16-day forecast — Rio de Janeiro
Updated every hour
Fri · Today
Clear
+24°
+18°
1.3 mm
Wind19 km/h E
Gusts37 km/h
UV index10 – Very high
Chance of rain57%
Sunrise05:39
Sunset17:49
Sat · Tomorrow
Clear
+26°
+21°
14%
Wind13 km/h SE
Gusts24 km/h
UV index11 – Very high
Chance of rain14%
Sunrise05:38
Sunset17:49
Sunday 27/9
Clear
+24°
+21°
24%
Wind14 km/h S
Gusts31 km/h
UV index9 – Very high
Chance of rain24%
Sunrise05:37
Sunset17:50
Monday 28/9
Showers
+26°
+22°
1.2 mm
Wind20 km/h E
Gusts33 km/h
UV index10 – Very high
Chance of rain69%
Sunrise05:36
Sunset17:50
Tuesday 29/9
Clear
+28°
+22°
1.1 mm
Wind16 km/h E
Gusts30 km/h
UV index11 – Extreme
Chance of rain57%
Sunrise05:35
Sunset17:50
Wednesday 30/9
Clear
+25°
+22°
1.6 mm
Wind21 km/h SW
Gusts31 km/h
UV index7 – High
Chance of rain60%
Sunrise05:34
Sunset17:51
Thursday 1/10
Showers
+22°
+18°
12.2 mm
Wind21 km/h SW
Gusts28 km/h
UV index6 – High
Chance of rain92%
Sunrise05:33
Sunset17:51
Friday 2/10
Showers
+18°
+17°
41.9 mm
Wind21 km/h S
Gusts26 km/h
UV index5 – Moderate
Chance of rain93%
Sunrise05:32
Sunset17:51
Saturday 3/10
Cloudy
+20°
+18°
1.2 mm
Wind13 km/h NE
Gusts25 km/h
UV index5 – Moderate
Chance of rain75%
Sunrise05:31
Sunset17:52
Sunday 4/10
Clear
+29°
+20°
11%
Wind13 km/h NE
Gusts26 km/h
UV index8 – Very high
Chance of rain11%
Sunrise05:30
Sunset17:52
Monday 5/10
Cloudy
+29°
+23°
20%
Wind13 km/h SW
Gusts26 km/h
UV index8 – Very high
Chance of rain20%
Sunrise05:29
Sunset17:53
Tuesday 6/10
Cloudy
+22°
+21°
6.1 mm
Wind18 km/h W
Gusts26 km/h
UV index6 – High
Chance of rain89%
Sunrise05:28
Sunset17:53
Wednesday 7/10
Showers
+23°
+21°
1.9 mm
Wind17 km/h E
Gusts29 km/h
UV index6 – High
Chance of rain79%
Sunrise05:27
Sunset17:53
Thursday 8/10
Clear
+24°
+21°
19%
Wind21 km/h E
Gusts33 km/h
UV index7 – High
Chance of rain19%
Sunrise05:26
Sunset17:54
Saturday 10/10
Showers
+27°
+20°
4.4 mm
Wind17 km/h SE
Gusts28 km/h
UV index6 – High
Chance of rain—
Sunrise05:24
Sunset17:54
Sunday 11/10
Showers
+27°
+20°
2.1 mm
Wind17 km/h SE
Gusts30 km/h
UV index6 – High
Chance of rain—
Sunrise05:23
Sunset17:55
About Rio de Janeiro
Zuckerhut und Copacabana — tropisch, Hochsommer von Dezember bis März.
CountryBrazil
RegionRio de Janeiro
ContinentSouth America
Time zoneAmerica/Sao_Paulo (-03:00)
Latitude-22.9064°
Longitude-43.1822°
Air qualityModerate (EAQI 42)
Climate in Rio de Janeiro in August
Normals 8 years · best time to visit · Open-MeteoBest time to visit Rio de Janeiro: January–December. With good weather, August is a recommended month to visit.
| July | August | September | |
|---|---|---|---|
| Average temperature | → 21°C | 21°C | ▲ 22°C |
| Highest temperature | → 25°C | 25°C | ▲ 26°C |
| Lowest temperature | → 18°C | 18°C | ▲ 20°C |
| Sea temperature | ▼ 22,2°C | 22,0°C | ▲ 22,4°C |
| Precipitation | ▲ 47 mm | 66 mm | → 66 mm |
| Days with precipitation | ▲ 7 d | 10 d | ▼ 9 d |
| Humidity | ▼ 81% | 76% | ▼ 74% |
| Sunshine hours per day | ▼ 9,2 h | 9,0 h | ▲ 9,8 h |
| Cloud cover | ▲ 16% | 20% | ▼ 18% |
| UV index (midday) | ▲ 6 | 8 | ▲ 10 |
| Day length | 10:53 | 11:21 | 11:58 |
| Our rating | Perfect | Good | Good |
Temperature day by day in August mean + moving average
Precipitation day by day in August mm
UV index day by day in August midday value, clear-sky
Climate normals calculated from Open-Meteo (ERA5 archive 8 years, sea temperature Marine API). UV estimated from solar elevation.
Other destinations in South America
Weather Rio de Janeiro
Data source
Global weather models — international forecasts
Weather in Rio de Janeiro (Brazil): current conditions plus a 24-hour and 16-day forecast for planning your trip. Right now on the ground: +22°, partly cloudy, wind 14 km/h. Over the next 7 days temperatures range between 18 and 28 °C, with 5 fine days and 18 mm of rain. Climatologically, highs in September are around 26 °C, with a sea temperature of about 22 °C. Best time to visit: usually January–December. Local time (time zone America/Sao_Paulo). Data from Open-Meteo and WeatherAPI.