May weather forecast
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 an average temperature ranging between min 48.7°F (9.3°C) and max 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

In May, the average relative humidity is 63%.

Rainfall

In Livermore, in May, during 4.4 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. Throughout the year, 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 14h and 13min.
On the first day of May in Livermore, sunrise is at 6:11 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:22 pm PDT.

Sunshine

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

UV index

The average daily maximum UV index in May in Livermore is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays 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. A wide-brim hat offers excellent sun protection for the 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 Livermore?

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

What is the average humidity in May in Livermore?

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

How many days does it rain in May in Livermore?

In Livermore, California, in May, during 4.4 rainfall days, 0.43" (11mm) of precipitation is typically accumulated.

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

The average day length in May in Livermore, California, is 14h and 13min.

When are sunrise and sunset in May in Livermore?

In May, on the first day of the month, sunrise is at 6:11 am and sunset at 7:57 pm. On the last day of the month, in Livermore, sunrise is at 5:47 am and sunset at 8:22 pm PDT.

How many hours of sunshine does Livermore have in May?

The average sunshine duration in May is 11.1h.

What is the UV index intensity in May in Livermore?

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

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"Hg

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

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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%).
The 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: 14h and 13min

The month with the longest days is June (Average daylight: 14h and 44min).
The month with the shortest days is December (Average daylight: 9h and 37min).

  • Average sunshine in May: 11h and 6min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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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

The months with the highest UV index are June, July and August (UV index 6).
The 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

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).

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