01Weather
Rio de Janeiro weather in August
Afternoons in August average 26.1 °C (79 °F) and nights cool to 17.6 °C (64 °F). Compared with July it is 0.1 °C cooler; September is 1.3 °C warmer again.
What the averages hide
| In a typical August | Value | What it means |
|---|---|---|
| Warm afternoons (90th percentile) | 31 °C / 89 °F | one day in ten is at least this warm |
| Cool afternoons (10th percentile) | 21 °C / 70 °F | one day in ten stays below this |
| Cold nights (10th percentile) | 16 °C / 60 °F | one night in ten is colder than this |
| Days above 30 °C (86 °F) | 6.1 | per month, average 2016–2025 |
| Nights at or below 0 °C (32 °F) | 0.0 | frost mornings per month |
| Hottest / coldest August day 2016–2025 | 34.7 °C / 13.4 °C | extremes in the ten-year record |
02Daylight
Sunrise, sunset and the length of the day
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 1 August | 06:26 | 17:31 | 11.1 h |
| 15 August | 06:17 | 17:36 | 11.3 h |
| 31 August | 06:04 | 17:42 | 11.6 h |
Daylight grows by about 30 minutes over the month. Times are local (America/Sao_Paulo).
03Crowds
How busy Rio de Janeiro is in August
moderate The main sights are moderate in August. What drives it:
- dry, mild
- fewer domestic travellers
04Public holidays
Public holidays in August 2027
No public holidays in Brazil fall in August, so shops and museums keep normal hours all month.
05Events
What's on in Rio de Janeiro in August
No major recurring events fall in August.
07Packing
What to pack for Rio de Janeiro in August
- light, breathable clothing
- sun hat and sunscreen
- refillable water bottle
- a compact umbrella for occasional showers
- something for heat: 6 days a month pass 30 °C on average
08Editor's notes
What the numbers don't tell you
August is dry, mild and quiet, with afternoons around 27 °C, the fewest domestic travellers and clear skies for the viewpoints. Sea temperatures are at their lowest, around 21 °C, though still warm by European standards. It is a good month for the colonial towns of Paraty and Petrópolis as day trips, and for the Tijuca Forest trails. Rain falls on about five days.
The Father's Day on the second Sunday fills the restaurants. The Flip literary festival in Paraty draws the country's writers in some years. The Copacabana beachfront is at its emptiest. Daylight grows from eleven hours to eleven and a half. For spring warmth, Independence Day and Rock in Rio in even years, see September.
09Compare
Rio de Janeiro month by month
| Month | High | Low | Rain days | Sun h | Crowds | Verdict |
|---|---|---|---|---|---|---|
| January | 31 °C | 24 °C | – | – | very busy | Mixed |
| February | 31 °C | 24 °C | – | – | very busy | Mixed |
| March | 31 °C | 23 °C | – | – | busy | Good |
| April | 29 °C | 21 °C | – | – | moderate | Excellent |
| May | 28 °C | 19 °C | – | – | moderate | Excellent |
| June | 27 °C | 18 °C | – | – | moderate | Excellent |
| July | 26 °C | 17 °C | – | – | busy | Excellent |
| August | 26 °C | 18 °C | – | – | moderate | Excellent |
| September | 27 °C | 20 °C | – | – | moderate | Excellent |
| October | 27 °C | 21 °C | – | – | moderate | Excellent |
| November | 28 °C | 22 °C | – | – | moderate | Excellent |
| December | 30 °C | 23 °C | – | – | very busy | Good |
Not sure about August? See the best time to visit Rio de Janeiro.
10Elsewhere
August in nearby cities
| City | High | Rain days |
|---|---|---|
| Buenos Aires in August | 17 °C | 8 |
| Miami in August | 33 °C | 16 |
| Cancún in August | 32 °C | – |
| Orlando in August | 33 °C | 12 |
| Lisbon in August | 29 °C | 1 |
| New York City in August | 29 °C | 8 |
11FAQ
Rio de Janeiro in August: your questions
Is August a good time to visit Rio de Janeiro?
August is one of the best months to visit Rio de Janeiro. Daytime highs average 26 °C (79 °F), and hotel arrivals run above the yearly average, so the main sights are moderate.
What is the weather like in Rio de Janeiro in August?
Expect warm days around 26 °C (79 °F) and nights near 18 °C (64 °F). One August in ten brings afternoons above 31 °C, and one in ten stays below 21 °C.
Does it rain a lot in Rio de Janeiro in August?
August in Rio de Janeiro, by the 1991–2020 station normals.
What should I wear in Rio de Janeiro in August?
Pack light, breathable clothing, sun hat and sunscreen, refillable water bottle.
Is Rio de Janeiro crowded in August?
The main sights are moderate in August. Main drivers: dry, mild; fewer domestic travellers.
What time does it get dark in Rio de Janeiro in August?
Around the middle of August the sun sets at about 17:36 and rises at 06:17, giving 11.3 hours of daylight.