Rio de Janeiro, Brazil: Annual Weather Averages
February is the hottest month in Rio de Janeiro with an average temperature of 27°C (81°F) and the coldest is July at 21°C (70°F) with the most daily sunshine hours at 7 in August. The wettest month is December with an average of 169mm of rain. The best month to swim in the sea is in March when the average sea temperature is 26°C (79°F).
Average Temperature: Rio de Janeiro
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 26 | 27 | 26 | 25 | 23 | 22 | 21 | 22 | 22 | 23 | 24 | 25 |
| °F | 79 | 81 | 79 | 77 | 73 | 72 | 70 | 72 | 72 | 73 | 75 | 77 |
Average High/Low Temperature: Rio de Janeiro
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 30 | 30 | 29 | 28 | 26 | 25 | 25 | 26 | 25 | 26 | 27 | 29 |
| Low °C | 23 | 24 | 23 | 22 | 20 | 19 | 18 | 19 | 19 | 20 | 21 | 22 |
| High °F | 86 | 86 | 84 | 82 | 79 | 77 | 77 | 79 | 77 | 79 | 81 | 84 |
| Low °F | 73 | 75 | 73 | 72 | 68 | 66 | 64 | 66 | 66 | 68 | 70 | 72 |
Average Day/Night Temperature: Rio de Janeiro
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | 29 | 29 | 28 | 27 | 24 | 24 | 23 | 23 | 24 | 25 | 25 | 28 |
| Night °C | 27 | 27 | 26 | 24 | 22 | 22 | 21 | 21 | 22 | 23 | 23 | 25 |
| Day °F | 85 | 85 | 82 | 80 | 76 | 74 | 73 | 74 | 76 | 78 | 78 | 82 |
| Night °F | 80 | 80 | 78 | 76 | 72 | 71 | 69 | 70 | 72 | 73 | 74 | 78 |
Average Rainfall: Rio de Janeiro
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 114 | 105 | 103 | 137 | 86 | 80 | 56 | 51 | 87 | 88 | 96 | 169 |
| Days | 13 | 11 | 12 | 10 | 10 | 7 | 7 | 7 | 11 | 13 | 13 | 14 |
Average Daily Sunshine Hours: Rio de Janeiro
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 5 | 5 | 6 | 6 |
Average Sea Temperature: Rio de Janeiro
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 25 | 25 | 26 | 25 | 24 | 23 | 22 | 22 | 22 | 23 | 23 | 24 |
| °F | 77 | 77 | 79 | 77 | 75 | 73 | 72 | 72 | 72 | 73 | 73 | 75 |
