May weather forecast and climate
Livermore, CA

A path in the scenic hilly and forest landscape of the famous Lake Del Valle Regional Park in Livermore, California
A path in the scenic hilly and forest landscape of the famous Lake Del Valle Regional Park in Livermore, California

Weather in May

The last month of the spring, May, is an agreeable month in Livermore, California, with average temperature fluctuating between 48.7°F (9.3°C) and 73°F (22.8°C).

Temperature

In May, the average high-temperature marginally rises, from an enjoyable 67.6°F (19.8°C) in April, to a pleasant 73°F (22.8°C). In May, in Livermore, the average low-temperature is 48.7°F (9.3°C).

Humidity

The average relative humidity in Livermore, California, is 63%.

Rainfall

In Livermore, California, it is raining for 4.4 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, in Livermore, there are 70.6 rainfall days, and 11.3" (287mm) of precipitation is accumulated.

Daylight

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

Sunshine

In Livermore, the average sunshine is 11.1h.

UV index

In Livermore, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
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 Livermore?

The average high-temperature, in May, in Livermore, is 73°F (22.8°C), while the average low-temperature is 48.7°F (9.3°C).

What is the average humidity in May in Livermore?

In May, the average relative humidity in Livermore, California, is 63%.

How much does it rain in Livermore in May?

In May, in Livermore, California, the rain falls for 4.4 days. Throughout May, 0.43" (11mm) of precipitation is accumulated.

How many hours of daylight does Livermore have in May?

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

How many hours of sunshine does Livermore have in May?

In May, the average sunshine in Livermore is 11.1h.

What is the UV index intensity in May in Livermore?

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

Average temperature in May
Livermore, CA

Average temperature in May - Livermore, CA
  • Average high temperature in May: 73°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (54.9°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).

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Average pressure in May
Livermore, CA

Average pressure in May - Livermore, CA
  • Average pressure in May: 29.97"

The month with the highest atmospheric pressure is January (30.14").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in May
Livermore, CA

Average wind speed in May - Livermore, CA
  • Average wind speed in May: 6.5mph

The windiest months (with the highest average wind speed) are May and June (6.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

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Average humidity in May
Livermore, CA

Average humidity in May - Livermore, CA
  • Average humidity in May: 63%

The month with the highest relative humidity is March (74%).
Months with the lowest relative humidity are July and September (55%).

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Average rainfall in May
Livermore, CA

Average rainfall in May - Livermore, CA
  • Average rainfall in May: 0.43"

The wettest month (with the highest rainfall) is February (2.09").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in May
Livermore, CA

Average rainfall days in May - Livermore, CA
  • Average rainfall days in May: 4.4 days

The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is August (1.3 days).

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

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

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in May: 11.1h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days in May
Livermore, CA

Average sunshine days in May - Livermore, CA
  • Average sunshine days in May: 25.4 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (17.6 days).

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Average UV index in May
Livermore, CA

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in May
Livermore, CA

Average cloud cover in May - Livermore, CA
  • Average cloud cover in May: 19

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).

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Average visibility in May
Livermore, CA

Average visibility in May - Livermore, 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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