yearsofweather

Barcelona in August:
hot,

Barcelona, Spain · Records from 2006 to 2025. Not a forecast.

Mean high30°Hottest day 37.5° (2023)
Mean low22°Coldest night 16.8° (2020)
Rain days5 days0-13 by year
Rainfall59mmDaylight 14.4 → 13.2 h
Barcelona's 12 months iBest: May, June and October
Trip types Beach Goodwarm seaSightseeing on foot Finehot, mostly dry and muggy
Humidity75%18 muggy days
Clear days11 days2 overcast days
Mean wind8 km/hRarely windy
Sea temperature26.8°25.2-27.4° by year (last 6)
Sunrise / sunset (15th)07:00 / 20:52Daylight 14.4 → 13.2 h

Barcelona in August

In mid-August the Gràcia neighbourhood holds its Festa Major, about a week in which streets compete with elaborate decorations. Many locals are on holiday, and some small shops and restaurants close. The sea is at its warmest and nights are muggy, with the occasional strong storm.

Days averaged 30°C and nights 22°C. Midday was for air conditioning, a cold drink or a long lunch out of the sun. 5 rain days in a typical August: noticeable, but most days stayed dry. August could skip rain entirely: 2 of 20 years had none, while 2006 had 13 rain days.

With 17 days above 30°C on average, most of the month felt like high summer. August 2022 averaged 32.4°C by day, 2.3°C above the 20-year mean.

Date by date i

‹ July August 2027 September ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-7rain on 11% of days31° 23°
8-14rain on 16% of days30° 23°
15-21rain on 14% of days30° 22°
22-28rain on 13% of days30° 22°
29-31rain on 22% of days29° 22°

0-5/206-8/209-11/2012-20/20

1-7rain on 11% of days31° 23°
8-14rain on 16% of days30° 23°
15-21rain on 14% of days30° 22°
22-28rain on 13% of days30° 22°
29-31rain on 22% of days29° 22°
Tap another date to change

20061mm
200739mm
2008none
2009none
2010none
2011none
2012none
20137mm
2014none
20159mm
2016none
20173mm
20189mm
2019none
2020none
2021none
2022none
20235mm
2024none
2025none
Holidays in August (2027)
  • August 15 Assumption Day

1 Local public holiday or break (busier, pricier)

Day by day temperature i

20°26°33°39° 1815222931

Mean high Mean low Coldest to warmest high in 20 years

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
4 d 13 d
2007
2 d 7 d
2008
0 d 1 d
2009
0 d 0 d
2010
1 d 4 d
2011
0 d 0 d
2012
1 d 2 d
2013
1 d 6 d
2014
0 d 5 d
2015
1 d 7 d
2016
0 d 2 d
2017
0 d 4 d
2018
1 d 8 d
2019
0 d 3 d
2020
2 d 4 d
2021
0 d 1 d
2022
1 d 8 d
2023
1 d 5 d
2024
0 d 5 d
2025
1 d 5 d
Years with rain
Tap a date to start, tap another to end. Each cell is that date in one year.
'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
of 20
1
2
3
2
1
3
4
7
3
2
1
2
4
4
4
1
3
4
3
2
3
3
1
0
5
3
4
2
3
5
5
Rain days on trip
42001011010010201101

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2009 had 0 rain days, 2006 had 13.

Barcelona through the year

MonthHighLowRain daysRainfallSea
January 14°6°4 days43mm 14°
February 15°7°4 days30mm 13°
March 17°9°6 days53mm 14°
April 19°11°6 days53mm 15°
MayGood 22°15°5 days42mm 18°
JuneGood 27°19°3 days19mm 23°
July 29°22°2 days28mm 26°
August 30°22°5 days59mm 27°
September 27°19°6 days83mm 25°
OctoberGood 23°15°6 days83mm 23°
November 18°10°5 days43mm 18°
December 15°7°4 days26mm 16°

Common questions

Does it rain a lot in Barcelona in August?

Over the past 20 years August averaged 5 rain days (1 mm or more) out of 31. Individual years ran from 0 in the driest to 13 in the wettest.

What should I wear in Barcelona in August?

Days averaged 30°C and nights 22°C. Pack T-shirts, sunscreen plus a hat, a swimsuit, and insect repellent.

Can you swim in Barcelona in August?

Sea surface temperature averaged 26.8°C in August, comfortable for swimming. Year to year it ranged 25.2-27.4°C. Check local flags for waves and jellyfish on the day.

Is August a good time to visit Barcelona?

On warmth and rain days alone, Barcelona's easiest months were May, June and October. August ranked 8 of 12.

Is Barcelona humid in August?

Mean relative humidity was 75%, with about 18 muggy days (dew point of 20°C or more) in the month.