Rio Weather in September

September is one of the perfect months to visit Rio, with daytime temperatures of 27°C (81°F) and lows of 17°C (63°F) at night. Some rainfall is typical for this time of year.

Rainfall in Rio in September

Typically, about 4 days will experience rainfall, with an average of 56 mm (2.2 in) for the month. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.

Temperature in Rio in September

Rio has perfect weather in September, with days reaching 27°C (81°F) and nights cooling to 17°C (63°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows of 17°C (63°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 Rio in September

Enjoy a sunny month with about 281 hours of sunshine, the clear skies make Rio even more beautiful.

Wind Speed in Rio in September

Wind speeds average 1 m/s (2 knots) during September. At this speed, you'll experience mostly light air movement that's just barely noticeable. As an average, some days will be completely calm while others have gentle breezes you can feel on your skin.

Average water temperature in September

The water is 23°C (73°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Rio.

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 Greece, check out our Rio's climate page.

Rio Temperature in September

Min Temperature 17°C (63°F)  

Max Temperature 27°C (81°F)  

Water Temperature 23°C (73°F) *  

Chance of Rain 12%  

Precipitation 56 mm (2.2 in)  

Rainy days 4 days  

Humidity 63% *  

Windspeed 1 m/s (2 knots) *  

Sunshine 281 hours *  

Percentage Sunshine *  

* Data from: Patras, Greece (7 KM, 4 Miles).

What to Wear in Rio 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). Rain is likely on several days, so bring a good rain jacket. With water temperatures around 23°C (73°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Rio in September

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

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

8/10

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 Greece, check out our Rio's climate page.

More climate data for Rio

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Rio climate overview or explore weather in Greece.