São Lourenço do Douro Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit São Lourenço do Douro.
Climate overview of São Lourenço do Douro
São Lourenço do Douro, Norte Region, Portugal, sees big temperature differences between seasons, with August peaking at 28°C (82°F) and January dropping to 13°C (55°F).
The city receives considerable rainfall, with around 1487 mm (59 in) annually. December is the wettest month. It has distinct dry (July to August) and wet (October to January) seasons, with warm summers and mild winters. The sunniest month is July, with 10.2 hours of sunshine per day on average.
São Lourenço do Douro Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in São Lourenço do Douro - and find the best time to visit.
Monthly Temperature in São Lourenço do Douro
Visitors to São Lourenço do Douro can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in August to a moderate 13°C (55°F) in the coolest month, January.
Nights vary from 15°C (59°F) in August to around 4°C (39°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in São Lourenço do Douro
São Lourenço do Douro is known for its substantial rainfall, with annual precipitation reaching 1487 mm (59 in). The climate in São Lourenço do Douro shows significant variation throughout the year. Expect heavy rainfall in December, the wettest month, with an average of 191 mm (7.5 in) of precipitation over 15 rainy days.
In contrast, the driest month July offers drier and sunnier days, with around 31 mm (1.2 in) of rainfall over 6 rainy days. For more details, please visit our São Lourenço do Douro Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in São Lourenço do Douro
For those who appreciate different seasons, São Lourenço do Douro serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.2 hours of sunshine daily, and embrace the darker days in January, offering only 4.1 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in São Lourenço do Douro by Month
The relative humidity is high throughout the year in São Lourenço do Douro.
The city experiences its highest humidity in January, reaching 81%. In July, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit São Lourenço do Douro
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: July and August
- Fewest rainy days: July and August
- Seasonal pattern: Distinct dry (July to August) and wet (October to January) seasons, with warm summers and mild winters
Frequently asked questions about the climate in São Lourenço do Douro
What is the best time to visit São Lourenço do Douro?
June, July, August and September typically offer the most optimal weather in São Lourenço do Douro. In contrast, January and December tend to have less optimal conditions. São Lourenço do Douro has distinct dry (July to August) and wet (October to January) seasons, with warm summers and mild winters.
What temperatures can I expect in São Lourenço do Douro?
Daytime highs range from 13°C (55°F) in January to 28°C (82°F) in August. Nighttime lows range from 4°C (39°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does São Lourenço do Douro get?
Annual rainfall is around 1487 mm (59 in). December is the wettest month with 191 mm (7.5 in), while July is the driest with 31 mm (1.2 in).
How sunny is São Lourenço do Douro?
São Lourenço do Douro receives around 2,465 hours of sunshine per year. July is the sunniest month with 307 hours, while January is the cloudiest with just 122 hours. Overall, São Lourenço do Douro enjoys abundant sunshine.
São Lourenço do Douro 3-Day Forecast
São Lourenço do Douro on the map
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