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

104.5°F
Sunny
Sunny
104.6°F
106.8°F
16%
SW 12.5 mph
14.4 mph
106°F
44.6°F
0 in
0%
9 mi
1010 mbar
7.8

Five Day Weather Forecast

Sunny
Wed
H: 107°F
L: 73°F
Sunny
Thu
H: 96°F
L: 56°F
Sunny
Fri
H: 93°F
L: 51°F
Sunny
Sat
H: 96°F
L: 49°F
Sunny
Sun
H: 97°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 6.6 μg/m3
PM10: 9.2 μg/m3
Carbon Monoxide: 93 μg/m3
Nitrogen Dioxide: 0.8 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:15 PM
Sunset: 8:33 PM
Daylight: 14 hrs 36 mins
Moonrise: 7:21 AM
Moon Transit: 2:42 PM
Moonset: 9:51 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:12 PM - 4:42 PM

Minor Periods

9:21 PM - 10:51 PM
6:51 AM - 8:21 AM

Action Rating: 3 out of 5

Small Craft Advisory issued July 15 at 2:24AM PDT until July 15 at 9:00PM PDT by NWS San Francisco CA

Effective: Wed July 15, 2026, 2:24 AM
Expires: Wed July 15, 2026, 10:30 AM

* WHAT...Southwest winds 10 to 20 kt and a moderate chop expected. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...From 3 PM this afternoon to 9 PM PDT this evening. * 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 15 at 8:34AM PDT until July 15 at 9:00PM PDT by NWS San Francisco CA

Effective: Wed July 15, 2026, 8:34 AM
Expires: Wed July 15, 2026, 4:45 PM

* WHAT...Southwest winds 10 to 15 kt with gusts to 25 kt and a moderate chop expected. * WHERE...San Pablo Bay, Suisun Bay, the West Delta and the San Francisco Bay north of the Bay Bridge. * WHEN...From 3 PM this afternoon to 9 PM PDT this evening. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Wednesday, July 15, 2026

Weather Forecast

Sunny
106.7°F
72.9°F
90.2°F
17%
0 in
0%
0%
12.8 mph
9.9


Air Quality

AQI: 1 - Good
PM2.5: 6.82 μg/m3
PM10: 8.89 μg/m3
Carbon Monoxide: 98.33 μg/m3
Nitrogen Dioxide: 5.07 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 70.83 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:15 PM
Sunset: 8:33 PM
Daylight: 14 hrs 36 mins
Moonrise: 7:21 AM
Moon Transit: 2:42 PM
Moonset: 9:51 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:12 PM - 4:42 PM

Minor Periods

9:21 PM - 10:51 PM
6:51 AM - 8:21 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
96.3°F
55.8°F
78.3°F
26%
0 in
0%
0%
11.4 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 8.27 μg/m3
PM10: 10.97 μg/m3
Carbon Monoxide: 97.58 μg/m3
Nitrogen Dioxide: 4.59 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 62.63 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:15 PM
Sunset: 8:33 PM
Daylight: 14 hrs 35 mins
Moonrise: 8:37 AM
Moon Transit: 3:35 PM
Moonset: 10:21 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:05 PM - 5:35 PM

Minor Periods

9:51 PM - 11:21 PM
8:07 AM - 9:37 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
92.6°F
50.5°F
70.5°F
42%
0 in
1%
0%
9.8 mph
10.1


Air Quality

AQI: 1 - Good
PM2.5: 10.96 μg/m3
PM10: 14.46 μg/m3
Carbon Monoxide: 102.25 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 0.86 μg/m3
Ozone: 52.83 μg/m3

Astronomical

Sunrise: 5:59 AM
Sun Transit: 1:15 PM
Sunset: 8:32 PM
Daylight: 14 hrs 33 mins
Moonrise: 9:49 AM
Moon Transit: 4:23 PM
Moonset: 10:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:53 PM - 6:23 PM

Minor Periods

10:17 PM - 11:47 PM
9:19 AM - 10:49 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
95.8°F
49.3°F
71.2°F
44%
0 in
1%
0%
10.1 mph
10.3


Air Quality

AQI: 1 - Good
PM2.5: 9.8 μg/m3
PM10: 13.42 μg/m3
Carbon Monoxide: 99.38 μg/m3
Nitrogen Dioxide: 3.29 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 55.58 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:15 PM
Sunset: 8:32 PM
Daylight: 14 hrs 32 mins
Moonrise: 10:57 AM
Moon Transit: 5:08 PM
Moonset: 11:10 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:38 PM - 7:08 PM

Minor Periods

12:00 AM - 12:00 AM
10:27 AM - 11:57 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
96.5°F
51.6°F
72.6°F
41%
0 in
1%
0%
9.6 mph
10.6


Air Quality

AQI: 1 - Good
PM2.5: 9.25 μg/m3
PM10: 12.03 μg/m3
Carbon Monoxide: 113.83 μg/m3
Nitrogen Dioxide: 7.78 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 30.33 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:15 PM
Sunset: 8:31 PM
Daylight: 14 hrs 31 mins
Moonrise: 12:02 AM
Moon Transit: 5:52 PM
Moonset: 12:10 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

12:33 AM - 3:03 AM
5:22 PM - 7:52 PM

Minor Periods

11:32 AM - 1:02 PM
12:00 AM - 12:00 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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