Water Temperature of Trinity River in Helena, CA

Current Water Temperature

52.3°F

Measurement Time: Tuesday, March 31, 2026, 11:45 AM PDT

Temperature Locations

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Local Points of Interest

Junction City, CA; Shasta Trinity National Forest

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

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 mi)
Butte Creek, Chico, CA (103.3 mi)

Weather for Helena, California

Current Weather

53.4°F
Sunny
Sunny
52.8°F
53.4°F
64%
NW 2.2 mph
2.3 mph
52.8°F
42.1°F
0 in
0%
6 mi
1009 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 58°F
L: 46°F
Moderate rain
Wed
H: 47°F
L: 28°F
Moderate rain
Thu
H: 40°F
L: 30°F
Sunny
Fri
H: 64°F
L: 20°F
Sunny
Sat
H: 76°F
L: 35°F

Air Quality

AQI: 1 - Good
PM2.5: 4.85 μg/m3
PM10: 6.15 μg/m3
Carbon Monoxide: 158.85 μg/m3
Nitrogen Dioxide: 3.75 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 58 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:16 PM
Sunset: 7:36 PM
Daylight: 12 hrs 39 mins
Moonrise: 6:35 PM
Moon Transit: 12:00 AM
Moonset: 6:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:15 AM - 9:45 AM

Minor Periods

6:05 PM - 7:35 PM
5:43 AM - 7:13 AM

Action Rating: 5 out of 5

Winter Weather Advisory issued March 31 at 3:13AM PDT until April 2 at 11:00AM PDT by NWS Eureka CA

Effective: Tue March 31, 2026, 3:13 AM
Expires: Tue March 31, 2026, 3:15 PM

* WHAT...Snow expected. Total snow accumulations between 4 to 7 inches. Winds gusting as high as 35 mph. * WHERE...Northern Trinity. * WHEN...From 8 PM Wednesday to 11 AM PDT Thursday. * IMPACTS...Highway 3 at Scott Mountain Pass will likely become slick and hazardous. Plan on slippery road conditions. * ADDITIONAL DETAILS...Lighter snow accumulations up to 1 inch will be possible as low as 2500 feet Thursday morning.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Winter Weather Advisory issued March 31 at 1:11PM PDT until April 2 at 11:00AM PDT by NWS Eureka CA

Effective: Tue March 31, 2026, 1:11 PM
Expires: Wed April 1, 2026, 12:00 AM

* WHAT...Snow expected. Total snow accumulations between 4 to 6 inches. Winds gusting as high as 35 mph. * WHERE...Northern Trinity. * WHEN...From 8 PM Wednesday to 11 AM PDT Thursday. * IMPACTS...Highway 3 at Scott Mountain Pass will likely become slick and hazardous. Plan on slippery road conditions. * ADDITIONAL DETAILS...Lighter snow accumulations up to 1 inch will be possible as low as 2500 feet Thursday morning.

Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.
Tuesday, March 31, 2026

Weather Forecast

Patchy rain nearby
57.9°F
46°F
51.9°F
58%
0.01 in
72%
0%
7.2 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 6.19 μg/m3
PM10: 8.13 μg/m3
Carbon Monoxide: 162.53 μg/m3
Nitrogen Dioxide: 3.45 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 80.08 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:16 PM
Sunset: 7:36 PM
Daylight: 12 hrs 39 mins
Moonrise: 6:35 PM
Moon Transit: 12:00 AM
Moonset: 6:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:15 AM - 9:45 AM

Minor Periods

6:05 PM - 7:35 PM
5:43 AM - 7:13 AM

Action Rating: 5 out of 5

Wednesday, April 1, 2026

Weather Forecast

Moderate rain
46.9°F
27.9°F
43.8°F
88%
0.7 in
84%
4%
6.7 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.71 μg/m3
PM10: 4.87 μg/m3
Carbon Monoxide: 133.69 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 70.88 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:16 PM
Sunset: 7:37 PM
Daylight: 12 hrs 42 mins
Moonrise: 7:39 PM
Moon Transit: 12:39 AM
Moonset: 6:34 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:09 AM - 2:39 AM
7:58 AM - 10:28 AM

Minor Periods

7:09 PM - 8:39 PM
6:04 AM - 7:34 AM

Action Rating: 4 out of 5

Thursday, April 2, 2026

Weather Forecast

Moderate rain
40.3°F
30.1°F
35.5°F
90%
0.56 in
79%
6%
5.4 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 1.59 μg/m3
PM10: 2.07 μg/m3
Carbon Monoxide: 149.13 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 89.32 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:15 PM
Sunset: 7:38 PM
Daylight: 12 hrs 44 mins
Moonrise: 8:44 PM
Moon Transit: 1:22 AM
Moonset: 6:55 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:52 AM - 3:22 AM
8:40 AM - 11:10 AM

Minor Periods

8:14 PM - 9:44 PM
6:25 AM - 7:55 AM

Action Rating: 4 out of 5

Friday, April 3, 2026

Weather Forecast

Sunny
64.4°F
20.3°F
41.4°F
67%
0 in
0%
0%
4.7 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 2.73 μg/m3
PM10: 3.78 μg/m3
Carbon Monoxide: 155.81 μg/m3
Nitrogen Dioxide: 3.09 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 86.16 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:15 PM
Sunset: 7:39 PM
Daylight: 12 hrs 47 mins
Moonrise: 9:49 PM
Moon Transit: 2:05 AM
Moonset: 7:17 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:35 AM - 4:05 AM
9:24 AM - 11:54 AM

Minor Periods

9:19 PM - 10:49 PM
6:47 AM - 8:17 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Sunny
76.4°F
35.1°F
53.3°F
55%
0 in
0%
0%
3.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.33 μg/m3
PM10: 3.1 μg/m3
Carbon Monoxide: 168.47 μg/m3
Nitrogen Dioxide: 5.94 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 69.69 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:15 PM
Sunset: 7:40 PM
Daylight: 12 hrs 50 mins
Moonrise: 10:54 PM
Moon Transit: 2:49 AM
Moonset: 7:43 AM
Moon Phase: Full
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
10:09 AM - 12:39 AM

Minor Periods

10:24 PM - 11:54 PM
7:13 AM - 8:43 AM

Action Rating: 4 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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