Last 7 days
Today
23° / 19° High / Low (°C)
96% Humidity
100% Rain probability
Drizzle Condition
~12h Rain duration
What this means
In Rio de Janeiro on 2 Sep 2026, rain is expected: 100% chance, up to 5.2 mm forecast (source: Open-Meteo).
Moderate rain is expected today for around 12 hours — 100% probability, up to 5.2mm forecast. An umbrella is the right call.
Rain season
Rio's wet season (November–March) brings intense afternoon thunderstorms that can be catastrophic. The city's steep hills and narrow ravines concentrate runoff rapidly, making landslides and flash flooding a serious risk — January is historically the highest-risk month. Annual totals average 1,200mm. The dry season (May–September) is reliably clear and mild.
Elsewhere in Brazil