San Sebastián weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Good
Best time to visit: May – October
What is the weather like in San Sebastián in July?
In July, San Sebastián is warm: daytime highs average 22 °C, and nights cool down to about 17 °C. The sea averages 21.5 °C – refreshing for a swim. The sun shines for around 7 hours a day. Rain is frequent, with about 13 rainy days and 73 mm in total. All in all, July is a good month for a holiday in San Sebastián.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 15 h 7 min06:40 – 21:47
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 4 daysdew point 18 °C or more
- Wind
- 15 km/haverage daily peak
- Cloud cover
- 60 %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 %60 %
- Few rainy daysweight 30 %39 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in July
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
San Sebastián in July: quick answers
Is San Sebastián hot in July?
Warm rather than hot: in July, daytime highs in San Sebastián average 22 °C and nights cool to about 17 °C.
Can you swim in San Sebastián in July?
Yes. In July the sea averages 21.5 °C – refreshing for a swim.
Does it rain much in San Sebastián in July?
Rain is frequent, with about 13 rainy days and 73 mm in total.
San Sebastián month by month
The whole year in San SebastiánAll destinations: SpainWhere to go in JulySea temperature in July
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)