Is the weather good in Portugal in May 2025?
For the past few decades, the average daily temperatures in Portugal during May have been around +19°C.
In Portugal the temperature rarely varies more than seven degrees between the different parts with the highest temperature +19°C in Faro to +15°C in Terceira Island. So you should be able to pack for similar conditions wherever you go in the country.
Temperature, wind and humidity in May
- rainiest? Porto, with an average of 3 mm of rain and humidity of 75%;
- warmest? Faro, with daytime temperatures averaging +22°C;
- windiest? Terceira Island, with an average of 4 m/s;
- coolest? Terceira Island, with daytime temperatures averaging +15°C;
How good is the weather in Portugal in May?
How warm is it in Portugal during May?
This is how hot it usually is in May
- Average maximum temperature for the month: +19°C;
- Average minimum temperature for the month: +14°C;
- Highest monthly temperature: +20°C;
- Lowest monthly temperature: +13°C;
Monthly temperatures:
- Warmest: August with an average +25°C during the day;
- Coldest: January with an average +15°C of the day;
- Hottest month in hottest city: July in Faro;
- Coldest month in coolest city: February in Terceira Island;
Winds in Portugal during May
May tends to offer light winds averaging 4 m/s. However, coastal cities may experience breezes during the mornings and afternoons.
Comparison between cities in May:
- Highest average wind speed: Terceira Island with 4 m/s;
- Lowest average wind speed: Faro with 3 m/s;
- Windiest day of the month: Terceira Island with 4 m/s;
- The least windy day of the month: Faro with 3 m/s;
Humidity and precipitation in Portugal in May
Comparison between cities in May:
- Highest average rainfall: Porto with 80 mm;
- Lowest average rainfall: Funchal with 16 mm;
- Most number of rainy days: Terceira Island with 14 rainy days;
- Least number of rainy days: Faro with 6 rainy days;
- Highest risk of rain during the day: Terceira Island with 45%;
- Least risk of rain during the day: Faro with 19%;
- Highest average humidity: Terceira Island with 81%;
- Lowest average humidity: Faro with 67%;
Tips for traveling to Portugal in May
Looking for some tips for traveling to the sun, snow, or whatever you're aiming for Portugal? Activities, weather, and clothing are closely linked. In addition, it's important to pack only what you really need so you don't have to worry about heavy packing or paying extra baggage fees.
Here is some advice on what to pack and what kind of activities you can do in the Portugal based on the weather that May is expected to bring. The advice applies to the country as a whole – local weather and possible activities may differ somewhat.
Pack right for May
- For light showers, an umbrella or a thin and light rain cape is usually sufficient, while more rain may require rainwear and rain boots.
- Cool weather is between warm and cold. This means you can bring long pants and/or a longer skirt and an extra sweater. Be aware that cool days can alternate with cold nights - it may be wise to also pack a hat, gloves and a scarf.
- Light winds are probably most comfortable in hot weather but is cooling in cool and cold weather. If it is hot (when the air temperature is about 30 degrees), the wind can have a warming effect. A thin, windproof jacket and long trousers help to counteract these effects.
- High humidity means that the air conducts heat to and from the skin more easily. For example, if the air is hot (above skin temperature), it will be harder to stay cool. On the other hand, if the air is cool or cold, it is more difficult to stay warm. In high humidity, the choice of clothing makes less of a difference. However, your physical activity plays a bigger role.
FAQ
What can you do outside when it's warm in Portugal?
Is May a good time to visit Portugal?
Monthly weather in Portugal
Source of the data
For this page, we’ve looked at the typical weather in Portugal, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.