Rio das Ostras
Brazil
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Rio das Ostras, Brazil

January, the same as December, is a moderately hot summer month in Rio das Ostras, Brazil, with temperature in the range of an average high of 28.8°C (83.8°F) and an average low of 23.1°C (73.6°F). In Rio das Ostras, the average high-temperature is essentially the same as in December - a still warm 28.8°C (83.8°F). Weather in January »

The last month of the summer, February, is also a moderately hot month in Rio das Ostras, Brazil, with average temperature fluctuating between 29.1°C (84.4°F) and 22.9°C (73.2°F). February is the warmest month, with an average high-temperature of 29.1°C (84.4°F) and an average low-temperature of 22.9°C (73.2°F). In February, the average heat index is appraised at a sweltering 35.2°C (95.4°F). Weather in February »

The first month of the autumn, March, is also a moderately hot month in Rio das Ostras, Brazil, with average temperature varying between 22.7°C (72.9°F) and 28°C (82.4°F). In March, the average high-temperature is practically the same as in February - a still warm 28°C (82.4°F). Weather in March »

April, the same as March, is a moderately hot autumn month in Rio das Ostras, Brazil, with average temperature ranging between max 26.5°C (79.7°F) and min 21.4°C (70.5°F). In Rio das Ostras, the average high-temperature in April is relatively the same as in March - a still moderately hot 26.5°C (79.7°F). Weather in April »

The last month of the autumn, May, is also a moderately hot month in Rio das Ostras, Brazil, with temperature in the range of an average high of 25°C (77°F) and an average low of 19.4°C (66.9°F). In Rio das Ostras, the average high-temperature is practically the same as in April - a still moderately hot 25°C (77°F). Weather in May »

The first month of the winter, June, is also a moderately hot month in Rio das Ostras, Brazil, with average temperature ranging between max 24.1°C (75.4°F) and min 18.8°C (65.8°F). June is the coldest month, with an average high-temperature of 24.1°C (75.4°F) and an average low-temperature of 18.8°C (65.8°F). Weather in June »

July, the same as June, is another warm winter month in Rio das Ostras, Brazil, with average temperature fluctuating between 24.2°C (75.6°F) and 18.5°C (65.3°F). In July, the average high-temperature is practically the same as in June - a still moderately hot 24.2°C (75.6°F). Weather in July »

August, the last month of the winter, in Rio das Ostras, is another warm month, with average temperature varying between 24.3°C (75.7°F) and 18.3°C (64.9°F). In Rio das Ostras, the average high-temperature is almost the same as in July - a still moderately hot 24.3°C (75.7°F). Weather in August »

September, the first month of the spring, in Rio das Ostras, is also a moderately hot month, with average temperature varying between 25.2°C (77.4°F) and 19.3°C (66.7°F). In Rio das Ostras, the average high-temperature is almost the same as in August - a still moderately hot 25.2°C (77.4°F). Weather in September »

October, like September, in Rio das Ostras, Brazil, is a moderately hot spring month, with average temperature varying between 25.9°C (78.6°F) and 20.6°C (69.1°F). In Rio das Ostras, the average high-temperature is essentially the same as in September - a still moderately hot 25.9°C (78.6°F). Weather in October »

The last month of the spring, November, is another warm month in Rio das Ostras, Brazil, with temperature in the range of an average high of 25.8°C (78.4°F) and an average low of 21.1°C (70°F). In November, the average high-temperature is relatively the same as in October - a still warm 25.8°C (78.4°F). Weather in November »

December, the first month of the summer, in Rio das Ostras, is still a warm month, with average temperature varying between 22.2°C (72°F) and 27.5°C (81.5°F). In December, the average high-temperature is practically the same as in November - a still warm 27.5°C (81.5°F). Weather in December »

How many days does it rain in Rio das Ostras?

In Rio das Ostras, during the entire year, the rain falls for 179.7 days and collects up to 674mm (26.54") of precipitation.

What is the month with the highest UV index in Rio das Ostras?

January is the month with the highest UV index in Rio das Ostras, Brazil, with an average maximum UV index of 7.

What is the warmest month in Rio das Ostras?

February is the warmest month in Rio das Ostras, with an average high-temperature of 29.1°C (84.4°F) and an average low-temperature of 22.9°C (73.2°F).

What month has the most sunshine in Rio das Ostras?

February has the most sunshine of the year in Rio das Ostras, with an average of 9h of sunshine.

What is the month with the warmest sea water in Rio das Ostras?

The month with the warmest seawater in Rio das Ostras is March, with an average sea temperature of 25.8°C (78.4°F).

What is the coldest month in Rio das Ostras?

With an average high-temperature of 24.1°C (75.4°F) and an average low-temperature of 18.8°C (65.8°F), June is the coldest month in Rio das Ostras, Brazil.

What is the driest month in Rio das Ostras?

The month with the least rainfall is June when the rain falls for 10.8 days and typically collects 18mm (0.71") of precipitation.

What is the month with the shortest days in Rio das Ostras?

June has the shortest days of the year, with an average of 10.8h of daylight.

What are the months with the lowest UV index in Rio das Ostras?

July and September, with an average maximum UV index of 5, are months with the lowest UV index.

What is the least humid month in Rio das Ostras?

Months with the lowest humidity in Rio das Ostras, Brazil, are August and September, with an average relative humidity of 78%.

What month is the sea coldest in Rio das Ostras?

The month with the coldest seawater in Rio das Ostras is September, with an average sea temperature of 21.9°C (71.4°F).

What is the month with the least sunshine in Rio das Ostras?

The month with the least sunshine is October, with an average of 7.6h of sunshine.

What are the most humid months in Rio das Ostras?

Months with the highest humidity in Rio das Ostras, Brazil, are November and December, with an average relative humidity of 84%.

What is the rainiest month in Rio das Ostras?

November is the month with the most rainfall. Rain falls for 19.2 days and accumulates 108mm (4.25") of precipitation.

When are the longest days in Rio das Ostras?

With an average of 13.5h of daylight, December has the longest days of the year in Rio das Ostras, Brazil.
Average temperature - Rio das Ostras, Brazil
Average humidity - Rio das Ostras, Brazil
Average rainfall - Rio das Ostras, Brazil
Average rainfall days - Rio das Ostras, Brazil

The month with the highest number of rainy days is March (21.7 days).
The month with the least rainy days is August (8.9 days).

Average sea temperature - Rio das Ostras, Brazil

The best month for swimming (with the highest average sea temperature) is March (25.8°C).
The coldest month (with the lowest average sea temperature) is September (21.9°C).

Average daylight / Average sunshine - Rio das Ostras, Brazil

The month with the longest days is December (Average daylight: 13.5h).
The month with the shortest days is June (Average daylight: 10.8h).

The month with the most sunshine is February (Average sunshine: 9h).
The month with the least sunshine is October (Average sunshine: 7.6h).