June weather forecast
San Jose, CA

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A sunset panorama of the lit city of San Jose, California
A sunset panorama of the lit city of San Jose, California

Weather in June

The month of June signals the start of the summer season in San Jose. It offers a newfound balance between warmth and humidity, bringing about idyllic summer conditions. It should also be noted that June has the longest daylight hours, accumulating to roughly 14.7 per day. As a prevalent vacation month, June is synonymous with summer breaks, and its inviting weather conditions back up this reputation.

Temperature

June in San Jose showcases a minor temperature ascent, adjusting from May's agreeable 70.5°F (21.4°C) to a moderately hot 78.4°F (25.8°C). San Jose's June nights cool down significantly from the day's heat, to an average low-temperature of 53.2°F (11.8°C).

Humidity

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

Rainfall

The months with the least rainfall are June through August Rain falls for 1.2 days and accumulates 0.04" (1mm) of rain.

Daylight

With an average of 14h and 42min of daylight, June has the longest days of the year in San Jose, California.
On the first day of June, sunrise is at 5:48 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:32 pm PDT.

Sunshine

The average sunshine in June in San Jose is 11.8h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 6 in June suggests the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What is the average June temperature in San Jose?

In San Jose, in June, the average high-temperature is 78.4°F (25.8°C), and the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in June in San Jose?

In June, the average relative humidity in San Jose, California, is 61%.

What is the driest month in San Jose?

The months with the least rainfall in San Jose are June through August Rain falls for 1.2 days and accumulates 0.04" (1mm) of rain.

How many days does it rain in June in San Jose?

In June, the rain falls for 1.2 days. Throughout June, 0.04" (1mm) of precipitation is accumulated.

When are the longest days in San Jose?

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

What is the average length of the day in June in San Jose?

The average day length in June is 14h and 41min.

When are sunrise and sunset in June in San Jose?

On the first day of June in San Jose, California, sunrise is at 5:48 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:32 pm PDT.

How long on average sun shines in June in San Jose?

In June, the average sunshine duration is 11.8h.

What are the months with the highest UV index in San Jose?

The months with the highest UV index in San Jose are June through August, with an average maximum UV index of 6.

What is the UV index intensity in June in San Jose?

The average daily maximum UV index in June in San Jose, California, is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
San Jose, CA

Average temperature in June - San Jose, CA
  • Average high temperature in June: 78.4°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (56.5°F).

  • Average low temperature in June: 53.2°F

The month with the highest average low temperature is August (56.5°F).
The coldest month (with the lowest average low temperature) is December (43°F).

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Average pressure in June
San Jose, CA

Average pressure in June - San Jose, CA
  • Average pressure in June: 29.92"Hg

The month with the highest atmospheric pressure is January (30.13"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
San Jose, CA

Average wind speed in June - San Jose, CA
  • Average wind speed in June: 5.5mph

The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest months (with the lowest average wind speed) are September and October (4.4mph).

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Average humidity in June
San Jose, CA

Average humidity in June - San Jose, CA
  • Average humidity in June: 61%

The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July and September (60%).

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Average rainfall in June
San Jose, CA

Average rainfall in June - San Jose, CA
  • Average rainfall in June: 0.04"

The wettest month (with the highest rainfall) is March (0.83").
The driest months (with the least rainfall) are June, July and August (0.04").

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Average rainfall days in June
San Jose, CA

Average rainfall days in June - San Jose, CA
  • Average rainfall days in June: 1.2 days

The month with the highest number of rainy days is March (9.8 days).
The month with the least rainy days is August (0.4 days).

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Average daylight in June /
Average sunshine in June
San Jose, CA

Average daylight in June / Average sunshine in June - San Jose, 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
San Jose, CA

Average sunshine days in June - San Jose, CA
  • Average sunshine days in June: 28.2 days

The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is March (19.5 days).

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Average UV index in June
San Jose, CA

Average UV index in June - San Jose, 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
San Jose, CA

Average cloud cover in June - San Jose, CA
  • Average cloud cover in June: 11

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 6).

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Average visibility in June
San Jose, CA

Average visibility in June - San Jose, 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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San Jose, California, USA

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