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

May weather forecast and climate
Santa Barbara, CA

Orange rooftops of the courthouse buildings of Santa Barbara in California, Pacific Ocean
Orange rooftops of the courthouse buildings of Santa Barbara in California, Pacific Ocean
The last month of the spring, May, is another pleasant month in Santa Barbara, California, with average temperature fluctuating between 54.7°F (12.6°C) and 69.6°F (20.9°C).

Temperature

In May, the average high-temperature is almost the same as in April - a still agreeable 69.6°F (20.9°C). The average low-temperature, in May, is 54.7°F (12.6°C).

Rainfall

In Santa Barbara, during May, the rain falls for 1.4 days and regularly aggregates up to 0.3" (8mm) of precipitation. Throughout the year, there are 37 rainfall days, and 18.1" (459mm) of precipitation is accumulated.

Ocean temperature

In May, the average ocean temperature is 55.9°F (13.3°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

In Santa Barbara, the average length of the day is 14h.

Sunshine

In May, the average sunshine in Santa Barbara is 10h.

UV index

The average daily maximum UV index in Santa Barbara is 9. A UV Index of 8 to 10 symbolizes a very high health vulnerability from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 9 interpret into the following advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 Barbara?

In May, the average high-temperature is 69.6°F (20.9°C), and the average low-temperature is 54.7°F (12.6°C).

How many days does it rain in May in Santa Barbara?

In Santa Barbara, during May, the rain falls for 1.4 days and regularly aggregates up to 0.3" (8mm) of precipitation.

What is the ocean temperature in May in Santa Barbara?

In May, the average ocean temperature in Santa Barbara is 55.9°F (13.3°C). Swimming in 55.9°F (13.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in May in Santa Barbara?

In May, the average length of the day is 14h.

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

In Santa Barbara, the average sunshine in May is 10h.

What is the UV index reading in May in Santa Barbara?

The average daily maximum UV index in May in Santa Barbara, California, is 9. A UV Index of 8 to 10 symbolizes a very high health threat from unprotected exposure to the UV radiation.
Average temperature in May - Santa Barbara, CA
  • Average high temperature in May: 69.6°F

The warmest month (with the highest average high temperature) is August (76°F).
Months with the lowest average high temperature are January and December (64.7°F).

  • Average low temperature in May: 54.6°F

Months with the highest average low temperature are July and August (60.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

Average rainfall in May - Santa Barbara, CA
  • Average rainfall in May: 0.3"

The wettest month (with the highest rainfall) is January (3.8").
Driest months (with the lowest rainfall) are June, July and August (0.1").

Average rainfall days in May - Santa Barbara, CA
  • Average rainfall days in May: 1.4 days

Months with the highest number of rainy days are January and March (6.5 days).
The month with the lowest number of rainy days is July (0.4 days).

Average sea temperature in May - Santa Barbara, CA
  • Average sea temperature in May: 56°F

The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is April (55.7°F).

Average daylight in May / Average sunshine in May - Santa Barbara, CA
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 10h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are January, November and December (Average sunshine: 6).

Average UV index in May - Santa Barbara, CA
  • Average UV index in May: 9

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 3).