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)	1.81	1.89	2	2.61	3.39	2.81	2.39	3.81	2.31	2.39	3	2.39	2	2	0.19	1.69	0.89	4.31	4.89	5.39	5.11	4.81	4.5	3.5
Wind gust (m/s)	3.19	2.72	3.92	4.33	7.22	5.42	4.33	7.89	4	3.83	4.22	3.5	2.83	4.25	1.44	1.81	5.72	7.31	6.22	9.61	10.61	11.5	12.5	9.81
Wind direction (°)	NNE 31°	ENE 72°	ENE 64°	ENE 68°	ENE 74°	E 93°	E 96°	E 94°	E 82°	E 84°	E 91°	E 86°	E 87°	E 100°	SSE 150°	W 259°	NNE 32°	WNW 299°	NW 312°	NNW 327°	NNW 333°	NNW 339°	NNW 345°	WSW 247°

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 (%)	43	41	38	37	44	55	61	69	60	53	53	39	34	33	24	22	13	27	31	42	42	42	42	42

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)	766	766	766	766	766	766	767	766	767	767	767	767	767	766	766	765	764	765	765	764	764	764	764	764

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	0.6	1.8	3.5	5.2	6.3	8	8	8	8	7	7	0	0	0	0

Air quality & pollen

Air quality is available for the first three days only.

← Sun, Sep 20

Mon, Sep 21, 2026

Lisbon on the map

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 →