Rio De Janeiro weather by month & the best time to visit
Brazil · major coastal city · tropical monsoon climate
The best time to visit Rio De Janeiro is August — its sunniest month (Sunshine Score 85/100), with July and June close behind. Rio De Janeiro averages about 2,288 hours of sunshine a year. Daytime highs around 25°C / 77°F and roughly 42 mm of rain in August.
When is the best time to visit Rio De Janeiro?
For sunshine, the best time to visit Rio De Janeiro is August, then July and June. The dullest month is January (65/100, 208 mm of rain). The full month-by-month picture is in the table below.
How sunny is Rio De Janeiro?
Rio De Janeiro gets a moderate 2,288 hours of sunshine a year. August (85/100) is noticeably better than January (65). It ranks #94 of 131 destinations in Brazil for annual sunshine, below the national median of 2,486 hours. Rain has a clear season: the wettest stretch, around December, carries about 45% of the annual 1,470 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 65 | 29° / 84°F | 24° / 75°F | 208 mm | 10 | 27° / 81°F |
| February | 65 | 29° / 84°F | 24° / 75°F | 152 mm | 11 | 28° / 82°F |
| March | 65 | 28° / 82°F | 24° / 75°F | 173 mm | 9 | 27° / 81°F |
| April | 74 | 27° / 81°F | 22° / 72°F | 101 mm | 8 | 25° / 77°F |
| May | 79 | 25° / 77°F | 20° / 68°F | 71 mm | 6 | 25° / 77°F |
| June | 83 | 25° / 77°F | 19° / 66°F | 49 mm | 5 | 24° / 75°F |
| July | 84 | 25° / 77°F | 18° / 64°F | 45 mm | 5 | 23° / 73°F |
| August | 85 | 25° / 77°F | 18° / 64°F | 42 mm | 6 | 23° / 73°F |
| September | 80 | 26° / 79°F | 19° / 66°F | 69 mm | 7 | 24° / 75°F |
| October | 72 | 27° / 81°F | 20° / 68°F | 108 mm | 8 | 23° / 73°F |
| November | 65 | 27° / 81°F | 21° / 70°F | 220 mm | 8 | 22° / 72°F |
| December | 65 | 28° / 82°F | 23° / 73°F | 232 mm | 9 | 26° / 79°F |
Sea temperature in Rio De Janeiro by month
The sea off Rio De Janeiro is warmest in February at around 28°C / 82°F, and coolest in November at 22°C / 72°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
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Head-to-head
How Rio De Janeiro compares month by month: Rio De Janeiro vs São Paulo · Rio De Janeiro vs Belo Horizonte · Rio De Janeiro vs Campinas · Rio De Janeiro vs Vitória · all comparisons
Rio De Janeiro: questions and answers
What kind of destination is Rio De Janeiro?
Rio De Janeiro is a major coastal city in Brazil with a tropical monsoon climate — the sea reaches 28°C at its warmest and is swimmable (21°C+) year-round.
How many hours of sunshine does Rio De Janeiro get a year?
Rio De Janeiro gets about 2,288 hours of sunshine a year, at its best around August.
When is the best time to visit Rio De Janeiro?
The sunniest time to visit Rio De Janeiro is August, when the Sunshine Score peaks at 85/100 (with July and June close behind). Expect daytime highs around 25°C / 77°F.
What is the least sunny month in Rio De Janeiro?
January is the least sunny month in Rio De Janeiro, scoring 65/100 with about 208 mm of rain.
What is the sea temperature in Rio De Janeiro?
The sea in Rio De Janeiro ranges from about 22°C (November) to 28°C (February). Month-by-month sea temperatures are on this page.
How strong is the sun in Rio De Janeiro?
The typical midday UV index in Rio De Janeiro peaks around 11 (extreme) in February, easing to about 5 (moderate) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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