May weather forecast and climate
Berkeley, CA

the neon-lit iconic Berkeley University Sather Tower in California
the neon-lit iconic Berkeley University Sather Tower in California

Weather in May

May, the last month of the spring, in Berkeley, is a pleasant month, with average temperature ranging between min 50.5°F (10.3°C) and max 68°F (20°C).

Temperature

In May, the average high-temperature is essentially the same as in April - an agreeable 68°F (20°C). In May, the average low-temperature is 50.5°F (10.3°C).

Humidity

In Berkeley, the average relative humidity is 70%.

Rainfall

In Berkeley, it is raining for 4 days, with typically 0.28" (7mm) of accumulated precipitation. Throughout the year, in Berkeley, there are 55.6 rainfall days, and 5.24" (133mm) of precipitation is accumulated.

Daylight

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

Sunshine

In May, the average sunshine in Berkeley is 10.7h.

UV index

April through September, with an average maximum UV index of 5, are months with the highest UV index in Berkeley. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in May in Berkeley?

In Berkeley, California, in May, the average high-temperature is 68°F (20°C), and the average low-temperature is 50.5°F (10.3°C).

What is the average humidity in May in Berkeley?

The average relative humidity in May is 70%.

How much does it rain in Berkeley in May?

In Berkeley, California, in May, during 4 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

What is the average length of the day in May in Berkeley?

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

How long on average sun shines in May in Berkeley?

In Berkeley, the average sunshine in May is 10.7h.

What is the month with the highest UV index in Berkeley?

Months with the highest UV index in Berkeley are April through September, with an average maximum UV index of 5.

What is the UV index reading in May in Berkeley?

In May, the average daily maximum UV index in Berkeley is 5. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in May
Berkeley, CA

Average temperature in May - Berkeley, CA
  • Average high temperature in May: 68°F

The warmest month (with the highest average high temperature) is September (76.6°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is September (56.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).

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Average pressure in May
Berkeley, CA

Average pressure in May - Berkeley, CA
  • Average pressure in May: 29.98"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in May
Berkeley, CA

Average wind speed in May - Berkeley, CA
  • Average wind speed in May: 7.3mph

The windiest month (with the highest average wind speed) is May (7.3mph).
The calmest month (with the lowest average wind speed) is November (5mph).

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Average humidity in May
Berkeley, CA

Average humidity in May - Berkeley, CA
  • Average humidity in May: 70%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (64%).

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Average rainfall in May
Berkeley, CA

Average rainfall in May - Berkeley, CA
  • Average rainfall in May: 0.28"

The wettest month (with the highest rainfall) is February (1.1").
The driest months (with the least rainfall) are June, July, August and September (0.08").

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Average rainfall days in May
Berkeley, CA

Average rainfall days in May - Berkeley, CA
  • Average rainfall days in May: 4 days

The month with the highest number of rainy days is March (8.7 days).
The month with the least rainy days is August (1.5 days).

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

Average daylight in May / Average sunshine in May - Berkeley, CA
  • Average daylight in May: 14.2h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in May: 10.7h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in May
Berkeley, CA

Average sunshine days in May - Berkeley, CA
  • Average sunshine days in May: 23.1 days

The month with the most sunshine days is October (26 days).
The month with the least sunshine days is February (20.5 days).

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Average UV index in May
Berkeley, CA

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

Months with the highest UV index are April, May, June, July, August and September (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in May
Berkeley, CA

Average cloud cover in May - Berkeley, CA
  • Average cloud cover in May: 25

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 11).

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Average visibility in May
Berkeley, CA

Average visibility in May - Berkeley, 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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