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

49°F

Estimated Water Temp

60°F

Daily mean (modeled)

Wind

6 mph SW

Barometer

29.36 inHg

Reservoir Elevation

773.1 ft

Capacity

76%

Lake Naciemiento

9:53 am, Apr 23, 2026

50°F

Humidity: 76 %

Pressure: 1031 mb

Wind: 10 mph

Wind Gust: 12 mph

Clouds: 25%

Visibility: 6 mi

Sunrise: 5:48 am

Sunset: 8:10 pm

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

10:00 am

57°/61°°F 0 mm 0% 12 mph 47% 1031 mb 0 cm

1:00 pm

62°/63°°F 0 mm 0% 12 mph 34% 1030 mb 0 cm

4:00 pm

59°/62°°F 0 mm 0% 11 mph 34% 1029 mb 0 cm

7:00 pm

50°/56°°F 0 mm 0% 9 mph 55% 1030 mb 0 cm

12:00 am

43°/45°°F 0 mm 0% 6 mph 64% 1029 mb 0 cm

3:00 am

41°/42°°F 0 mm 0% 6 mph 67% 1028 mb 0 cm

6:00 am

40°/46°°F 0 mm 0% 6 mph 61% 1028 mb 0 cm

9:00 am

50°/57°°F 0 mm 0% 7 mph 38% 1028 mb 0 cm

Lake San Antonio

SLO County / Monterey County

Air Temp

48°F

Estimated Water Temp

59°F

Daily mean (modeled)

Wind

4 mph SW

Barometer

28.91 inHg

Reservoir Elevation

754.3 ft

Capacity

77%

Lake San Antonio

1:53 am, Apr 23, 2026

51°F

Clear

Humidity: 86 %

Pressure: 1022 hPa

Wind: 5 mph

Wind Gust: 11 mph

Clouds: 0%

Visibility: 10 mi

Sunrise: 6:20 am

Sunset: 7:44 pm

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

2:00 am

47°/49°°F 0 mm 0% 4 mph 77% 1020 hPa 0 cm

5:00 am

46°/49°°F 0 mm 0% 3 mph 78% 1020 hPa 0 cm

8:00 am

53°/62°°F 0 mm 0% 3 mph 65% 1019 hPa 0 cm

11:00 am

66°/72°°F 0 mm 0% 5 mph 31% 1018 hPa 0 cm

2:00 pm

72°/72°°F 0 mm 0% 5 mph 27% 1015 hPa 0 cm

5:00 pm

60°/71°°F 0 mm 0% 5 mph 39% 1013 hPa 0 cm

8:00 pm

52°/56°°F 0 mm 0% 3 mph 67% 1015 hPa 0 cm

12:00 am

48°/50°°F 0 mm 0% 3 mph 72% 1015 hPa 0 cm

Lake Lopez

Arroyo Grande / SLO County

Air Temp

50°F

Estimated Water Temp

60°F

Daily mean (modeled)

Wind

7 mph NNE

Barometer

29.12 inHg

Reservoir Elevation

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Capacity

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Lake Lopez

1:53 am, Apr 23, 2026

54°F

Clear

Humidity: 90 %

Pressure: 1019 hPa

Wind: 5 mph

Wind Gust: 9 mph

Clouds: 0%

Visibility: 10 mi

Sunrise: 6:19 am

Sunset: 7:42 pm

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

2:00 am

50°/51°°F 0 mm 0% 6 mph 73% 1019 hPa 0 cm

5:00 am

50°/52°°F 0 mm 0% 7 mph 70% 1019 hPa 0 cm

8:00 am

56°/64°°F 0 mm 0% 10 mph 56% 1018 hPa 0 cm

11:00 am

68°/75°°F 0 mm 0% 11 mph 34% 1017 hPa 0 cm

2:00 pm

70°/73°°F 0 mm 0% 8 mph 31% 1015 hPa 0 cm

5:00 pm

58°/68°°F 0 mm 0% 6 mph 48% 1014 hPa 0 cm

8:00 pm

53°/55°°F 0 mm 0% 4 mph 70% 1015 hPa 0 cm

12:00 am

51°/52°°F 0 mm 0% 3 mph 66% 1014 hPa 0 cm

Santa Margarita Lake

Central Coast

Air Temp

45°F

Estimated Water Temp

52°F

Daily mean (modeled)

Wind

9 mph NNE

Barometer

28.04 inHg

Reservoir Elevation

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Capacity

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Santa Margarita Lake

1:53 am, Apr 23, 2026

48°F

Clear

Humidity: 80 %

Pressure: 1020 hPa

Wind: 3 mph

Wind Gust: 5 mph

Clouds: 0%

Visibility: 6 mi

Sunrise: 6:19 am

Sunset: 7:42 pm

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

2:00 am

47°/47°°F 0 mm 0% 4 mph 77% 1019 hPa 0 cm

5:00 am

46°/49°°F 0 mm 0% 6 mph 69% 1019 hPa 0 cm

8:00 am

51°/58°°F 0 mm 0% 10 mph 60% 1018 hPa 0 cm

11:00 am

62°/68°°F 0 mm 0% 13 mph 39% 1017 hPa 0 cm

2:00 pm

68°/68°°F 0 mm 0% 9 mph 31% 1015 hPa 0 cm

5:00 pm

60°/67°°F 0 mm 0% 4 mph 41% 1014 hPa 0 cm

8:00 pm

56°/57°°F 0 mm 0% 3 mph 59% 1015 hPa 0 cm

12:00 am

54°/55°°F 0 mm 0% 3 mph 57% 1014 hPa 0 cm