May weather forecast and climate
Santa Ana, CA

Night lights of the street in Santa Ana, California, with palm trees lining the street
Night lights of the street in Santa Ana, California, with palm trees lining the street

Weather in May

The last month of the spring, May, is also an agreeable month in Santa Ana, California, with average temperature ranging between min 55.9°F (13.3°C) and max 72°F (22.2°C).

Temperature

In May, the average high-temperature is almost the same as in April - a still pleasant 72°F (22.2°C). The average low-temperature, in Santa Ana, is 55.9°F (13.3°C).

Humidity

The average relative humidity in Santa Ana is 65%.

Rainfall

In Santa Ana, California, in May, it is raining for 4.8 days, with typically 0.24" (6mm) of accumulated precipitation. In Santa Ana, during the entire year, the rain falls for 55 days and collects up to 7.4" (188mm) of precipitation.

Daylight

In Santa Ana, the average length of the day is 13.9h.

Sunshine

In May, the average sunshine is 11.3h.

UV index

The average daily maximum UV index in Santa Ana, California, is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.
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FAQ

What is the temperature in May in Santa Ana?

The average high-temperature, in May, is 72°F (22.2°C), while the average low-temperature is 55.9°F (13.3°C).

What is the average humidity in May in Santa Ana?

The average relative humidity in May in Santa Ana, California, is 65%.

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

In Santa Ana, during May, the rain falls for 4.8 days and regularly aggregates up to 0.24" (6mm) of precipitation.

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

In May, the average length of the day in Santa Ana, California, is 13.9h.

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

The average sunshine in May in Santa Ana, California, is 11.3h.

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

In Santa Ana, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in May
Santa Ana, CA

Average temperature in May - Santa Ana, CA
  • Average high temperature in May: 72°F

The warmest month (with the highest average high temperature) is August (83.1°F).
The month with the lowest average high temperature is December (63.7°F).

  • Average low temperature in May: 55.9°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (50.2°F).

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Average pressure in May
Santa Ana, CA

Average pressure in May - Santa Ana, CA
  • Average pressure in May: 29.92"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.88").

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Average wind speed in May
Santa Ana, CA

Average wind speed in May - Santa Ana, CA
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.6mph).

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Average humidity in May
Santa Ana, CA

Average humidity in May - Santa Ana, CA
  • Average humidity in May: 65%

The month with the highest relative humidity is June (66%).
The month with the lowest relative humidity is November (52%).

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Average rainfall in May
Santa Ana, CA

Average rainfall in May - Santa Ana, CA
  • Average rainfall in May: 0.24"

The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in May
Santa Ana, CA

Average rainfall days in May - Santa Ana, CA
  • Average rainfall days in May: 4.8 days

The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.7 days).

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Average daylight in May /
Average sunshine in May
Santa Ana, CA

Average daylight in May / Average sunshine in May - Santa Ana, CA
  • Average daylight in May: 13.9h

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

  • Average sunshine in May: 11.3h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in May
Santa Ana, CA

Average sunshine days in May - Santa Ana, CA
  • Average sunshine days in May: 22.1 days

The month with the most sunshine days is January (25 days).
The month with the least sunshine days is February (20.8 days).

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Average UV index in May
Santa Ana, CA

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

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

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Average cloud cover in May
Santa Ana, CA

Average cloud cover in May - Santa Ana, CA
  • Average cloud cover in May: 17

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

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Average visibility in May
Santa Ana, CA

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

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

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