5-day weather forecast Rio de Janeiro Sep 15, 2026
21°Weather forecast Rio de Janeiro today Sep 15, 2026: patchy rain possible, temperature from 19 °C to 21 °C.
Precipitation probability 88%. Wind up to 5.5 m/s (gusts 7.14 m/s). Air humidity 78–94%, atmospheric pressure 761–765 mm Hg, UV index up to 6.1.
5 days at a glance — tap a day to open it
Sunrise 05:49
Sunset 17:46
Sunset 17:46
Waxing Crescent23% illuminated
Moonrise 08:30 · Moonset 22:22
Moonrise 08:30 · Moonset 22:22
Chart
Table
Tue, Sep 15, 2026
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Moderate rain | 19 °C | 88% (4.1 mm/hr) | 100% | 92% | 764 mm Hg | WNW 303° 1.5 (1.5) m/s | 0 |
| 01:00 | Moderate rain | 19 °C | 86% (3.26 mm/hr) | 100% | 93% | 764 mm Hg | W 263° 1.19 (1.72) m/s | 0 |
| 02:00 |  Moderate or heavy rain shower | 19 °C | 86% (2.74 mm/hr) | 100% | 94% | 763 mm Hg | NNE 27° 1.31 (1.31) m/s | 0 |
| 03:00 |  Patchy rain possible | 19 °C | 32% (0.01 mm/hr) | 98% | 93% | 761 mm Hg | NNE 33° 5.5 (7.14) m/s | 0 |
| 04:00 |  Clear | 19 °C | 17% | 23% | 94% | 761 mm Hg | N 11° 4.39 (6.53) m/s | 0 |
| 05:00 |  Mist | 19 °C | 27% | 58% | 94% | 761 mm Hg | NNW 339° 1.89 (2.42) m/s | 0 |
| 06:00 | Patchy rain possible | 20 °C | 31% (0.07 mm/hr) | 66% | 94% | 762 mm Hg | SW 226° 2.19 (2.81) m/s | 0 |
| 07:00 | Patchy rain possible | 20 °C | 32% (0.11 mm/hr) | 59% | 93% | 763 mm Hg | SW 221° 2.69 (3.31) m/s | 0.4 |
| 08:00 |  Light rain shower | 20 °C | 46% (0.24 mm/hr) | 92% | 91% | 763 mm Hg | SW 224° 3.89 (4.5) m/s | 1.8 |
| 09:00 | Light rain shower | 20 °C | 48% (0.27 mm/hr) | 97% | 90% | 764 mm Hg | SW 234° 4 (4.81) m/s | 4 |
| 10:00 | Light rain shower | 20 °C | 43% (0.18 mm/hr) | 95% | 90% | 764 mm Hg | SW 236° 3.69 (4.72) m/s | 3.2 |
| 11:00 | Patchy rain possible | 20 °C | 38% (0.1 mm/hr) | 96% | 89% | 764 mm Hg | SW 231° 4 (5.14) m/s | 4.9 |
| 12:00 | Patchy rain possible | 21 °C | 22% (0.03 mm/hr) | 74% | 82% | 764 mm Hg | SW 236° 5.11 (5.83) m/s | 6.1 |
| 13:00 | Patchy rain possible | 21 °C | 21% (0.01 mm/hr) | 88% | 79% | 763 mm Hg | SW 235° 5.19 (6.11) m/s | 5.7 |
| 14:00 | Patchy rain possible | 21 °C | 19% (0.07 mm/hr) | 57% | 78% | 763 mm Hg | SW 236° 5.31 (6.53) m/s | 4 |
| 15:00 | Patchy rain possible | 21 °C | 36% (0.26 mm/hr) | 77% | 81% | 763 mm Hg | WSW 246° 5 (6.53) m/s | 2.3 |
| 16:00 | Light rain shower | 21 °C | 42% (0.26 mm/hr) | 96% | 82% | 763 mm Hg | WSW 246° 5.31 (6.72) m/s | 1 |
| 17:00 | Light rain shower | 20 °C | 41% (0.18 mm/hr) | 100% | 86% | 763 mm Hg | WSW 252° 4.81 (6.31) m/s | 0.3 |
| 18:00 |  Light rain shower | 20 °C | 37% (0.23 mm/hr) | 68% | 88% | 763 mm Hg | WSW 258° 3.61 (5.11) m/s | 0 |
| 19:00 | Patchy rain possible | 20 °C | 26% (0.01 mm/hr) | 80% | 90% | 763 mm Hg | WSW 256° 3 (4.39) m/s | 0 |
| 20:00 | Patchy rain possible | 20 °C | 37% (0.1 mm/hr) | 90% | 89% | 764 mm Hg | WSW 252° 3.5 (5.03) m/s | 0 |
| 21:00 | Light rain shower | 19 °C | 51% (0.52 mm/hr) | 57% | 90% | 765 mm Hg | WSW 254° 3 (3.83) m/s | 0 |
| 22:00 | Light rain shower | 19 °C | 60% (0.6 mm/hr) | 83% | 91% | 765 mm Hg | WNW 300° 1.69 (6.69) m/s | 0 |
| 23:00 | Light rain shower | 19 °C | 58% (0.46 mm/hr) | 95% | 91% | 764 mm Hg | W 267° 1.11 (1.53) m/s | 0 |
Tue, Sep 15, 2026
Frequently asked questions about the 5-day weather in Rio de Janeiro
What will the weather be like in Rio de Janeiro over the next 5 days?
Over the next 5 days in Rio de Janeiro the temperature is expected to range from about 18 to 23 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in Rio de Janeiro?
The chance of rain in Rio de Janeiro over the next 5 days reaches 88%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for Rio de Janeiro?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in Rio de Janeiro will be the warmest and which the coolest?
Over the next 5 days the temperature in Rio de Janeiro ranges from about 18 to 23 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in Rio de Janeiro over the next 5 days?
Over the next 5 days the wind in Rio de Janeiro picks up to 6 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in Rio de Janeiro is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 88%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for Rio de Janeiro?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.
Will I need an umbrella or sunscreen in Rio de Janeiro this week?
Rain reaches a 88% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 6.1; sunscreen is worth it from about 3 upwards.
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.