Castelo Branco Temperature by Month

Castelo Branco in Azores, Portugal sees moderate seasonal temperature shifts, with daytime highs between 17°C (63°F) in March and 24°C (75°F) in August, averaging 20°C (68°F) annually. Explore the full monthly breakdown below.

Castelo Branco experiences balanced seasonal shifts, with noticeable but moderate temperature variations. At night, minimum temperatures range from 22°C (72°F) in August to 14°C (57°F) in March.

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

Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating.

The chart below shows the average temperature throughout the year:

Castelo Branco'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:

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

Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

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

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.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Castelo Branco this rarely lasts long on the ground.

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