Santo Tirso Weather in September

Santo Tirso in September averages 25°C (77°F) during the day and 15°C (59°F) at night. This is part of the summer season, and quite a bit of rainfall is expected this month.

Rainfall in Santo Tirso in September

Expect around 9 days of rain based on historical data, with 76 mm (3 in) average. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Santo Tirso in September

September is a good time to be in Santo Tirso. Days are excellent, reaching 25°C (77°F), with nights around 15°C (59°F). Experience the summer season in September. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Santo Tirso in September

With approximately 224 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in Santo Tirso in September

Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in September

At 18°C (64°F), the water is getting there — comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.

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

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• January
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For a detailed overview over the year and the best time to visit Portugal, check out our Santo Tirso's climate page.

Santo Tirso Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 25°C (77°F)  

Water Temperature 18°C (64°F) *  

Chance of Rain 30%  

Precipitation 76 mm (3 in)  

Rainy days 9 days  

Humidity 76% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 224 hours *  

Percentage Sunshine 64% *  

* Data from: Porto, Portugal (21 KM, 13 Miles).

What to Wear in Santo Tirso in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days. With water temperatures around 18°C (64°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Santo Tirso in September

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

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 Santo Tirso's climate page.

More climate data for Santo Tirso

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Santo Tirso climate overview or explore weather in Portugal.