5-day weather forecast Rio de Janeiro Sep 20, 2026
25°Weather forecast Rio de Janeiro Sunday Sep 20, 2026: cloudy, temperature from 20 °C to 25 °C.
Precipitation probability 47%. Wind up to 3.69 m/s (gusts 8.69 m/s). Air humidity 66–91%, atmospheric pressure 761–764 mm Hg, UV index up to 8.
5 days at a glance — tap a day to open it
Sunrise 05:44
Sunset 17:48
Sunset 17:48
Waxing Gibbous73% illuminated
Moonrise 12:47 · Moonset 01:57
Moonrise 12:47 · Moonset 01:57
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Table
Sun, Sep 20, 2026
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Cloudy | 21 °C | 21% | 84% | 82% | 764 mm Hg | ESE 121° 2.5 (2.56) m/s | 0 |
| 01:00 |  Overcast | 20 °C | 25% | 100% | 83% | 764 mm Hg | ENE 58° 3.5 (4) m/s | 0 |
| 02:00 | Overcast | 20 °C | 25% | 100% | 83% | 763 mm Hg | NE 42° 3.31 (4.22) m/s | 0 |
| 03:00 | Overcast | 20 °C | 26% | 100% | 83% | 763 mm Hg | NNE 18° 2.31 (3.14) m/s | 0 |
| 04:00 | Cloudy | 20 °C | 21% | 79% | 84% | 763 mm Hg | N 11° 2.19 (3.14) m/s | 0 |
| 05:00 |  Patchy rain possible | 20 °C | 27% (0.01 mm/hr) | 100% | 85% | 763 mm Hg | NNE 30° 2.69 (3.61) m/s | 0 |
| 06:00 | Cloudy | 20 °C | 21% | 75% | 84% | 764 mm Hg | NE 41° 2.39 (2.72) m/s | 0 |
| 07:00 |  Patchy rain possible | 21 °C | 24% (0.01 mm/hr) | 95% | 82% | 764 mm Hg | NNE 21° 1.89 (2.61) m/s | 0.5 |
| 08:00 |  Partly cloudy | 22 °C | 13% | 55% | 77% | 764 mm Hg | N 0° 1.19 (1.72) m/s | 1.7 |
| 09:00 | Patchy rain possible | 23 °C | 14% (0.02 mm/hr) | 66% | 73% | 764 mm Hg | NE 37° 1.31 (1.72) m/s | 4 |
| 10:00 |  Sunny | 23 °C | 10% | 50% | 70% | 764 mm Hg | NE 51° 1.61 (1.89) m/s | 7 |
| 11:00 | Patchy rain possible | 24 °C | 7% | 34% | 68% | 764 mm Hg | ENE 64° 1.81 (2.11) m/s | 6 |
| 12:00 | Sunny | 25 °C | 5% | 18% | 66% | 763 mm Hg | ENE 78° 2.11 (2.22) m/s | 7 |
| 13:00 |  Overcast | 25 °C | 8% | 43% | 67% | 762 mm Hg | E 94° 2.61 (4.39) m/s | 6 |
| 14:00 | Sunny | 25 °C | 11% | 67% | 68% | 761 mm Hg | ESE 110° 3.19 (6.5) m/s | 8 |
| 15:00 | Overcast | 25 °C | 16% | 92% | 69% | 761 mm Hg | SE 126° 3.69 (8.69) m/s | 7 |
| 16:00 | Cloudy | 24 °C | 16% | 83% | 74% | 761 mm Hg | SE 131° 3.11 (6.69) m/s | 6 |
| 17:00 | Overcast | 24 °C | 17% | 75% | 78% | 762 mm Hg | SE 135° 2.61 (4.69) m/s | 6 |
| 18:00 | Cloudy | 23 °C | 18% | 67% | 83% | 762 mm Hg | SE 140° 2 (2.72) m/s | 0 |
| 19:00 |  Light rain shower | 22 °C | 31% (0.1 mm/hr) | 78% | 85% | 763 mm Hg | SSW 212° 2.11 (2.69) m/s | 0 |
| 20:00 | Cloudy | 22 °C | 40% (0.2 mm/hr) | 89% | 87% | 763 mm Hg | WNW 284° 2.31 (2.61) m/s | 0 |
| 21:00 | Light rain shower | 22 °C | 47% (0.24 mm/hr) | 100% | 90% | 763 mm Hg | N 356° 2.39 (2.61) m/s | 0 |
| 22:00 | Patchy rain possible | 22 °C | 46% (0.2 mm/hr) | 100% | 90% | 763 mm Hg | N 350° 2.5 (2.81) m/s | 0 |
| 23:00 | Light rain shower | 22 °C | 41% (0.1 mm/hr) | 100% | 91% | 762 mm Hg | NNW 343° 2.69 (3.11) m/s | 0 |
Sun, Sep 20, 2026
Rio de Janeiro on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.