5-day weather forecast Rio de Janeiro Sep 17, 2026
19°Weather forecast Rio de Janeiro tomorrow Sep 17, 2026: patchy rain possible, temperature from 18 °C to 19 °C.
Precipitation probability 63%. Wind up to 4.39 m/s (gusts 6.22 m/s). Air humidity 81–90%, atmospheric pressure 769–771 mm Hg, UV index up to 2.4.
5 days at a glance — tap a day to open it
Sunrise 05:47
Sunset 17:47
Sunset 17:47
First Quarter42% illuminated
Moonrise 10:05 · Moonset does not set today
Moonrise 10:05 · Moonset does not set today
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Light rain shower | 19 °C | 47% (0.29 mm/hr) | 100% | 85% | 770 mm Hg | SE 131° 4.11 (5.31) m/s | 0 |
| 01:00 | Light rain shower | 19 °C | 49% (0.33 mm/hr) | 100% | 85% | 770 mm Hg | SE 126° 4.11 (5.33) m/s | 0 |
| 02:00 | Light rain shower | 19 °C | 53% (0.4 mm/hr) | 100% | 85% | 769 mm Hg | ESE 118° 3.69 (4.92) m/s | 0 |
| 03:00 | Light rain shower | 18 °C | 48% (0.3 mm/hr) | 100% | 86% | 769 mm Hg | ESE 107° 3.5 (4.81) m/s | 0 |
| 04:00 | Light rain shower | 18 °C | 45% (0.24 mm/hr) | 100% | 86% | 769 mm Hg | ESE 102° 3.39 (4.64) m/s | 0 |
| 05:00 | Light rain shower | 18 °C | 45% (0.24 mm/hr) | 100% | 86% | 769 mm Hg | E 97° 3.31 (4.5) m/s | 0 |
| 06:00 | Patchy rain possible | 18 °C | 40% (0.15 mm/hr) | 100% | 86% | 770 mm Hg | E 90° 3.19 (4.31) m/s | 0 |
| 07:00 |  Light rain shower | 18 °C | 40% (0.18 mm/hr) | 100% | 85% | 770 mm Hg | E 86° 3.19 (4.42) m/s | 0.1 |
| 08:00 | Patchy rain possible | 19 °C | 29% (0.04 mm/hr) | 100% | 83% | 770 mm Hg | E 83° 3.31 (4.5) m/s | 0.4 |
| 09:00 | Patchy rain possible | 19 °C | 30% (0.06 mm/hr) | 100% | 83% | 771 mm Hg | E 81° 3.39 (4.5) m/s | 1.1 |
| 10:00 | Patchy rain possible | 19 °C | 29% (0.05 mm/hr) | 100% | 82% | 771 mm Hg | E 80° 3.61 (5) m/s | 1.7 |
| 11:00 | Patchy rain possible | 19 °C | 29% (0.05 mm/hr) | 100% | 82% | 770 mm Hg | E 80° 3.69 (5.14) m/s | 2.3 |
| 12:00 | Patchy rain possible | 19 °C | 29% (0.05 mm/hr) | 100% | 82% | 770 mm Hg | E 83° 3.89 (5.19) m/s | 2.4 |
| 13:00 | Patchy rain possible | 19 °C | 30% (0.06 mm/hr) | 100% | 81% | 770 mm Hg | E 82° 3.89 (5.42) m/s | 2 |
| 14:00 | Patchy rain possible | 19 °C | 30% (0.06 mm/hr) | 100% | 81% | 770 mm Hg | E 82° 4.11 (5.64) m/s | 1.5 |
| 15:00 | Patchy rain possible | 19 °C | 29% (0.05 mm/hr) | 100% | 82% | 769 mm Hg | E 80° 4.39 (6) m/s | 0.7 |
| 16:00 | Patchy rain possible | 19 °C | 35% (0.1 mm/hr) | 100% | 83% | 769 mm Hg | E 81° 4.31 (6.11) m/s | 0.2 |
| 17:00 | Patchy rain possible | 19 °C | 38% (0.14 mm/hr) | 100% | 84% | 770 mm Hg | ENE 78° 4.31 (6.22) m/s | 0.1 |
| 18:00 | Light rain shower | 18 °C | 44% (0.22 mm/hr) | 100% | 86% | 770 mm Hg | E 81° 4.19 (6.19) m/s | 0 |
| 19:00 | Light rain shower | 18 °C | 45% (0.23 mm/hr) | 100% | 87% | 770 mm Hg | ENE 77° 3.81 (5.81) m/s | 0 |
| 20:00 |  Patchy rain possible | 18 °C | 40% (0.15 mm/hr) | 100% | 87% | 770 mm Hg | ENE 71° 3.89 (6) m/s | 0 |
| 21:00 | Patchy rain possible | 18 °C | 40% (0.14 mm/hr) | 100% | 88% | 770 mm Hg | ENE 70° 3.69 (5.61) m/s | 0 |
| 22:00 | Light rain shower | 18 °C | 57% (0.44 mm/hr) | 100% | 88% | 770 mm Hg | ENE 77° 3.39 (5.31) m/s | 0 |
| 23:00 | Light rain shower | 18 °C | 63% (0.55 mm/hr) | 100% | 90% | 770 mm Hg | ENE 76° 3.89 (6.19) m/s | 0 |
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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.