Brazil

Planning a Trip to Rio de Janeiro? Here's the Weather

See what weather to expect in Rio de Janeiro, Brazil and plan your trip with confidence. Monthly averages from real historical weather data.

Rio de Janeiro stays warm year-round, with highs ranging from the mid-25°Cs during the cooler mid-year stretch up to 30°C at the summer peak, and heavy downpours also peaking in January — yet the city's outdoor culture never really pauses, with lively bar and nightlife scenes that thrive rain or shine. What sets Rio apart is how dramatically the rainfall eases mid-year, turning its parks and green spaces into genuinely pleasant places to linger rather than dash through.

Written by Leo Vicente, founder & engineer who loves to travel

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27°C

Avg. high

21°C

Avg. low

1109mm

Yearly rainfall

5

Best months

Travel Window Score · 8.5/10

Rio de Janeiro's best stretch runs June–July — around 7 rain days a month and daytime highs near 25°C, on a 10-year historical average (climatology tier).

Climatology · 10-YR AVG · How we forecast →

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Monthly Temperature & Rainfall

What Weather to Expect in Rio de Janeiro

Rio de Janeiro typically has the most favorable weather for travel during May, June, July, August, September, with comfortable temperatures and relatively low rainfall — ideal conditions for sightseeing and outdoor activities.

MayJuneJulyAugustSeptember
Hottest monthJanuary (30°C)
Coldest monthJuly (18°C)
Wettest monthJanuary (154mm)
Driest monthJune (38mm)

Best Time to Visit Rio de Janeiro

May through September offer a drier stretch with rainfall well below the annual average and comfortable highs in the mid-25°C to 27°C range — the most reliable window for spending long hours outdoors exploring parks and open-air dining without the interruption of heavy afternoon rain.

The best time to visit Rio de Janeiro is May through September, when daytime highs average around 25°C and rainfall stays low at roughly 52mm per month. These months offer the most comfortable conditions for sightseeing, outdoor activities, and exploring the city at a relaxed pace. June is typically the driest of these months, with only around 38mm of precipitation.

January brings the heaviest rainfall of the year alongside the highest heat, making it the most disruptive period for outdoor plans.

Rio de Janeiro Weather by Season

Spring

Spring (March–May) brings warm weather to Rio de Janeiro, with highs averaging 27°C and lows around 22°C. The season is moderately wet, accumulating around 278mm total with roughly 11 rainy days per month.

Summer

Summer (June–August) brings warm weather to Rio de Janeiro, with highs averaging 25°C and lows around 18°C. The season is relatively dry, accumulating around 141mm total with roughly 8 rainy days per month.

Autumn

Autumn (September–November) brings warm weather to Rio de Janeiro, with highs averaging 27°C and lows around 21°C. The season is moderately wet, accumulating around 278mm total with roughly 13 rainy days per month.

Winter

Winter (December–February) brings hot weather to Rio de Janeiro, with highs averaging 30°C and lows around 24°C. The season is quite wet, accumulating around 412mm total with roughly 15 rainy days per month.

Things to do in Rio de Janeiro

Handpicked activities you can book now, matched to typical weather in Rio de Janeiro.

Climate data is a 10-year historical average (2016–2025), averaged across a wide area rather than a single weather station. Temperatures in Celsius. How we forecast →