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

June weather forecast and climate
Hercules, CA

Ocean temperature

In June, the average ocean temperature in Hercules, California, is 52.9°F (11.6°C).
Note: Swimming in 52.9°F (11.6°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The month with the longest days is June, with an average of 14.8h of daylight.

How cold is the water in June in Hercules?

In Hercules, the average seawater temperature in June is 52.9°F (11.6°C). Swimming in 52.9°F (11.6°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

When are the longest days in Hercules?

The month with the longest days in Hercules, California, is June, with an average of 14.8h of daylight.

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

The average length of the day in June in Hercules, California, is 14.8h.
Average sea temperature in June - Hercules, CA
  • Average sea temperature in June: 52.9°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 June - Hercules, CA
  • Average daylight in June: 14.8h

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