5-day weather forecast State of Rio de Janeiro 18-03-2026
Weather forecast State of Rio de Janeiro tomorrow 18.03.2026: light rain shower, temperature from 15 °C to 23 °C.
Precipitation probability 75%. Wind up to 1 m/s (gusts 1.28 m/s). Air humidity 72–100%, atmospheric pressure 758–761 mm Hg, UV index up to 11.7.
Sunrise 05:52
Sunset 18:05
Sunset 18:05
Chart
Table
Type of temperature:
°C
°F| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Fog | 16 °C | 0% | 100% | 98% | 761 mm Hg | NW 318° 0.31 (0.64) m/s | 0 |
| 01:00 | Fog | 15 °C | 0% | 100% | 98% | 761 mm Hg | NW 308° 0.5 (1.06) m/s | 0 |
| 02:00 | Fog | 15 °C | 0% | 100% | 98% | 761 mm Hg | WNW 298° 0.5 (1.06) m/s | 0 |
| 03:00 | Fog | 15 °C | 0% | 100% | 98% | 760 mm Hg | WNW 291° 0.39 (0.83) m/s | 0 |
| 04:00 | Fog | 15 °C | 0% | 100% | 98% | 760 mm Hg | WNW 283° 0.39 (0.83) m/s | 0 |
| 05:00 | Fog | 15 °C | 0% | 100% | 98% | 761 mm Hg | NW 307° 0.39 (0.83) m/s | 0 |
| 06:00 |  Fog | 15 °C | 0% | 100% | 97% | 761 mm Hg | NW 318° 0.5 (1.06) m/s | 0 |
| 07:00 |  Partly cloudy | 17 °C | 0% | 42% | 94% | 761 mm Hg | NNW 334° 0.61 (1.08) m/s | 0.7 |
| 08:00 | Partly cloudy | 20 °C | 0% | 61% | 85% | 761 mm Hg | N 351° 0.5 (0.61) m/s | 2.4 |
| 09:00 |  Patchy rain possible | 22 °C | 75% (0.01 mm/hr) | 85% | 72% | 761 mm Hg | N 354° 0.89 (1.03) m/s | 5.1 |
| 10:00 | Patchy rain possible | 22 °C | 100% (0.05 mm/hr) | 51% | 75% | 761 mm Hg | N 356° 1 (1.14) m/s | 8.5 |
| 11:00 |  Light drizzle | 22 °C | 100% (0.22 mm/hr) | 80% | 77% | 760 mm Hg | NNW 348° 0.81 (0.92) m/s | 11.3 |
| 12:00 |  Light rain shower | 23 °C | 100% (0.64 mm/hr) | 91% | 81% | 760 mm Hg | NW 322° 0.39 (0.5) m/s | 11.7 |
| 13:00 | Light rain shower | 22 °C | 100% (0.15 mm/hr) | 92% | 87% | 759 mm Hg | NNW 342° 0.39 (0.53) m/s | 8.6 |
| 14:00 | Light rain shower | 22 °C | 100% (1.58 mm/hr) | 92% | 87% | 758 mm Hg | N 11° 0.31 (0.42) m/s | 4.6 |
| 15:00 | Light rain shower | 21 °C | 100% (0.84 mm/hr) | 86% | 93% | 758 mm Hg | SSE 166° 0.11 (0.14) m/s | 2.6 |
| 16:00 | Light rain shower | 21 °C | 100% (0.81 mm/hr) | 89% | 95% | 758 mm Hg | SSE 167° 0.39 (0.53) m/s | 1.1 |
| 17:00 | Light rain shower | 20 °C | 100% (0.53 mm/hr) | 100% | 97% | 758 mm Hg | SSE 153° 0.5 (0.69) m/s | 0.3 |
| 18:00 | Fog | 19 °C | 100% (0.07 mm/hr) | 100% | 98% | 759 mm Hg | SE 143° 0.81 (1.28) m/s | 0 |
| 19:00 | Fog | 19 °C | 100% (0.07 mm/hr) | 100% | 99% | 759 mm Hg | SSE 150° 0.81 (1.25) m/s | 0 |
| 20:00 |  Light rain shower | 19 °C | 100% (0.3 mm/hr) | 100% | 99% | 760 mm Hg | SE 143° 0.81 (1.22) m/s | 0 |
| 21:00 | Light rain shower | 19 °C | 100% (0.34 mm/hr) | 100% | 99% | 760 mm Hg | SE 146° 0.81 (1.22) m/s | 0 |
| 22:00 |  Light rain | 19 °C | 100% (0.97 mm/hr) | 100% | 100% | 760 mm Hg | SSE 156° 0.69 (1.06) m/s | 0 |
| 23:00 | Light rain shower | 19 °C | 100% (0.24 mm/hr) | 100% | 99% | 760 mm Hg | SSE 159° 0.81 (1.19) m/s | 0 |
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.