Castillonnès Temperature by Month

The average annual maximum temperature in Castillonnès, Aquitaine, France is 20°C (68°F), with daytime highs ranging from 11°C (52°F) in January to 29°C (84°F) in August. This page covers monthly averages, day-night differences, and how Castillonnès compares to cities worldwide.

Depending on the time of the year, temperatures range from comfortable to cold in Castillonnès. At night, minimum temperatures range from 16°C (61°F) in August to 3°C (37°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Castillonnès 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 240 hours of sunshine.

The chart below shows the average temperature throughout the year:

Castillonnès'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.

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

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

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