Water Temperature of the Santa Margarita River in Temecula, CA

Current Water Temperature

61.5°F

Measurement Time: Monday, March 16, 2026, 3:00 PM PDT

Temperature Locations

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Local Points of Interest

Santa Margarita Ecological Reserve

Santa Margarita River

Station Name: SANTA MARGARITA R NR TEMECULA CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,001 feet

Nearest Address:
Camino Estribo
Temecula, CA 92590
Riverside County

GPS Coordinates: 33.4739175, -117.1422536

Nearby Water Temperatures

Cahuilla Creek, Anza, CA (26.8 mi)
Pacific Ocean, Oceanside, CA (27.9 mi)
Hamilton Creek, Anza, CA (30.3 mi)
Pacific Ocean, Del Mar, CA (36.6 mi)
Pacific Ocean, Del Mar, CA (40 mi)
Santa Ana River, Corona, CA (40.5 mi)
Pacific Ocean, La Jolla, CA (42.5 mi)
North San Diego Bay, San Diego, CA (52.5 mi)
Pacific Ocean, San Diego, CA (54 mi)
Los Angeles Harbor, Los Angeles, CA (67.2 mi)
Pacific Ocean, Tijuana, MX (68.1 mi)
Mojave River, Victorville, CA (76.6 mi)
Santa Monica Bay, Santa Monica, CA (86.3 mi)
Los Angeles River, Sherman Oaks, CA (89.7 mi)
Los Angeles River, Encino, CA (91.8 mi)

Weather for Temecula, California

Current Weather

78.1°F
Clear
Clear
76.2°F
71.6°F
29%
ENE 2.2 mph
3.8 mph
71.4°F
32.6°F
0 in
0%
9 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 98°F
L: 54°F
Sunny
Tue
H: 99°F
L: 62°F
Sunny
Wed
H: 96°F
L: 66°F
Sunny
Thu
H: 97°F
L: 62°F
Sunny
Fri
H: 95°F
L: 65°F

Air Quality

AQI: 2 - Moderate
PM2.5: 16.15 μg/m3
PM10: 16.65 μg/m3
Carbon Monoxide: 166.85 μg/m3
Nitrogen Dioxide: 34.25 μg/m3
Sulphur Dioxide: 4.95 μg/m3
Ozone: 18 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:57 AM
Sunset: 6:57 PM
Daylight: 12 hrs mins
Moonrise: 5:40 AM
Moon Transit: 11:10 AM
Moonset: 4:48 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

7:19 PM - 9:49 PM
10:40 AM - 1:10 PM

Minor Periods

4:18 PM - 5:48 PM
5:10 AM - 6:40 AM

Action Rating: 4 out of 5

Beach Hazards Statement issued March 16 at 2:26AM PDT until March 18 at 11:00PM PDT by NWS San Diego CA

Effective: Mon March 16, 2026, 2:26 AM
Expires: Mon March 16, 2026, 3:30 PM

* WHAT...Surf of 2 to 4 feet, with sets to 5 feet. * WHERE...San Diego County Coastal Areas and Orange County Coastal Areas. * WHEN...Through Wednesday evening. * IMPACTS...Moderate rip current risk and locally hazardous swimming conditions.

A beach hazards statement is issued when threats such as rip currents and other hazards are possible. Caution should be used when in or near the water.


Heat Advisory issued March 16 at 9:16AM PDT until March 20 at 8:00PM PDT by NWS San Diego CA

Effective: Mon March 16, 2026, 9:16 AM
Expires: Mon March 16, 2026, 10:30 PM

* WHAT...Hot conditions with temperatures 80 to 90 degrees near the coast and 95 to 102, locally up to 105 degrees inland. Overnight lows will be in the 60s. * WHERE...Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Valleys, and Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses. Increased heat impacts due to long-duration early season heat wave. * ADDITIONAL DETAILS...High temperatures this week will be 20 to 30 degrees above normal for this time of year. Record breaking heat is likely. Widespread Moderate to locally Major HeatRisk is expected.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Beach Hazards Statement issued March 16 at 12:19PM PDT until March 18 at 11:00PM PDT by NWS San Diego CA

Effective: Mon March 16, 2026, 12:19 PM
Expires: Mon March 16, 2026, 11:00 PM

* WHAT...Surf of 3 to 5 feet, with sets to 6 feet. * WHERE...San Diego County Coastal Areas and Orange County Coastal Areas. * WHEN...Through Wednesday evening. * IMPACTS...Moderate rip current risk and locally hazardous swimming conditions.

A beach hazards statement is issued when threats such as rip currents and other hazards are possible. Caution should be used when in or near the water.


Extreme Heat Warning issued March 16 at 9:16AM PDT until March 21 at 8:00PM PDT by NWS San Diego CA

Effective: Mon March 16, 2026, 9:16 AM
Expires: Mon March 16, 2026, 10:30 PM

* WHAT...Dangerously hot conditions with temperatures 104 to 112 degrees expected, high temperatures locally up to 114 possible Thursday/Friday. Low temperatures will be in the low to mid-70s. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...From 10 AM Wednesday to 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...High temperatures this week will be 20 to 30 degrees above normal for this time of year. Record breaking heat is likely. Widespread Major HeatRisk expected.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Heat Advisory issued March 16 at 9:16AM PDT until March 20 at 8:00PM PDT by NWS San Diego CA

Effective: Mon March 16, 2026, 9:16 AM
Expires: Mon March 16, 2026, 10:30 PM

* WHAT...High temperatures in the lower to mid 90s below 4500 feet and in the 80s from 4500 to 6500 feet possible. Overnight low temperatures will be in the low to mid-60s. * WHERE...Riverside County Mountains, San Bernardino County Mountains, and San Diego County Mountains. * WHEN...From 10 AM Wednesday to 8 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...High temperatures this week will be 20 to 30 degrees above normal for this time of year. Record breaking heat is likely. Widespread Moderate HeatRisk expected.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.


Monday, March 16, 2026

Weather Forecast

Sunny
98.2°F
53.6°F
73.8°F
38%
0 in
0%
0%
6 mph
1.7


Air Quality

AQI: 2 - Moderate
PM2.5: 17.92 μg/m3
PM10: 19.65 μg/m3
Carbon Monoxide: 220.53 μg/m3
Nitrogen Dioxide: 37.73 μg/m3
Sulphur Dioxide: 7.93 μg/m3
Ozone: 58.88 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:57 AM
Sunset: 6:57 PM
Daylight: 12 hrs mins
Moonrise: 5:40 AM
Moon Transit: 11:10 AM
Moonset: 4:48 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

7:19 PM - 9:49 PM
10:40 AM - 1:10 PM

Minor Periods

4:18 PM - 5:48 PM
5:10 AM - 6:40 AM

Action Rating: 4 out of 5

Tuesday, March 17, 2026

Weather Forecast

Sunny
99.3°F
61.9°F
77.6°F
31%
0 in
0%
0%
9.2 mph
1.8


Air Quality

AQI: 2 - Moderate
PM2.5: 15.74 μg/m3
PM10: 16.44 μg/m3
Carbon Monoxide: 209.57 μg/m3
Nitrogen Dioxide: 38.56 μg/m3
Sulphur Dioxide: 8.75 μg/m3
Ozone: 55.4 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 12:56 AM
Sunset: 6:58 PM
Daylight: 12 hrs 2 mins
Moonrise: 6:10 AM
Moon Transit: 11:56 AM
Moonset: 5:52 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

8:05 PM - 10:35 PM
11:26 AM - 1:56 PM

Minor Periods

5:22 PM - 6:52 PM
5:40 AM - 7:10 AM

Action Rating: 5 out of 5

Wednesday, March 18, 2026

Weather Forecast

Sunny
96.3°F
65.5°F
76.7°F
40%
0 in
0%
0%
9.6 mph
1.8


Air Quality

AQI: 2 - Moderate
PM2.5: 17.52 μg/m3
PM10: 18.36 μg/m3
Carbon Monoxide: 216.97 μg/m3
Nitrogen Dioxide: 34.09 μg/m3
Sulphur Dioxide: 10.18 μg/m3
Ozone: 66.96 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 12:56 AM
Sunset: 6:59 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:38 AM
Moon Transit: 12:42 AM
Moonset: 6:57 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

6:27 PM - 7:57 PM
6:08 AM - 7:38 AM

Action Rating: 3 out of 5

Thursday, March 19, 2026

Weather Forecast

Sunny
96.6°F
62.1°F
75.6°F
41%
0 in
0%
0%
7.8 mph
1.9


Air Quality

AQI: 2 - Moderate
PM2.5: 25.02 μg/m3
PM10: 26.25 μg/m3
Carbon Monoxide: 225.02 μg/m3
Nitrogen Dioxide: 29.93 μg/m3
Sulphur Dioxide: 12.11 μg/m3
Ozone: 87.4 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 12:00 AM
Sunset: 7:00 PM
Daylight: 12 hrs 6 mins
Moonrise: 7:06 AM
Moon Transit: 1:30 PM
Moonset: 8:04 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:00 PM - 3:30 PM

Minor Periods

7:34 PM - 9:04 PM
6:36 AM - 8:06 AM

Action Rating: 4 out of 5

Friday, March 20, 2026

Weather Forecast

Sunny
95.4°F
65.1°F
76.7°F
35%
0 in
0%
0%
10.3 mph
2


Air Quality

AQI: 2 - Moderate
PM2.5: 31.18 μg/m3
PM10: 31.79 μg/m3
Carbon Monoxide: 454.75 μg/m3
Nitrogen Dioxide: 53.61 μg/m3
Sulphur Dioxide: 16.11 μg/m3
Ozone: 74.31 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 7:27 AM
Sunset: 7:00 PM
Daylight: 12 hrs 8 mins
Moonrise: 7:37 AM
Moon Transit: 2:19 PM
Moonset: 9:13 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:49 PM - 4:19 PM

Minor Periods

8:43 PM - 10:13 PM
7:07 AM - 8:37 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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