San Diego 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
Good
Best time to visit: July – September
What is the weather like in San Diego in June?
In June, San Diego is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 18.7 °C – bracing, so a wetsuit helps for longer swims. With around 12 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, June is a good month for a holiday in San Diego.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 14 h 17 min05:40 – 19:57
- UV index
- 11 · extremeclear sky, noon (estimate)
- Muggy days
- 0 daysdew point 18 °C or more
- Wind
- 16 km/haverage daily peak
- Cloud cover
- 38 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC−7America/Los_Angeles
How the score comes together
- Temperatureweight 35 %50 %
- Seaweight 25 %24 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 20 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in June
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
San Diego in June: quick answers
Is San Diego hot in June?
Warm rather than hot: in June, daytime highs in San Diego average 22 °C and nights cool to about 15 °C.
Can you swim in San Diego in June?
Only if you don't mind cold water: in June the sea averages just 18.7 °C. Comfortable swimming is possible from July to September.
Does it rain much in San Diego in June?
It hardly ever rains.
San Diego month by month
The whole year in San DiegoAll destinations: USA
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)