16-day forecast — Rio de Janeiro
Updated every hour
Thu · Today
Showers
+20°
+18°
0.8 mm
Wind14 km/h E
Gusts21 km/h
UV index5 – Moderate
Chance of rain63%
Sunrise05:40
Sunset17:49
Fri · Tomorrow
Clear
+24°
+19°
1.1 mm
Wind19 km/h E
Gusts31 km/h
UV index10 – Very high
Chance of rain57%
Sunrise05:39
Sunset17:49
Saturday 26/9
Clear
+27°
+21°
11%
Wind13 km/h SE
Gusts27 km/h
UV index11 – Extreme
Chance of rain11%
Sunrise05:38
Sunset17:49
Sunday 27/9
Clear
+25°
+21°
0.7 mm
Wind21 km/h SW
Gusts38 km/h
UV index11 – Very high
Chance of rain50%
Sunrise05:37
Sunset17:50
Monday 28/9
Showers
+25°
+22°
1.3 mm
Wind15 km/h SE
Gusts26 km/h
UV index10 – Very high
Chance of rain69%
Sunrise05:36
Sunset17:50
Tuesday 29/9
Fog
+28°
+21°
0.4 mm
Wind17 km/h E
Gusts24 km/h
UV index8 – Very high
Chance of rain42%
Sunrise05:35
Sunset17:50
Wednesday 30/9
Cloudy
+26°
+22°
1.4 mm
Wind25 km/h SW
Gusts33 km/h
UV index7 – High
Chance of rain74%
Sunrise05:34
Sunset17:51
Thursday 1/10
Fog
+22°
+21°
2.8 mm
Wind12 km/h S
Gusts14 km/h
UV index6 – High
Chance of rain86%
Sunrise05:33
Sunset17:51
Friday 2/10
Showers
+21°
+19°
39.6 mm
Wind20 km/h SE
Gusts32 km/h
UV index6 – High
Chance of rain93%
Sunrise05:32
Sunset17:51
Saturday 3/10
Showers
+21°
+19°
3.0 mm
Wind16 km/h E
Gusts33 km/h
UV index7 – High
Chance of rain77%
Sunrise05:31
Sunset17:52
Sunday 4/10
Clear
+28°
+20°
9%
Wind12 km/h NE
Gusts17 km/h
UV index8 – Very high
Chance of rain9%
Sunrise05:30
Sunset17:52
Monday 5/10
Clear
+29°
+22°
9%
Wind13 km/h N
Gusts27 km/h
UV index7 – High
Chance of rain9%
Sunrise05:29
Sunset17:53
Tuesday 6/10
Clear
+27°
+22°
13%
Wind14 km/h S
Gusts28 km/h
UV index8 – Very high
Chance of rain13%
Sunrise05:28
Sunset17:53
Wednesday 7/10
Clear
+24°
+21°
16%
Wind14 km/h S
Gusts32 km/h
UV index7 – High
Chance of rain16%
Sunrise05:27
Sunset17:53
Friday 9/10
Showers
+26°
+20°
5.0 mm
Wind18 km/h SE
Gusts29 km/h
UV index6 – High
Chance of rain—
Sunrise05:25
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
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 qualityPoor (EAQI 61)
Climate in Rio de Janeiro in September
Normals 8 years · best time to visit · Open-MeteoBest time to visit Rio de Janeiro: January–December. With good weather, September is a recommended month to visit.
| August | September | October | |
|---|---|---|---|
| Average temperature | ▲ 21°C | 22°C | ▲ 23°C |
| Highest temperature | ▲ 25°C | 26°C | → 26°C |
| Lowest temperature | ▲ 18°C | 20°C | ▲ 21°C |
| Sea temperature | ▲ 22,0°C | 22,4°C | ▼ 21,3°C |
| Precipitation | → 66 mm | 66 mm | ▲ 93 mm |
| Days with precipitation | ▼ 10 d | 9 d | ▲ 16 d |
| Humidity | ▼ 76% | 74% | ▲ 79% |
| Sunshine hours per day | ▲ 9,0 h | 9,8 h | ▼ 9,2 h |
| Cloud cover | ▼ 20% | 18% | ▲ 27% |
| UV index (midday) | ▲ 8 | 10 | ▲ 11 |
| Day length | 11:21 | 11:58 | 12:38 |
| Our rating | Good | Good | Good |
Temperature day by day in September mean + moving average
Precipitation day by day in September mm
UV index day by day in September 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: +20°, cloudy, wind 14 km/h. Over the next 7 days temperatures range between 18 and 28 °C, with 3 fine days and 6 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.