Water Temperature of Maxwell Creek in Saint Helena, CA

Current Water Temperature

57.6°F

Measurement Time: Wednesday, March 30, 2022, 6:00 AM PDT

Temperature Locations

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Local Points of Interest

Pope Valley, CA

Maxwell Creek

Station Name: MAXWELL C NR POPE VALLEY CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 551 feet

Nearest Address:
2458 Dollarhide Rd
Saint Helena, CA 94574
Napa County

GPS Coordinates: 38.61460278, -122.3459917

Nearby Water Temperatures

Pope Creek, Saint Helena, CA (2.5 mi)
Russian River, Jimtown, CA (26.3 mi)
Russian River, Healdsburg, CA (27.5 mi)
Mark West Creek, Forestville, CA (28.6 mi)
Cache Creek, Yolo, CA (30.1 mi)
Dry Creek, Healdsburg, CA (31.5 mi)
Russian River, Forestville, CA (32.3 mi)
Sacramento River, Meridian, CA (39.2 mi)
Carquinez Strait, Martinez, CA (41.8 mi)
Suisun Bay, Concord, CA (42 mi)
Russian River, Hopland, CA (42.3 mi)
Sacramento River Deep Water Ship Chennel, Rio Vista, CA (44.7 mi)
San Francisco Bay, San Rafael, CA (47.2 mi)
San Francisco Bay, Richmond, CA (47.5 mi)
Russian River, Hopland, CA (50.9 mi)

Weather for Saint Helena, California

Current Weather

88.5°F
Sunny
Sunny
85°F
100.5°F
32%
SSW 11 mph
12.6 mph
100.8°F
55.6°F
0 in
0%
10 mi
995 mbar
5.3

Five Day Weather Forecast

Sunny
Wed
H: 102°F
L: 67°F
Sunny
Thu
H: 100°F
L: 55°F
Sunny
Fri
H: 103°F
L: 58°F
Sunny
Sat
H: 106°F
L: 58°F
Sunny
Sun
H: 107°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 9.5 μg/m3
Carbon Monoxide: 95 μg/m3
Nitrogen Dioxide: 0.8 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 81 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:15 PM
Sunset: 8:23 PM
Daylight: 14 hrs 14 mins
Moonrise: 8:45 PM
Moon Transit: 1:05 AM
Moonset: 6:03 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
8:32 AM - 11:02 AM

Minor Periods

8:15 PM - 9:45 PM
5:33 AM - 7:03 AM

Action Rating: 4 out of 5

Small Craft Advisory issued July 29 at 8:28AM PDT until July 31 at 3:00PM PDT by NWS San Francisco CA

Effective: Wed July 29, 2026, 8:28 AM
Expires: Wed July 29, 2026, 4:30 PM

* WHAT...Northwest winds 15 to 25 kt with occasional gusts up to 35 kt. * WHERE...Coastal Waters from Point Arena to Point Reyes California out to 10 NM. * WHEN...Until 3 PM PDT Friday. * IMPACTS...Conditions will be hazardous to small craft.

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


Small Craft Advisory issued July 29 at 2:00AM PDT until July 31 at 3:00PM PDT by NWS San Francisco CA

Effective: Wed July 29, 2026, 2:00 AM
Expires: Wed July 29, 2026, 10:00 AM

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt. * WHERE...Coastal Waters from Point Arena to Point Reyes California out to 10 NM. * WHEN...Until 3 PM PDT Friday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Wednesday, July 29, 2026

Weather Forecast

Sunny
102.4°F
67.1°F
84.6°F
34%
0 in
1%
0%
11 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 7.74 μg/m3
PM10: 9.86 μg/m3
Carbon Monoxide: 102.5 μg/m3
Nitrogen Dioxide: 8.13 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 46.67 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:15 PM
Sunset: 8:23 PM
Daylight: 14 hrs 14 mins
Moonrise: 8:45 PM
Moon Transit: 1:05 AM
Moonset: 6:03 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
8:32 AM - 11:02 AM

Minor Periods

8:15 PM - 9:45 PM
5:33 AM - 7:03 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
99.5°F
54.6°F
78.2°F
33%
0 in
0%
0%
10.1 mph
10.3


Air Quality

AQI: 1 - Good
PM2.5: 8.89 μg/m3
PM10: 11.75 μg/m3
Carbon Monoxide: 102.96 μg/m3
Nitrogen Dioxide: 7.56 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 56.13 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:15 PM
Sunset: 8:22 PM
Daylight: 14 hrs 12 mins
Moonrise: 9:11 PM
Moon Transit: 1:52 AM
Moonset: 7:07 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:22 AM - 3:52 AM
9:17 AM - 11:47 AM

Minor Periods

8:41 PM - 10:11 PM
6:37 AM - 8:07 AM

Action Rating: 5 out of 5

Friday, July 31, 2026

Weather Forecast

Sunny
102.9°F
57.8°F
78.6°F
30%
0 in
0%
0%
9.8 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 9.34 μg/m3
PM10: 12.36 μg/m3
Carbon Monoxide: 102.71 μg/m3
Nitrogen Dioxide: 7.91 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 45.25 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:15 PM
Sunset: 8:21 PM
Daylight: 14 hrs 10 mins
Moonrise: 9:35 PM
Moon Transit: 2:36 AM
Moonset: 8:11 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

2:06 AM - 4:36 AM
10:01 AM - 12:31 AM

Minor Periods

9:05 PM - 10:35 PM
7:41 AM - 9:11 AM

Action Rating: 3 out of 5

Saturday, August 1, 2026

Weather Forecast

Sunny
106.3°F
58.4°F
80.6°F
33%
0 in
0%
0%
9.4 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 8.43 μg/m3
PM10: 10.73 μg/m3
Carbon Monoxide: 103.9 μg/m3
Nitrogen Dioxide: 7.51 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 47.79 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:15 PM
Sunset: 8:20 PM
Daylight: 14 hrs 9 mins
Moonrise: 9:58 PM
Moon Transit: 3:19 AM
Moonset: 9:14 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

2:49 AM - 5:19 AM
10:44 AM - 1:14 PM

Minor Periods

9:28 PM - 10:58 PM
8:44 AM - 10:14 AM

Action Rating: 2 out of 5

Sunday, August 2, 2026

Weather Forecast

Sunny
106.9°F
60.9°F
81.8°F
36%
0 in
0%
0%
10.3 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 9.87 μg/m3
PM10: 11.87 μg/m3
Carbon Monoxide: 145.83 μg/m3
Nitrogen Dioxide: 18.92 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 12.83 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 1:15 PM
Sunset: 8:19 PM
Daylight: 14 hrs 7 mins
Moonrise: 10:21 PM
Moon Transit: 3:50 PM
Moonset: 10:18 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.9%

Best Times for Fishing or Hunting

Major Periods

11:27 AM - 1:57 PM
3:20 PM - 5:50 PM

Minor Periods

9:51 PM - 11:21 PM
9:48 AM - 11:18 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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