15-Day Weather Forecast - Rio de Janeiro
15-day weather forecast for Rio de Janeiro: temperatures from 18°C (64°F) to 28°C (82°F). Average daily high 24°C (75°F) over the next 15 days.
Hourly Forecast by Day
15-Day Temperature Trend
15-Day Weather Forecast
Updated just nowWeather Insight
Rio de Janeiro's 15-day outlook ranges from a low of 18°C to a high of 28°C, with an average daytime high near 24°C. That's 1° below the long-term average high of 25°C for this time of year. It continues a recent pattern — 11 of the last 28 days with published data have run cooler than normal. Air quality is currently Moderate (AQI 55), driven mainly by PM2.5 at 10 μg/m³.
Today vs 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.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Extended Outlook for Rio de Janeiro
Over the next 15 days, Rio de Janeiro is forecast to see temperatures ranging from 18°C to 28°C, averaging a daily high of 24°C. The extended outlook indicates significant rainfall totalling 78.6 mm spread across 14 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.