5-day weather forecast Rio de Janeiro 21-03-2026
Weather forecast Rio de Janeiro Saturday 21 March 21.03.2026: partly cloudy, temperature from 22 °C to 28 °C.
Precipitation probability 83%. Wind up to 4.5 m/s (gusts 5.36 m/s). Air humidity 63–82%, atmospheric pressure 758–760 mm Hg, UV index up to 8.
Sunrise 05:56
Sunset 18:08
Sunset 18:08
Chart
Table
Type of temperature:
°C
°FSat, 21 Mar, 2026
| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Partly cloudy | 23 °C | 0% | 38% | 74% | 758 mm Hg | NE 36° 1.11 (1.67) m/s | 0 |
| 01:00 | Partly cloudy | 23 °C | 0% | 32% | 76% | 758 mm Hg | NNE 17° 1.11 (1.72) m/s | 0 |
| 02:00 | Partly cloudy | 22 °C | 0% | 34% | 77% | 758 mm Hg | N 353° 0.89 (1.42) m/s | 0 |
| 03:00 | Partly cloudy | 22 °C | 0% | 39% | 78% | 758 mm Hg | WNW 299° 0.69 (1.08) m/s | 0 |
| 04:00 | Partly cloudy | 22 °C | 0% | 41% | 78% | 758 mm Hg | NW 318° 0.69 (1.11) m/s | 0 |
| 05:00 | Partly cloudy | 22 °C | 0% | 34% | 79% | 758 mm Hg | N 6° 0.89 (1.42) m/s | 0 |
| 06:00 |  Partly cloudy | 22 °C | 0% | 26% | 79% | 758 mm Hg | NNE 33° 0.89 (1.44) m/s | 0 |
| 07:00 |  Sunny | 23 °C | 0% | 19% | 77% | 759 mm Hg | NE 36° 1.19 (1.67) m/s | 0.6 |
| 08:00 | Partly cloudy | 24 °C | 0% | 34% | 73% | 759 mm Hg | NNE 31° 1.61 (1.94) m/s | 2.2 |
| 09:00 | Partly cloudy | 26 °C | 0% | 39% | 68% | 760 mm Hg | NE 55° 1 (1.14) m/s | 5 |
| 10:00 | Partly cloudy | 27 °C | 0% | 33% | 64% | 759 mm Hg | ESE 115° 1.39 (1.61) m/s | 8 |
| 11:00 | Partly cloudy | 27 °C | 0% | 47% | 64% | 759 mm Hg | SE 137° 2.39 (2.75) m/s | 8 |
| 12:00 | Sunny | 28 °C | 0% | 23% | 63% | 758 mm Hg | SE 141° 3.39 (3.92) m/s | 8 |
| 13:00 | Partly cloudy | 28 °C | 0% | 37% | 63% | 758 mm Hg | SE 136° 4 (4.61) m/s | 8 |
| 14:00 |  Patchy rain possible | 27 °C | 83% (0.03 mm/hr) | 76% | 64% | 758 mm Hg | SE 136° 4.5 (5.17) m/s | 7 |
| 15:00 | Patchy rain possible | 27 °C | 87% (0.03 mm/hr) | 72% | 66% | 758 mm Hg | SE 134° 4.5 (5.36) m/s | 7 |
| 16:00 | Patchy rain possible | 26 °C | 66% (0.03 mm/hr) | 52% | 67% | 758 mm Hg | ESE 122° 4.11 (5.14) m/s | 7 |
| 17:00 | Patchy rain possible | 26 °C | 85% (0.01 mm/hr) | 65% | 70% | 758 mm Hg | ESE 121° 3.61 (4.75) m/s | 7 |
| 18:00 | Patchy rain possible | 25 °C | 62% (0.01 mm/hr) | 66% | 73% | 759 mm Hg | ESE 114° 3.19 (4.42) m/s | 7 |
| 19:00 |  Cloudy | 25 °C | 0% | 65% | 75% | 759 mm Hg | ESE 104° 3 (4.17) m/s | 0 |
| 20:00 | Partly cloudy | 25 °C | 0% | 47% | 77% | 760 mm Hg | E 88° 3 (4.19) m/s | 0 |
| 21:00 | Partly cloudy | 25 °C | 0% | 42% | 78% | 760 mm Hg | E 84° 2.69 (3.78) m/s | 0 |
| 22:00 | Partly cloudy | 24 °C | 0% | 32% | 80% | 760 mm Hg | ENE 76° 2.39 (3.47) m/s | 0 |
| 23:00 | Partly cloudy | 24 °C | 0% | 33% | 82% | 760 mm Hg | ENE 58° 2.11 (3.14) m/s | 0 |
Sat, 21 Mar, 2026
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.