Water Temperature of Cook Inlet in Nikiski, AK

Current Water Temperature

52.9°F

Measurement Time: Wednesday, July 15, 2026, 7:42 AM AKDT

Today's Tides

 High: July 15, 5:30 AM, 23.1 ft
Low: July 15, 12:24 PM, -5.0 ft
 High: July 15, 6:37 PM, 21.9 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

52.2°F
Overcast
Overcast
47.5°F
49.7°F
76%
S 14.5 mph
20.8 mph
44.4°F
46°F
0 in
100%
9 mi
1011 mbar
0.2

Five Day Weather Forecast

Overcast
Wed
H: 56°F
L: 50°F
Light rain
Thu
H: 52°F
L: 48°F
Light drizzle
Fri
H: 51°F
L: 49°F
Patchy rain nearby
Sat
H: 53°F
L: 50°F
Light drizzle
Sun
H: 57°F
L: 50°F

Air Quality

AQI: 1 - Good
PM2.5: 0.9 μg/m3
PM10: 1.4 μg/m3
Carbon Monoxide: 83 μg/m3
Nitrogen Dioxide: 2.5 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 51 μg/m3

Astronomical

Sunrise: 5:03 AM
Sun Transit: 2:11 PM
Sunset: 12:20 AM
Daylight: -5 hrs 17 mins
Moonrise: 6:49 AM
Moon Transit: 3:43 PM
Moonset: 12:58 AM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

7:10 PM - 9:40 PM
3:13 PM - 5:43 PM

Minor Periods

6:19 AM - 7:49 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Small Craft Advisory issued July 14 at 3:05PM AKDT until July 15 at 5:00PM AKDT by NWS Anchorage AK

Effective: Tue July 14, 2026, 3:05 PM
Expires: Wed July 15, 2026, 4:30 AM

Coastal Waters Forecast for the Northern Gulf of Alaska Coast up to 100 nm out including Kodiak Island and Cook Inlet. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TONIGHT...S wind 20 kt. Seas 3 ft building to 5 ft after midnight. Rain. .WED...S wind 25 kt. Seas 5 ft. .WED NIGHT...S wind 20 kt. Seas 7 ft subsiding to 4 ft after midnight. Rain. .THU...SE wind 10 kt. Seas 2 ft. .THU NIGHT...Variable wind less than 10 kt. Seas 2 ft. .FRI THROUGH SAT...S wind 10 kt. Seas 3 ft. .SUN...NE wind 15 kt. Seas 4 ft.
Wednesday, July 15, 2026

Weather Forecast

Overcast
55.7°F
49.8°F
52.7°F
80%
0.05 in
61%
0%
15 mph
4.7


Air Quality

AQI: 1 - Good
PM2.5: 1.13 μg/m3
PM10: 1.55 μg/m3
Carbon Monoxide: 88.54 μg/m3
Nitrogen Dioxide: 3.33 μg/m3
Sulphur Dioxide: 0.49 μg/m3
Ozone: 44.25 μg/m3

Astronomical

Sunrise: 5:03 AM
Sun Transit: 2:11 PM
Sunset: 12:20 AM
Daylight: -5 hrs 17 mins
Moonrise: 6:49 AM
Moon Transit: 3:43 PM
Moonset: 12:58 AM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

7:10 PM - 9:40 PM
3:13 PM - 5:43 PM

Minor Periods

6:19 AM - 7:49 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Thursday, July 16, 2026

Weather Forecast

Light rain
51.5°F
47.8°F
49.5°F
88%
0.7 in
90%
0%
15 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 4.4 μg/m3
PM10: 5.83 μg/m3
Carbon Monoxide: 95.67 μg/m3
Nitrogen Dioxide: 9.68 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 39.13 μg/m3

Astronomical

Sunrise: 5:05 AM
Sun Transit: 2:11 PM
Sunset: 12:18 AM
Daylight: -5 hrs 13 mins
Moonrise: 8:40 AM
Moon Transit: 4:35 PM
Moonset: 12:59 AM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

8:02 PM - 10:32 PM
4:05 PM - 6:35 PM

Minor Periods

8:10 AM - 9:40 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Friday, July 17, 2026

Weather Forecast

Light drizzle
51.3°F
49.1°F
50.2°F
87%
0.24 in
89%
0%
14.5 mph
1.8


Air Quality

AQI: 1 - Good
PM2.5: 0.43 μg/m3
PM10: 0.49 μg/m3
Carbon Monoxide: 95.29 μg/m3
Nitrogen Dioxide: 4.28 μg/m3
Sulphur Dioxide: 0.62 μg/m3
Ozone: 52.88 μg/m3

Astronomical

Sunrise: 5:07 AM
Sun Transit: 2:11 PM
Sunset: 12:16 AM
Daylight: -5 hrs 9 mins
Moonrise: 10:23 AM
Moon Transit: 5:23 PM
Moonset: 12:58 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

8:49 PM - 11:19 PM
4:53 PM - 7:23 PM

Minor Periods

9:53 AM - 11:23 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, July 18, 2026

Weather Forecast

Patchy rain nearby
52.9°F
49.9°F
50.9°F
88%
0.27 in
88%
0%
8.7 mph
3.4


Air Quality

AQI: 1 - Good
PM2.5: 0.9 μg/m3
PM10: 1.14 μg/m3
Carbon Monoxide: 92.36 μg/m3
Nitrogen Dioxide: 6.36 μg/m3
Sulphur Dioxide: 0.84 μg/m3
Ozone: 44.96 μg/m3

Astronomical

Sunrise: 5:10 AM
Sun Transit: 2:11 PM
Sunset: 12:14 AM
Daylight: -5 hrs 5 mins
Moonrise: 11:59 AM
Moon Transit: 6:08 PM
Moonset: 12:57 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
5:38 PM - 8:08 PM

Minor Periods

11:29 AM - 12:59 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, July 19, 2026

Weather Forecast

Light drizzle
56.5°F
49.7°F
52.5°F
77%
0.19 in
80%
0%
24.4 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 0.96 μg/m3
PM10: 1.3 μg/m3
Carbon Monoxide: 99.8 μg/m3
Nitrogen Dioxide: 3.74 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 44.8 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 2:11 PM
Sunset: 12:12 AM
Daylight: -5 hrs 1 mins
Moonrise: 1:31 PM
Moon Transit: 6:51 PM
Moonset: 12:55 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:21 PM - 8:51 PM

Minor Periods

1:01 PM - 2:31 PM
12:00 AM - 12:00 AM

Action Rating: 3 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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