5-day weather forecast Barcelona 21-03-2026

Weather forecast Barcelona Saturday 21 March 21.03.2026: sunny, temperature from 10 °C to 15 °C.

Precipitation probability 79%. Wind up to 5 m/s (gusts 6.72 m/s). Air humidity 51–69%, atmospheric pressure 757–758 mm Hg, UV index up to 4.

Sunrise 07:01
Sunset 19:00

Chart

Table

Type of temperature:

°C

°F

← Fri, 20 Mar

Sat, 21 Mar, 2026

Forecast from 10 °C to 15 °C and precipitation

Cloud cover

Wind speed and direction

Air humidity

Atmospheric pressure

Ultraviolet index

← Fri, 20 Mar

Sat, 21 Mar, 2026

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.

Learn more about our methodology →