San Francisco weather in June
Temperature, sea and sunshine in June: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in June
Excellent
Best time to visit: April – October
What is the weather like in San Francisco in June?
In June, San Francisco is warm: daytime highs average 21 °C, and nights cool down to about 12 °C. The sea averages 12.3 °C – swimming is only for the hardy. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, June is an excellent month for a holiday in San Francisco.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 14 h 46 min05:47 – 20:33
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 19 km/haverage daily peak
- Cloud cover
- 36 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC−7America/Los_Angeles
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in June
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
San Francisco in June: quick answers
Is San Francisco hot in June?
Warm rather than hot: in June, daytime highs in San Francisco average 21 °C and nights cool to about 12 °C.
Can you swim in San Francisco in June?
Only if you don't mind cold water: in June the sea averages just 12.3 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in San Francisco in June?
It hardly ever rains.
San Francisco month by month
The whole year in San FranciscoAll destinations: USAWhere to go in JuneSea temperature in June
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)