May weather forecast
Brea, CA

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Brea City, California, with beautiful forest surroundings and vast hills and mountain ranges in the distance
Brea City, California, with beautiful forest surroundings and vast hills and mountain ranges in the distance

Weather in May

May, the last month of the spring in Brea, is a moderately hot month, with an average temperature varying between 74.3°F (23.5°C) and 56.3°F (13.5°C).

Temperature

The shift into May reveals an average high-temperature of a moderately hot 74.3°F (23.5°C), closely mirroring April's climate. An average low-temperature of 56.3°F (13.5°C) marks the month of May.

Humidity

In Brea, the average relative humidity in May is 61%.

Rainfall

In May, in Brea, the rain falls for 3.1 days. Throughout May, 0.12" (3mm) of precipitation is accumulated. In Brea, during the entire year, the rain falls for 45.6 days and collects up to 6.5" (165mm) of precipitation.

Daylight

The average length of the day in May is 13h and 56min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:35 pm. On the last day of May, sunrise is at 5:41 am and sunset at 7:57 pm PDT.

Sunshine

In Brea, the average sunshine in May is 11.2h.

UV index

In Brea, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Brea?

In Brea, in May, the average high-temperature is 74.3°F (23.5°C), and the average low-temperature is 56.3°F (13.5°C).

What is the average humidity in May?

In May, the average relative humidity is 61%.

How much does it rain in May?

In Brea, California, in May, it is raining for 3.1 days, with typically 0.12" (3mm) of accumulated precipitation.

What is the average length of the day in May?

In May, the average day length is 13h and 56min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 7:57 pm PDT.

How long on average sun shines in May?

In May, the average sunshine duration is 11.2h.

What is the UV index intensity in May in Brea?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Brea, CA

Average temperature in May - Brea, CA
  • Average high temperature in May: 74.3°F

The warmest month (with the highest average high temperature) is August (86°F).
The month with the lowest average high temperature is December (64.6°F).

  • Average low temperature in May: 56.3°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is February (49.8°F).

Average pressure in May
Brea, CA

Average pressure in May - Brea, CA
  • Average pressure in May: 29.92"Hg

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

Average wind speed in May
Brea, CA

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

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are September and October (4.7mph).

Average humidity in May
Brea, CA

Average humidity in May - Brea, CA
  • Average humidity in May: 61%

The month with the highest relative humidity is June (62%).
The month with the lowest relative humidity is November (49%).

Average rainfall in May
Brea, CA

Average rainfall in May - Brea, CA
  • Average rainfall in May: 0.12"

The wettest month (with the highest rainfall) is December (1.5").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in May
Brea, CA

Average rainfall days in May - Brea, CA
  • Average rainfall days in May: 3.1 days

The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.3 days).

Average daylight in May /
Average sunshine in May
Brea, CA

Average daylight in May / Average sunshine in May - Brea, CA
  • Average daylight in May: 13h and 5min

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 1min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).

Average sunshine days in May
Brea, CA

Average sunshine days in May - Brea, CA
  • Average sunshine days in May: 25.8 days

The month with the most sunshine days is June (26.9 days).
The month with the least sunshine days is February (22.1 days).

Average UV index in May
Brea, CA

Average UV index in May - Brea, CA
  • Average UV index in May: 5

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 4).

Average cloud cover in May
Brea, CA

Average cloud cover in May - Brea, CA
  • Average cloud cover in May: 17

The months with the most cloud cover are March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in May
Brea, CA

Average visibility in May - Brea, 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).

Brea, California, USA

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