Water Temperature of Knik Arm in Anchorage, AK

Current Water Temperature

53.1°F

Measurement Time: Thursday, September 18, 2025, 8:06 AM AKDT

Today's Tides

High: September 18, 5:10 AM, 27.30 ft
 Low: September 18, 12:23 PM, 1.00 ft
High: September 18, 6:26 PM, 28.94 ft

Temperature Locations

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Local Points of Interest

Point MacKenzie; Turnagain Arm; Kincaid Park; Fire Island; Chickaloon Bay

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Knik Arm

Station Name: Anchorage
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
2098 Anchorage Port Rd
Anchorage, AK 99501
Anchorage Municipality County

GPS Coordinates: 61.23750, -149.89040

Nearby Water Temperatures

Matanuska River, Palmer, AK (37.2 mi)
Willow Creek, Willow, AK (37.5 mi)
Kashwitna River, Willow, AK (47.8 mi)
Cook Inlet, Nikiski, AK (63.4 mi)
Talkeetna River, Talkeetna, AK (76.7 mi)
Resurrection Bay, Seward, AK (78.8 mi)
Marathon Creek, Seward, AK (79.3 mi)
Bradley River, Fox River, AK (104.8 mi)
Kachemak Bay, Seldovia, AK (139.0 mi)
Orca Inlet, Cordova, AK (146.6 mi)
Chiniak Bay, Kodiak Station, AK (259.2 mi)
Terror River, Kodiak, AK (270.4 mi)

Weather for Anchorage, Alaska

Current Weather

46.9°F
Overcast
Conditions: Overcast
Humidity: 90%
Feels Like: 46.3°F
Wind: NE 2.9 mph
Wind Gusts: 4.7 mph
Pressure: 29.65 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 55°F
L: 47°F
Patchy rain nearby
Fri
H: 51°F
L: 46°F
Patchy rain nearby
Sat
H: 52°F
L: 47°F
Overcast
Sun
H: 53°F
L: 46°F
Patchy rain nearby
Mon
H: 52°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 2.22 μg/m3
PM10: 3.15 μg/m3
Carbon Monoxide: 283.05 μg/m3
Nitrogen Dioxide: 4.44 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 1:53 PM
Sunset: 8:11 PM
Daylight: 12 hrs 36 mins
Moonrise: 2:57 AM
Moon Transit: 11:44 AM
Moonset: 7:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

3:23 PM - 5:53 PM
11:14 AM - 1:44 PM

Minor Periods

7:25 PM - 8:55 PM
2:27 AM - 3:57 AM

Action Rating: 2 out of 5

Thursday, September 18, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 50.7°F
Average Humidity: 80%
Chance of Rain: 83%
Wind: 6.7 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.71 μg/m3
PM10: 5.1 μg/m3
Carbon Monoxide: 431.79 μg/m3
Nitrogen Dioxide: 15.12 μg/m3
Sulphur Dioxide: 1.78 μg/m3
Ozone: 48.04 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 1:53 PM
Sunset: 8:11 PM
Daylight: 12 hrs 36 mins
Moonrise: 2:57 AM
Moon Transit: 11:44 AM
Moonset: 7:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

3:23 PM - 5:53 PM
11:14 AM - 1:44 PM

Minor Periods

7:25 PM - 8:55 PM
2:27 AM - 3:57 AM

Action Rating: 2 out of 5

Friday, September 19, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 48.2°F
Average Humidity: 90%
Chance of Rain: 88%
Wind: 8.5 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 6.05 μg/m3
PM10: 6.63 μg/m3
Carbon Monoxide: 350.39 μg/m3
Nitrogen Dioxide: 16.69 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 47.12 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 1:53 PM
Sunset: 8:07 PM
Daylight: 12 hrs 30 mins
Moonrise: 4:38 AM
Moon Transit: 12:30 AM
Moonset: 7:52 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

4:08 PM - 6:38 PM
12:00 AM - 2:30 PM

Minor Periods

7:22 PM - 8:52 PM
4:08 AM - 5:38 AM

Action Rating: 2 out of 5

Saturday, September 20, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 49.2°F
Average Humidity: 87%
Chance of Rain: 88%
Wind: 3.4 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.9 μg/m3
PM10: 5.2 μg/m3
Carbon Monoxide: 399.23 μg/m3
Nitrogen Dioxide: 14.79 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 44.32 μg/m3

Astronomical

Sunrise: 7:40 AM
Sun Transit: 1:52 PM
Sunset: 8:04 PM
Daylight: 12 hrs 24 mins
Moonrise: 6:12 AM
Moon Transit: 1:13 PM
Moonset: 7:48 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

4:50 PM - 7:20 PM
12:43 AM - 3:13 PM

Minor Periods

7:18 PM - 8:48 PM
5:42 AM - 7:12 AM

Action Rating: 3 out of 5

Sunday, September 21, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 49.4°F
Average Humidity: 83%
Chance of Rain: 0%
Wind: 5.1 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.3 μg/m3
PM10: 4.45 μg/m3
Carbon Monoxide: 391.24 μg/m3
Nitrogen Dioxide: 11.72 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 42.48 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 1:52 PM
Sunset: 8:01 PM
Daylight: 12 hrs 19 mins
Moonrise: 7:41 AM
Moon Transit: 1:54 PM
Moonset: 7:44 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

5:31 PM - 8:01 PM
1:24 PM - 3:54 PM

Minor Periods

7:14 PM - 8:44 PM
7:11 AM - 8:41 AM

Action Rating: 4 out of 5

Monday, September 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 48.3°F
Average Humidity: 79%
Chance of Rain: 83%
Wind: 4.9 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 6.3 μg/m3
PM10: 6.36 μg/m3
Carbon Monoxide: 362.03 μg/m3
Nitrogen Dioxide: 22.58 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 39.69 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 1:52 PM
Sunset: 7:58 PM
Daylight: 12 hrs 13 mins
Moonrise: 9:09 AM
Moon Transit: 2:34 PM
Moonset: 7:41 PM
Moon Phase: New
Moon Illumination: 2.9%

Best Times for Fishing or Hunting

Major Periods

6:12 PM - 8:42 PM
2:04 PM - 4:34 PM

Minor Periods

7:11 PM - 8:41 PM
8:39 AM - 10:09 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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