5-day weather forecast Lisbon 31-08-2026
Weather forecast Lisbon Monday, August 31 31.08.2026: sunny, temperature from 19 °C to 29 °C.
Precipitation probability 19%. Wind up to 7.19 m/s (gusts 13.22 m/s). Air humidity 30–76%, atmospheric pressure 763–764 mm Hg, UV index up to 7.
5 days at a glance — tap a day to open it
Sunrise 07:05
Sunset 20:08
Sunset 20:08
Waning Gibbous80% illuminated
Moonrise 21:31 · Moonset 10:24
Moonrise 21:31 · Moonset 10:24
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 20 °C | 3% | 0% | 58% | 764 mm Hg | NNW 348° 4.39 (11.81) m/s | 0 |
| 01:00 | Clear | 20 °C | 3% | 0% | 58% | 764 mm Hg | N 350° 4.5 (12.42) m/s | 0 |
| 02:00 | Clear | 20 °C | 3% | 0% | 60% | 764 mm Hg | N 352° 4.19 (12) m/s | 0 |
| 03:00 | Clear | 20 °C | 3% | 0% | 60% | 764 mm Hg | N 355° 3.81 (11.53) m/s | 0 |
| 04:00 | Clear | 19 °C | 4% | 0% | 61% | 764 mm Hg | N 354° 3.19 (10.14) m/s | 0 |
| 05:00 | Clear | 19 °C | 4% | 0% | 63% | 764 mm Hg | N 351° 3.11 (10.11) m/s | 0 |
| 06:00 | Clear | 19 °C | 4% | 0% | 63% | 764 mm Hg | N 352° 2.89 (9.53) m/s | 0 |
| 07:00 | Clear | 19 °C | 4% | 0% | 63% | 764 mm Hg | N 349° 2.81 (9.39) m/s | 0 |
| 08:00 |  Sunny | 19 °C | 4% | 0% | 61% | 764 mm Hg | N 351° 2.89 (8.61) m/s | 5 |
| 09:00 | Sunny | 21 °C | 2% | 0% | 52% | 764 mm Hg | N 357° 3.5 (7.61) m/s | 6 |
| 10:00 | Sunny | 24 °C | 1% | 0% | 42% | 764 mm Hg | N 358° 4 (7.03) m/s | 6 |
| 11:00 | Sunny | 26 °C | 1% | 0% | 35% | 764 mm Hg | N 354° 4.81 (6.81) m/s | 7 |
| 12:00 | Sunny | 28 °C | 1% | 0% | 31% | 764 mm Hg | N 354° 4.61 (5.81) m/s | 7 |
| 13:00 | Sunny | 29 °C | 0% | 0% | 30% | 764 mm Hg | NNW 345° 5.39 (5.81) m/s | 7 |
| 14:00 | Sunny | 29 °C | 0% | 0% | 30% | 764 mm Hg | NNW 342° 5.81 (6.22) m/s | 7 |
| 15:00 | Sunny | 29 °C | 1% | 0% | 32% | 763 mm Hg | NNW 343° 6.11 (6.22) m/s | 7 |
| 16:00 | Sunny | 28 °C | 1% | 0% | 32% | 763 mm Hg | NNW 343° 6 (6.83) m/s | 7 |
| 17:00 | Sunny | 28 °C | 1% | 0% | 34% | 763 mm Hg | NNW 344° 5.89 (7.42) m/s | 7 |
| 18:00 | Sunny | 26 °C | 1% | 0% | 36% | 763 mm Hg | NNW 345° 5.89 (8.03) m/s | 7 |
| 19:00 | Sunny | 24 °C | 1% | 0% | 45% | 763 mm Hg | NNW 345° 7.19 (10.72) m/s | 6 |
| 20:00 | Sunny | 22 °C | 3% | 0% | 56% | 763 mm Hg | NNW 347° 6.19 (12.33) m/s | 6 |
| 21:00 | Clear | 21 °C | 5% | 0% | 66% | 764 mm Hg | N 351° 5.89 (12.39) m/s | 0 |
| 22:00 | Clear | 20 °C | 7% | 2% | 75% | 764 mm Hg | N 352° 6 (13.22) m/s | 0 |
| 23:00 |  Cloudy | 19 °C | 19% | 86% | 76% | 764 mm Hg | N 354° 5.61 (12.89) m/s | 0 |
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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.