Rio de Janeiro, Brazil 14-Day Forecast
Brazil 🇧🇷
67°
Patchy rain nearby right now
Today: high 70°, low 65°
Updated 3 min ago
Rio de Janeiro weather for the next 14 days
Wednesday, September 16
Light rain shower High 68° Low 65°Precipitation
88%
· 0.26 in
Max wind
10 mph
Humidity
87%
UV index
3 - Moderate
Sunrise / sunset
05:48 AM / 05:46 PM
Thursday, September 17
Patchy rain nearby High 66° Low 65°Precipitation
85%
· 0.18 in
Max wind
10 mph
Humidity
85%
UV index
2 - Low
Sunrise / sunset
05:47 AM / 05:47 PM
Friday, September 18
Patchy rain nearby High 70° Low 65°Precipitation
68%
· 0.04 in
Max wind
14 mph
Humidity
85%
UV index
6 - High
Sunrise / sunset
05:46 AM / 05:47 PM
Saturday, September 19
Overcast High 74° Low 65°Precipitation
23%
· 0.0 in
Max wind
14 mph
Humidity
80%
UV index
8 - Very High
Sunrise / sunset
05:45 AM / 05:47 PM
Sunday, September 20
Cloudy High 77° Low 68°Precipitation
57%
· 0.03 in
Max wind
8 mph
Humidity
79%
UV index
8 - Very High
Sunrise / sunset
05:44 AM / 05:48 PM
Monday, September 21
Patchy rain nearby High 73° Low 70°Precipitation
88%
· 0.26 in
Max wind
11 mph
Humidity
90%
UV index
6 - High
Sunrise / sunset
05:43 AM / 05:48 PM
Tuesday, September 22
Sunny High 81° Low 69°Precipitation
68%
· 0.08 in
Max wind
7 mph
Humidity
83%
UV index
8 - Very High
Sunrise / sunset
05:42 AM / 05:48 PM
Wednesday, September 23
Overcast High 80° Low 72°Precipitation
23%
· 0.0 in
Max wind
8 mph
Humidity
85%
UV index
7 - High
Sunrise / sunset
05:41 AM / 05:49 PM
Thursday, September 24
Overcast High 74° Low 72°Precipitation
32%
· 0.0 in
Max wind
8 mph
Humidity
85%
UV index
6 - High
Sunrise / sunset
05:40 AM / 05:49 PM
Friday, September 25
Sunny High 86° Low 72°Precipitation
57%
· 0.05 in
Max wind
7 mph
Humidity
75%
UV index
8 - Very High
Sunrise / sunset
05:39 AM / 05:49 PM
Saturday, September 26
Sunny High 87° Low 74°Precipitation
6%
· 0.0 in
Max wind
7 mph
Humidity
72%
UV index
9 - Very High
Sunrise / sunset
05:38 AM / 05:49 PM
Sunday, September 27
Overcast High 78° Low 72°Precipitation
19%
· 0.0 in
Max wind
8 mph
Humidity
86%
UV index
8 - Very High
Sunrise / sunset
05:37 AM / 05:50 PM
Monday, September 28
Overcast High 79° Low 72°Precipitation
67%
· 0.04 in
Max wind
12 mph
Humidity
87%
UV index
7 - High
Sunrise / sunset
05:36 AM / 05:50 PM
Rio de Janeiro 14-day outlook: the story
The warmest day of Rio de Janeiro's 14-day outlook is Saturday, September 26 with a high near 87°F (31°C); the coolest night comes Thursday, September 17, dipping to 65°F (18°C). The trend points warmer: week two runs about 10°F above week one. Highs over the next two weeks average 71°F (22°C), about 9°F (5°C) below the typical September high of 80°F (27°C).
Precipitation is most likely on Tuesday 15, Wednesday 16, Thursday 17, Friday 18 and beyond; the wettest day looks like Tuesday, September 15 with about 0.54 in (13.8 mm) expected. For the weekend, expect Saturday 74°F (23°C) and overcast / Sunday 77°F (25°C) and cloudy.
For typical conditions month by month, see the Rio de Janeiro climate & average temperatures guide.
Rio de Janeiro forecast questions
Will it rain in Rio de Janeiro this week?
The forecast currently shows meaningful precipitation chances on 9 of the next 14 days, peaking around Tuesday, September 15.
What will be the warmest day in Rio de Janeiro over the next 14 days?
Saturday, September 26, with a forecast high near 87°F (31°C).
How accurate is a 14-day forecast for Rio de Janeiro?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Rio de Janeiro by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 87° | 75° | 15 | 6.3 in | 10.5 h/day | 79% |
| February | 86° | 75° | 15 | 5.9 in | 10.1 h/day | 81% |
| March | 85° | 74° | 14 | 6.0 in | 10.4 h/day | 82% |
| April | 81° | 71° | 12 | 3.2 in | 10.1 h/day | 81% |
| May | 78° | 68° | 10 | 2.5 in | 9.2 h/day | 81% |
| June | 77° | 66° | 9 | 1.6 in | 9.0 h/day | 80% |
| July | 77° | 65° | 7 | 1.6 in | 9.0 h/day | 79% |
| August | 78° | 64° | 10 | 2.5 in | 9.0 h/day | 78% |
| September | 80° | 67° | 9 | 2.8 in | 9.6 h/day | 79% |
| October | 80° | 69° | 15 | 3.5 in | 9.1 h/day | 81% |
| November | 81° | 70° | 16 | 5.8 in | 9.6 h/day | 82% |
| December | 84° | 73° | 16 | 5.4 in | 10.4 h/day | 82% |