Water Temperature of Cook Inlet in Nikiski, AK

Current Water Temperature

55.8°F

Measurement Time: Thursday, September 4, 2025, 6:36 AM AKDT

Today's Tides

High: September 4, 2:56 AM, 17.47 ft
 Low: September 4, 9:39 AM, 1.36 ft
High: September 4, 4:00 PM, 18.73 ft
 Low: September 4, 9:50 PM, 6.37 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

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Cook Inlet

Station Name: Nikiski
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet / 0 meters

Sensor Depth: -2.0 feet / -0.6 meters

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

55.6°F
Overcast
Conditions: Overcast
Humidity: 100%
Feels Like: 54.3°F
Wind: WSW 6 mph
Wind Gusts: 9 mph
Pressure: 29.96 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Thu
H: 56°F
L: 54°F
Partly Cloudy
Fri
H: 57°F
L: 52°F
Patchy rain nearby
Sat
H: 54°F
L: 51°F
Moderate rain
Sun
H: 56°F
L: 49°F
Patchy rain nearby
Mon
H: 56°F
L: 50°F

Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 2.41 μg/m3
Carbon Monoxide: 216.45 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 44 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 2:04 PM
Sunset: 9:00 PM
Daylight: 13 hrs 52 mins
Moonrise: 8:54 PM
Moon Transit: 12:00 AM
Moonset: 1:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:42 AM - 5:12 AM

Minor Periods

8:24 PM - 9:54 PM
1:17 AM - 2:47 AM

Action Rating: 2 out of 5

Thursday, September 4, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 55.3°F
Average Humidity: 94%
Chance of Rain: 95%
Wind: 11.9 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 3.66 μg/m3
PM10: 4.74 μg/m3
Carbon Monoxide: 212.6 μg/m3
Nitrogen Dioxide: 6.4 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 40.56 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 2:04 PM
Sunset: 9:00 PM
Daylight: 13 hrs 52 mins
Moonrise: 8:54 PM
Moon Transit: 12:00 AM
Moonset: 1:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:42 AM - 5:12 AM

Minor Periods

8:24 PM - 9:54 PM
1:17 AM - 2:47 AM

Action Rating: 2 out of 5

Friday, September 5, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 54.1°F
Average Humidity: 82%
Chance of Rain: 0%
Wind: 10.7 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 2.93 μg/m3
PM10: 3.82 μg/m3
Carbon Monoxide: 250.71 μg/m3
Nitrogen Dioxide: 6.15 μg/m3
Sulphur Dioxide: 2.09 μg/m3
Ozone: 43.2 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 2:04 PM
Sunset: 8:57 PM
Daylight: 13 hrs 47 mins
Moonrise: 8:52 PM
Moon Transit: 12:07 AM
Moonset: 3:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:34 AM - 6:04 AM

Minor Periods

8:22 PM - 9:52 PM
3:07 AM - 4:37 AM

Action Rating: 2 out of 5

Saturday, September 6, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 52.5°F
Average Humidity: 82%
Chance of Rain: 85%
Wind: 10.1 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 4.1 μg/m3
Carbon Monoxide: 268.55 μg/m3
Nitrogen Dioxide: 12.3 μg/m3
Sulphur Dioxide: 3.42 μg/m3
Ozone: 49.72 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 2:03 PM
Sunset: 8:54 PM
Daylight: 13 hrs 42 mins
Moonrise: 8:50 PM
Moon Transit: 12:58 AM
Moonset: 5:23 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:28 AM - 2:58 AM
4:25 AM - 6:55 AM

Minor Periods

8:20 PM - 9:50 PM
4:53 AM - 6:23 AM

Action Rating: 4 out of 5

Sunday, September 7, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 51.6°F
Average Humidity: 88%
Chance of Rain: 87%
Wind: 10.7 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 4.97 μg/m3
PM10: 6.42 μg/m3
Carbon Monoxide: 265.73 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 66.32 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 2:03 PM
Sunset: 8:51 PM
Daylight: 13 hrs 36 mins
Moonrise: 8:47 PM
Moon Transit: 1:47 AM
Moonset: 7:07 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
5:13 AM - 7:43 AM

Minor Periods

8:17 PM - 9:47 PM
6:37 AM - 8:07 AM

Action Rating: 4 out of 5

Monday, September 8, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 52.1°F
Average Humidity: 83%
Chance of Rain: 89%
Wind: 4.5 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 5.01 μg/m3
PM10: 6.32 μg/m3
Carbon Monoxide: 269.25 μg/m3
Nitrogen Dioxide: 3.84 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 54.38 μg/m3

Astronomical

Sunrise: 7:17 AM
Sun Transit: 2:03 PM
Sunset: 8:48 PM
Daylight: 13 hrs 31 mins
Moonrise: 8:45 PM
Moon Transit: 11:28 AM
Moonset: 8:50 AM
Moon Phase: Full
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

10:58 AM - 1:28 PM
10:58 AM - 1:28 PM

Minor Periods

8:15 PM - 9:45 PM
8:20 AM - 9:50 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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