5-day weather forecast Barcelona Sep 21, 2026
30°Weather forecast Barcelona Monday Sep 21, 2026: sunny, temperature from 22 °C to 30 °C.
Precipitation probability 9%. Wind up to 3.69 m/s (gusts 8.31 m/s). Air humidity 27–50%, atmospheric pressure 765–770 mm Hg, UV index up to 7.
Weather Alerts
Moderate rain warning. Litoral 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 07:37
Sunset 19:50
Sunset 19:50
Waxing Gibbous82% illuminated
Moonrise 17:37 · Moonset 02:14
Moonrise 17:37 · Moonset 02:14
Chart
Table
Mon, Sep 21, 2026
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 24 °C | 1% | 0% | 45% | 770 mm Hg | NW 316° 1 (1) m/s | 0 |
| 01:00 | Clear | 24 °C | 1% | 0% | 45% | 770 mm Hg | NW 316° 1.5 (1.61) m/s | 0 |
| 02:00 | Clear | 24 °C | 1% | 2% | 45% | 769 mm Hg | NNW 333° 1.89 (2.22) m/s | 0 |
| 03:00 | Clear | 24 °C | 2% | 4% | 49% | 769 mm Hg | WNW 297° 1.69 (1.92) m/s | 0 |
| 04:00 | Clear | 24 °C | 2% | 5% | 50% | 768 mm Hg | NW 306° 1.81 (1.92) m/s | 0 |
| 05:00 | Clear | 23 °C | 1% | 5% | 44% | 768 mm Hg | NW 323° 1.81 (1.83) m/s | 0 |
| 06:00 | Clear | 23 °C | 2% | 2% | 49% | 768 mm Hg | NW 314° 1.81 (2) m/s | 0 |
| 07:00 | Clear | 23 °C | 2% | 5% | 48% | 768 mm Hg | NW 315° 1.61 (1.72) m/s | 0 |
| 08:00 |  Cloudy | 22 °C | 7% | 76% | 43% | 768 mm Hg | NW 323° 1.61 (5.61) m/s | 0 |
| 09:00 |  Partly cloudy | 24 °C | 5% | 62% | 42% | 768 mm Hg | NW 309° 1.31 (1.61) m/s | 0.4 |
| 10:00 | Sunny | 25 °C | 1% | 5% | 36% | 768 mm Hg | WNW 283° 1.5 (1.94) m/s | 1.3 |
| 11:00 | Sunny | 26 °C | 1% | 6% | 33% | 768 mm Hg | W 280° 1 (1.42) m/s | 2.8 |
| 12:00 |  Overcast | 29 °C | 9% | 99% | 28% | 767 mm Hg | WSW 250° 1.81 (2.61) m/s | 4.5 |
| 13:00 | Overcast | 30 °C | 9% | 100% | 27% | 767 mm Hg | SSW 212° 2.31 (2.75) m/s | 5.7 |
| 14:00 | Sunny | 29 °C | 1% | 7% | 29% | 767 mm Hg | S 187° 3.11 (3.44) m/s | 6.1 |
| 15:00 | Overcast | 30 °C | 8% | 88% | 30% | 766 mm Hg | S 182° 3.31 (8.31) m/s | 7 |
| 16:00 | Overcast | 30 °C | 9% | 100% | 34% | 766 mm Hg | S 181° 3.69 (6.69) m/s | 7 |
| 17:00 | Partly cloudy | 28 °C | 4% | 56% | 38% | 766 mm Hg | SSE 167° 3.69 (3.92) m/s | 7 |
| 18:00 | Cloudy | 29 °C | 6% | 73% | 38% | 765 mm Hg | S 185° 2.89 (3.33) m/s | 6 |
| 19:00 | Sunny | 28 °C | 1% | 5% | 40% | 765 mm Hg | S 189° 2.39 (3) m/s | 7 |
| 20:00 |  Partly cloudy | 26 °C | 4% | 46% | 45% | 766 mm Hg | S 182° 2.39 (2.92) m/s | 0 |
| 21:00 |  Cloudy | 26 °C | 5% | 54% | 46% | 766 mm Hg | SSW 206° 2.19 (2.89) m/s | 0 |
| 22:00 | Partly cloudy | 26 °C | 6% | 63% | 47% | 766 mm Hg | SW 230° 1.89 (2.81) m/s | 0 |
| 23:00 | Cloudy | 25 °C | 7% | 72% | 48% | 766 mm Hg | WSW 254° 1.69 (2.72) m/s | 0 |
Mon, Sep 21, 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.