May weather forecast
Livermore, CA

Share
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

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

Temperature

As Livermore, California, transitions into May, the average high-temperature is observed to slightly rise from a refreshing 67.6°F (19.8°C) in April to a pleasant 73°F (22.8°C). From significant daily highs, Livermore's nights in May cool down to an average low-temperature of 48.7°F (9.3°C).

Humidity

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

Rainfall

In Livermore, in May, it is raining for 4.4 days, with typically 0.43" (11mm) of accumulated precipitation. 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 is 14h and 13min.
On the first day of May in Livermore, sunrise is at 6:10 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 May, the average sunshine is 11.1h.

UV index

In May, the average daily maximum UV index in Livermore is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In May, the UV index of 5 transforms into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Feb 9, 2024 | Published by: Weather U.S. | Resources

Frequently asked questions

What are May temperatures in Livermore?

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

What is the average humidity in May in Livermore?

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

How much does it rain in Livermore in May?

In Livermore, during May, the rain falls for 4.4 days and regularly aggregates up to 0.43" (11mm) of precipitation.

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

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

When is the sunrise / sunset in May in Livermore?

In May, on the first day of the month, sunrise is at 6:10 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 long on average sun shines in May in Livermore?

In May, the average sunshine duration in Livermore, California, 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 reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
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).

[Resources]

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).

[Resources]

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).

[Resources]

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%).

[Resources]

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").

[Resources]

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).

[Resources]

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 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 11h and 1min

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

Livermore, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location