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Weather in Lisbon for May 2026

Your guide to Lisbon weather in May - trends and predictions

    Temperatures

  • Expect cooler weather in the next days in Lisbon with the forecast suggesting a temperature of 19.7 °C, lower than the historical average.

  • In general, the average temperature in Lisbon at the beginning of May is 20.4 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 25.3 °C by the end of May.

    • Rain 🌧️

  • With an average of 5 rainy days, Lisbon experiences minimal rainfall in May.

    • More

  • Is May a good time to visit Lisbon? check out the best time to travel to Lisbon page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
26
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
23°/14°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
64 %
Avg humidity

Lisbon Weather May

Move between months or click on a day
April
June
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Partly cloudy
20°
2
Heavy rain at times
20°
3
Patchy rain possible
20°
4
Patchy rain possible
21°
5
Partly cloudy
21°
6
Partly cloudy
22°
7
Sunny
19°
8
Moderate rain
19°
9
Moderate rain
17°
10
Patchy rain possible
18°
11
Patchy rain possible
19°
12
Patchy rain possible
20°
13
Patchy rain possible
19°
14
Patchy rain possible
18°
15
Sunny
18°
16
Sunny
22°
17
Sunny
23°
18
Patchy rain possible
22°
19
Patchy rain possible
22°
20
Partly cloudy
25°
21
Partly cloudy
23°
22
Partly cloudy
21°
23
Partly cloudy
23°
24
Sunny
23°
25
Sunny
24°
26
Sunny
24°
27
Sunny
25°
28
Sunny
26°
29
Sunny
25°
30
Sunny
26°
31
Overcast
27°

What’s the Weather Like in Lisbon This May?

Discover the average temperatures and weather trends across Lisbon’s cities this May.
Patchy rain possibleCascais19 °C / 15 °CPatchy rain possibleCacém23 °C / 13 °CPatchy rain possibleAmadora23 °C / 13 °CPatchy rain possibleQueluz23 °C / 13 °CMore Locations

Temperatures trend during May in Lisbon

See the weather trend as well as the moving average line

May weather in Lisbon day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
1 May Partly cloudy
Partly cloudy
 20° /11° 0.4 mm 6
2 May Heavy rain at times
Heavy rain at times
 20° /12° 2.5 mm 5
3 May Patchy rain possible
Patchy rain possible
 20° /12° 1.5 mm 6
4 May Patchy rain possible
Patchy rain possible
 21° /12° 0.9 mm 6
5 May Partly cloudy
Partly cloudy
 21° /13° 0.4 mm 6
6 May Partly cloudy
Partly cloudy
 22° /13° 0.1 mm 6
7 May Sunny
Sunny
 19° /12° 0 mm 6.5
8 May Moderate rain
Moderate rain
 19° /12° 6.6 mm 6.4
9 May Moderate rain
Moderate rain
 17° /14° 9.7 mm 4
10 May Patchy rain possible
Patchy rain possible
 18° /14° 4.1 mm 4
11 May Patchy rain possible
Patchy rain possible
 19° /13° 1.5 mm 4
12 May Patchy rain possible
Patchy rain possible
 20° /14° 0.4 mm 4
13 May Patchy rain possible
Patchy rain possible
 19° /13° 0.3 mm 4
14 May Patchy rain possible
Patchy rain possible
 18° /13° 0.1 mm 4
15 May Sunny
Sunny
 18° /12° 0 mm 4
16 May Sunny
Sunny
 22° /13° 0 mm 5
17 May Sunny
Sunny
 23° /16° 0 mm 5
18 May Patchy rain possible
Patchy rain possible
 22° /13° 0.5 mm 4
19 May Patchy rain possible
Patchy rain possible
 22° /15° 0.2 mm 4
20 May Partly cloudy
Partly cloudy
 25° /14° 0 mm 6
21 May Partly cloudy
Partly cloudy
 23° /14° 0.3 mm 6
22 May Partly cloudy
Partly cloudy
 21° /14° 1 mm 5
23 May Partly cloudy
Partly cloudy
 23° /13° 0.3 mm 6
24 May Sunny
Sunny
 23° /14° 0.7 mm 6
25 May Sunny
Sunny
 24° /13° 0 mm 6
26 May Sunny
Sunny
 24° /14° 0 mm 6
27 May Sunny
Sunny
 25° /14° 0.1 mm 6
28 May Sunny
Sunny
 26° /14° 0 mm 7
29 May Sunny
Sunny
 25° /15° 0.1 mm 6
30 May Sunny
Sunny
 26° /16° 0.8 mm 6
31 May Overcast
Overcast
 27° /16° 0.1 mm 6
Next
Important Notice
Our weather forecast for Lisbon in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Lisbon forecast closer to your planned date for the most up-to-date weather information.
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Lisbon weather in May vs April vs June

Compare May weather in Lisbon with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AprilMayJune
WeatherPatchy rain possible
Patchy rain possible
Sunny
Sunny
Sunny
Sunny
Temperatures20°/12°23°/14°25°/16°
Rainfall56 mm16 mm13 mm
Wind21.3 km/h23.3 km/h24 km/h
Humidity69%64%66%
Rainy days20 days5 days8 days
Dry days10 days26 days22 days

Planning a trip to Lisbon? Discover the best time to visit

Lisbon in May - FAQ

What are the expected maximum and minimum temperatures in Lisbon during May?

Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Lisbon during May?

Expect minimal rainfall in Lisbon during May, with a total of 16.3 mm over approximately 5 days. This minimal precipitation is unlikely to significantly impact plans.

What are the typical wind conditions in Lisbon during May?

The average wind speed in Lisbon during May is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

Lisbon water temperatures in May

The average water temperature of the Atlantic Ocean near Lisbon in May is 14.3 °C. Temperatures remain fairly consistent throughout the month.

What is the water temperature in Lisbon in May?
The average water temperature in Lisbon in May is 14.3 °C.
Can you swim in Lisbon in May?
Cold enough that you lose heat fast. A full 4–5 mm wetsuit (plus hood/gloves for comfort) is advisable for anything beyond a brief plunge.

What to pack to Lisbon in May?

As you prepare for your trip to Lisbon in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Lisbon, during May, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather

May rainfall patterns in Lisbon

Explore the daily rainfall trends and prepare for Lisbons May weather 💧
Typically, Lisbon has 5 rainy days in May with a total of 16.3 mm of rainfall.

UV exposure in Lisbon during May

Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
Provinces in Lisbon
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AmadoraCascaisSintra
Top locations in Lisbon
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AmadoraCacémCascaisQueluz
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Quick links

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Location coordinates Where is Lisbon?

Get accurate weather forecasts for Lisbon, located at latitude 38.717 and longitude -9.133. Stay updated with localized weather information tailored for Lisbon.

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