April weather forecast
Livermore, CA

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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 April

April, the same as March, is another comfortable spring month in Livermore, California, with an average temperature fluctuating between 67.6°F (19.8°C) and 45.1°F (7.3°C).

Temperature

April's arrival signals a subtle increase in average high-temperatures, moving from March's refreshing 62.2°F (16.8°C) to a still comfortable 67.6°F (19.8°C). Livermore, after hot April days, encounters a marked drop to an average nighttime temperature of 45.1°F (7.3°C).

Humidity

In Livermore, the average relative humidity in April is 68%.

Rainfall

In Livermore, during April, the rain falls for 7.2 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, in Livermore, there are 70.6 rainfall days, and 11.3" (287mm) of precipitation is accumulated.

Daylight

In April, the average length of the day in Livermore is 13h and 12min.
On the first day of the month, sunrise is at 6:50 am and sunset at 7:30 pm. On the last day of April, sunrise is at 6:11 am and sunset at 7:56 pm PDT.

Sunshine

In April, the average sunshine is 10.4h.

UV index

The average daily maximum UV index in April in Livermore is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In April, the UV index of 5 transforms into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What are the temperatures in Livermore in April?

The high-temperature, in April, in Livermore, is 67.6°F (19.8°C), while the low-temperature averages to 45.1°F (7.3°C).

What is the average humidity in April in Livermore?

In April, the average relative humidity is 68%.

How many days does it rain in April in Livermore?

In Livermore, during April, the rain falls for 7.2 days and regularly aggregates up to 0.75" (19mm) of precipitation.

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

In Livermore, California, the average day length in April is 13h and 12min.

What time are sunrise and sunset in April in Livermore?

In April, on the first day of the month, sunrise is at 6:50 am and sunset at 7:30 pm. On the last day of the month, in Livermore, California, sunrise is at 6:11 am and sunset at 7:56 pm PDT.

How long on average sun shines in April in Livermore?

In Livermore, California, the average sunshine duration in April is 10.4h.

What is the UV index intensity in April in Livermore?

In Livermore, California, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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 April
Livermore, CA

Average temperature in April - Livermore, CA
  • Average high temperature in April: 67.6°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 April: 45.1°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 April
Livermore, CA

Average pressure in April - Livermore, CA
  • Average pressure in April: 30.03"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 April
Livermore, CA

Average wind speed in April - Livermore, CA
  • Average wind speed in April: 6mph

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 April
Livermore, CA

Average humidity in April - Livermore, CA
  • Average humidity in April: 68%

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 April
Livermore, CA

Average rainfall in April - Livermore, CA
  • Average rainfall in April: 0.75"

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 April
Livermore, CA

Average rainfall days in April - Livermore, CA
  • Average rainfall days in April: 7.2 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 April /
Average sunshine in April
Livermore, CA

Average daylight in April / Average sunshine in April - Livermore, CA
  • Average daylight in April: 13h 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 April: 10h and 2min

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 April
Livermore, CA

Average sunshine days in April - Livermore, CA
  • Average sunshine days in April: 22.2 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 April
Livermore, CA

Average UV index in April - Livermore, CA
  • Average UV index in April: 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 April
Livermore, CA

Average cloud cover in April - Livermore, CA
  • Average cloud cover in April: 26

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 April
Livermore, CA

Average visibility in April - Livermore, CA
  • Average visibility in April: 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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Livermore, California, USA

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