Lisbon Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore Lisbon’s temperature statistics in detail, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in Portugal.
Monthly Temperature Averages
The climate in Lisbon is dynamic, ranging widely from moderate in winter to comfortable in summer. Typically, maximum daytime temperatures range from a comfortable 27°C in August to a moderate 15°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to 9°C, particularly during the colder months.
The chart below illustrates the average maximum day and minimum night temperatures in Lisbon by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM. During this time the sun's heating effect is the strongest.
The chart below shows the average temperature throughout the year:
August, the city’s warmest month, also receives about 5.7 mm of rainfall spread over roughly 2 days. For more information, please visit our Lisbon Precipitation page.
Annual Temperatures in Portugal Compared
The map below shows the annual temperature across Portugal. You can also select the different months in case you are interested in a specific month.
very warm
warm
pleasant
moderate
cold
very cold
Lisbon Temperatures Compared World Wide
Lisbon’s average annual maximum temperature is 21°C. Let’s compare this with some popular tourist destinations:
The city of Rome, Italy, has an average annual temperature of 20°C, known for its sunny summers and comfortable winters.
In contrast, in Oslo, Norway, the average annual temperature is significantly lower at 10°C, with mild summers and cold winters.
Chicago, USA, has a significant seasonal range, with an average annual temperature of 15°C.
Melbourne, Australia, has a slightly cooler climate, with an average annual temperature of 20°C.
How are these Temperatures Measured?
Generally, temperature data depicting climate is usually given over a 30-year average in order to reduce short-term fluctuations and reveal better long-term trends in climate conditions.
This temperature data is taken from land-based thermometers, ocean buoys, ships, and satellites. These measurements are transmitted to weather stations and climate centers around the globe where they are processed, averaged, and analyzed in order to monitor the trends and create climate models.
Temperatures in the Mountains
Although not all regions have mountains, elevated areas exhibit distinct temperature variations.
- Sun Exposure: Sunlit slopes tend to be warmer, while shaded areas remain cooler.
- Altitude Effects: Temperatures drop by approximately 6°C for every 1,000 meters of elevation, creating distinct microclimates.
For more detailed information about Lisbon’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Lisbon climate page.
Current temperature in Lisbon
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