Your October weather guide
WarmWeather in Barcelona in October
October is a good time for Barcelona if you want comfortable weather for exploring the city rather than dependable beach heat. Daytime highs average 20.5°C, nights fall to around 14°C, and about 10 days have rain. For a UK traveller, the appeal is milder outdoor weather without much risk of excessive heat. The catch is that sunshine is not guaranteed, so go with layers and flexible plans rather than expecting a reliably dry, sunny break.
Long-term climate averages for Barcelona, not a forecast · 1991-2020
Barcelona, month by month
Your snapshot
At a glance
The useful details for Barcelona.
- Average daytime high
- 20.5°C
- 9 in 10 days stay below 24°C
- Average night-time low
- 14.3°C
- coldest 10% of nights: 11°C or lower
- Compared with London
- +5.9°C
- London averages 14.6°C in October
- Sea temperature
- 21.0°C
- year to year: 20°C to 22°C
- Sunshine per day (est.)
- 4.8h
- 44% of 10.9 h of daylight
- Rainy days (1 mm+)
- 10
- 92 mm over the month
- Humidity
- 81%
- Days over 25°C
- 4%
- none over 30°C
- Record high 1991-2020
- 28.7°C
- 1997-10-10
- Record low 1991-2020
- 5.3°C
- 2008-10-30
- Flight from London
- ≈ 2 h 6 min
- 1100 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How October compares
October is the 6th warmest month of the year in Barcelona and ranks 106th of 134 destinations we compare for October - see where else is hot in October. Within Spain it is 84th of 87 (Spain in October). Against London's average high of 14.6°C in October, Barcelona is 5.9°C warmer by day and 5.9°C warmer at night.
Daytime and night-time in October
The typical October day in Barcelona peaks at 20.5°C, but that is an average: the warmest 10% of days reach 23.7°C or more. Roughly 1 in 29 days top 25°C. Nights average 14.3°C; one night in ten drops to 11.0°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest October day here reached 28.7°C (1997-10-10) and the coldest night 5.3°C (2008-10-30).
Rain in October
Wet (more than 8 rainy days): about 10 days with 1 mm or more, 92 mm in total. Year to year it varies a lot - the wettest October was 2018 with 283 mm, the driest 1995 with 20 mm. Humidity averages 81%.
Sea temperature in October
The sea averages 21.0°C - bracing (18-22°c). Depending on the year it ranges from 19.9°C to 22.1°C. For the warmest sea here, come in August (25.5°C).
Sunshine and daylight
Around 4.8 hours of sunshine a day (estimated from cloud cover), 10.9 hours of daylight: the sun rises about 08:03 and sets about 19:11 local time in mid-October. Average cloud cover is 56%.
Is October a good time to visit Barcelona?
October is not the strongest month here: warm days and frequent rain. The best months for Barcelona on our scoring are July, June, August; months averaging 25°C or more: Jul, Aug.
Warm enough for walking, cooler after dark
The daytime warmth suits travellers who prefer being out and about without planning everything around the heat. A light top may be enough when the sun is out, but keep a jumper or jacket handy for shade and later in the day. The warmer days reach around 24°C or more, so there is still scope for a warm afternoon outdoors. Evenings need a different approach: the colder nights fall to 11°C or below, making an extra layer useful if you plan to stay out. Pack for a mild autumn city break, not a summer holiday, and you should have more options as conditions change.
Plan around rain rather than relying on sunshine
Rain is the main compromise in October. With about 10 rainy days, it makes sense to keep outdoor plans movable and have something indoors in reserve. A light waterproof jacket and shoes you are comfortable wearing in wet weather are more useful than a suitcase packed only for sunshine. There are about 4.8 hours of sunshine within 10.9 hours of daylight, so daylight should not be mistaken for clear skies. Use sunny spells for the time you most want to spend outside, and check the forecast before committing to a weather-dependent day. October suits flexibility better than a holiday built around guaranteed sun.
A little perspective
Barcelona through the year
October is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 12.5°C | 5.1°C | 13.5°C | 4.8 | 41 | 6 | 0% |
| February | 13.2°C | 5.4°C | 12.9°C | 5.4 | 35 | 6 | 0% |
| March | 15.5°C | 7.4°C | 13.2°C | 6.0 | 41 | 7 | 0% |
| April | 17.3°C | 9.6°C | 14.3°C | 6.5 | 54 | 9 | 0% |
| May | 20.6°C | 13.2°C | 17.0°C | 6.9 | 46 | 7 | 7% |
| Junebest | 24.6°C | 17.2°C | 20.7°C | 8.9 | 36 | 6 | 44% |
| Julybest | 27.2°C | 20.2°C | 24.0°C | 10.0 | 23 | 5 | 83% |
| Augustbest | 27.4°C | 20.8°C | 25.5°C | 8.3 | 40 | 7 | 85% |
| September | 24.0°C | 17.8°C | 24.0°C | 6.1 | 79 | 11 | 36% |
| OctoberSelected | 20.5°C | 14.3°C | 21.0°C | 4.8 | 92 | 10 | 4% |
| November | 16.0°C | 9.4°C | 17.4°C | 4.6 | 61 | 8 | 0% |
| December | 13.1°C | 6.2°C | 14.9°C | 4.5 | 42 | 6 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in October
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Barcelona in October FAQs
Plain answers, grounded in the averages.
Is Barcelona hot in October?
Barcelona is warm in October: the average daytime high is 20.5°C and nights average 14.3°C. Roughly 1 in 29 October days reach 25°C.
Can you swim in the sea in Barcelona in October?
The sea around Barcelona averages 21.0°C in October, which is bracing - fine for a quick dip, cool for long swims. Between 1991 and 2020 it ranged from 20°C to 22°C depending on the year.
How much does it rain in Barcelona in October?
Barcelona sees about 10 rainy days (1 mm or more) and 92 mm of rain in a typical October. The wettest October between 1991 and 2020 was 2018 (283 mm) and the driest was 1995 (20 mm).
How sunny is Barcelona in October?
Barcelona gets around 4.8 hours of sunshine a day in October out of 10.9 hours of daylight (estimated from average cloud cover).
How does Barcelona compare with the UK in October?
Barcelona is on average 5.9°C warmer than London by day in October (20.5°C against 14.6°C).
What is the hottest October on record in Barcelona?
Between 1991 and 2020 the hottest October day in Barcelona reached 28.7°C on 1997-10-10, and the coldest night dropped to 5.3°C on 2008-10-30.
Is the sea warm enough for swimming in October?
The sea averages 21°C, which is bracing rather than comfortably warm. Swimming may appeal if you do not mind cooler water, but it is not the strongest reason to choose October. The year-to-year range is 20°C to 22°C, so comfort will depend on your tolerance.
How much warmer is Barcelona than London in October?
Barcelona's average daytime high is 20.5°C, compared with London's 14.6°C - a difference of 5.9°C. That makes it a warmer choice for spending time outdoors, though the cooler evenings and risk of rain still call for autumn layers.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Barcelona. Sea temperature from the nearest 5 km sea cell, 2 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C