San Sebastián
August
Weather in San Sebastián for August 2025
Your guide to San Sebastián weather in August - trends and predictions
In general, the average temperature in San Sebastián at the beginning of August is 22.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 21.1 °C by the end of August.
Expect significant rainfall in San Sebastián during August, with an average of 16 rainy days.
Is August a good time to visit San Sebastián? check out the best time to travel to San Sebastián page.
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15
Dry days
16
Rainy days
0
Snow days
23°/16°
Temperatures
13 km/h
Avg max wind
78 %
Avg humidity
San Sebastián in August average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2 20° | 3  22° | ||||
| 4 23° | 5 22° | 6  24° | 7 20° | 8 23° | 9 24° | 10 28° |
| 11 34° | 12 23° | 13 19° | 14 18° | 15 23° | 16 22° | 17 22° |
| 18 20° | 19 25° | 20  23° | 21 20° | 22 21° | 23 24° | 24 25° |
| 25 19° | 26 22° | 27  24° | 28 22° | 29  19° | 30 19° | 31 23° |
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Temperatures trend during August in San Sebastián
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Patchy rain possible | 24° /17° | 0.4 mm | 5 | |
| 2 Aug. | Patchy rain possible | 20° /16° | 1.1 mm | 5 | |
| 3 Aug. | Sunny | 22° /14° | 0 mm | 6 | |
| 4 Aug. | Sunny | 23° /16° | 0 mm | 6 | |
| 5 Aug. | Patchy rain possible | 22° /16° | 0 mm | 5 | |
| 6 Aug. | Partly cloudy | 24° /17° | 0.9 mm | 6 | |
| 7 Aug. | Light rain shower | 20° /17° | 4.8 mm | 5 | |
| 8 Aug. | Patchy rain possible | 23° /18° | 0.1 mm | 5 | |
| 9 Aug. | Partly cloudy | 24° /16° | 0 mm | 6 | |
| 10 Aug. | Sunny | 28° /18° | 0.5 mm | 7 | |
| 11 Aug. | Patchy rain possible | 34° /21° | 0 mm | 7 | |
| 12 Aug. | Patchy rain possible | 23° /18° | 1.6 mm | 5 | |
| 13 Aug. | Light rain shower | 19° /17° | 9.4 mm | 4 | |
| 14 Aug. | Light rain shower | 18° /16° | 3.9 mm | 4 | |
| 15 Aug. | Partly cloudy | 23° /15° | 0.1 mm | 6 | |
| 16 Aug. | Sunny | 22° /15° | 0 mm | 6 | |
| 17 Aug. | Light rain shower | 22° /17° | 0.6 mm | 5 | |
| 18 Aug. | Light rain shower | 20° /16° | 7.3 mm | 5 | |
| 19 Aug. | Sunny | 25° /14° | 0 mm | 7 | |
| 20 Aug. | Light drizzle | 23° /15° | 1.9 mm | 5 | |
| 21 Aug. | Patchy rain possible | 20° /15° | 1.3 mm | 5 | |
| 22 Aug. | Partly cloudy | 21° /16° | 0 mm | 6 | |
| 23 Aug. | Sunny | 24° /17° | 0 mm | 6 | |
| 24 Aug. | Light rain shower | 25° /17° | 4.4 mm | 6 | |
| 25 Aug. | Patchy rain possible | 19° /16° | 2.3 mm | 4 | |
| 26 Aug. | Sunny | 22° /11° | 0 mm | 6 | |
| 27 Aug. | Overcast | 24° /15° | 0 mm | 5 | |
| 28 Aug. | Sunny | 22° /16° | 0.2 mm | 6 | |
| 29 Aug. | Moderate or heavy rain shower | 19° /15° | 16.4 mm | 5 | |
| 30 Aug. | Light rain shower | 19° /16° | 6.4 mm | 5 | |
| 31 Aug. | Sunny | 23° /15° | 4.8 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for San Sebastián in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Sebastián forecast closer to your planned date for the most up-to-date weather information.
San Sebastián in August - FAQ
What are the expected maximum and minimum temperatures in San Sebastián during August?
During August, expect a variety of temperatures with highs around 23° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Sebastián during August?
Moderate rainfall is anticipated in San Sebastián during August, with a total of 96.3 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in San Sebastián during August?
The average wind speed in San Sebastián during August is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to San Sebastián in August?
As you prepare for your trip to San Sebastián in August, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in San Sebastián, during August, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Sunglasses: For sun protection
- Sun Hats: Wide-brimmed hats for sun protection in warm weather
- Umbrellas/Raincoats: For rainy days
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