Water Temperature of Cook Inlet in Nikiski, AK

Current Water Temperature

29.3°F

Measurement Time: Thursday, January 15, 2026, 3:36 AM AKST

Today's Tides

 High: January 15, 3:03 AM, 17.2 ft
Low: January 15, 8:40 AM, 9.0 ft
 High: January 15, 2:24 PM, 18.1 ft
Low: January 15, 9:21 PM, 0.9 ft

Temperature Locations

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Local Points of Interest

East Foreland Lighthouse Reserve; Kalgin Island; Kenai, AK; Trading Bay; Gompertz Channel; Redoubt Bay; Point Possession; Gulf of Alaska

Cook Inlet

Station Name: Nikiski
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet

Sensor Depth: -2 feet

Nearest Address:
48775 Kenai Spur Hwy
Nikiski, AK 99611
Kenai Peninsula County

GPS Coordinates: 60.683333, -151.398056

Nearby Water Temperatures

Knik Arm, Anchorage, AK (63.4 mi)
Bradley River, Fox River, AK (63.4 mi)
Marathon Creek, Seward, AK (77.3 mi)
Resurrection Bay, Seward, AK (77.7 mi)
Kachemak Bay, Seldovia, AK (86.6 mi)
Willow Creek, Willow, AK (90.9 mi)
Kashwitna River, Willow, AK (96.3 mi)
Matanuska River, Palmer, AK (100.5 mi)
Talkeetna River, Talkeetna, AK (123.6 mi)
Orca Inlet, Cordova, AK (191.4 mi)
Chiniak Bay, Kodiak Station, AK (207.8 mi)
Terror River, Kodiak, AK (215.8 mi)
Akhiok Bay, Alitak, AK (280.7 mi)

Weather for Nikiski, Alaska

Current Weather

21.7°F
Patchy light snow
Patchy light snow
13.3°F
16.1°F
86%
NE 6.7 mph
12.2 mph
6.6°F
15°F
0 in
100%
1 mi
1019 mbar
0

Five Day Weather Forecast

Heavy snow
Thu
H: 37°F
L: 14°F
Light sleet
Fri
H: 33°F
L: 32°F
Mist
Sat
H: 32°F
L: 26°F
Mist
Sun
H: 29°F
L: 20°F
Partly Cloudy
Mon
H: 27°F
L: 21°F

Air Quality

PM2.5: 2.15 μg/m3
PM10: 2.45 μg/m3
Carbon Monoxide: 146.85 μg/m3
Nitrogen Dioxide: 4.25 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 9:58 AM
Sun Transit: 1:15 PM
Sunset: 4:33 PM
Daylight: 6 hrs 35 mins
Moonrise: 9:40 AM
Moon Transit: 10:48 AM
Moonset: 11:54 AM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

2:15 PM - 4:45 PM
10:18 AM - 12:48 AM

Minor Periods

11:24 AM - 12:54 AM
9:10 AM - 10:40 AM

Action Rating: 4 out of 5

Winter Storm Watch issued January 14 at 2:34PM AKST until January 16 at 6:00AM AKST by NWS Anchorage AK

Effective: Wed January 14, 2026, 2:34 PM
Expires: Wed January 14, 2026, 11:00 PM

* WHAT...Heavy mixed precipitation possible. Total snow accumulations between 3 and 6 inches. Ice accumulations in the Kenai Peninsula around two tenths of an inch. Winds could gust as high as 45 mph. * WHERE...East Turnagain Arm, Western Kenai Peninsula, Southern Kenai Mtns, Interior Kenai Peninsula, and Turnagain Pass. * WHEN...From midnight AKST tonight through late Thursday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...A large moisture plume alongside a warm air mass and a low pressure system will rise into Southcentral Alaska starting Wednesday night. Precipitation will first start as snowfall. Once temperatures warm above freezing higher in elevation, snowfall will transition to freezing rain. Blowing snow is possible before the transition due to gusty winds. Once surface temperatures rise above freezing, precipitation will become mostly rain. However, as the rain falls on frozen surfaces, slippery roads and surfaces will cause hazardous driving and travel conditions. There is much uncertainty with this event and the forecast is subject to change.

Monitor the latest forecasts for updates on this situation.


Avalanche Warning issued January 14 at 7:12PM AKST by NWS Anchorage AK

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Wed January 14, 2026, 7:12 PM
Expires: Fri January 16, 2026, 6:00 AM

SABAFC The following message is transmitted at the request of the Chugach National Forest Avalanche Center. ...THE CHUGACH NATIONAL FOREST AVALANCHE INFORMATION CENTER HAS ISSUED AN AVALANCHE WARNING FOR FOR THE FOLLOWING AREAS: ANCHORAGE HILLSIDE, GIRDWOOD, PORTAGE, INTERIOR KENAI PENINSULA, AND THE SOUTHERN KENAI MOUNTAINS... * WHAT...The backcountry avalanche danger is HIGH. Very dangerous avalanche conditions exist. * WHERE...For the Western Chugach and Kenai Mountains in and around Anchorage, Girdwood, Portage, Turnagain Pass, Summit Lake, Lost Lake, and Seward. * WHEN...In effect Thursday 6:00 AM AKST through Friday 6:00 AM AKST. * IMPACTS...An atmospheric river will impact southcentral Alaska. Strong winds, heavy snowfall, and heavy rain will create widespread areas of unstable snow. Large natural avalanches are likely and human triggered avalanches are very likely. Debris from avalanches above may run into valley bottoms. Avalanche conditions will remain very dangerous during and immediately after the storm finishes. * PRECAUTIONARY / PREPAREDNESS ACTIONS...Travel in avalanche terrain is NOT recommended. Backcountry travelers should stay off and out from underneath slopes steeper than 30 degrees. Avalanches may run long distances. Outside of the backcountry, roof avalanches are likely, pay attention to children, people and pets under roofs shedding snow. Similar avalanche danger may exist outside the coverage area of this or any avalanche center. For more information visit cnfaic.org.


Winter Weather Advisory issued January 14 at 4:41PM AKST until January 16 at 3:00PM AKST by NWS Anchorage AK

Effective: Wed January 14, 2026, 4:41 PM
Expires: Thu January 15, 2026, 7:45 AM

* WHAT...Mixed precipitation expected. Total snow accumulations between 2 and 6 inches and ice accumulations around two tenths of an inch possible. * WHERE...NW Kenai Peninsula, SW Kenai Peninsula, and Skilak Lake. * WHEN...From 3 AM Thursday to 3 PM AKST Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes. * ADDITIONAL DETAILS...Light snow will spread over the Sterling Highway Thursday morning. Temperatures will warm starting Thursday afternoon, transitioning precipitation to freezing rain and rain. Total liquid equivalent for this storm could reach 0.75 to 1.5 inches. Rain falling on frozen and snow covered surfaces will create icy conditions.

Slow down and use caution while traveling. For the latest road conditions call 5 1 1 or visit 511.alaska.gov.


Winter Weather Advisory issued January 14 at 4:41PM AKST until January 16 at 3:00PM AKST by NWS Anchorage AK

Effective: Wed January 14, 2026, 4:41 PM
Expires: Thu January 15, 2026, 7:45 AM

* WHAT...Snow, freezing rain and heavy rain. Total snow accumulations between 2 and 8 inches and ice accumulations up to two tenths of an inch. Winds gusting as high as 50 mph through Portage and eastern Turnagain Arm. * WHERE...East Turnagain Arm, Interior Kenai Peninsula, and Turnagain Pass. * WHEN...From 3 AM Thursday to 3 PM AKST Friday. * IMPACTS...Travel could be very difficult. Areas of blowing snow early Thursday morning could significantly reduce visibility. The hazardous conditions could impact the Thursday morning and evening commutes. * ADDITIONAL DETAILS...A strong front and atmospheric river will move into the eastern Kenai Peninsula and Eastern Turnagain Arm Thursday morning and remain in place through Friday. Snow levels will gradually rise Thursday to between 1600 and 2200 ft. Heavy rain falling on snow covered and frozen roadways will cause hazardous conditions. Hydroplaning will be likely in areas. Total liquid amounts of 1.8 to 4.5 inches expected.

Slow down and use caution while traveling. For the latest road conditions call 5 1 1 or visit 511.alaska.gov.


Flood Watch issued January 14 at 9:49PM AKST until January 16 at 6:00PM AKST by NWS Anchorage AK

Effective: Wed January 14, 2026, 9:49 PM
Expires: Thu January 15, 2026, 5:00 PM

* WHAT...Flooding caused by excessive rainfall and frozen ground surface is possible. * WHERE...The following area, Southern Kenai Mtns. This includes the city of Seward. * WHEN...From 9 AM AKST Thursday through Friday afternoon. * IMPACTS...Excessive runoff from rainfall, frozen ground surfaces, and snowmelt may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Snow covered drains will exacerbate any ponding on roadways. * ADDITIONAL DETAILS... - An atmospheric river will bring warmer temperatures and heavy rainfall at lower elevations to the eastern Kenai Peninsula, including Seward. The long stretch of cold weather has resulted in frozen ground surfaces which will allow for increased runoff concerns. Up to several inches of rainfall is expected and will lead to ponding on roadways and localized flooding in low-lying areas and areas where storm drains remain covered. Expect rises on area creeks and rivers. - Http://www.weather.gov/safety/flood - Storm drains should be cleared of snow as much as possible.

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Stay tuned to further developments by listening to your local radio, television, or NOAA Weather Radio for further information.


Thursday, January 15, 2026

Weather Forecast

Heavy snow
37.2°F
14.3°F
24.4°F
93%
0.36 in
86%
37%
19.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 2.15 μg/m3
Carbon Monoxide: 157.01 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 74.12 μg/m3

Astronomical

Sunrise: 9:58 AM
Sun Transit: 1:15 PM
Sunset: 4:33 PM
Daylight: 6 hrs 35 mins
Moonrise: 9:40 AM
Moon Transit: 10:48 AM
Moonset: 11:54 AM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

2:15 PM - 4:45 PM
10:18 AM - 12:48 AM

Minor Periods

11:24 AM - 12:54 AM
9:10 AM - 10:40 AM

Action Rating: 4 out of 5

Friday, January 16, 2026

Weather Forecast

Light sleet
33.3°F
32°F
33°F
96%
0.84 in
85%
48%
13 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.53 μg/m3
PM10: 1.77 μg/m3
Carbon Monoxide: 139.49 μg/m3
Nitrogen Dioxide: 2.34 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 78.56 μg/m3

Astronomical

Sunrise: 9:56 AM
Sun Transit: 1:15 PM
Sunset: 4:36 PM
Daylight: 6 hrs 39 mins
Moonrise: 10:30 AM
Moon Transit: 11:40 AM
Moonset: 12:55 AM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

3:07 PM - 5:37 PM
11:10 AM - 1:40 PM

Minor Periods

12:25 AM - 1:55 PM
10:00 AM - 11:30 AM

Action Rating: 3 out of 5

Saturday, January 17, 2026

Weather Forecast

Mist
32.1°F
25.8°F
30.2°F
96%
0.01 in
83%
21%
8.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.73 μg/m3
PM10: 3.47 μg/m3
Carbon Monoxide: 161.58 μg/m3
Nitrogen Dioxide: 3.65 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 73 μg/m3

Astronomical

Sunrise: 9:54 AM
Sun Transit: 1:15 PM
Sunset: 4:38 PM
Daylight: 6 hrs 44 mins
Moonrise: 10:44 AM
Moon Transit: 12:33 AM
Moonset: 2:30 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

4:00 PM - 6:30 PM
12:03 AM - 2:33 PM

Minor Periods

2:00 PM - 3:30 PM
10:14 AM - 11:44 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Mist
29°F
19.5°F
24°F
96%
0 in
0%
0%
5.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.42 μg/m3
PM10: 4.02 μg/m3
Carbon Monoxide: 174.56 μg/m3
Nitrogen Dioxide: 6.31 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 65.85 μg/m3

Astronomical

Sunrise: 9:53 AM
Sun Transit: 1:16 PM
Sunset: 4:40 PM
Daylight: 6 hrs 48 mins
Moonrise: 10:47 AM
Moon Transit: 1:24 PM
Moonset: 4:13 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

4:50 PM - 7:20 PM
12:54 AM - 3:24 PM

Minor Periods

3:43 PM - 5:13 PM
10:17 AM - 11:47 AM

Action Rating: 5 out of 5

Monday, January 19, 2026

Weather Forecast

Partly Cloudy
26.7°F
20.7°F
24.3°F
93%
0 in
0%
0%
6.3 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 9:51 AM
Sun Transit: 1:16 PM
Sunset: 4:43 PM
Daylight: 6 hrs 52 mins
Moonrise: 10:47 AM
Moon Transit: 2:13 PM
Moonset: 5:54 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

5:39 PM - 8:09 PM
1:43 PM - 4:13 PM

Minor Periods

5:24 PM - 6:54 PM
10:17 AM - 11:47 AM

Action Rating: 5 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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