What August feels like in Barcelona
For Barcelona, August is late summer on the calendar. The midday hours are hot; shade and water matter on long walks. Little changes after sunset — nights stay warm, only slightly below the daytime level. The air carries some moisture, so hot spells feel a little sticky.
Rain in Barcelona in August
Most days stay dry; rain arrives about one day in 4. Each rainy day adds about 6.5 mm (0.3 in), a proper wetting rather than a sprinkle. Across the year Barcelona averages about 7.3 mm per rainy day, so August is typical.
Daylight and sunshine in August
On 15 August the sun rises at about 7:00 am and sets around 8:53 pm local time, giving 13 h 53 min of daylight. Days are getting shorter: 1 h 1 min less daylight than in mid-July. About 89% of daylight hours are sunny; in short, skies are mostly clear.
How August compares to the rest of the year
In Barcelona's temperature order, August sits as the 2nd warmest month. It is about as warm as July, with 15 mm more rain. Temperatures keep falling into September. September averages a high of 24.8°C (76.6°F).
Who August suits
- Sightseeing: a good fit — comfortable enough to explore on foot all day.
- Parks & outdoor: less ideal — afternoons are too warm to linger outside.
- Beach: less ideal — too many rainy days.
Tips for visiting Barcelona in August
Sunglasses
Frequent sunshine — sunglasses and a light hat.
Quick questions
How warm is Barcelona in August?
Expect around 28°C (82.4°F) in the afternoon and 21.2°C (70.2°F) at night, which most visitors would call hot.
Does it rain a lot in Barcelona in August?
Not especially. There are about 7 rainy days (45 mm), mostly moderate rain.
What should I wear in Barcelona in August?
Based on the averages: sunglasses. There is little need to change for the evening.
Is August or September better for visiting Barcelona?
On our 12-month climate ranking, September comes out ahead (#7 of 12 vs #9). September is cooler and has more rainy days.