Montara
California, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Montara, CA

Ocean temperature

In Montara, California, the average seawater temperature in December is 54.3°F (12.4°C).
Note: Swimming in 54.3°F (12.4°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

With an average of 9.6h of daylight, December has the shortest days of the year.

What is the ocean temperature in December in Montara?

In Montara, in December, the average water temperature is 54.3°F (12.4°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the shortest days in Montara?

The month with the shortest days in Montara is December, with an average of 9.6h of daylight.

What is the average length of the day in December in Montara?

In December, the average length of the day in Montara is 9.6h.
Average sea temperature in December - Montara, CA
  • Average sea temperature in December: 54.3°F

The best month for swimming (with the highest average sea temperature) is September (56.9°F).
The coldest month (with the lowest average sea temperature) is June (52.4°F).

Average daylight in December - Montara, CA
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).