São Teotónio Temperature by Month

São Teotónio, Algarve, Portugal has an average annual maximum temperature of 22°C (72°F), ranging from 16°C (61°F) in January to 28°C (82°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

With significant temperature fluctuations, São Teotónio enjoys distinct seasons year-round. Nighttime lows range from 18°C (64°F) in August to 8°C (46°F) in January.

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

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 340 hours of sunshine.

The chart below shows the average temperature throughout the year:

São Teotónio'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:

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

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

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

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

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 São Teotónio, January is the coolest month, with average highs of 16°C (61°F) and humidity around 76%, considered high. In August, the warmest month, temperatures average 28°C (82°F) with 62% 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 São Teotónio's weather, including monthly rainfall, sunshine hours, and humidity, visit our São Teotónio climate page.