Valongo Weather in September

Thinking of visiting Valongo in September? Expect high temperatures reaching 25°C (77°F) during the day, dropping to 16°C (61°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Valongo in September

Typically around 9 days of rainfall are expected, averaging 71 mm (2.8 in) for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Valongo in September

Valongo in September is worth a visit. The temperature is excellent, with 25°C (77°F) during the day and 16°C (61°F) at night. This month falls in the summer season. This kind of day-to-night contrast is typical for this time of year. Nights cool down to 16°C (61°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 Valongo in September

There are approximately 224 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Valongo in September

In September, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

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.

If your ideal day consists of dry skies and pleasant temperatures, June, July, August and September typically offer the best circumstances for Valongo.

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Check the conditions for any month of the year.

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

Valongo Temperature in September

Min Temperature 16°C (61°F)  

Max Temperature 25°C (77°F)  

Water Temperature 18°C (64°F) *  

Chance of Rain 29%  

Precipitation 71 mm (2.8 in)  

Rainy days 9 days  

Humidity 76% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 224 hours *  

Percentage Sunshine 64% *  

* Data from: Porto, Portugal (16 KM, 10 Miles).

What to Wear in Valongo in September

For Valongo in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Expect water temperatures of around 18°C (64°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Valongo in September

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

Swimming

9/10

Cycling

9/10

Walking

9/10

Barbeque

8/10

Camping

8/10

Outdoor sports

9/10

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 Valongo's climate page.

More climate data for Valongo

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Valongo climate overview or explore weather in Portugal.