Rio de Janeiro Weather in August

August in Rio de Janeiro brings high temperatures, with daytime highs of 27°C (81°F) and nights around 18°C (64°F). Rainfall is at its lowest this month, making it one of the more reliable months to be outdoors.

Rainfall in Rio de Janeiro in August

Expect fewer clouds and less rain as the month goes on. This makes it an ideal time for outdoor activities. Rain is expected on roughly 9 days, totalling around 45 mm (1.8 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Rio de Janeiro in August

August is a good time to be in Rio de Janeiro. Days are excellent, reaching 27°C (81°F), with nights around 18°C (64°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 18°C (64°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Rio de Janeiro in August

The city usually sees around 182 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Rio de Janeiro in August

Wind speeds average 3 m/s (6 knots) during August. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in August

With water at 21°C (70°F), conditions are good for swimming and other water activities. You won't need a wetsuit and most people find it very comfortable.

If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.