São Martinho do Porto Weather in September

September in São Martinho do Porto typically sees daytime highs of 24°C (75°F) and nighttime lows of 17°C (63°F). Expect some rainfall during the month. It falls within the summer season.

Rainfall in São Martinho do Porto in September

Past climate data indicates that roughly 7 days will see rain, totalling around 40 mm (1.6 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in São Martinho do Porto in September

São Martinho do Porto in September is worth a visit. The temperature is excellent, with 24°C (75°F) during the day and 17°C (63°F) at night. September is in the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 17°C (63°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in São Martinho do Porto in September

Expect a lot of sunshine this month, with about 198 hours of sun. These sunny conditions add to the overall experience.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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For a detailed overview over the year and the best time to visit Portugal, check out our São Martinho do Porto's climate page.

São Martinho do Porto Temperature in September

Min Temperature 17°C (63°F)  

Max Temperature 24°C (75°F)  

Chance of Rain 24%  

Precipitation 40 mm (1.6 in)  

Rainy days 7 days  

Humidity 88% *  

Sunshine 198 hours *  

Percentage Sunshine 53% *  

* Data from: Cabo Carvoeiro, Portugal (29 KM, 18 Miles).

What to Wear in São Martinho do Porto 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in São Martinho do Porto in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

7/10

Cycling

10/10

Walking

10/10

Camping

10/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Portugal, check out our São Martinho do Porto's climate page.

More climate data for São Martinho do Porto

Temperature Rainfall Sunshine Humidity

See the full São Martinho do Porto climate overview or explore weather in Portugal.