Portbou Temperatures: Monthly Averages and Year-Round Insights
On this page, we’ll explore temperature statistics for Portbou in Catalonia, Spain, including day and night variations and monthly averages. We’ll also compare the annual temperature to other cities in Spain.
Monthly Temperature Averages
Visitors to Portbou will encounter a climate influenced by big temperature differences across the year. On average, maximum daytime temperatures range from a comfortable 28°C in August to a moderate 13°C in January. Nighttime temperatures can drop, with averages reaching 7°C in January.
The chart below illustrates the average maximum day and minimum night temperatures in Portbou by month:
The lowest temperatures typically occur between 4 AM and 6 AM, while the peak temperatures are generally observed around 3 PM, when the sun's heating is most intense. August, the city’s warmest month, enjoys 262 hours of sunshine.
The chart below shows the average temperature throughout the year:
January, the city’s coldest month, sees about 65 mm of rainfall spread over roughly 12 days. It records 149 hours of sunshine of sunshine.
Annual Temperatures in Spain Compared
The map below shows the annual temperature across Spain. You can also select the different months in case you are interested in a specific month.






Portbou Temperatures Compared World Wide
Portbou’s average annual maximum temperature is 20°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.
Glasgow, Scotland, the average annual temperature is significantly lower at 13°C, with mild summers and cold winters.
In Seoul, South Korea, the average annual temperature is 18°C, featuring distinct seasons.
Perth, Australia, experiences a Mediterranean climate, with a pleasant average temperature of 25°C.
How does the temperature feel?
Humidity is an essential factor in how you experience temperature. When a warm period is accompanied by high humidity, it results in a higher perceived temperature. This is especially true when temperatures exceed 25°C, as it can cause greater discomfort.
In Portbou, during the coolest month, January, you will experience 74% humidity, which is considered high. This is accompanied by an average maximum temperature of 13°C. In the warmest month, August, the humidity is 66% combined with an average maximum temperature of 28°C, which creates a high-feel temperature. Explore our detailed page on humidity levels for further details.
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 Portbou’s weather, including monthly rainfall, sunshine hours, and humidity levels, visit our Portbou climate page.