Swimming in Big Sur in september 2025: Average sea temperature in september and tide times in september 2025

Average sea temperature in Big Sur in september 2025.

In september, according to seasonal norms, the sea temperature in Big Sur is:

Minimum: 56°F

Average: 58°F

Maximum: 60°F

Other useful seasonal weather averages in september:

  • Outside temperature: 61°F to 71°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 9.9mph
  • It rains a total of 0.2in, over 0 day(s).

Should we swim in Big Sur in september?

No... The water temperature in Big Sur in september is freezing

You won't be able to swim in Big Sur in september! The water temperature is freezing, reaching as low as 56°F (and only 60°F at best)! Our advice: if you are going to Big Sur this month, plan to sightsee and forget the beach!

Note also that in september, the climate is perfect with an average outside temperature of 66°F, 0.2in of precipitation (over 0 days) and 77.93 % humidity.

Water and normal seasonal temperatures in Big Sur in september

September
Average sea temperature 58°F
Minimum sea temperature 56°F
Maximum sea temperature 60°F
Average outside temperature 67°F
Maximum outside temperature 72°F
Minimum outside temperature 61°F
Wind speed 11.2mph
Wind temperature 61°F
Precipitation 0.2in
Number of days of rain 0 jour(s)
(1%)
Humidity 78%
Visibility in kilometers 9.46km
Cloud cover 12%
Our opinion freezing swimming

Chart of the tides in september 2025

Tide times in september 2025 in Big Sur

Swim elsewhere in California in september

City Average T° Max. T° Our opinion
Los Angeles in september67°F70°Fcool swimming
San Francisco in september58°F59°Ffreezing swimming
San Diego in september67°F70°Fcool swimming
Carmel-by-the-Sea in september59°F61°Ffreezing swimming
Eureka in september53°F57°Ffreezing swimming
Half Moon Bay in september58°F59°Ffreezing swimming
Hollywood in september67°F70°Fcool swimming
Malibu in september66°F69°Fcool swimming
Mendocino in september55°F57°Ffreezing swimming
Morro Bay in september59°F62°Ffreezing swimming
Oakland in september58°F59°Ffreezing swimming
Pismo Beach in september59°F62°Ffreezing swimming
San Clemente in september68°F70°Fcool swimming
Santa Barbara in september62°F65°Fcold swimming
Santa Cruz California in september58°F60°Ffreezing swimming
Santa Monica in september67°F70°Fcool swimming
Ventura in september64°F67°Fcool swimming
Bodega Bay in september56°F58°Ffreezing swimming
Carlsbad in september68°F70°Fcool swimming
Huntington Beach in september67°F70°Fcool swimming

Swim in California in september: sea temperature by city

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