Weather on May 21 in Perth
Historical weather data for May 21 in Perth, Australia
Based on 54 years of data from PERTH REGIONAL OFFICE
About This Date
May 21st in Perth, Australia typically brings pleasant spring weather, with average highs around 21°C and lows near 11°C. Over 54 years of records, the warmest May 21st was in 1980 (21°C average), while the coldest was 2011 (11°C) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 54% of May 21st dates historically, with the wettest May 21st recording 4.26" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for May 21st in Perth? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2026 | -- | 9°C (48°F) | 0" |
| 2025 | 25°C (77°F) | 8°C (47°F) | 0" |
| 2024 | 27°C (80°F) | 11°C (52°F) | 0" |
| 2023 | 22°C (71°F) | 9°C (48°F) | 0" |
| 2022 | 26°C (78°F) | 14°C (57°F) | 0.02" |
| 2021 | 23°C (74°F) | 9°C (49°F) | 0" |
| 2020 | 21°C (70°F) | 4°C (40°F) | 0" |
| 2019 | 21°C (69°F) | 13°C (55°F) | 0.04" |
| 2018 | 26°C (78°F) | 6°C (43°F) | 0" |
| 2017 | 18°C (65°F) | 12°C (54°F) | 1.72" |
| 2016 | 18°C (64°F) | 15°C (59°F) | 3.64" |
| 2015 | 19°C (67°F) | 9°C (49°F) | 0" |
| 2014 | 21°C (70°F) | 14°C (58°F) | 1.28" |
| 2013 | 21°C (70°F) | 8°C (46°F) | 0.1" |
| 2012 | 26°C (78°F) | 8°C (47°F) | 0" |
| 2011 | 18°C (64°F) | 4°C (40°F) | 1.46" |
| 2010 | 23°C (74°F) | 14°C (58°F) | 0" |
| 2009 | 24°C (75°F) | 16°C (61°F) | 1.22" |
| 2008 | 24°C (75°F) | 7°C (44°F) | 0" |
| 2007 | 18°C (64°F) | 5°C (41°F) | 0" |
| 2006 | 26°C (78°F) | 12°C (54°F) | 0" |
| 2005 | 23°C (73°F) | 16°C (60°F) | 0.14" |
| 2004 | 18°C (64°F) | 12°C (54°F) | 0" |
| 2003 | 22°C (71°F) | 16°C (60°F) | 1.5" |
| 2002 | 19°C (66°F) | 10°C (50°F) | 0.04" |
| 2001 | 22°C (72°F) | 13°C (55°F) | 0.04" |
| 2000 | 22°C (72°F) | 6°C (42°F) | 0" |
| 1999 | 20°C (68°F) | 14°C (57°F) | 0.38" |
| 1998 | 23°C (73°F) | 14°C (57°F) | 0.24" |
| 1997 | 21°C (69°F) | 8°C (46°F) | 0" |
| 1996 | 23°C (74°F) | 6°C (43°F) | 0" |
| 1995 | 22°C (72°F) | 12°C (54°F) | 0.12" |
| 1994 | 21°C (70°F) | 10°C (50°F) | 0.64" |
| 1991 | 19°C (67°F) | 17°C (62°F) | 0.28" |
| 1990 | 22°C (72°F) | 13°C (55°F) | 0" |
| 1989 | 19°C (67°F) | 13°C (55°F) | 2.04" |
| 1988 | 20°C (68°F) | 14°C (58°F) | 1.84" |
| 1987 | 20°C (68°F) | 9°C (49°F) | 0" |
| 1986 | 17°C (62°F) | 13°C (55°F) | 4.26" |
| 1985 | 27°C (81°F) | 14°C (58°F) | 0" |
| 1984 | 20°C (68°F) | 15°C (59°F) | 0.3" |
| 1983 | 23°C (73°F) | 11°C (51°F) | 0" |
| 1982 | 21°C (70°F) | 13°C (56°F) | 0" |
| 1981 | 18°C (65°F) | 16°C (60°F) | 0.52" |
| 1980 | 27°C (80°F) | 16°C (60°F) | 0" |
| 1979 | 16°C (60°F) | 9°C (48°F) | 2.58" |
| 1978 | 20°C (68°F) | 14°C (58°F) | 1.7" |
| 1977 | 20°C (68°F) | 9°C (48°F) | 0.04" |
| 1976 | 21°C (69°F) | 13°C (56°F) | 0.7" |
| 1975 | 17°C (63°F) | 9°C (49°F) | 0.84" |
| 1974 | 19°C (66°F) | 9°C (49°F) | 0" |
| 1973 | 19°C (67°F) | 16°C (60°F) | 1.27" |
| 1972 | 25°C (77°F) | 11°C (52°F) | 0" |
| 1971 | 18°C (65°F) | 9°C (49°F) | 0.71" |