San Sebastián 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: May – October
What is the weather like in San Sebastián in June?
In June, San Sebastián is mild: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 19.4 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7 hours a day. Rain is frequent, with about 13 rainy days and 90 mm in total. All in all, June is a good month for a holiday in San Sebastián.
June compared
How the weather changes from May to July. Tap a month to open it.
More details for June
- Daylight
- 15 h 22 min06:27 – 21:49
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or more
- Wind
- 16 km/haverage daily peak
- Cloud cover
- 64 %on average
- Hot days
- 1 day30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+2Europe/Madrid
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %58 %
- Few rainy daysweight 30 %36 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in June
- Wetsuit for longer swims
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
San Sebastián in June: quick answers
Is San Sebastián hot in June?
No. In June, San Sebastián is mild: daytime highs average 21 °C and nights drop to about 15 °C.
Can you swim in San Sebastián in June?
Only if you don't mind cold water: in June the sea averages just 19.4 °C. Comfortable swimming is possible from July to September.
Does it rain much in San Sebastián in June?
Rain is frequent, with about 13 rainy days and 90 mm in total.
San Sebastián month by month
The whole year in San SebastiánAll destinations: SpainWhere 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)