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São João do Estoril Weather in September
São João do Estoril in September averages 22°C (72°F) during the day and 18°C (64°F) at night. Some rainfall is typical for this time of year.
Rainfall in São João do Estoril in September
Based on our climate data of the past 30 years, about 6 days of rain are anticipated, with 31 mm (1.2 in) on average. The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.
Temperature in São João do Estoril in September
Weather in São João do Estoril is at its excellent in September. Highs reach 22°C (72°F), while nights settle around 18°C (64°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 18°C (64°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in São João do Estoril in September
Expect a lot of sunshine this month, with about 278 hours of sun. These sunny conditions add to the overall experience.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August, September and October typically offer the best weather for São João do Estoril.
São João do Estoril Temperature in September
Min Temperature
18°C (64°F)
Max Temperature
22°C (72°F)
Chance of Rain
20%
Precipitation
31 mm (1.2 in)
Rainy days
6 days
Humidity
75% *
Sunshine
278 hours *
Percentage Sunshine
75% *
* Data from: Cascais, Portugal (3 KM, 1 Miles).
São João do Estoril Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in São João do Estoril - and find the best time to visit.
Best Places in Portugal in September
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in São João do Estoril in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Pack a light rain jacket or compact umbrella for occasional showers. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in São João do Estoril in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping10/10 -
Outdoor sports10/10
São João do Estoril 3-Day Forecast
More climate data for São João do Estoril
Temperature Rainfall Sunshine Humidity
See the full São João do Estoril climate overview or explore weather in Portugal.
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