Alfontes Temperature by Month

The average annual maximum temperature in Alfontes, Algarve, Portugal is 22°C (72°F), with daytime highs ranging from 16°C (61°F) in January to 30°C (86°F) in July. This page covers monthly averages, day-night differences, and how Alfontes compares to cities worldwide.

Visitors to Alfontes will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 19°C (66°F) in July to 9°C (48°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Alfontes 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 361 hours of sunshine.

The chart below shows the average temperature throughout the year:

Alfontes's average annual maximum temperature is 22°C (72°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Chicago, USA averages 15°C (59°F) annually, known for extreme seasonal swings, from bitterly cold winters to warm 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 Alfontes, January is the coolest month, with average highs of 16°C (61°F) and humidity around 77%, considered high. In July, the warmest month, temperatures average 30°C (86°F) with 60% 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.

Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.

Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.

For more on Alfontes's weather, including monthly rainfall, sunshine hours, and humidity, visit our Alfontes climate page.