Water Temperature of the Pacific Ocean Near Eureka, CA

Current Water Temperature

54.3°F

Measurement Time: Monday, December 1, 2025, 4:30 AM PST

Temperature Locations

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Pacific Ocean

Station Name: EEL RIVER - 17NM WSW of Eureka, CA
Station Type: Other
Data Source: National Data Buoy Center

Elevation Above Sea Level: 0 feet / 0 meters

Nearest Address:
Offshore
Eureka, CA 95503
Humboldt County

GPS Coordinates: 40.748, -124.527

Nearby Water Temperatures

Pacific Ocean, Manila, CA (13.5 mi)
Humboldt Bay, Eureka, CA (16.3 mi)
Pacific Ocean, Petrolia, CA (33.1 mi)
Trinity River, Hoopa, CA (49.2 mi)
Klamath River, Klamath, CA (59.9 mi)
Klamath River, Orleans, CA (64.4 mi)
Crescent Harbor, Crescent City, CA (71.2 mi)
Trinity River, Helena, CA (73.9 mi)
Trinity River, Douglas City, CA (82.6 mi)
Elder Creek, Branscomb, CA (84.4 mi)
Trinity River, Lewiston, CA (90.4 mi)
East Fork Russian River, Ukiah, CA (127.4 mi)
Arena Cove, Point Arena, CA (133.9 mi)
Russian River, Hopland, CA (140.1 mi)
Mill Creek, Los Milinos, CA (140.1 mi)

Weather Near Eureka, California

Current Weather

39°F
Clear
Conditions: Clear
Humidity: 100%
Feels Like: 36.4°F
Wind: ENE 3.8 mph
Wind Gusts: 8 mph
Pressure: 30.1 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Mon
H: 60°F
L: 44°F
Partly Cloudy
Tue
H: 59°F
L: 49°F
Sunny
Wed
H: 57°F
L: 46°F
Patchy rain nearby
Thu
H: 56°F
L: 46°F
Patchy rain nearby
Fri
H: 54°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 5.05 μg/m3
PM10: 6.15 μg/m3
Carbon Monoxide: 188.85 μg/m3
Nitrogen Dioxide: 6.85 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 60 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:07 AM
Sunset: 4:51 PM
Daylight: 9 hrs 28 mins
Moonrise: 2:22 PM
Moon Transit: 9:24 PM
Moonset: 3:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

3:41 AM - 6:11 AM
8:54 PM - 11:24 PM

Minor Periods

1:52 PM - 3:22 PM
2:53 AM - 4:23 AM

Action Rating: 2 out of 5

Frost Advisory issued November 30 at 2:03PM PST until December 1 at 9:00AM PST by NWS Eureka CA

Effective: Sun November 30, 2025, 2:03 PM
Expires: Sun November 30, 2025, 10:15 PM

* WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Northern Humboldt Coast. * WHEN...From 4 AM to 9 AM PST Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Beach Hazards Statement issued November 30 at 1:57PM PST until December 2 at 8:00AM PST by NWS Eureka CA

Effective: Sun November 30, 2025, 1:57 PM
Expires: Sun November 30, 2025, 10:30 PM

* WHAT...Increased threat of sneaker waves expected. A very long period swell rapidly building Monday will have set behavior with 10 to 20 minutes or longer between the largest waves. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coasts. * WHEN...From Monday morning through Tuesday morning. * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. * ADDITIONAL DETAILS...Large tidal swings will increase the threat when the tide is rapidly rising the morning.

Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean.


Beach Hazards Statement issued November 30 at 10:01PM PST until December 2 at 8:00AM PST by NWS Eureka CA

Effective: Sun November 30, 2025, 10:01 PM
Expires: Mon December 1, 2025, 4:00 PM

* WHAT...Increased threat of sneaker waves expected. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...From 8 AM PST Monday through Tuesday morning. * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath.

Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean.


Frost Advisory issued November 30 at 9:52PM PST until December 1 at 9:00AM PST by NWS Eureka CA

Effective: Sun November 30, 2025, 9:52 PM
Expires: Mon December 1, 2025, 6:00 AM

* WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Northern Humboldt Coast. * WHEN...From 4 AM to 9 AM PST Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Monday, December 1, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 50.3°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 5.1 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.94 μg/m3
PM10: 5.83 μg/m3
Carbon Monoxide: 199.65 μg/m3
Nitrogen Dioxide: 7.72 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 48.28 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 12:07 AM
Sunset: 4:51 PM
Daylight: 9 hrs 28 mins
Moonrise: 2:22 PM
Moon Transit: 9:24 PM
Moonset: 3:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

3:41 AM - 6:11 AM
8:54 PM - 11:24 PM

Minor Periods

1:52 PM - 3:22 PM
2:53 AM - 4:23 AM

Action Rating: 2 out of 5

Tuesday, December 2, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 53.3°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 14.8 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 7.56 μg/m3
PM10: 9.14 μg/m3
Carbon Monoxide: 256.61 μg/m3
Nitrogen Dioxide: 13.51 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 47.56 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:07 AM
Sunset: 4:51 PM
Daylight: 9 hrs 27 mins
Moonrise: 2:53 PM
Moon Transit: 10:21 PM
Moonset: 4:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

4:35 AM - 7:05 AM
12:00 AM - 12:00 AM

Minor Periods

2:23 PM - 3:53 PM
4:12 AM - 5:42 AM

Action Rating: 3 out of 5

Wednesday, December 3, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 50.3°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 3.43 μg/m3
PM10: 4.12 μg/m3
Carbon Monoxide: 160.93 μg/m3
Nitrogen Dioxide: 4.23 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 63.24 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:08 AM
Sunset: 4:51 PM
Daylight: 9 hrs 26 mins
Moonrise: 3:33 PM
Moon Transit: 11:23 PM
Moonset: 6:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

5:33 AM - 8:03 AM
12:00 AM - 12:00 AM

Minor Periods

3:03 PM - 4:33 PM
5:34 AM - 7:04 AM

Action Rating: 4 out of 5

Thursday, December 4, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 49.4°F
Average Humidity: 64%
Chance of Rain: 82%
Wind: 6.7 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 4.17 μg/m3
Carbon Monoxide: 225.36 μg/m3
Nitrogen Dioxide: 9 μg/m3
Sulphur Dioxide: 1.78 μg/m3
Ozone: 46.88 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:08 AM
Sunset: 4:51 PM
Daylight: 9 hrs 25 mins
Moonrise: 4:24 PM
Moon Transit: 12:00 AM
Moonset: 7:26 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:37 AM - 9:07 AM

Minor Periods

3:54 PM - 5:24 PM
6:56 AM - 8:26 AM

Action Rating: 3 out of 5

Friday, December 5, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 50.9°F
Average Humidity: 85%
Chance of Rain: 89%
Wind: 14.1 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 5.28 μg/m3
PM10: 6.28 μg/m3
Carbon Monoxide: 196.76 μg/m3
Nitrogen Dioxide: 7.43 μg/m3
Sulphur Dioxide: 2.19 μg/m3
Ozone: 54.54 μg/m3

Astronomical

Sunrise: 7:27 AM
Sun Transit: 12:08 AM
Sunset: 4:51 PM
Daylight: 9 hrs 24 mins
Moonrise: 5:27 PM
Moon Transit: 12:30 AM
Moonset: 8:42 AM
Moon Phase: Full
Moon Illumination: 99.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
7:45 AM - 10:15 AM

Minor Periods

4:57 PM - 6:27 PM
8:12 AM - 9:42 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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