Water Temperature of Maxwell Creek in Saint Helena, CA

Current Water Temperature

57.6°F 14.2°C
Cold Thermal Gear Required
57.6°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

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

Temperature Locations

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Local Points of Interest

Pope Valley, CA

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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)
Carquinez Strait, Crockett, CA (38.8 mi)
Sacramento River, Meridian, CA (39.2 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

51.8°F
Clear
Conditions: Clear
Humidity: 45%
Feels Like: 47.3°F
Wind: SSW 1.1 mph
Wind Gusts: 2.2 mph
Pressure: 29.9 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 26.2 mi
UV Index: 0

Five-Day Weather Forecast

Overcast
Thu
H: 69°F
L: 50°F
Dense Drizzle
Fri
H: 62°F
L: 47°F
Overcast
Sat
H: 61°F
L: 46°F
Moderate Rain Showers
Sun
H: 62°F
L: 50°F
Dense Drizzle
Mon
H: 58°F
L: 49°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
15.7 μg/m³
Moderate
PM10
16.8 μg/m³
Good
Ozone (O3)
67 μg/m³
Photochemical
NO2
6.4 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
165 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 10m daylight
Sunrise 6:49 AM
Solar Noon 11:53 AM
Sunset 4:58 PM
Moon
Waxing Crescent • 6%
Moonrise 10:17 AM
Transit 2:46 PM
Moonset 7:17 PM

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
2:16 PM - 4:46 PM

Minor Periods

9:47 AM - 11:17 AM
6:47 PM - 8:17 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 58.1°F
Average Humidity: 60%
Chance of Rain: 6%
Wind: 10.8 mph
UV Index: 3.6

Air Quality

EPA Index 2 • Moderate
PM2.5
11.6 μg/m³
Good
PM10
14 μg/m³
Good
Ozone (O3)
72.7 μg/m³
Photochemical
NO2
4.8 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
149.7 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 10m daylight
Sunrise 6:49 AM
Solar Noon 11:53 AM
Sunset 4:58 PM
Moon
Waxing Crescent • 6%
Moonrise 10:17 AM
Transit 2:46 PM
Moonset 7:17 PM

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
2:16 PM - 4:46 PM

Minor Periods

9:47 AM - 11:17 AM
6:47 PM - 8:17 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Dense Drizzle
Average Temperature: 53.4°F
Average Humidity: 85%
Chance of Rain: 100%
Wind: 14.5 mph
UV Index: 2.1

Air Quality

EPA Index 2 • Moderate
PM2.5
3.9 μg/m³
Good
PM10
5.8 μg/m³
Good
Ozone (O3)
71.1 μg/m³
Photochemical
NO2
3.1 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
120.8 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 8m daylight
Sunrise 6:50 AM
Solar Noon 11:53 AM
Sunset 4:58 PM
Moon
Waxing Crescent • 13%
Moonrise 11:02 AM
Transit 3:36 PM
Moonset 8:15 PM

Best Times for Fishing or Hunting

Major Periods

2:41 AM - 5:11 AM
3:06 PM - 5:36 PM

Minor Periods

10:32 AM - 12:02 PM
7:45 PM - 9:15 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 52.9°F
Average Humidity: 84%
Chance of Rain: 16%
Wind: 5.5 mph
UV Index: 3.7

Air Quality

EPA Index 1 • Good
PM2.5
4.7 μg/m³
Good
PM10
7 μg/m³
Good
Ozone (O3)
54.2 μg/m³
Photochemical
NO2
4.4 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
127.2 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 6m daylight
Sunrise 6:51 AM
Solar Noon 11:53 AM
Sunset 4:57 PM
Moon
Waxing Crescent • 21%
Moonrise 11:40 AM
Transit 4:25 PM
Moonset 9:15 PM

Best Times for Fishing or Hunting

Major Periods

3:31 AM - 6:01 AM
3:55 PM - 6:25 PM

Minor Periods

11:10 AM - 12:40 PM
8:45 PM - 10:15 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Moderate Rain Showers
Average Temperature: 54.3°F
Average Humidity: 86%
Chance of Rain: 82%
Wind: 10.1 mph
UV Index: 3.3

Air Quality

EPA Index 1 • Good
PM2.5
7 μg/m³
Good
PM10
9.8 μg/m³
Good
Ozone (O3)
57.5 μg/m³
Photochemical
NO2
5.1 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
128.7 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 4m daylight
Sunrise 6:52 AM
Solar Noon 11:54 AM
Sunset 4:56 PM
Moon
Waxing Crescent • 31%
Moonrise 12:13 PM
Transit 5:11 PM
Moonset 10:16 PM

Best Times for Fishing or Hunting

Major Periods

4:18 AM - 6:48 AM
4:41 PM - 7:11 PM

Minor Periods

11:43 AM - 1:13 PM
9:46 PM - 11:16 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Dense Drizzle
Average Temperature: 53.1°F
Average Humidity: 85%
Chance of Rain: 52%
Wind: 2.7 mph
UV Index: 2.3

Air Quality

EPA Index 1 • Good
PM2.5
1.8 μg/m³
Good
PM10
2.1 μg/m³
Good
Ozone (O3)
27.8 μg/m³
Photochemical
NO2
8.2 μg/m³
Nitrogen Dioxide
SO2
0.1 μg/m³
Sulfur Dioxide
CO
161.6 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 2m daylight
Sunrise 6:53 AM
Solar Noon 11:54 AM
Sunset 4:55 PM
Moon
First Quarter • 42%
Moonrise 12:41 PM
Transit 5:55 PM
Moonset 11:18 PM

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
5:25 PM - 7:55 PM

Minor Periods

12:11 PM - 1:41 PM
10:48 PM - 12:18 AM
Action Rating:
Good Action 3/5
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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