Swimming in Mendocino in september 2025: Average sea temperature in september and tide times in september 2025

Average sea temperature in Mendocino in september 2025.

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

Minimum: 53°F

Average: 55°F

Maximum: 57°F

Other useful seasonal weather averages in september:

  • Outside temperature: 58°F to 68°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 8.7mph
  • It rains a total of 0.4in, over 1 day(s).

Should we swim in Mendocino in september?

No... The water temperature in Mendocino in september is freezing

You won't be able to swim in Mendocino in september! The water temperature is freezing, reaching as low as 53°F (and only 57°F at best)! Our advice: if you are going to Mendocino this month, plan to sightsee and forget the beach!

Note also that in september, the climate is perfect with an average outside temperature of 64°F, 0.4in of precipitation (over 1 days) and 78.15 % humidity.

Water and normal seasonal temperatures in Mendocino in september

September
Average sea temperature 55°F
Minimum sea temperature 53°F
Maximum sea temperature 57°F
Average outside temperature 65°F
Maximum outside temperature 70°F
Minimum outside temperature 59°F
Wind speed 11.8mph
Wind temperature 58°F
Precipitation 0.4in
Number of days of rain 1 jour(s)
(2%)
Humidity 79%
Visibility in kilometers 9.68km
Cloud cover 11%
Our opinion freezing swimming

Chart of the tides in september 2025

Tide times in september 2025 in Mendocino

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
Big Sur in september58°F60°Ffreezing 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
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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