Weather on May 21 in Rio de Janeiro
Historical weather data for May 21 in Rio de Janeiro, Brazil
Avg High27°C (80°F)
Avg Low18°C (64°F)
Warmest202427°C
Coldest201514°C
Based on 28 years of data from RIO DE JANEIRO
About This Date
May 21st in Rio de Janeiro, Brazil typically brings warm spring weather, with average highs around 27°C and lows near 18°C. Over 28 years of records, the warmest May 21st was in 2024 (27°C average), while the coldest was 2015 (14°C) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 11% of May 21st dates historically, with the wettest May 21st recording 0.79" of rain.
Planning for May 21st in Rio de Janeiro? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 30°C (86°F) | -- | 0" |
| 2024 | 32°C (90°F) | 22°C (71°F) | 0.03" |
| 2021 | -- | 19°C (67°F) | 0" |
| 2020 | -- | 17°C (62°F) | 0" |
| 2019 | -- | 21°C (69°F) | -- |
| 2017 | -- | 21°C (69°F) | 0" |
| 2016 | -- | 9°C (49°F) | 0" |
| 2015 | 20°C (68°F) | 9°C (48°F) | 0.05" |
| 2014 | -- | 19°C (66°F) | -- |
| 2013 | -- | 21°C (69°F) | -- |
| 2011 | -- | 13°C (55°F) | 0" |
| 2010 | 24°C (76°F) | 14°C (57°F) | 0" |
| 2009 | 23°C (74°F) | 14°C (58°F) | -- |
| 2006 | 30°C (86°F) | 19°C (66°F) | -- |
| 2005 | -- | 23°C (73°F) | 0" |
| 2004 | 22°C (72°F) | -- | -- |
| 2003 | -- | 20°C (68°F) | 0" |
| 2002 | 29°C (84°F) | 22°C (72°F) | -- |
| 2001 | -- | 18°C (64°F) | -- |
| 2000 | -- | 11°C (52°F) | -- |
| 1983 | 28°C (82°F) | -- | 0" |
| 1982 | 24°C (75°F) | 18°C (65°F) | 0" |
| 1981 | 29°C (84°F) | 21°C (70°F) | 0" |
| 1979 | 27°C (81°F) | 21°C (70°F) | 0" |
| 1977 | -- | 16°C (61°F) | 0" |
| 1976 | 29°C (84°F) | 20°C (68°F) | -- |
| 1975 | -- | 17°C (63°F) | -- |
| 1974 | 24°C (75°F) | 19°C (66°F) | 0.79" |