5-day weather forecast Lisbon 21-05-2026

Weather forecast Lisbon Thursday, May 21 21.05.2026: sunny, temperature from 18 °C to 30 °C.

No precipitation expected. Wind up to 2.61 m/s (gusts 5.47 m/s). Air humidity 32–67%, atmospheric pressure 764–766 mm Hg, UV index up to 8.2.

Sunrise 06:20
Sunset 20:47

Waxing Crescent24% illuminated
Moonrise 10:55 · Moonset 01:07

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← Wed, May 20

Thu, May 21, 2026

Fri, May 22 →

Forecast from 18 °C to 30 °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)	20	20	20	19	19	18	18	18	19	21	23	24	26	27	28	29	29	30	30	30	28	26	25	24
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 (%)	0	0	2	2	3	3	2	2	2	6	4	3	3	4	1	0	0	0	0	0	0	0	0	1
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

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)	1	0.5	0.69	1.89	2.61	1.61	1.39	1.81	1.61	1.69	1.31	0.89	1	1.19	0.89	0.61	0.69	1.11	1.31	1.39	1.81	2	2	1.89
Wind gust (m/s)	2.11	1.06	1.47	4	5.47	3.36	2.94	3.78	2.89	2.58	1.86	1.25	1.42	1.75	1.36	0.94	1.17	1.97	2.53	2.89	3.78	4.19	4.19	4
Wind direction (°)	WNW 290°	WNW 284°	E 94°	E 85°	E 90°	ESE 104°	ENE 78°	NE 55°	ENE 68°	E 79°	E 83°	E 85°	ENE 74°	ENE 73°	ENE 77°	NE 40°	N 0°	N 350°	N 352°	NNW 344°	NW 318°	NNW 329°	N 357°	NNE 30°

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 (%)	60	60	60	60	63	66	67	66	61	55	47	42	39	37	35	34	33	32	32	33	38	43	47	49

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)	765	765	765	764	764	764	764	765	766	766	766	766	766	766	765	765	764	764	764	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	0.1	0.5	1.5	3.1	5.1	7	8.2	7	7	7	7	8	7	7	0	0	0

← Wed, May 20

Thu, May 21, 2026

Fri, May 22 →

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 →