June weather forecast
San Francisco, CA

A beautiful dusk view of the Golden Gate Bridge in San Francisco, California
A beautiful dusk view of the Golden Gate Bridge in San Francisco, California

Weather in June

The first month of the summer, June, is an agreeable month in San Francisco, California, with an average temperature varying between 70.5°F (21.4°C) and 53.8°F (12.1°C).

Temperature

In San Francisco, the average high-temperature in June is essentially the same as in May - a pleasant 70.5°F (21.4°C). In June, the average low-temperature is 53.8°F (12.1°C).

Humidity

In June, the average relative humidity is 71%.

Rainfall

In San Francisco, it is raining for 1.9 days, with typically 0.12" (3mm) of accumulated precipitation. Throughout the year, there are 58.6 rainfall days, and 6.46" (164mm) of precipitation is accumulated.

Ocean temperature

April through June, with an average ocean temperature of 53.1°F (11.7°C), are months with the coldest seawater.
Note: Swimming in 53.1°F (11.7°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

June has the longest days of the year in San Francisco, with an average of 14h and 44min of daylight.
On the first day of the month, sunrise is at 5:49 am and sunset at 8:25 pm. On the last day of June, sunrise is at 5:51 am and sunset at 8:35 pm PDT.

Sunshine

The average sunshine in June in San Francisco is 11.6h.

UV index

The months with the highest UV index in San Francisco are April, June through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 5 in June transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Francisco?

In San Francisco, California, in June, the average high-temperature is 70.5°F (21.4°C), and the average low-temperature is 53.8°F (12.1°C).

What is the average humidity in June in San Francisco?

The average relative humidity in June in San Francisco is 71%.

How much does it rain in San Francisco in June?

In San Francisco, in June, during 1.9 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

When is the ocean coldest in San Francisco?

April through June, with an average ocean temperature of 53.1°F (11.7°C), are months with the coldest seawater in San Francisco.

What is the ocean temperature in June in San Francisco?

In San Francisco, the average seawater temperature in June is 53.1°F (11.7°C). Swimming in 53.1°F (11.7°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

When are the longest days in San Francisco?

June has the longest days of the year in San Francisco, California, with an average of 14h and 44min of daylight.

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

In San Francisco, California, the average day length in June is 14h and 44min.

When is the sunrise / sunset in June in San Francisco?

On the first day of June, sunrise is at 5:49 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:35 pm PDT.

How many hours of sunshine does San Francisco have in June?

In San Francisco, California, the average sunshine duration in June is 11.6h.

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

April, June through September, with an average maximum UV index of 5, are months with the highest UV index in San Francisco.

What is the UV index reading in June in San Francisco?

The average daily maximum UV index in June in San Francisco, California, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
San Francisco, CA

Average temperature in June - San Francisco, CA
  • Average high temperature in June: 70.5°F

The warmest month (with the highest average high temperature) is September (73.2°F).
The month with the lowest average high temperature is December (55.8°F).

  • Average low temperature in June: 53.8°F

The month with the highest average low temperature is September (56.7°F).
The coldest months (with the lowest average low temperature) are January and December (45.9°F).

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Average pressure in June
San Francisco, CA

Average pressure in June - San Francisco, 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 Francisco, CA

Average wind speed in June - San Francisco, CA
  • Average wind speed in June: 7.2mph

The windiest month (with the highest average wind speed) is May (7.6mph).
The calmest month (with the lowest average wind speed) is November (5.5mph).

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Average humidity in June
San Francisco, CA

Average humidity in June - San Francisco, CA
  • Average humidity in June: 71%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in June
San Francisco, CA

Average rainfall in June - San Francisco, CA
  • Average rainfall in June: 0.12"

The wettest month (with the highest rainfall) is February (1.38").
The driest months (with the least rainfall) are July, August and September (0.08").

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Average rainfall days in June
San Francisco, CA

Average rainfall days in June - San Francisco, CA
  • Average rainfall days in June: 1.9 days

The month with the highest number of rainy days is March (9.3 days).
The month with the least rainy days is June (1.9 days).

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Average sea temperature in June
San Francisco, CA

Average sea temperature in June - San Francisco, CA
  • Average sea temperature in June: 53°F

The best month for swimming (with the highest average sea temperature) is September (57.3°F).
The coldest months (with the lowest average sea temperature) are April and June (53°F).

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

Average daylight in June / Average sunshine in June - San Francisco, CA
  • Average daylight in June: 14h and 44min

The month with the longest days is June (Average daylight: 14h and 44min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in June: 11h and 36min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in June
San Francisco, CA

Average sunshine days in June - San Francisco, CA
  • Average sunshine days in June: 25.5 days

The month with the most sunshine days is October (25.8 days).
The month with the least sunshine days is March (20.8 days).

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Average UV index in June
San Francisco, CA

Average UV index in June - San Francisco, CA
  • Average UV index in June: 5

The months with the highest UV index are April, June, July, August and September (UV index 5).
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 Francisco, CA

Average cloud cover in June - San Francisco, CA
  • Average cloud cover in June: 16

The month with the most cloud cover is March (Cloud cover 36).
The months with the least cloud cover are July and September (Cloud cover 14).

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Average visibility in June
San Francisco, CA

Average visibility in June - San Francisco, 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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