Dornes Temperature by Month

The average annual maximum temperature in Dornes, Portugal is 22°C (72°F), with daytime highs ranging from 14°C (57°F) in January to 30°C (86°F) in August. This page covers monthly averages, day-night differences, and how Dornes compares to cities worldwide.

In Dornes, temperatures can shift dramatically between very warm in summer and mild in winter. Nights follow the same pattern, with lows ranging from 16°C (61°F) in August to 5°C (41°F) in January.

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

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. August, the city's warmest month, averages 301 hours of sunshine.

The chart below shows the average temperature throughout the year:

Dornes's average annual maximum temperature is 22°C (72°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

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

Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.

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 Dornes, January is the coolest month, with average highs of 14°C (57°F) and humidity around 78%, considered high. In August, the warmest month, temperatures average 30°C (86°F) with 67% 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 Dornes's weather, including monthly rainfall, sunshine hours, and humidity, visit our Dornes climate page.