Water Temperature of Cook Inlet in Nikiski, AK

Current Water Temperature

50.7°F

Measurement Time: Tuesday, October 14, 2025, 8:12 AM AKDT

Today's Tides

Low: October 14, 5:36 AM, 2.63 ft
 High: October 14, 12:18 PM, 17.40 ft
Low: October 14, 6:08 PM, 8.67 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

37.9°F
Overcast
Conditions: Overcast
Humidity: 93%
Feels Like: 32.7°F
Wind: SSW 6.9 mph
Wind Gusts: 11.9 mph
Pressure: 29.62 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 48°F
L: 43°F
Patchy rain nearby
Wed
H: 46°F
L: 42°F
Patchy rain nearby
Thu
H: 45°F
L: 42°F
Patchy rain nearby
Fri
H: 44°F
L: 41°F
Patchy rain nearby
Sat
H: 41°F
L: 35°F

Air Quality

AQI: 1 - Good
PM2.5: 2.15 μg/m3
PM10: 2.65 μg/m3
Carbon Monoxide: 125.85 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 8:46 AM
Sun Transit: 1:51 PM
Sunset: 6:56 PM
Daylight: 10 hrs 11 mins
Moonrise: 12:02 AM
Moon Transit: 8:58 AM
Moonset: 6:12 PM
Moon Phase: Last Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

8:28 AM - 10:58 AM
12:25 AM - 2:55 PM

Minor Periods

5:42 PM - 7:12 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Hydrologic Outlook issued October 13 at 4:24PM AKDT by NWS Anchorage AK

Effective: Mon October 13, 2025, 4:24 PM
Expires: Tue October 14, 2025, 12:30 AM

ESFAFC Based on rising river levels on the Snow River over the past 48 hours, it is possible that Snow Glacier Dammed Lake is releasing. At this time, we do not expect water levels to reach flood stage on the Snow River, but an additional 2 to 3 feet rise of water levels is likely if a release is occurring. The current water level at Cooper Landing is 9.2 feet. Water levels on Kenai Lake and the Upper Kenai River have started to rise and would likely rise another 1 to 3 feet, cresting Wednesday or Thursday below flood stage if a release is occurring. There is always uncertainty with Glacier Dam Lake releases. Residents living around Kenai Lake should monitor conditions and prepare for rising water levels. This statement will be updated daily as more information is available.


Hydrologic Outlook issued October 14 at 1:24AM AKDT by NWS Anchorage AK

Effective: Tue October 14, 2025, 1:24 AM
Expires: Tue October 14, 2025, 9:30 AM

ESFAFC Based on rising river levels on the Snow River over the past 48 hours, it is possible that Snow Glacier Dammed Lake is releasing. At this time, we do not expect water levels to reach flood stage on the Snow River, but an additional 2 to 3 feet rise of water levels is likely if a release is occurring. As of 1 am, the current water level at Cooper Landing is 9.3 feet. Water levels on Kenai Lake and the Upper Kenai River have started to rise and would likely rise another 1 to 3 feet, cresting Wednesday or Thursday below flood stage if a release is occurring. There is always uncertainty with Glacier Dam Lake releases. Residents living around Kenai Lake should monitor conditions and prepare for rising water levels. This statement will be updated daily as more information is available.


Tuesday, October 14, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 45.1°F
Average Humidity: 81%
Chance of Rain: 88%
Wind: 11.9 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 1.97 μg/m3
PM10: 2.34 μg/m3
Carbon Monoxide: 129.77 μg/m3
Nitrogen Dioxide: 2.01 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 63.96 μg/m3

Astronomical

Sunrise: 8:46 AM
Sun Transit: 1:51 PM
Sunset: 6:56 PM
Daylight: 10 hrs 11 mins
Moonrise: 12:02 AM
Moon Transit: 8:58 AM
Moonset: 6:12 PM
Moon Phase: Last Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

8:28 AM - 10:58 AM
12:25 AM - 2:55 PM

Minor Periods

5:42 PM - 7:12 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, October 15, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 44°F
Average Humidity: 77%
Chance of Rain: 88%
Wind: 26.2 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.83 μg/m3
PM10: 2.09 μg/m3
Carbon Monoxide: 137.25 μg/m3
Nitrogen Dioxide: 2.53 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 68.12 μg/m3

Astronomical

Sunrise: 8:48 AM
Sun Transit: 1:51 PM
Sunset: 6:53 PM
Daylight: 10 hrs 5 mins
Moonrise: 12:50 AM
Moon Transit: 9:48 AM
Moonset: 6:11 PM
Moon Phase: Last Quarter
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

1:15 PM - 3:45 PM
9:18 AM - 11:48 AM

Minor Periods

5:41 PM - 7:11 PM
12:20 AM - 1:50 AM

Action Rating: 4 out of 5

Thursday, October 16, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 43.4°F
Average Humidity: 76%
Chance of Rain: 73%
Wind: 20.4 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.33 μg/m3
PM10: 1.49 μg/m3
Carbon Monoxide: 127.49 μg/m3
Nitrogen Dioxide: 2.49 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 69.6 μg/m3

Astronomical

Sunrise: 8:51 AM
Sun Transit: 1:51 PM
Sunset: 6:50 PM
Daylight: 10 hrs mins
Moonrise: 2:31 AM
Moon Transit: 10:35 AM
Moonset: 6:09 PM
Moon Phase: Last Quarter
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

2:01 PM - 4:31 PM
10:05 AM - 12:35 AM

Minor Periods

5:39 PM - 7:09 PM
2:01 AM - 3:31 AM

Action Rating: 3 out of 5

Friday, October 17, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 43°F
Average Humidity: 87%
Chance of Rain: 89%
Wind: 6.5 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 1.09 μg/m3
PM10: 1.15 μg/m3
Carbon Monoxide: 137.65 μg/m3
Nitrogen Dioxide: 2.08 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 62.92 μg/m3

Astronomical

Sunrise: 8:53 AM
Sun Transit: 1:50 PM
Sunset: 6:48 PM
Daylight: 9 hrs 54 mins
Moonrise: 4:03 AM
Moon Transit: 11:18 AM
Moonset: 6:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

2:43 PM - 5:13 PM
10:48 AM - 1:18 PM

Minor Periods

5:37 PM - 7:07 PM
3:33 AM - 5:03 AM

Action Rating: 3 out of 5

Saturday, October 18, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 39.9°F
Average Humidity: 72%
Chance of Rain: 73%
Wind: 13.6 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 1.38 μg/m3
PM10: 1.53 μg/m3
Carbon Monoxide: 140.39 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 62.46 μg/m3

Astronomical

Sunrise: 8:56 AM
Sun Transit: 1:50 PM
Sunset: 6:45 PM
Daylight: 9 hrs 49 mins
Moonrise: 5:31 AM
Moon Transit: 12:00 AM
Moonset: 6:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

3:24 PM - 5:54 PM
11:30 AM - 2:00 PM

Minor Periods

5:34 PM - 7:04 PM
5:01 AM - 6:31 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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