Current Lake Conditions

Real-time water, weather, and fishing conditions for Lake Nacimiento, Lake San Antonio, Lopez Lake, and Santa Margarita Lake.

Get up-to-date lake conditions before you head out. RGS Fishing Guide Service tracks current water levels, temperatures, wind, ramp access, and fishing activity across the Central Coast.

Lake Nacimiento

SLO County / Monterey County

Air Temp

72°F

Estimated Water Temp

86°F

Daily mean (modeled)

Wind

4 mph SE

Barometer

29.23 inHg

Reservoir Elevation

761.5 ft

Capacity

66%

Lake Naciemiento

11:07 am, Jul 14, 2026

70°F

Humidity: 69 %

Pressure: 1022 mb

Wind: 11 mph

Wind Gust: 13 mph

Clouds: 50%

Visibility: 6 mi

Sunrise: 4:59 am

Sunset: 9:12 pm

• Temperature
• Precipitation
• Rain Chance
• Wind
• Humidity
• Pressure

12:00 pm

85°/89°°F 0 mm 1% 10 mph 29% 1019 mb 0 cm

3:00 pm

88°/89°°F 0 mm 1% 12 mph 26% 1018 mb 0 cm

6:00 pm

82°/86°°F 0 mm 1% 12 mph 34% 1019 mb 0 cm

9:00 pm

72°/79°°F 0 mm 1% 12 mph 46% 1021 mb 0 cm

12:00 am

66°/70°°F 0 mm 4% 10 mph 61% 1021 mb 0 cm

3:00 am

64°/65°°F 0 mm 7% 9 mph 74% 1021 mb 0 cm

6:00 am

65°/71°°F 0 mm 6% 9 mph 67% 1021 mb 0 cm

9:00 am

76°/83°°F 0 mm 2% 11 mph 42% 1021 mb 0 cm

Lake San Antonio

SLO County / Monterey County

Air Temp

71°F

Estimated Water Temp

85°F

Daily mean (modeled)

Wind

1 mph SSW

Barometer

28.80 inHg

Reservoir Elevation

747.4 ft

Capacity

71%

Lake San Antonio

3:07 am, Jul 14, 2026

69°F

Clear

Humidity: 47 %

Pressure: 1017 hPa

Wind: 2 mph

Wind Gust: 7 mph

Clouds: 0%

Visibility: 10 mi

Sunrise: 5:58 am

Sunset: 8:20 pm

• Temperature
• Precipitation
• Rain Chance
• Wind
• Humidity
• Pressure

4:00 am

69°/71°°F 0 mm 2% 1 mph 51% 1014 hPa 0 cm

7:00 am

72°/83°°F 0 mm 1% 2 mph 44% 1015 hPa 0 cm

10:00 am

87°/100°°F 0 mm 0% 3 mph 29% 1014 hPa 0 cm

1:00 pm

103°/105°°F 0 mm 0% 7 mph 22% 1012 hPa 0 cm

4:00 pm

95°/100°°F 0 mm 1% 11 mph 21% 1011 hPa 0 cm

7:00 pm

76°/92°°F 0 mm 1% 6 mph 26% 1012 hPa 0 cm

12:00 am

68°/71°°F 0 mm 1% 4 mph 30% 1013 hPa 0 cm

3:00 am

66°/68°°F 0 mm 1% 4 mph 33% 1013 hPa 0 cm

Lake Lopez

Arroyo Grande / SLO County

Air Temp

64°F

Estimated Water Temp

71°F

Daily mean (modeled)

Wind

7 mph WSW

Barometer

29.00 inHg

Reservoir Elevation

Loading…

Capacity

Loading…

Lake Lopez

3:07 am, Jul 14, 2026

63°F

Clear

Humidity: 75 %

Pressure: 1015 hPa

Wind: 2 mph

Wind Gust: 2 mph

Clouds: 0%

Visibility: 10 mi

Sunrise: 5:58 am

Sunset: 8:17 pm

• Temperature
• Precipitation
• Rain Chance
• Wind
• Humidity
• Pressure

4:00 am

63°/63°°F 0 mm 4% 1 mph 65% 1014 hPa 0 cm

7:00 am

64°/75°°F 0 mm 5% 2 mph 67% 1015 hPa 0 cm

10:00 am

81°/88°°F 0 mm 1% 6 mph 48% 1014 hPa 0 cm

1:00 pm

84°/84°°F 0 mm 2% 9 mph 51% 1014 hPa 0 cm

4:00 pm

80°/88°°F 0 mm 1% 7 mph 36% 1013 hPa 0 cm

7:00 pm

65°/77°°F 0 mm 3% 3 mph 55% 1014 hPa 0 cm

12:00 am

65°/66°°F 0 mm 3% 1 mph 53% 1014 hPa 0 cm

3:00 am

67°/67°°F 0 mm 1% 4 mph 44% 1013 hPa 0 cm

Santa Margarita Lake

Central Coast

Air Temp

69°F

Estimated Water Temp

76°F

Daily mean (modeled)

Wind

7 mph NE

Barometer

27.99 inHg

Reservoir Elevation

Loading…

Capacity

Loading…

Santa Margarita Lake

3:07 am, Jul 14, 2026

72°F

Clear

Humidity: 45 %

Pressure: 1014 hPa

Wind: 2 mph

Wind Gust: 7 mph

Clouds: 0%

Visibility: 6 mi

Sunrise: 5:57 am

Sunset: 8:17 pm

• Temperature
• Precipitation
• Rain Chance
• Wind
• Humidity
• Pressure

4:00 am

71°/71°°F 0 mm 1% 1 mph 44% 1014 hPa 0 cm

7:00 am

73°/86°°F 0 mm 1% 2 mph 39% 1015 hPa 0 cm

10:00 am

89°/98°°F 0 mm 0% 4 mph 28% 1014 hPa 0 cm

1:00 pm

100°/101°°F 0 mm 0% 9 mph 23% 1013 hPa 0 cm

4:00 pm

87°/94°°F 0 mm 1% 11 mph 24% 1012 hPa 0 cm

7:00 pm

75°/83°°F 0 mm 1% 6 mph 38% 1013 hPa 0 cm

12:00 am

73°/73°°F 0 mm 1% 1 mph 39% 1013 hPa 0 cm

3:00 am

72°/73°°F 0 mm 1% 2 mph 33% 1013 hPa 0 cm