Santa Cruz
California, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Santa Cruz, CA

A high aerial view of the bay area in Santa Cruz, California, view of the beach sand, numerous parked cars, scenic trees, and residential homes
A high aerial view of the bay area in Santa Cruz, California, view of the beach sand, numerous parked cars, scenic trees, and residential homes
May, the last month of the spring, in Santa Cruz, is an agreeable month, with temperature in the range of an average high of 70.2°F (21.2°C) and an average low of 48.6°F (9.2°C).

Temperature

In Santa Cruz, the average high-temperature in May is relatively the same as in April - a pleasant 70.2°F (21.2°C). In Santa Cruz, California, the average low-temperature is 48.6°F (9.2°C).

Rainfall

In Santa Cruz, during 3.3 rainfall days, 0.9" (21.6mm) of precipitation is typically accumulated. Throughout the year, there are 66.2 rainfall days, and 31.5" (801mm) of precipitation is accumulated.

Ocean temperature

In Santa Cruz, in May, the average water temperature 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.

Daylight

In Santa Cruz, the average length of the day in May is 14.2h.

Sunshine

Months with the most sunshine are May through July, with an average of 11h of sunshine.

UV index

In May, the average daily maximum UV index in Santa Cruz, California, is 8. A UV Index reading of 8 to 10 represents a very high health hazard from unsafe exposure to the UV radiation for the ordinary person.
The average daily UV index of 8 in May transform into the following instructions:
Take special precautions, as unprotected skin can be damaged and can burn quickly. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in May in Santa Cruz?

In May, in Santa Cruz, California, the average high-temperature is 70.2°F (21.2°C), and the average low-temperature is 48.6°F (9.2°C).

How much does it rain in Santa Cruz in May?

In Santa Cruz, California, in May, it is raining for 3.3 days, with typically 0.9" (21.6mm) of accumulated precipitation.

What is the ocean temperature in May in Santa Cruz?

In May, the average ocean temperature in Santa Cruz is 54.1°F (12.3°C). 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.

How many hours of daylight does Santa Cruz have in May?

The average length of the day in May is 14.2h.

What is the month with the most sunshine in Santa Cruz?

Months with the most sunshine in Santa Cruz are May through July, with an average of 11h of sunshine.

How long on average sun shines in May in Santa Cruz?

In Santa Cruz, the average sunshine in May is 11h.

What is the UV index intensity in May in Santa Cruz?

In May, the average daily maximum UV index is 8. A UV Index reading of 8 to 10 represents a very high health risk from the exposure to the Sun's UV radiation.
Average temperature in May - Santa Cruz, CA
  • Average high temperature in May: 70.1°F

The warmest month (with the highest average high temperature) is September (74.5°F).
The month with the lowest average high temperature is December (60°F).

  • Average low temperature in May: 48.6°F

The month with the highest average low temperature is August (53.9°F).
Coldest months (with the lowest average low temperature) are January and December (40.8°F).

Average rainfall in May - Santa Cruz, CA
  • Average rainfall in May: 0.9"

The wettest month (with the highest rainfall) is January (6.4").
Driest months (with the lowest rainfall) are July and August (0").

Average rainfall days in May - Santa Cruz, CA
  • Average rainfall days in May: 3.3 days

The month with the highest number of rainy days is February (10.9 days).
The month with the lowest number of rainy days is July (0.3 days).

Average sea temperature in May - Santa Cruz, CA
  • Average sea temperature in May: 54.1°F

The best month for swimming (with the highest average sea temperature) is September (58.2°F).
The coldest month (with the lowest average sea temperature) is April (53.9°F).

Average daylight in May / Average sunshine in May - Santa Cruz, 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).

  • Average sunshine in May: 11h

Months with most sunshine are May, June and July (Average sunshine: 11h).
The month with least sunshine is December (Average sunshine: 5h).

Average UV index in May - Santa Cruz, CA
  • Average UV index in May: 8

Months with the highest UV index are June, July and August (UV index 9).
Months with the lowest UV index are January and December (UV index 2).