Today's Weather Forecast - Rio de Janeiro

Today's weather in Rio de Janeiro. high 27°C (81°F), low 21°C (70°F). Overcast.

Today’s Hourly Weather Outlook

Morning6 AM – Noon23°
Wind speed
13 km/h
Rain probability
12%
AfternoonNoon – 6 PM27°
Wind speed
9 km/h
Rain probability
3%
Evening6 PM – Midn25°
Wind speed
10 km/h
Rain probability
4%
NightMidn – 6 AM21°
Wind speed
15 km/h
Rain probability
90%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 5:23 AM
Total Daylight
51% of day elapsedSolar noon 11:49 AM
Sunset
Dusk 6:15 PM
Remaining5h 49m
Solar elevation62°
vs yesterday+2 min

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Rio de Janeiro is forecast to reach a high of 27°C today, with an overnight low around 21°C. That's 2° above the long-term average high of 25°C for this time of year. Expect a high chance of rain (90% probability) and a gentle breeze averaging 15 km/h. Air quality is currently Moderate (AQI 55), driven mainly by PM2.5 at 10 μg/m³.

Today vs Normal

27°C+2° above normal

The long-term average high for today is 25°C.

11 of the last 28 days with published data ran above normal.

That's a break from the pattern - today's forecast runs above normal even though the recent stretch mostly ran below.

2026-08-28: 27°C27°2026-08-29: 33°C33°2026-08-30: 26°C26°2026-08-31: 26°C26°2026-09-01: 25°C25°2026-09-02: 23°C23°2026-09-03: 25°C25°2026-09-04: 29°C29°2026-09-05: 23°C23°2026-09-06: 21°C21°2026-09-07: 20°C20°2026-09-08: 23°C23°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.