Pismo Beach
California, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Pismo Beach, CA

Ocean temperature

April and May, with an average ocean temperature of 54.3°F (12.4°C), are months with the coldest seawater in Pismo Beach, California.
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

The average length of the day in May is 14h.

When is the ocean coldest in Pismo Beach?

April and May, with an average ocean temperature of 54.3°F (12.4°C), are months with the coldest seawater in Pismo Beach, California.

What is the water temperature in May in Pismo Beach?

In Pismo Beach, California, in May, the average water temperature is 54.3°F (12.4°C). Swimming in 54.3°F (12.4°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 Pismo Beach have in May?

The average length of the day in May in Pismo Beach is 14h.
Average sea temperature in May - Pismo Beach, CA
  • Average sea temperature in May: 54.4°F

Best months for swimming (with the highest average sea temperature) are August and October (58.6°F).
The coldest month (with the lowest average sea temperature) is April (54.3°F).

Average daylight in May - Pismo Beach, CA
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).