May weather forecast
Santa Barbara, CA

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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

Weather in May

May marks the beginning of comfortable, sunny weather conditions in Santa Barbara. With average temperatures ranging between 69.4°F (20.8°C) and 53.1°F (11.7°C), it suits outdoor activities. Recorded rainfall drops to the year's lowest at 0.16" (4mm), striking a stark contrast to the previous months. Given the decline in rainfall, the relative humidity falls slightly to 62%, despite the increase in temperature. As May passes, June arrives, bringing warmer temperatures and longer hours of daylight.

Temperature

May's average high-temperature stands at a pleasant 69.4°F (20.8°C), showing little deviation from April's 66.7°F (19.3°C). Santa Barbara, in the month of May, anticipates a consistent average low-temperature of 53.1°F (11.7°C).

Humidity

In Santa Barbara, California, the average relative humidity in May is 62%.

Rainfall

In Santa Barbara, California, in May, it is raining for 2.4 days, with typically 0.16" (4mm) of accumulated precipitation. In Santa Barbara, during the entire year, the rain falls for 43.7 days and collects up to 7.68" (195mm) of precipitation.

Ocean temperature

In May, the average ocean temperature in Santa Barbara is 55.9°F (13.3°C).
Note: Caution: 55.9°F (13.3°C) temperatures below 50°F (10°C) during swimming can result in intense cold shock and quickened breathing.

Daylight

In Santa Barbara, the average length of the day in May is 13h and 58min.
On the first day of May in Santa Barbara, sunrise is at 6:07 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:05 pm PDT.

Sunshine

In Santa Barbara, California, the average sunshine in May is 11.7h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In May, the maximum UV index of 5 transforms into these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.

Frequently asked questions

What is the average May temperature in Santa Barbara?

In Santa Barbara, 69.4°F (20.8°C) is the average high-temperature and 53.1°F (11.7°C) is the average low-temperature during May.

What is the average humidity in May in Santa Barbara?

The average relative humidity in May in Santa Barbara is 62%.

How much does it rain in Santa Barbara in May?

In Santa Barbara, during May, the rain falls for 2.4 days and regularly aggregates up to 0.16" (4mm) 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.

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

The average day length in May in Santa Barbara, California, is 13h and 58min.

What time are sunrise and sunset in May in Santa Barbara?

In May, on the first day of the month, sunrise is at 6:07 am and sunset at 7:43 pm. On the last day of the month, in Santa Barbara, sunrise is at 5:47 am and sunset at 8:05 pm PDT.

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

In Santa Barbara, California, the average sunshine duration in May is 11.7h.

How high is the UV index in May in Santa Barbara?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Santa Barbara, CA

Average temperature in May - Santa Barbara, CA
  • Average high temperature in May: 69.4°F

The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (60.6°F).

  • Average low temperature in May: 53.1°F

The month with the highest average low temperature is August (62.1°F).
The coldest month (with the lowest average low temperature) is February (47.7°F).

Average pressure in May
Santa Barbara, CA

Average pressure in May - Santa Barbara, CA
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).

Average wind speed in May
Santa Barbara, CA

Average wind speed in May - Santa Barbara, CA
  • Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

Average humidity in May
Santa Barbara, CA

Average humidity in May - Santa Barbara, CA
  • Average humidity in May: 62%

The month with the highest relative humidity is March (64%).
The months with the lowest relative humidity are September, October and November (56%).

Average rainfall in May
Santa Barbara, CA

Average rainfall in May - Santa Barbara, CA
  • Average rainfall in May: 0.16"

The wettest month (with the highest rainfall) is January (1.57").
The driest months (with the least rainfall) are June and August (0.08").

Average rainfall days in May
Santa Barbara, CA

Average rainfall days in May - Santa Barbara, CA
  • Average rainfall days in May: 2.4 days

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.2 days).

Average sea temperature in May
Santa Barbara, CA

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 / Average sunshine in May - Santa Barbara, CA
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 11h and 4min

The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).

Average sunshine days in May
Santa Barbara, CA

Average sunshine days in May - Santa Barbara, CA
  • Average sunshine days in May: 27.3 days

The month with the most sunshine days is August (28 days).
The month with the least sunshine days is February (21.6 days).

Average UV index in May
Santa Barbara, CA

Average UV index in May - Santa Barbara, CA
  • Average UV index in May: 5

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

Average cloud cover in May
Santa Barbara, CA

Average cloud cover in May - Santa Barbara, CA
  • Average cloud cover in May: 12

The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in May
Santa Barbara, CA

Average visibility in May - Santa Barbara, CA
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Santa Barbara, California, USA

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