Rio de Janeiro weather

Today's sky, the hour-by-hour rain chance and the 16-day forecast for Rio de Janeiro, Brazil. Like most weather services, we show Rio de Janeiro at one spot: Rio de Janeiro, its largest city. Best months for weather: May–Sep.

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Best Time to Visit

Peak season May–SepOff season Nov–Jan

Off208 mm

28°23°☁ 71%Jan

Fair152 mm

28°23°☁ 62%Feb

Fair173 mm

28°23°☁ 66%Mar

Fair101 mm

27°22°☁ 56%Apr

Peak71 mm

25°20°☁ 56%May

Peak49 mm

24°19°☁ 49%Jun

Peak45 mm

24°18°☁ 45%Jul

Peak42 mm

25°18°☁ 45%Aug

Peak69 mm

25°19°☁ 57%Sep

Fair108 mm

26°20°☁ 70%Oct

Off220 mm

26°21°☁ 79%Nov

Off232 mm

27°22°☁ 75%Dec

Rio de Janeiro weather by month

When is the best time to visit Rio de Janeiro?

Based on weather alone, the best time to visit Rio de Janeiro is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Jan tends to be the least pleasant. Average highs run from 24°C (75°F) in July to 28°C (83°F) in February.

What is the rainiest month in Rio de Janeiro?

December is the wettest month, with about 232 mm (9.1 in) of rain on average. August is the driest, with about 42 mm (1.7 in).

What is the hottest month in Rio de Janeiro?

February is the warmest, with average highs of 28°C (83°F) and lows of 23°C (74°F). July is the coolest, with highs of 24°C (75°F) and lows of 18°C (64°F).

Does Rio de Janeiro have a rainy season?

Yes. Nov–Mar is the rainy season (150 mm or more a month), while Jun–Aug is usually dry (under 60 mm).

Rio de Janeiro weather month by month

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

Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis for Rio de Janeiro), forecast and current conditions from Open-Meteo. Page updated Oct 31, 2026. How we rate months

Compare places in Rio de Janeiro

Weather can differ a lot within Rio de Janeiro: coasts, hills and mountains each have their own climate.

Place	Best months	Rainy months	Highs	Rain a year
Rio de Janeiro	May–Sep	Nov–Mar	24–28°C	1,470 mm
Duque de Caxias	May–Sep	Nov–Mar	24–28°C	1,470 mm
Nova Iguaçu	May–Sep	Nov–Mar	24–29°C	1,523 mm
Belford Roxo	May–Sep	Nov–Mar	24–28°C	1,470 mm
Niterói	May–Sep	Nov–Mar	24–28°C	1,470 mm
Campos dos Goytacazes	Apr–Sep	Nov–Jan	25–29°C	1,113 mm
São João de Meriti	May–Sep	Nov–Mar	24–28°C	1,470 mm
Barra da Tijuca	May–Sep	Nov–Mar	24–28°C	1,470 mm
Petrópolis	Apr–Sep	Mar, Nov–Jan	25–29°C	1,357 mm
São Gonçalo	May–Sep	Nov–Mar	24–28°C	1,470 mm
Volta Redonda	Apr–Sep	Nov–Mar	22–28°C	1,379 mm
Macaé	Apr–Sep	Nov–Jan	25–29°C	1,176 mm