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

May weather forecast and climate
Monterey, CA

The scenic view of the rugged mountainous coast of Big Sur in Monterey, California, under the clear blue sky
The scenic view of the rugged mountainous coast of Big Sur in Monterey, California, under the clear blue sky
May, the last month of the spring, in Monterey, is also an enjoyable month, with average temperature fluctuating between 63°F (17.2°C) and 48°F (8.9°C).

Temperature

In May, the average high-temperature is relatively the same as in April - a still enjoyable 63°F (17.2°C). In Monterey, in May, the average low-temperature is 48°F (8.9°C).

Rainfall

In Monterey, California, during May, the rain falls for 4 days and regularly aggregates up to 0.6" (14.2mm) of precipitation. Throughout the year, in Monterey, there are 71 rainfall days, and 21.1" (536mm) of precipitation is accumulated.

Ocean temperature

In Monterey, in May, the average water temperature is 54.1°F (12.3°C).
Note: 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.

Daylight

The average length of the day in May in Monterey is 14.1h.

What is the temperature in May in Monterey?

The average high-temperature, in May, in Monterey, is 63°F (17.2°C), while the average low-temperature is 48°F (8.9°C).

How much does it rain in Monterey in May?

In Monterey, in May, during 4 rainfall days, 0.6" (14.2mm) of precipitation is typically accumulated.

How cold is the water in May in Monterey?

In May, the average ocean temperature is 54.1°F (12.3°C). Swimming in 54.1°F (12.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Monterey have in May?

In May, the average length of the day in Monterey, California, is 14.1h.
Average temperature in May - Monterey, CA
  • Average high temperature in May: 63°F

The warmest month (with the highest average high temperature) is September (69.6°F).
The month with the lowest average high temperature is December (57.8°F).

  • Average low temperature in May: 48.1°F

The month with the highest average low temperature is August (53.1°F).
The coldest month (with the lowest average low temperature) is January (43.7°F).

Average rainfall in May - Monterey, CA
  • Average rainfall in May: 0.6"

The wettest month (with the highest rainfall) is January (4.4").
Driest months (with the lowest rainfall) are July and August (0.1").

Average rainfall days in May - Monterey, CA
  • Average rainfall days in May: 4 days

The month with the highest number of rainy days is January (11 days).
Months with the lowest number of rainy days are July, August and September (2 days).

Average sea temperature in May - Monterey, 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 - Monterey, CA
  • Average daylight in May: 14.1h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).