5-day weather forecast Barcelona Sep 25, 2026

27°23° · Sunny

Weather forecast Barcelona tomorrow Sep 25, 2026: sunny, temperature from 23 °C to 27 °C.

Precipitation probability 12%. Wind up to 4.31 m/s (gusts 7.61 m/s). Air humidity 37–54%, atmospheric pressure 763–765 mm Hg, UV index up to 5.5.

Sunrise 07:41
Sunset 19:43
Full Moon100% illuminated
Moonrise 19:06 · Moonset 06:25
Chart
Table

Forecast from 23 °C to 27 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)252524242424242323242627272727272726252524242424
Precipitation (mm/hr)000000000000000000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)98555556435125808560618310061283462605555
Rain chance (%)12622274228855811623662223

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)21.891.891.89221.891.811.51.110.391.192.613.6944.314.113.613.312.811.810.890.50.39
Wind gust (m/s)2.222.192.112.222.392.192.2221.531.420.724.197.616.694.224.925.114.723.893.19210.720.61
Wind direction (°)SW 227°WSW 250°WSW 258°W 264°W 280°WNW 282°WNW 293°WNW 302°WNW 301°WNW 301°NNW 334°ESE 112°ESE 116°ESE 113°ESE 113°ESE 110°ESE 113°ESE 119°ESE 112°ESE 110°ESE 121°SE 139°S 181°S 176°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)525353535353525148444037384649464042475052525354

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)764764764764764764764763764764764764764764764764764764764764764764765765

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index0000000000.31.22.545.25.54.93.62.10.90.20000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)9.69.810.911.711.711.61212.213.91513.512.811.710.510.19.89.18.58.69.410.511.712.613.7
PM10 (µg/m³)16.416.818.417.917.917.517.319.12222.319.317.416.616.717.215.614.313.714.214.91516.819.220.4
Ozone (O₃) (µg/m³)545147425045402922233650637185100102100948373544231
NO₂ (µg/m³)34.736.332.530.829.728.228.838.748.752.548.237.534.329.824.218.614.313.718.732.537.748.862.571.5
SO₂ (µg/m³)2.92.933.33.43.43.43.64.24.54.24.24.54.13.52.82.422.12.53.43.75.26.2
CO (µg/m³)173176176176174173173184207224206200187184177168162156158167177181184200

Barcelona on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.