Opal Cliffs
California, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Opal Cliffs, CA

Ocean temperature

In May, the average ocean temperature in Opal Cliffs, California, is 54.1°F (12.3°C).
Note: Swimming in 54.1°F (12.3°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

In Opal Cliffs, the average length of the day in May is 14.2h.

What is the water temperature in May in Opal Cliffs?

In Opal Cliffs, the average seawater temperature in May is 54.1°F (12.3°C). Swimming in 54.1°F (12.3°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.

How many hours of daylight does Opal Cliffs have in May?

In May, the average length of the day in Opal Cliffs, California, is 14.2h.
Average sea temperature in May - Opal Cliffs, CA
  • Average sea temperature in May: 54.2°F

Best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).

Average daylight in May - Opal Cliffs, CA
  • Average daylight in May: 14.2h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.7h).