5-day weather forecast Barcelona 04-08-2026

Weather forecast Barcelona tomorrow 04.08.2026: sunny, temperature from 26 °C to 29 °C.

Precipitation probability 8%. Wind up to 4.61 m/s (gusts 5.28 m/s). Air humidity 63–77%, atmospheric pressure 758–761 mm Hg, UV index up to 7.

Weather Alerts

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ModerateAug 2, 07:18 PM — Aug 4, 09:59 PMTranslate with Google

Moderate rain warning. Prelitoral de Barcelona

Moderate rain warning

One-hour accumulated precipitation: 20 mm.

Be aware, keep up to date with the latest weather forecast. Moderate damages to people and properties may occur, especially to those vulnerable or in exposed areas.

ModerateAug 2, 07:18 PM — Aug 4, 09:59 PMTranslate with Google

Moderate thunderstorm warning. Prelitoral de Barcelona

Moderate thunderstorm warning

Be aware, keep up to date with the latest weather forecast. Moderate damages to people and properties may occur, especially to those vulnerable or in exposed areas.

ModerateAug 3, 11:19 AM — Aug 4, 09:59 PMTranslate with Google

Moderate rain warning. Prelitoral de Barcelona

Moderate rain warning

One-hour accumulated precipitation: 20 mm.

Be aware, keep up to date with the latest weather forecast. Moderate damages to people and properties may occur, especially to those vulnerable or in exposed areas.

ModerateAug 3, 11:19 AM — Aug 4, 09:59 PMTranslate with Google

Moderate thunderstorm warning. Prelitoral de Barcelona

Moderate thunderstorm warning

Be aware, keep up to date with the latest weather forecast. Moderate damages to people and properties may occur, especially to those vulnerable or in exposed areas.

ModerateAug 2, 07:18 PM — Aug 4, 09:59 PMTranslate with Google

Moderate rain warning. Depresión central de Barcelona

Moderate rain warning

One-hour accumulated precipitation: 20 mm.

Be aware, keep up to date with the latest weather forecast. Moderate damages to people and properties may occur, especially to those vulnerable or in exposed areas.

5 days at a glance — tap a day to open it

Sunrise 06:49
Sunset 21:05

Last Quarter55% illuminated
Moonrise 23:35 · Moonset 12:47

Chart

Tue, Aug 4, 2026

Forecast from 26 °C to 29 °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)	28	28	27	27	27	26	26	26	26	27	28	28	29	29	29	29	29	29	29	28	28	28	28	28
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 (%)	25	14	13	8	6	5	4	4	4	4	5	5	6	5	4	2	3	5	7	6	6	7	6	4
Rain chance (%)	8	7	7	7	8	8	8	8	7	7	6	5	4	4	4	4	4	5	5	5	6	6	5	5

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)	2.11	1.11	1.39	2.11	3	3.5	3.39	2.89	1.89	1.39	1.61	2.19	2.61	3.19	3.5	3.81	4.31	3.89	3.39	4	4.61	3	1	0.5
Wind gust (m/s)	2.78	1.44	1.83	2.69	3.81	4.42	4.28	3.75	2.33	1.64	1.83	2.53	3	3.67	4.03	4.36	4.94	4.5	3.92	4.61	5.28	3.64	1.28	0.67
Wind direction (°)	E 86°	E 98°	ENE 59°	E 85°	ENE 78°	ENE 71°	ENE 61°	ENE 61°	ENE 75°	ESE 105°	ESE 111°	ESE 107°	ESE 116°	SE 126°	SE 130°	SE 127°	SE 126°	SE 131°	ESE 119°	ESE 105°	E 86°	E 86°	E 92°	WSW 256°

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 (%)	72	74	73	74	77	77	76	76	75	73	70	67	64	63	63	64	65	66	67	69	70	69	68	67

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)	758	758	759	759	759	759	759	760	760	761	761	761	761	761	761	761	761	761	761	761	761	761	761	761

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	0.3	1.1	2.5	4.1	5.6	5.9	6.5	7	5.9	3.9	2	0.8	0.2	0	0	0

Air quality & pollen

Air quality
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
PM2.5 (µg/m³)	13.3	14.7	13.9	13.7	12.7	13.4	13.9	13.9	14.6	12.7	9.8	9.1	9.3	9.6	9.8	10.3	10.9	10.9	10.8	10.7	10.7	10.9	11.8	12.2
PM10 (µg/m³)	28.6	29.7	25.4	28	27.8	25.7	26.6	28.9	31.2	24.1	16.8	14.3	12.9	14	14.8	15.6	18.5	20.5	20.4	20.5	20.9	21.5	22.7	23.1
Ozone (O₃) (µg/m³)	51	50	47	53	61	59	54	54	52	61	70	79	85	93	96	95	94	95	92	88	85	79	73	66
NO₂ (µg/m³)	43.1	42.1	36.9	28.1	20.6	19.7	21.2	24.4	28.2	20.5	15.4	10.5	8.4	8.1	8	8.5	9	9.8	12.2	16.2	17.7	21.5	26.8	34.1
SO₂ (µg/m³)	3.7	4	3.5	2.8	2.2	2.2	2.3	2.4	2.6	2.2	1.7	1.1	1	0.9	0.9	1	1	1.1	1.4	1.6	1.7	2	2.6	2.9
CO (µg/m³)	147	149	153	148	145	144	143	151	167	164	154	148	145	142	141	140	139	139	141	144	148	151	155	157

Tue, Aug 4, 2026

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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.

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