Niterói Weather in August

In Niterói, August brings high daytime temperatures around 27°C (81°F), with nights cooling to 18°C (64°F). It is the driest month of the year, with minimal rainfall.

Rainfall in Niterói in August

Known for its least rainfall, this month is the best of the year for people who like to spend time outdoors. Typically around 9 days of rainfall are expected, averaging 45 mm (1.8 in) for the month. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Niterói in August

August is a perfect month in Niterói, with 27°C (81°F) during the day and 18°C (64°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. Nights cool down to 18°C (64°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 Niterói in August

You can expect a moderate amount of sunlight, with approximately 182 hours. This means a pleasant mix of sun and overcast.

Wind Speed in Niterói in August

August has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Average water temperature in August

The water is 21°C (70°F) this month — a comfortable temperature that most swimmers enjoy. Warm enough to stay in without getting cold quickly.

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

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 Brazil, check out our Niterói's climate page.

Niterói Temperature in August

Min Temperature 18°C (64°F)  

Max Temperature 27°C (81°F)  

Water Temperature 21°C (70°F) *  

Chance of Rain 30%  

Precipitation 45 mm (1.8 in)  

Rainy days 9 days  

Humidity 77% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 182 hours *  

Percentage Sunshine *  

* Data from: Rio de Janeiro, Brazil (8 KM, 5 Miles).

What to Wear in Niterói in August

Warm but pleasant conditions in Niterói in August. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. The water temperature sits at about 21°C (70°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Niterói in August

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 Brazil, check out our Niterói's climate page.

More climate data for Niterói

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Niterói climate overview or explore weather in Brazil.