Arco de São Jorge Temperature by Month

The average annual maximum temperature in Arco de São Jorge, Madeira Islands, Portugal is 20°C (68°F), with daytime highs ranging from 17°C (63°F) in February to 25°C (77°F) in August. This page covers monthly averages, day-night differences, and how Arco de São Jorge compares to cities worldwide.

Arco de São Jorge sees moderate fluctuations in temperatures, making each season distinct yet not extreme. Nights are considerably cooler, with lows ranging from 20°C (68°F) in August to 13°C (55°F) in February.

The chart below illustrates the average maximum day and minimum night temperatures in Arco de São Jorge by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. August, the city's warmest month, sees 238 hours of sunshine.

The chart below shows the average temperature throughout the year:

Arco de São Jorge'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:

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

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

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 Arco de São Jorge, February is the coolest month, with average highs of 17°C (63°F) and humidity around 70%, considered high. In August, the warmest month, temperatures average 25°C (77°F) with 72% 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 Arco de São Jorge's weather, including monthly rainfall, sunshine hours, and humidity, visit our Arco de São Jorge climate page.