5-day weather forecast Lisbon Sep 15, 2026

21°20–28° · Sunny

Weather forecast Lisbon today Sep 15, 2026: sunny, temperature from 20 °C to 28 °C.

Precipitation probability 12%. Wind up to 7.89 m/s (gusts 16.53 m/s). Air humidity 38–82%, atmospheric pressure 765–767 mm Hg, UV index up to 6.8.

Sunrise 07:18
Sunset 19:45
Waxing Crescent23% illuminated
Moonrise 12:08 · Moonset 21:50
Chart
Table
Tue, Sep 15, 2026

Forecast from 20 °C to 28 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)252424232222222121222426272828282726252321212020
Precipitation (mm/hr)000000000000000000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)000000002000000000005192821
Rain chance (%)122334456421111111148111211

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)2.52.111.691.691.691.811.8922.393.193.394.6155.616.316.817.397.817.57.697.117.57.697.89
Wind gust (m/s)7.396.533.53.313.834.034.144.115.4266.317.317.57.898.619.6110.3311.3311.9214.1115.6115.8915.8316.53
Wind direction (°)NNW 345°NNW 344°N 353°N 353°NNW 347°NNW 340°NNW 340°NNW 338°NNW 335°NNW 342°NNW 342°NNW 341°NNW 332°NNW 330°NNW 331°NNW 336°NNW 342°NNW 344°NNW 346°NNW 346°NNW 344°NNW 345°NNW 344°NNW 346°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)464952566063666971665346424040383843476678828281

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)766766766766766766766766767767767767767767767766766765765766766767767767

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index000000000.10.723.85.66.86.85.84.12.30.90.20000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)6.76.87.17.47.67.788.59.67.88.27.97.57.67.67.87.77.676.96.75.55.55.5
PM10 (µg/m³)11.111.711.912.212.312.714.214.714.215.115.713.413.812.412.812.813.912.512.814.313.411.713.414.2
Ozone (O₃) (µg/m³)716769706967615545515966778590908987848080685650
NO₂ (µg/m³)15.714.910.78.77.47.89.916.322.319.6161310.79.27.97.26.76.36.87.98.88.47.87
SO₂ (µg/m³)1.91.91.71.61.51.51.61.81.922.11.91.71.61.51.31.21.21.1111.11.10.9
CO (µg/m³)147146143141141140153152159166160152150144142140139141141136136125117116
Tue, Sep 15, 2026

Frequently asked questions about the 5-day weather in Lisbon

What will the weather be like in Lisbon over the next 5 days?

Over the next 5 days in Lisbon the temperature is expected to range from about 17 to 30 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

On which of the next 5 days will it rain in Lisbon?

The chance of rain in Lisbon over the next 5 days reaches 23%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

How accurate is the 5-day weather forecast for Lisbon?

A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.

Which of the next 5 days in Lisbon will be the warmest and which the coolest?

Over the next 5 days the temperature in Lisbon ranges from about 17 to 30 °C. Compare the warmest and coolest day on the temperature chart above.

Will it be windy in Lisbon over the next 5 days?

Over the next 5 days the wind in Lisbon picks up to 9 m/s. The windiest days are easy to spot on the wind chart above.

Which day of the week in Lisbon is best for a walk or a trip?

For a walk or a trip, pick the days with the lowest chance of rain (up to 23%) and light wind — easy to compare on the 5-day charts above.

How can I best use the 5-day forecast for Lisbon?

The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

Will I need an umbrella or sunscreen in Lisbon this week?

Rain reaches a 23% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 6.8; sunscreen is worth it from about 3 upwards.

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.