worldweather33°Cexceptionally warm
usually 25°C–29°C
warmer than 98% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: typical
Weather in Barcelona - 14-day forecast
Detailed weather forecast for Barcelona, Spain: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Barcelona
today☁️
33°💧 7.2 mm
Sun🌤️
33°💧 0.2 mm
Mon🌤️
29°💧 0.8 mm
Tue☀️
30°💧 0.2 mm
Wed🌧️
23°💧 12.7 mm
Thu☁️
28°💧 1 mm
Fri🌧️
25°💧 0.3 mm
Sat🌤️
26°💧 2.9 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Saturday 5 Sept in Barcelona, the forecast high is 33°C. Typical daytime temperatures at this time of year range from 25°C to 29°C, so it will be exceptionally warm. It is warmer than 98% of similar days.
33°Cexceptionally warm
usually 25°C–29°C
warmer than 97% of similar days
night: exceptionally warm
rain: typical rainfall
wind: typical
29°Cwarmer than usual
usually 25°C–29°C
warmer than 78% of similar days
night: exceptionally warm
rain: typical rainfall
wind: lighter than usual
30°Cexceptionally warm
usually 25°C–29°C
warmer than 92% of similar days
night: exceptionally warm
rain: typical rainfall
wind: typical
23°Cexceptionally cool
usually 25°C–29°C
cooler than 93% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: typical
28°Cnear normal
usually 25°C–29°C
night: exceptionally warm
rain: more rain than usual
wind: stronger than usual
25°Ccooler than usual
usually 24°C–29°C
cooler than 77% of similar days
night: exceptionally warm
rain: typical rainfall
wind: typical
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 27°C by day. The coolest year was 1989 (24°C) and the warmest was 2022 (31°C). The current forecast averages 29°C - higher than in 73% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
Weather warnings - Barcelona
No active weather warnings for Barcelona (region: Litoral de Barcelona). The national weather service is not forecasting dangerous conditions.
14-day forecast - Barcelona
Barcelona 30 & 45-day weather - long-range outlook
Next 16 days · forecast
26°
around 25° at night · days with rain: 7
Weeks 3-4 · avg for September
26°
around 19° at night · rain chance 39%
Weeks 5-7 · avg for October
23°
around 16° at night · rain chance 36%
The 30 & 45-day outlook for Barcelona: the next 16 days are a numerical forecast updated daily - on average 26° by day and 25° at night. Further out we rely on multi-year climate averages: around 26° in September, and about 23° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Barcelona
Saturday5 September 2026
☁️33°broken clouds
Sunday6 September 2026
🌤️33°scattered clouds
Monday7 September 2026
🌤️29°scattered clouds
Tuesday8 September 2026
☀️30°clear sky
Wednesday9 September 2026
🌧️23°moderate rain
Thursday10 September 2026
☁️28°broken clouds
Friday11 September 2026
🌧️25°light rain
Saturday12 September 2026
🌤️26°a few clouds
Sunday13 September 2026
☁️23°broken clouds
Monday14 September 2026
🌧️25°light rain
Tuesday15 September 2026
🌧️25°light rain
Wednesday16 September 2026
🌧️20°light rain
Thursday17 September 2026
🌧️23°light rain
Friday18 September 2026
🌧️23°light rain
Saturday19 September 2026
☀️25°clear sky
Sunday20 September 2026
🌤️24°a few clouds
UV index in Barcelona - is it safe to sunbathe?
Today the UV index in Barcelona is 7 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.
Pollen in Barcelona - info for allergy sufferers
Today mugwort pollen is highest in Barcelona - about 7 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.
Sea temperature - Barcelona
Water today
27°C
Week avg
27°C
Waves today
0.2 m
How's the water?
very warm
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Air quality and smog in Barcelona
Air quality in Barcelona is currently good. Fine particulate PM2.5: 14.2 µg/m³, PM10: 29.6 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Barcelona | 14.2 | 29.6 | good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 03:00).
Barcelona weather through the year
Upcoming public holidays in Spain: National Day of Spain — 12 October · All Saints Day — 1 November · Constitution Day — 6 December.
Nearby and related places
FAQ - Barcelona weather
What is the weather like in Barcelona today?
Today it is about 33° during the day and 29° at night, broken clouds.
How far ahead can I check the forecast for Barcelona?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.