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

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