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

March weather forecast and climate
Hercules, CA

Ocean temperature

In March, the average ocean temperature in Hercules, California, is 53.4°F (11.9°C).
Note: Swimming in 53.4°F (11.9°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In March, the average length of the day is 12h.

What is the water temperature in March in Hercules?

In Hercules, in March, the average water temperature is 53.4°F (11.9°C). Swimming in 53.4°F (11.9°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in March in Hercules?

The average length of the day in March is 12h.
Average sea temperature in March - Hercules, CA
  • Average sea temperature in March: 53.5°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 March - Hercules, CA
  • Average daylight in March: 12h

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