Arcos Weather in September

September in Arcos brings high temperatures, with daytime highs of 24°C (75°F) and nights around 16°C (61°F). Quite a bit of rainfall is expected, around 72 mm (2.8 in), so pack an umbrella.

Rainfall in Arcos in September

Climate statistics over the past 30 years suggest around 9 days of rain, with 72 mm (2.8 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Arcos in September

Arcos in September is worth a visit. The temperature is excellent, with 24°C (75°F) during the day and 16°C (61°F) at night. The summer season takes place during September. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 16°C (61°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Arcos in September

Enjoy a sunny month with about 224 hours of sunshine, the clear skies make Arcos even more beautiful.

Wind Speed in Arcos 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

The water temperature is 18°C (64°F). It's not warm, but most people find it perfectly fine for a swim once they're in.

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

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• January
• February
• March
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• May
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• September
• October
• November
• December

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

Arcos Temperature in September

Min Temperature 16°C (61°F)  

Max Temperature 24°C (75°F)  

Water Temperature 18°C (64°F) *  

Chance of Rain 30%  

Precipitation 72 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 (18 KM, 11 Miles).

What to Wear in Arcos in September

For Arcos 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. 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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Arcos 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 Arcos's climate page.

More climate data for Arcos

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

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