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

September weather forecast and climate
Pinole, CA

Ocean temperature

The month with the warmest seawater in Pinole, California, is September, with an average ocean temperature of 57°F (13.9°C).
Note: Swimming in 57°F (13.9°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The average length of the day in September is 12.4h.

What month is the ocean warmest in Pinole?

With an average ocean temperature of 57°F (13.9°C), September is the month with the warmest seawater in Pinole.

How cold is the water in September in Pinole?

In September, the average ocean temperature is 57°F (13.9°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 average length of the day in September in Pinole?

In September, the average length of the day in Pinole, California, is 12.4h.
Average sea temperature in September - Pinole, CA
  • Average sea temperature in September: 57°F

The best month for swimming (with the highest average sea temperature) is September (57°F).
The coldest month (with the lowest average sea temperature) is April (52.6°F).

Average daylight in September - Pinole, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.8h).
The month with shortest days is December (Average daylight: 9.6h).