Weather on August 21 in Rio de Janeiro

Historical weather data for August 21 in Rio de Janeiro, Brazil

Avg High26°C (78°F)
Avg Low16°C (61°F)
Warmest202124°C
Coldest198118°C

Based on 29 years of data from RIO DE JANEIRO

About This Date

August 21st in Rio de Janeiro, Brazil typically brings pleasant summer weather, with average highs around 26°C and lows near 16°C. Over 29 years of records, the warmest August 21st was in 2021 (24°C average), while the coldest was 1981 (18°C) — a 12°F range across recorded history. Rain or other precipitation has occurred on about 24% of August 21st dates historically, with the wettest August 21st recording 3.4" of rain.

Planning for August 21st in Rio de Janeiro? Great weather for outdoor activities.

Year by Year History

YearHighLowPrecip
2025--18°C (65°F)0"
2024--21°C (69°F)--
2023--18°C (65°F)--
202132°C (90°F)17°C (62°F)--
202023°C (73°F)--2.21"
201627°C (81°F)----
2015--18°C (65°F)0.03"
2014--7°C (45°F)--
201222°C (71°F)13°C (56°F)--
2011--12°C (54°F)--
201025°C (77°F)----
2008--12°C (54°F)--
200727°C (80°F)13°C (55°F)--
200627°C (81°F)--3.4"
2005--19°C (66°F)--
2004--17°C (63°F)0"
2003--15°C (59°F)0"
200230°C (86°F)----
200129°C (84°F)19°C (66°F)--
2000--18°C (64°F)--
1999--13°C (55°F)--
1986--20°C (68°F)1.6"
198322°C (71°F)17°C (62°F)0.89"
198223°C (73°F)16°C (60°F)0"
198120°C (68°F)16°C (61°F)0.41"
1979--19°C (66°F)0.41"
1977--18°C (64°F)0"
1975--18°C (64°F)--
1974--16°C (61°F)0"

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