Alfeizerão Temperature by Month

The average annual maximum temperature in Alfeizerão, Centro Region, Portugal is 20°C (68°F), with daytime highs ranging from 15°C (59°F) in January to 26°C (79°F) in August. This page covers monthly averages, day-night differences, and how Alfeizerão compares to cities worldwide.

Alfeizerão experiences balanced seasonal shifts, with noticeable but moderate temperature variations. At night, minimum temperatures range from 17°C (63°F) in August to 9°C (48°F) in January.

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

The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. August, the warmest month, gets 255 hours of sunshine.

The chart below shows the average temperature throughout the year:

Alfeizerão'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:

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

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

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 Alfeizerão, January is the coolest month, with average highs of 15°C (59°F) and humidity around 82%, considered very high. In August, the warmest month, temperatures average 26°C (79°F) with 89% humidity, conditions that feel very 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 Alfeizerão's weather, including monthly rainfall, sunshine hours, and humidity, visit our Alfeizerão climate page.