Arco da Calheta Temperature by Month

Arco da Calheta in Madeira Islands, Portugal sees moderate seasonal temperature shifts, with daytime highs between 17°C (63°F) in February and 25°C (77°F) in August, averaging 20°C (68°F) annually. Explore the full monthly breakdown below.

Seasonal changes in Arco da Calheta bring a little variety without extreme temperature swings. Nighttime lows range from 20°C (68°F) in August to 14°C (57°F) in February.

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

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. August, the warmest month, sees 238 hours of sunshine.

The chart below shows the average temperature throughout the year:

Arco da Calheta'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:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

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.

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 da Calheta, 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.

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