June weather forecast
Sonoma, CA

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Neat rows of vines in a vineyard farm in Sonoma, California
Neat rows of vines in a vineyard farm in Sonoma, California

Weather in June

June heralds the beginning of summer in Sonoma, characterized by notably increased temperatures from May, reaching up to 79.5°F (26.4°C). As the mercury rises, rainfall becomes a rare event with practically no rainfall from June onward. The combination of longer daylight duration, reduced cloud cover, and high temperatures results in an enhanced UV index. The city wakes up to typically clear, sunny days, making it the perfect time for tourists to revel in outdoor activities. While June days may be hot, the environment is kept comfortable by a relative reduction in humidity.

Temperature

As Sonoma welcomes June, the average high-temperature displays a subtle shift, adjusting from an agreeable 71.2°F (21.8°C) in May to a moderately hot 79.5°F (26.4°C). Sonoma reports a sharp reduction in temperature during June, averaging at a cool 53.1°F (11.7°C) at night.

Humidity

In Sonoma, the average relative humidity in June is 61%.

Rainfall

In Sonoma, in June, it is raining for 1.5 days, with typically 0.12" (3mm) of accumulated precipitation. In Sonoma, during the entire year, the rain falls for 73.3 days and collects up to 15.47" (393mm) of precipitation.

Daylight

With an average of 14h and 48min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:47 am and sunset at 8:27 pm. On the last day of June, sunrise is at 5:50 am and sunset at 8:37 pm PDT.

Sunshine

In Sonoma, the average sunshine in June is 11.5h.

UV index

June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In June, a daily UV index of 6 turns into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average June temperature?

In Sonoma, in June, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 53.1°F (11.7°C).

What is the average humidity in June?

In June, the average relative humidity is 61%.

How much does it rain in June?

In June, the rain falls for 1.5 days. Throughout June, 0.12" (3mm) of precipitation is accumulated.

When are the longest days?

June has the longest days of the year, with an average of 14h and 48min of daylight.

What is the average length of the day in June?

In June, the average day length is 14h and 47min.

When is the sunrise / sunset in June?

In June, on the first day of the month, sunrise is at 5:47 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:37 pm PDT.

How long on average sun shines in June?

The average sunshine duration in June is 11.5h.

What is the month with the highest UV index in Sonoma?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in June?

In Sonoma, the average daily maximum UV index in June is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Sonoma, CA

Average temperature in June - Sonoma, CA
  • Average high temperature in June: 79.5°F

The warmest month (with the highest average high temperature) is August (82.9°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in June: 53.1°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

Average pressure in June
Sonoma, CA

Average pressure in June - Sonoma, CA
  • Average pressure in June: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in June
Sonoma, CA

Average wind speed in June - Sonoma, CA
  • Average wind speed in June: 5.9mph

The windiest month (with the highest average wind speed) is May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).

Average humidity in June
Sonoma, CA

Average humidity in June - Sonoma, CA
  • Average humidity in June: 61%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (59%).

Average rainfall in June
Sonoma, CA

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

The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in June
Sonoma, CA

Average rainfall days in June - Sonoma, CA
  • Average rainfall days in June: 1.5 days

The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (0.8 days).

Average daylight in June /
Average sunshine in June
Sonoma, CA

Average daylight in June / Average sunshine in June - Sonoma, CA
  • Average daylight in June: 14h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in June: 11h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in June
Sonoma, CA

Average sunshine days in June - Sonoma, CA
  • Average sunshine days in June: 26.8 days

The month with the most sunshine days is July (28.7 days).
The month with the least sunshine days is March (16.1 days).

Average UV index in June
Sonoma, CA

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

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

Average cloud cover in June
Sonoma, CA

Average cloud cover in June - Sonoma, CA
  • Average cloud cover in June: 14

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 8).

Average visibility in June
Sonoma, CA

Average visibility in June - Sonoma, 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).

Sonoma, California, USA

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