Carcavelos Temperature by Month

Carcavelos in Lisbon Region, Portugal sees moderate seasonal temperature shifts, with daytime highs between 16°C (61°F) in January and 24°C (75°F) in August, averaging 19°C (66°F) annually. Explore the full monthly breakdown below.

The weather in Carcavelos changes moderately throughout the year, offering enough variation to appreciate each season. Nights are cooler, with lows ranging from 18°C (64°F) to 11°C (52°F).

The chart below illustrates the average maximum day and minimum night temperatures in Carcavelos by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. August, the city's warmest month, gets 355 hours of sunshine.

The chart below shows the average temperature throughout the year:

Carcavelos's average annual maximum temperature is 19°C (66°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Queenstown, New Zealand averages 10°C (50°F) annually, remember seasons are flipped, so its coldest months fall in June and July.

Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

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 Carcavelos, January is the coolest month, with average highs of 16°C (61°F) and humidity around 82%, considered very high. In August, the warmest month, temperatures average 24°C (75°F) with 73% 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 Carcavelos's weather, including monthly rainfall, sunshine hours, and humidity, visit our Carcavelos climate page.