Water Temperature of Humboldt Bay in Eureka, CA

Current Water Temperature

54.5°F

Measurement Time: Tuesday, August 5, 2025, 1:06 PM PDT

Today's Tides

 Low: August 5, 4:07 AM, 0.26 ft
High: August 5, 11:20 AM, 4.70 ft
 Low: August 5, 3:23 PM, 3.81 ft
High: August 5, 9:28 PM, 6.80 ft

Temperature Locations

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Local Points of Interest

Samoa Dunes Recreational Area; Mike Thompson Wildlife Area; South Bay; Rosewood, CA; Elk River, CA

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Humboldt Bay

Station Name: North Spit
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 0 feet / 0 meters

Sensor Depth: -3.8 feet / -1.2 meters

Nearest Address:
New Navy Base Rd
Eureka, CA 95521
Humboldt County

GPS Coordinates: 40.76630, -124.21720

Nearby Water Temperatures

Pacific Ocean, Manila, CA (11.6 mi)
Pacific Ocean, Eureka, CA (16.3 mi)
Trinity River, Hoopa, CA (34.5 mi)
Pacific Ocean, Petrolia, CA (42.3 mi)
Klamath River, Orleans, CA (51.4 mi)
Klamath River, Klamath, CA (52.9 mi)
Trinity River, Helena, CA (57.7 mi)
Trinity River, Douglas City, CA (66.5 mi)
Crescent Harbor, Crescent City, CA (67.7 mi)
Trinity River, Lewiston, CA (74.2 mi)
Elder Creek, Branscomb, CA (77.7 mi)
East Fork Russian River, Ukiah, CA (119.7 mi)
Mill Creek, Los Milinos, CA (125.4 mi)
Deer Creek, Vina, CA (130.2 mi)
Arena Cove, Point Arena, CA (130.7 mi)

Weather for Eureka, California

Current Weather

62.1°F
Partly Cloudy
Conditions: Partly Cloudy
Humidity: 75%
Feels Like: 62.1°F
Wind: NNW 8.1 mph
Wind Gusts: 9.3 mph
Pressure: 30.13 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 8.6

Five Day Weather Forecast

Partly Cloudy
Tue
H: 62°F
L: 53°F
Cloudy
Wed
H: 62°F
L: 55°F
Fog
Thu
H: 61°F
L: 56°F
Partly Cloudy
Fri
H: 67°F
L: 55°F
Sunny
Sat
H: 69°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 12.4 μg/m3
PM10: 16.84 μg/m3
Carbon Monoxide: 240.5 μg/m3
Nitrogen Dioxide: 12.03 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:22 PM
Sunset: 8:28 PM
Daylight: 14 hrs 10 mins
Moonrise: 6:29 PM
Moon Transit: 10:46 PM
Moonset: 2:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

5:05 AM - 7:35 AM
12:00 AM - 12:00 AM

Minor Periods

5:59 PM - 7:29 PM
1:39 AM - 3:09 AM

Action Rating: 2 out of 5

Tuesday, August 5, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 56.9°F
Average Humidity: 92%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 2.2

Air Quality

AQI: 2 - Moderate
PM2.5: 15.75 μg/m3
PM10: 22.19 μg/m3
Carbon Monoxide: 228.59 μg/m3
Nitrogen Dioxide: 8.32 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 52.88 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:22 PM
Sunset: 8:28 PM
Daylight: 14 hrs 10 mins
Moonrise: 6:29 PM
Moon Transit: 10:46 PM
Moonset: 2:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

5:05 AM - 7:35 AM
12:00 AM - 12:00 AM

Minor Periods

5:59 PM - 7:29 PM
1:39 AM - 3:09 AM

Action Rating: 2 out of 5

Wednesday, August 6, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 58.8°F
Average Humidity: 94%
Chance of Rain: 0%
Wind: 10.3 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 12.04 μg/m3
PM10: 16.65 μg/m3
Carbon Monoxide: 212.9 μg/m3
Nitrogen Dioxide: 9.38 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 45.48 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 1:22 PM
Sunset: 8:26 PM
Daylight: 14 hrs 7 mins
Moonrise: 7:16 PM
Moon Transit: 11:41 PM
Moonset: 3:06 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.4%

Best Times for Fishing or Hunting

Major Periods

6:00 AM - 8:30 AM
12:00 AM - 12:00 AM

Minor Periods

6:46 PM - 8:16 PM
2:36 AM - 4:06 AM

Action Rating: 4 out of 5

Thursday, August 7, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 58.8°F
Average Humidity: 96%
Chance of Rain: 0%
Wind: 13.4 mph
UV Index: 2

Air Quality

AQI: 1 - Good
PM2.5: 8.64 μg/m3
PM10: 11.92 μg/m3
Carbon Monoxide: 170.87 μg/m3
Nitrogen Dioxide: 8.11 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 33.92 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 1:22 PM
Sunset: 8:25 PM
Daylight: 14 hrs 5 mins
Moonrise: 7:55 PM
Moon Transit: 12:00 AM
Moonset: 4:12 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:54 AM - 9:24 AM

Minor Periods

7:25 PM - 8:55 PM
3:42 AM - 5:12 AM

Action Rating: 2 out of 5

Friday, August 8, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 59.8°F
Average Humidity: 82%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 11 μg/m3
PM10: 15.09 μg/m3
Carbon Monoxide: 203.87 μg/m3
Nitrogen Dioxide: 8.58 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 58.76 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:22 PM
Sunset: 8:24 PM
Daylight: 14 hrs 3 mins
Moonrise: 8:28 PM
Moon Transit: 12:35 AM
Moonset: 5:22 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
7:47 AM - 10:17 AM

Minor Periods

7:58 PM - 9:28 PM
4:52 AM - 6:22 AM

Action Rating: 5 out of 5

Saturday, August 9, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 62.3°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 5.4 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 12.1 μg/m3
PM10: 15.48 μg/m3
Carbon Monoxide: 315.35 μg/m3
Nitrogen Dioxide: 17.85 μg/m3
Sulphur Dioxide: 0.85 μg/m3
Ozone: 54 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 1:22 PM
Sunset: 8:23 PM
Daylight: 14 hrs 1 mins
Moonrise: 8:55 PM
Moon Transit: 1:26 AM
Moonset: 6:35 AM
Moon Phase: Full
Moon Illumination: 99.0%

Best Times for Fishing or Hunting

Major Periods

12:56 AM - 3:26 AM
8:38 AM - 11:08 AM

Minor Periods

8:25 PM - 9:55 PM
6:05 AM - 7:35 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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