Portbou Temperature by Month
Portbou, Catalonia, Spain has an average annual maximum temperature of 20°C (68°F), ranging from 13°C (55°F) in January to 28°C (82°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Portbou Monthly Temperatures
The climate in Portbou is dynamic, ranging widely from moderate in winter to comfortable in summer. Nights are significantly colder, with lows dropping from 21°C (70°F) in August to 7°C (45°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Portbou by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. August, the city's warmest month, sees 262 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Portbou vs Spain
The map below shows the annual temperature across Spain. You can also select individual months if you want to compare a specific time of year.
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Portbou vs World: Temperature Compared
Portbou's average annual maximum temperature is 20°C (68°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Portbou?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Portbou, January is the coolest month, with average highs of 13°C (55°F) and humidity around 74% — considered high. In August, the warmest month, temperatures average 28°C (82°F) with 66% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Portbou's weather — including monthly rainfall, sunshine hours, and humidity — visit our Portbou climate page.
