5-day weather forecast Barcelona 21-05-2026

Weather forecast Barcelona Thursday, May 21 21.05.2026: sunny, temperature from 19 °C to 23 °C.

No precipitation expected. Wind up to 3.31 m/s (gusts 4.14 m/s). Air humidity 53–65%, atmospheric pressure 768–770 mm Hg, UV index up to 8.8.

Sunrise 06:27
Sunset 21:09

Waxing Crescent24% illuminated
Moonrise 11:00 · Moonset 01:29

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← Wed, May 20

Thu, May 21, 2026

Fri, May 22 →

Forecast from 19 °C to 23 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	20	20	20	19	19	19	19	19	20	21	21	22	22	22	23	23	23	23	23	23	22	21	21	20
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	11	10	9	9	8	8	8	8	8	7	6	5	5	4	3	2	0	0	0	2	3	4	5	5
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	1.89	2	2.11	2.31	2.19	2.11	1.81	1.61	1	0.61	1.39	2.31	3	3.31	3.31	3.11	2.89	2.5	2.39	2.11	1.61	1.31	1	0.5
Wind gust (m/s)	3.03	3.36	3.67	4.14	4.14	4.11	3.64	3.17	1.67	0.83	1.86	2.92	3.64	3.86	3.81	3.58	3.33	2.89	2.81	2.56	2.08	1.81	1.44	0.75
Wind direction (°)	WSW 252°	W 259°	W 265°	W 272°	WNW 284°	WNW 301°	NW 305°	WNW 300°	NW 314°	NE 36°	E 86°	ESE 104°	ESE 109°	ESE 115°	ESE 122°	SE 132°	SE 141°	SSE 150°	SSE 154°	SSE 154°	SE 144°	SE 132°	ESE 110°	ESE 108°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	65	65	65	64	64	64	64	65	63	61	59	59	58	57	55	54	53	53	53	55	58	61	63	64

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	770	769	769	769	769	769	768	769	769	770	770	770	770	770	770	769	769	769	768	768	769	769	770	770

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0.5	1.4	2.9	5	7	8.3	8.8	6	6	6	6	6	6	6	0	0

← Wed, May 20

Thu, May 21, 2026

Fri, May 22 →

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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 →