Rio de Janeiro Weather in October

In Rio de Janeiro, October brings high daytime temperatures around 28°C (82°F), with nights cooling to 21°C (70°F). Expect quite a bit of rainfall this month.

Rainfall in Rio de Janeiro in October

You can expect rain on around 18 days based on historical patterns, with 104 mm (4.1 in) average for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Rio de Janeiro in October

Temperatures in Rio de Janeiro in October top out at 28°C (82°F) and drop to 21°C (70°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 21°C (70°F), evenings stay pleasantly warm.

Sunshine in Rio de Janeiro in October

The city usually sees around 154 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Rio de Janeiro in October

Average wind speeds reach 3 m/s (6 knots) in October, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

Average water temperature in October

The water temperature is 22°C (72°F), which most people find very comfortable. A good month for swimming and water sports.

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

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

Rio de Janeiro Temperature in October

Min Temperature 21°C (70°F)  

Max Temperature 28°C (82°F)  

Water Temperature 22°C (72°F)  

Chance of Rain 58%  

Precipitation 104 mm (4.1 in)  

Rainy days 18 days  

Humidity 80%  

Windspeed 3 m/s (6 knots)  

Sunshine 154 hours  

Percentage Sunshine  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Rio de Janeiro typically stay consistent throughout October, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 21°C (70°F).

Average temperatures in October

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Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in October

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Historical weather for Rio de Janeiro in October

Browse day-by-day weather records for Rio de Janeiro spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Rio de Janeiro historical weather extremes in October

Based on 49 years of weather observations in Rio de Janeiro between 1976 and 2025, these are the recorded extremes.

• On October 30, 1984, temperatures climbed to 40°C (104°F), marking the warmest October day on record.
• On October 20, 2021, Rio de Janeiro saw its coldest October day with temperatures maxing out at 18°C (64°F).
• The coldest night in October in Rio de Janeiro was on October 6, 2014, with a minimum of 14°C (57°F).

What to Wear in Rio de Janeiro in October

Warm weather calls for comfortable, breathable clothing in October. 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). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Expect water temperatures of around 22°C (72°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Rio de Janeiro in October

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

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

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 Rio de Janeiro's climate page.

More climate data for Rio de Janeiro

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Rio de Janeiro climate overview or explore weather in Brazil.