June 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 June

June, the first month of the summer in Livermore, is a moderately hot month, with an average temperature fluctuating between 81.1°F (27.3°C) and 53.6°F (12°C).

Temperature

A slight uplift of average high-temperatures is noted in June, with temperatures adjusting from an agreeable 73°F (22.8°C) in May to a warm 81.1°F (27.3°C). In the face of high daytime temperatures, Livermore witnesses a consistent average nighttime low of 53.6°F (12°C) during June.

Heat index

In June, the average heat index is appraised at 82.4°F (28°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

In June, the average relative humidity is 56%.

Rainfall

In June, the rain falls for 1.8 days. Throughout June, 0.12" (3mm) of precipitation is accumulated. In Livermore, California, during the entire year, the rain falls for 70.6 days and collects up to 11.3" (287mm) of precipitation.

Daylight

June has the longest days of the year, with an average of 14h and 42min of daylight.
On the first day of June, sunrise is at 5:46 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:32 pm PDT.

Sunshine

The average sunshine in June in Livermore is 11.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 during June translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What are June temperatures in Livermore?

Livermore in June has an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 53.6°F (12°C). In June, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 82.4°F (28°C).

What is the average humidity in June in Livermore?

In Livermore, California, the average relative humidity in June is 56%.

How many days does it rain in June in Livermore?

In Livermore, California, in June, it is raining for 1.8 days, with typically 0.12" (3mm) of accumulated precipitation.

When are the longest days in Livermore?

June has the longest days of the year in Livermore, California, with an average of 14h and 42min of daylight.

How many hours of daylight does Livermore have in June?

The average day length in June in Livermore, California, is 14h and 44min.

What time are sunrise and sunset in June in Livermore?

In June, on the first day of the month, sunrise is at 5:46 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:32 pm PDT.

How long on average sun shines in June in Livermore?

In June, the average sunshine duration in Livermore, California, is 11.9h.

What are the months with the highest UV index in Livermore?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Livermore, California.

How high is the UV index in June in Livermore?

In June, the average daily maximum UV index in Livermore, California, is 6. A UV Index estimate of 6 to 7 represents a high health threat from 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 June
Livermore, CA

Average temperature in June - Livermore, CA
  • Average high temperature in June: 81.1°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 June: 53.6°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 June
Livermore, CA

Average pressure in June - Livermore, CA
  • Average pressure in June: 29.92"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 June
Livermore, CA

Average wind speed in June - Livermore, CA
  • Average wind speed in June: 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 June
Livermore, CA

Average humidity in June - Livermore, CA
  • Average humidity in June: 56%

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 June
Livermore, CA

Average rainfall in June - Livermore, CA
  • Average rainfall in June: 0.12"

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 June
Livermore, CA

Average rainfall days in June - Livermore, CA
  • Average rainfall days in June: 1.8 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 June /
Average sunshine in June
Livermore, CA

Average daylight in June / Average sunshine in June - Livermore, CA
  • Average daylight in June: 14h and 4min

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 June: 11h and 5min

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 June
Livermore, CA

Average sunshine days in June - Livermore, CA
  • Average sunshine days in June: 27.5 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 June
Livermore, CA

Average UV index in June - Livermore, CA
  • Average UV index in June: 6

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 June
Livermore, CA

Average cloud cover in June - Livermore, CA
  • Average cloud cover in June: 10

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 June
Livermore, CA

Average visibility in June - Livermore, CA
  • Average visibility in June: 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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