Rio Maior Weather in September

In Rio Maior, September brings high daytime temperatures around 27°C (81°F), with nights cooling to 16°C (61°F). Some rainfall is to be expected.

Rainfall in Rio Maior in September

The climate data from previous years indicates about 7 days of rain, averaging 39 mm (1.5 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Rio Maior in September

The excellent temperature in Rio Maior in September makes it a solid month to visit, with 27°C (81°F) during the day and 16°C (61°F) at night. Experience the summer season in 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 Rio Maior in September

Expect sunny days throughout the month, with an estimated 198 hours of sunshine. This makes it a pleasant time to visit Rio Maior.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.

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

Rio Maior Temperature in September

Min Temperature 16°C (61°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 23%  

Precipitation 39 mm (1.5 in)  

Rainy days 7 days  

Humidity 88% *  

Sunshine 198 hours *  

Percentage Sunshine 53% *  

* Data from: Cabo Carvoeiro, Portugal (40 KM, 25 Miles).

What to Wear in Rio Maior in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Some rain is possible, so pack something to handle light showers. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Rio Maior in September

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

Swimming

7/10

Cycling

8/10

Walking

8/10

Camping

10/10

Outdoor sports

8/10

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 Rio Maior's climate page.

More climate data for Rio Maior

Temperature Rainfall Sunshine Humidity

See the full Rio Maior climate overview or explore weather in Portugal.