Water Temperature of Trinity River in Helena, CA

Current Water Temperature

46.6°F

Measurement Time: Sunday, November 23, 2025, 1:45 AM PST

Temperature Locations

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Local Points of Interest

Junction City, CA; Shasta Trinity National Forest

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Trinity River

Station Name: TRINITY R AB NF TRINITY R NR HELENA CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,404 feet / 428 meters

Nearest Address:
State Rte 299
Helena, CA 96052
Trinity County

GPS Coordinates: 40.76653148, -123.1144757

Nearby Water Temperatures

Trinity River, Douglas City, CA (11.8 mi)
Trinity River, Lewiston, CA (16.7 mi)
Trinity River, Hoopa, CA (35.2 mi)
Klamath River, Orleans, CA (43.1 mi)
Humboldt Bay, Eureka, CA (57.7 mi)
Pacific Ocean, Manila, CA (65.6 mi)
Klamath River, Klamath, CA (68.3 mi)
Pacific Ocean, Eureka, CA (73.9 mi)
Mill Creek, Los Milinos, CA (75.6 mi)
Elder Creek, Branscomb, CA (76.9 mi)
Deer Creek, Vina, CA (80.4 mi)
Crescent Harbor, Crescent City, CA (87.5 mi)
Hat Creek, Old Station, CA (88.7 mi)
Pacific Ocean, Petrolia, CA (91.0 mi)
Butte Creek, Chico, CA (103.3 mi)

Weather for Helena, California

Current Weather

39.9°F
Fog
Conditions: Fog
Humidity: 100%
Feels Like: 39.3°F
Wind: W 2.2 mph
Wind Gusts: 6.7 mph
Pressure: 30.18 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 0 mi
UV Index: 1.2

Five Day Weather Forecast

Sunny
Sun
H: 56°F
L: 37°F
Partly Cloudy
Mon
H: 50°F
L: 36°F
Partly Cloudy
Tue
H: 57°F
L: 36°F
Sunny
Wed
H: 62°F
L: 38°F
Partly Cloudy
Thu
H: 58°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 4.95 μg/m3
PM10: 5.75 μg/m3
Carbon Monoxide: 170.85 μg/m3
Nitrogen Dioxide: 4.35 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:00 AM
Sunset: 4:49 PM
Daylight: 9 hrs 40 mins
Moonrise: 10:33 AM
Moon Transit: 2:54 PM
Moonset: 7:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:24 PM - 4:54 PM

Minor Periods

6:48 PM - 8:18 PM
10:03 AM - 11:33 AM

Action Rating: 3 out of 5

Frost Advisory issued November 22 at 8:06PM PST until November 23 at 9:00AM PST by NWS Eureka CA

Effective: Sat November 22, 2025, 8:06 PM
Expires: Sun November 23, 2025, 4:15 AM

* WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Trinity County, Northern Mendocino Interior, and Southern Humboldt Interior. * WHEN...From 2 AM to 9 AM PST Sunday. * 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.


Frost Advisory issued November 23 at 1:56AM PST until November 23 at 9:00AM PST by NWS Eureka CA

Effective: Sun November 23, 2025, 1:56 AM
Expires: Sun November 23, 2025, 9:00 AM

* WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Northern Mendocino Interior, Southern Humboldt Interior, and Southern Trinity. * WHEN...Until 9 AM PST this morning. * 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 22 at 10:43PM PST until November 23 at 10:00PM PST by NWS Eureka CA

Effective: Sat November 22, 2025, 10:43 PM
Expires: Sun November 23, 2025, 6:45 AM

* WHAT...Increased threat of sneaker waves expected. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Through Sunday evening. * 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.
Sunday, November 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 46.5°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 4.9 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 3.47 μg/m3
PM10: 3.72 μg/m3
Carbon Monoxide: 185.29 μg/m3
Nitrogen Dioxide: 5.21 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 65.96 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:00 AM
Sunset: 4:49 PM
Daylight: 9 hrs 40 mins
Moonrise: 10:33 AM
Moon Transit: 2:54 PM
Moonset: 7:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:24 PM - 4:54 PM

Minor Periods

6:48 PM - 8:18 PM
10:03 AM - 11:33 AM

Action Rating: 3 out of 5

Monday, November 24, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 42.6°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 4.3 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 5.62 μg/m3
PM10: 6.49 μg/m3
Carbon Monoxide: 135.09 μg/m3
Nitrogen Dioxide: 4.03 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 62.36 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:00 AM
Sunset: 4:48 PM
Daylight: 9 hrs 38 mins
Moonrise: 11:14 AM
Moon Transit: 3:44 PM
Moonset: 8:21 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

7:51 PM - 9:21 PM
10:44 AM - 12:14 AM

Action Rating: 2 out of 5

Tuesday, November 25, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 43.8°F
Average Humidity: 46%
Chance of Rain: 0%
Wind: 3.4 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 2.1 μg/m3
PM10: 2.75 μg/m3
Carbon Monoxide: 152.29 μg/m3
Nitrogen Dioxide: 4.28 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 68.72 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:00 AM
Sunset: 4:48 PM
Daylight: 9 hrs 37 mins
Moonrise: 11:48 AM
Moon Transit: 4:34 PM
Moonset: 9:27 PM
Moon Phase: Waxing Crescent
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:04 PM - 6:34 PM

Minor Periods

8:57 PM - 10:27 PM
11:18 AM - 12:48 AM

Action Rating: 2 out of 5

Wednesday, November 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 45.8°F
Average Humidity: 47%
Chance of Rain: 0%
Wind: 2.9 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 2.61 μg/m3
PM10: 3.22 μg/m3
Carbon Monoxide: 155.13 μg/m3
Nitrogen Dioxide: 4.88 μg/m3
Sulphur Dioxide: 1.86 μg/m3
Ozone: 72.4 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:00 AM
Sunset: 4:47 PM
Daylight: 9 hrs 35 mins
Moonrise: 12:17 AM
Moon Transit: 5:21 PM
Moonset: 10:35 PM
Moon Phase: First Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:51 PM - 7:21 PM

Minor Periods

10:05 PM - 11:35 PM
11:47 AM - 1:17 PM

Action Rating: 3 out of 5

Thursday, November 27, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 45.4°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 3.6 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 3.53 μg/m3
PM10: 3.83 μg/m3
Carbon Monoxide: 164.54 μg/m3
Nitrogen Dioxide: 6.6 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 64.08 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 12:00 AM
Sunset: 4:47 PM
Daylight: 9 hrs 34 mins
Moonrise: 12:42 AM
Moon Transit: 6:06 PM
Moonset: 11:42 PM
Moon Phase: First Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

12:40 AM - 3:10 AM
5:36 PM - 8:06 PM

Minor Periods

12:00 AM - 12:00 AM
12:12 AM - 1:42 PM

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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