Carvalhal Temperature by Month

The average annual maximum temperature in Carvalhal, Alentejo, Portugal is 21°C (70°F), with daytime highs ranging from 16°C (61°F) in January to 26°C (79°F) in August. This page covers monthly averages, day-night differences, and how Carvalhal compares to cities worldwide.

The moderate changes in the climate in Carvalhal ensure gradual weather shifts through each season. At night, temperatures drop to between 18°C (64°F) and 10°C (50°F) depending on the time of year.

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

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 350 hours of sunshine.

The chart below shows the average temperature throughout the year:

Carvalhal'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:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

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.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 Carvalhal's weather, including monthly rainfall, sunshine hours, and humidity, visit our Carvalhal climate page.