Castelo Novo Temperature by Month

Castelo Novo in Centro Region, Portugal sees significant seasonal temperature differences, with daytime highs between 12°C (54°F) in January and 31°C (88°F) in July, averaging 21°C (70°F) annually. Explore the full monthly breakdown below.

The weather in Castelo Novo experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 17°C (63°F) in July to 4°C (39°F) in January.

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

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. July, the city's warmest month, gets 345 hours of sunshine.

The chart below shows the average temperature throughout the year:

Castelo Novo's average annual maximum temperature is 21°C (70°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.

Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.

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.

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 the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.

In Castelo Novo, January is the coolest month, with average highs of 12°C (54°F) and humidity around 80%, considered very high. In July, the warmest month, temperatures average 31°C (88°F) with 57% humidity, conditions that feel moderate. 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 Castelo Novo's weather, including monthly rainfall, sunshine hours, and humidity, visit our Castelo Novo climate page.