Weather forecast State of Rio de Janeiro 18-12-2025
Weather tomorrow temperature from 17 °C to 22 °C, cloud cover up to 100%, precipitation is expected with a 63% chance, wind up to 1 m/s (gusts up to 1.25 m/s), air humidity from 86% to 99%, atmospheric pressure from 761 to 763 mm Hg, UV Index to 3.9 during the day. Forecast for the next days on the table.
Sunrise 05:00
Sunset 18:33
Sunset 18:33
Chart
Table
Type of temperature:
°C
°F| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Fog | 17 °C | 63% (0.02 mm/hr) | 100% | 98% | 762 mm Hg | SW 0.5 m/s | 0 |
| 01:00 | Fog | 19 °C | 86% (0.02 mm/hr) | 100% | 98% | 761 mm Hg | WSW 0.61 m/s | 0 |
| 02:00 | Fog | 19 °C | 100% (0.09 mm/hr) | 100% | 97% | 761 mm Hg | WSW 0.5 m/s | 0 |
| 03:00 | Fog | 19 °C | 67% (0.03 mm/hr) | 100% | 97% | 761 mm Hg | WSW 0.39 m/s | 0 |
| 04:00 | Fog | 19 °C | 76% (0.02 mm/hr) | 100% | 97% | 761 mm Hg | WSW 0.39 m/s | 0 |
| 05:00 | Fog | 19 °C | 69% (0.01 mm/hr) | 100% | 97% | 761 mm Hg | WSW 0.31 m/s | 0 |
| 06:00 |  Overcast | 19 °C | 0% | 100% | 97% | 761 mm Hg | W 0.19 m/s | 0.1 |
| 07:00 |  Patchy rain possible | 18 °C | 86% (0.01 mm/hr) | 100% | 97% | 762 mm Hg | WSW 0.19 m/s | 0.3 |
| 08:00 |  Patchy rain possible | 18 °C | 86% (0.02 mm/hr) | 100% | 96% | 762 mm Hg | WSW 0.19 m/s | 0.7 |
| 09:00 | Patchy rain possible | 18 °C | 85% (0.02 mm/hr) | 100% | 95% | 762 mm Hg | WNW 0.11 m/s | 1.1 |
| 10:00 | Patchy rain possible | 18 °C | 84% (0.01 mm/hr) | 100% | 94% | 762 mm Hg | NE 0.11 m/s | 2.2 |
| 11:00 | Patchy rain possible | 19 °C | 79% (0.04 mm/hr) | 100% | 92% | 763 mm Hg | S 0.19 m/s | 2.3 |
| 12:00 |  Light rain shower | 20 °C | 100% (0.24 mm/hr) | 100% | 91% | 762 mm Hg | NE 0.39 m/s | 2.8 |
| 13:00 | Light rain shower | 21 °C | 100% (0.2 mm/hr) | 100% | 90% | 762 mm Hg | E 0.39 m/s | 3.9 |
| 14:00 | Patchy rain possible | 22 °C | 100% (0.15 mm/hr) | 100% | 87% | 761 mm Hg | SE 0.81 m/s | 3.2 |
| 15:00 | Patchy rain possible | 22 °C | 100% (0.13 mm/hr) | 100% | 86% | 761 mm Hg | SE 1 m/s | 1.8 |
| 16:00 | Patchy rain possible | 22 °C | 100% (0.12 mm/hr) | 100% | 88% | 761 mm Hg | S 0.89 m/s | 0.6 |
| 17:00 | Light rain shower | 21 °C | 100% (0.29 mm/hr) | 100% | 94% | 761 mm Hg | S 0.69 m/s | 0.1 |
| 18:00 | Light rain shower | 20 °C | 100% (0.16 mm/hr) | 100% | 97% | 761 mm Hg | S 0.61 m/s | 0 |
| 19:00 | Light rain shower | 20 °C | 100% (0.35 mm/hr) | 100% | 98% | 761 mm Hg | SSE 0.61 m/s | 0 |
| 20:00 |  Light rain | 20 °C | 100% (0.86 mm/hr) | 100% | 99% | 761 mm Hg | SE 0.5 m/s | 0 |
| 21:00 |  Light rain shower | 20 °C | 100% (0.89 mm/hr) | 100% | 99% | 762 mm Hg | SE 0.5 m/s | 0 |
| 22:00 | Light rain | 20 °C | 100% (0.87 mm/hr) | 100% | 99% | 762 mm Hg | ESE 0.69 m/s | 0 |
| 23:00 |  Light drizzle | 18 °C | 100% (0.42 mm/hr) | 100% | 99% | 762 mm Hg | E 0.61 m/s | 0 |
