June weather forecast and climate
San Jose, CA

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

June, the first month of the summer, in San Jose, is a warm month, with average temperature ranging between max 78.4°F (25.8°C) and min 53.2°F (11.8°C).

Temperature

In June, the average high-temperature slightly increases, from a pleasant 70.5°F (21.4°C) in May, to a warm 78.4°F (25.8°C). The average low-temperature, in San Jose, is 53.2°F (11.8°C).

Humidity

The average relative humidity in June is 61%.

Rainfall

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 14.7h of daylight, June has the longest days of the year.

Sunshine

In June, the average sunshine 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 in San Jose, California. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: In June, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in June 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?

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

How much does it rain in San Jose in June?

In San Jose, California, in June, during 1.2 rainfall days, 0.04" (1mm) of precipitation is typically accumulated.

What is the driest month in San Jose?

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

When are the longest days in San Jose?

With an average of 14.7h of daylight, June has the longest days of the year in San Jose.

How many hours of daylight does San Jose have in June?

The average length of the day in June in San Jose is 14.7h.

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

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

What is the month with the highest UV index in San Jose?

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

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

In June, the average daily maximum UV index in San Jose is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.

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"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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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%).
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: 14.7h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in June: 11.8h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6h).

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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

Months with the highest UV index are June, July and August (UV index 6).
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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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