Water Temperature of the Pacific Ocean Near Eureka, CA

Current Water Temperature

53.1°F

Measurement Time: Monday, June 8, 2026, 8:30 AM PDT

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

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

57°F
Overcast
Overcast
56.5°F
54.1°F
87%
NNE 4.9 mph
10.3 mph
51.9°F
53.1°F
0 in
0%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 58°F
L: 49°F
Fog
Tue
H: 64°F
L: 50°F
Sunny
Wed
H: 63°F
L: 49°F
Sunny
Thu
H: 62°F
L: 49°F
Sunny
Fri
H: 61°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 7.8 μg/m3
PM10: 11 μg/m3
Carbon Monoxide: 92 μg/m3
Nitrogen Dioxide: 5.5 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 53 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:23 PM
Sunset: 8:49 PM
Daylight: 14 hrs 51 mins
Moonrise: 4:45 AM
Moon Transit: 12:50 AM
Moonset: 8:48 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

8:04 PM - 10:34 PM
12:20 AM - 2:50 PM

Minor Periods

8:18 PM - 9:48 PM
4:15 AM - 5:45 AM

Action Rating: 4 out of 5

Coastal Flood Advisory issued July 13 at 2:36PM PDT until July 14 at 1:00AM PDT by NWS Eureka CA

Effective: Mon July 13, 2026, 2:36 PM
Expires: Tue July 14, 2026, 1:00 AM

* WHAT...High astronomical tides will cause minor flooding in low lying areas around Humboldt Bay. Up to one half foot of saltwater inundation above ground level is possible near shorelines and tidal waterways. Between 8.8 and 9.0 feet MLLW at the North Spit tide gauge is predicted. * WHERE...Northern Coastal Humboldt County. * WHEN...From 10 PM this evening to 1 AM PDT Tuesday. High tide is at 11:21PM at the Humboldt Bay North Spit tide gauge. Saltwater inundation will be possible 1 to 2 hours before and after high tide. * IMPACTS...Flooding of low lying areas around Humboldt Bay including parks and roads with only isolated closures expected. Flooding will likely impact Jackson Ranch Road in the Arcata Bottoms and several roads in King Salmon.

A Coastal Flood Advisory indicates that onshore winds and tides will combine to generate flooding of low areas along the shore. Feet Above Ground is locally defined as feet above the Highest Astronomical Tide or HAT.


Red Flag Warning issued July 13 at 1:40PM PDT until July 15 at 2:00AM PDT by NWS Eureka CA

Effective: Mon July 13, 2026, 1:40 PM
Expires: Tue July 14, 2026, 4:00 AM

The National Weather Service in Eureka has issued a Red Flag Warning, which is in effect from 1 PM Tuesday to 2 AM PDT Wednesday. * AFFECTED AREA...Trinity County, Northeastern Humboldt County, and southwestern Siskiyou County. * THUNDERSTORMS...Isolated to scattered dry thunderstorms Tuesday afternoon and evening. Activity may continue overnight into early Wednesday morning. * OUTFLOW WINDS...Gusty and erratic outflow winds likely with any thunderstorms. Winds may gust to 50 mph or higher with the strongest cells. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.


Small Craft Advisory issued July 13 at 8:31AM PDT until July 13 at 5:00PM PDT by NWS Eureka CA

Effective: Mon July 13, 2026, 8:31 AM
Expires: Mon July 13, 2026, 4:45 PM

* WHAT...North winds around 15 kt and seas around 6 feet. * WHERE...Waters from Pt. St. George to Cape Mendocino CA from 10 to 60 nm. * WHEN...Until 5 PM PDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Monday, July 13, 2026

Weather Forecast

Sunny
57.6°F
48.7°F
54°F
93%
0 in
23%
0%
8.5 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 7.68 μg/m3
PM10: 10.18 μg/m3
Carbon Monoxide: 89.13 μg/m3
Nitrogen Dioxide: 7.29 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 51.58 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:23 PM
Sunset: 8:49 PM
Daylight: 14 hrs 51 mins
Moonrise: 4:45 AM
Moon Transit: 12:50 AM
Moonset: 8:48 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

8:04 PM - 10:34 PM
12:20 AM - 2:50 PM

Minor Periods

8:18 PM - 9:48 PM
4:15 AM - 5:45 AM

Action Rating: 4 out of 5

Tuesday, July 14, 2026

Weather Forecast

Fog
63.5°F
50.4°F
56.2°F
87%
0 in
30%
0%
8.3 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 7.9 μg/m3
PM10: 10.55 μg/m3
Carbon Monoxide: 87.25 μg/m3
Nitrogen Dioxide: 6.51 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 50.88 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:24 PM
Sunset: 8:49 PM
Daylight: 14 hrs 50 mins
Moonrise: 6:04 AM
Moon Transit: 1:53 PM
Moonset: 9:31 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

9:06 PM - 11:36 PM
1:23 PM - 3:53 PM

Minor Periods

9:01 PM - 10:31 PM
5:34 AM - 7:04 AM

Action Rating: 6 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
63°F
48.8°F
55.7°F
81%
0 in
17%
0%
8.1 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 8.2 μg/m3
PM10: 11.53 μg/m3
Carbon Monoxide: 87.29 μg/m3
Nitrogen Dioxide: 4.63 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 54.63 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:24 PM
Sunset: 8:48 PM
Daylight: 14 hrs 48 mins
Moonrise: 7:24 AM
Moon Transit: 2:51 PM
Moonset: 10:05 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:21 PM - 4:51 PM

Minor Periods

9:35 PM - 11:05 PM
6:54 AM - 8:24 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
61.9°F
49.2°F
55.8°F
85%
0 in
20%
0%
9.2 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 10.5 μg/m3
PM10: 15.27 μg/m3
Carbon Monoxide: 88.75 μg/m3
Nitrogen Dioxide: 1.89 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 61.13 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:24 PM
Sunset: 8:48 PM
Daylight: 14 hrs 47 mins
Moonrise: 8:43 AM
Moon Transit: 3:44 PM
Moonset: 10:33 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:14 PM - 5:44 PM

Minor Periods

10:03 PM - 11:33 PM
8:13 AM - 9:43 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
61°F
51.5°F
56.3°F
86%
0 in
16%
0%
9.6 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 10.81 μg/m3
PM10: 15.46 μg/m3
Carbon Monoxide: 103.05 μg/m3
Nitrogen Dioxide: 2.88 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 57.25 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 1:24 PM
Sunset: 8:47 PM
Daylight: 14 hrs 45 mins
Moonrise: 9:56 AM
Moon Transit: 4:32 PM
Moonset: 10:56 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:02 PM - 6:32 PM

Minor Periods

10:26 PM - 11:56 PM
9:26 AM - 10:56 AM

Action Rating: 2 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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