions about KoyukQuestions
What time is high tide today in Koyuk?
Today in Koyuk there is high tide at 3:44 am (3.8 ft) and low tide at 12:20 pm. Tide coefficient 74.
What time is sunset today in Koyuk?
At 6:35 pm. There is light until the end of civil twilight, at 7:29 pm.
What time is sunrise tomorrow in Koyuk?
At 10:24 am. First light comes at 8:31 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 3:34–5:34 am, Major 4:06–6:06 pm. Today's activity is high.
What's the weather like today in Koyuk?
Light rain, from 36 °F to 39 °F, with a fresh breeze from the south-southeast (18 mph) and a 100% chance of rain.
How is the sea today in Koyuk?
Slight (Douglas 3): 2.1 ft waves with a period of 3.1 s from the south-southeast. The water is 38.5 °F.
When is the best time to visit Koyuk?
The best time to visit Koyuk is from June to July: highs of 63 °F to 65 °F, about 9 rainy days a month and 7 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 Koyuk (public domain), via Slackwater database. Sun and moon: our own calculation with astronomy-engine. Places: GeoNames (CC BY 4.0). Coastline: © OpenStreetMap contributors (ODbL).