BarcelonaPhoto: JJxFile · CC BY-SA 4.0Spain · Europe
Best time to visit Barcelona
Barcelona works almost year-round: mild winters for sightseeing, warm summers with city beaches.
Climate decision
Best travel months for Barcelona
Joint highest scores
Next highest scores
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
March · Wet days
10.4 days/month
1991–2025: 7 days/month
+3.4 days/month · higher
August · Mean daily maximum
31.6 °C
1991–2025: 30.1 °C
+1.5 °C · higher
March · Monthly precipitation
64.7 mm/month
1991–2025: 42.4 mm/month
+22.3 mm/month · higher
August · Sea temperature
26.8 °C
1991–2025: 25.5 °C
+1.3 °C · higher
August: 113/155 days at or above 30 °C; highest single value 38.8 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · Coast and sea
Barcelona: the swimming season follows two curves
Average daily highs vary by 17.4 °C through the year, while the sea varies by 12.5 °C. Air and water temperature should therefore be considered separately.
The practical difference
The month with the highest daytime temperature and the month with the warmest sea need not define the same travel window. Rain and sunshine help resolve the trade-off.
Warmest sea
August · 25.5 °C
Highest average daily high
July and August · 30.1 °C
Fewest rainy days
February · 4.9
Most sunshine
July · 8.9 h
For your trip planning
Barcelona: city month or swimming month?
May and September are not interchangeable
September is warmer and the sea is much more suitable for swimming than in May, but it also brings more rainy days and rainfall. May can suit a city trip; September is stronger for swimming. The rain balance prevents a universal winner.
Check the beach flag on the day
Warm monthly figures do not establish safe swimming conditions on your travel day. Follow local flags and instructions; a red flag means no swimming. Use sea temperature to choose travel dates, not as permission to enter the water.
Background: Generalitat de Catalunya · Beach flags
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| January | 13 | 4 | 5 | 35 | 2.5 | 76 | 2.4 | 14 | 46 |
| February | 14 | 4 | 5 | 27 | 3.7 | 73 | 2.4 | 13 | 51 |
| March | 17 | 6 | 7 | 42 | 5.2 | 71 | 2.5 | 13 | 58 |
| April | 19 | 9 | 8 | 46 | 6.7 | 68 | 2.5 | 15 | 66 |
| May | 23 | 13 | 8 | 49 | 7.9 | 66 | 2.3 | 17 | 77 |
| June | 27 | 17 | 6 | 33 | 8.7 | 63 | 2.3 | 21 | 86 |
| July | 30 | 20 | 5 | 25 | 8.9 | 62 | 2.3 | 24 | 84 |
| August | 30 | 20 | 7 | 40 | 7.7 | 64 | 2.2 | 25 | 82 |
| September | 26 | 17 | 9 | 66 | 5.9 | 69 | 2.3 | 24 | 86 |
| October | 22 | 13 | 9 | 67 | 4.1 | 74 | 2.3 | 21 | 78 |
| November | 17 | 8 | 7 | 50 | 2.8 | 75 | 2.4 | 17 | 58 |
| December | 13 | 5 | 5 | 37 | 2.2 | 77 | 2.4 | 15 | 48 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
Find a place to stay
Where to stay in Barcelona
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Useful next decisions
Similar destinations
The number is the overall climate score, not a similarity score.
Frequently asked questions
When is the best time to visit Barcelona?
The strongest climate months are June, July, August, September. Values are historical averages, not a forecast.
Which month has the highest average daily maximum temperature in Barcelona?
Average daily maximum temperatures in Barcelona are practically tied in July and August at around 30 °C.
When is the sea warmest at Barcelona?
In August, at around 25 °C.