Today's Weather Forecast - Lisbon

Today's weather in Lisbon. high 31°C (88°F), low 19°C (66°F). Sunny.

Today’s Hourly Weather Outlook

Morning6 AM – Noon21°
Wind speed
6 km/h
Rain probability
0%
AfternoonNoon – 6 PM29°
Wind speed
8 km/h
Rain probability
0%
Evening6 PM – Midn25°
Wind speed
14 km/h
Rain probability
0%
NightMidn – 6 AM19°
Wind speed
9 km/h
Rain probability
0%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 6:44 AM
Total Daylight
53% of day elapsedSolar noon 1:32 PM
Sunset
Dusk 8:21 PM
Remaining5h 57m
Solar elevation56°
vs yesterday-4 min

Air Quality Index & Health Advice

Air Quality Index

Air quality level
Good
Dominant pollutant
Dominant: O3
Monitoring station
Entrecampos, Lisboa, Portugal
PM2.5
27μg/m³
PM10
15μg/m³
O₃
15.1ppb
NO₂
20.6ppb
SO₂
0.8ppb
0Good → Hazardous300+

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Lisbon is forecast to reach a high of 31°C today, with an overnight low around 19°C. That's 8° above the long-term average high of 23°C for this time of year. It continues a recent pattern — 11 of the last 19 days with published data have run warmer than normal. Expect little chance of rain (0% probability) and a gentle breeze averaging 14 km/h. Air quality is currently good (AQI 48), with no notable outdoor health concerns.

Today vs Normal

31°C+8° above normal

The long-term average high for today is 23°C.

11 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-19: 24°C24°2026-08-20: 23°C23°2026-08-21: 23°C23°2026-08-22: 23°C23°2026-08-23: 23°C23°2026-08-24: 23°C23°2026-08-25: 23°C23°2026-08-26: 22°C22°2026-08-27: 22°C22°2026-08-28: 23°C23°2026-08-29: 24°C24°2026-08-30: 24°C24°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.