Weather on July 21 in Perth
Historical weather data for July 21 in Perth, Australia
Based on 54 years of data from PERTH REGIONAL OFFICE
About This Date
July 21st in Perth, Australia typically brings mild summer weather, with average highs around 18°C and lows near 9°C. Over 54 years of records, the warmest July 21st was in 2017 (17°C average), while the coldest was 2013 (9°C) — a 14°F range across recorded history. Rain or other precipitation has occurred on about 67% of July 21st dates historically, with the wettest July 21st recording 1.17" 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 July 21st in Perth? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 18°C (64°F) | 7°C (44°F) | 0 mm |
| 2025 | 15°C (59°F) | 3°C (38°F) | 24 mm |
| 2024 | 20°C (68°F) | 13°C (56°F) | 1 mm |
| 2023 | 19°C (66°F) | 10°C (50°F) | 7 mm |
| 2022 | 18°C (65°F) | 13°C (55°F) | 14 mm |
| 2021 | 18°C (65°F) | 13°C (55°F) | 30 mm |
| 2020 | 21°C (69°F) | 5°C (41°F) | 0 mm |
| 2019 | 19°C (67°F) | 12°C (53°F) | 6 mm |
| 2018 | 20°C (68°F) | 12°C (54°F) | 5 mm |
| 2017 | 21°C (69°F) | 13°C (56°F) | 5 mm |
| 2016 | 16°C (60°F) | 9°C (48°F) | 15 mm |
| 2015 | 18°C (64°F) | 9°C (48°F) | 9 mm |
| 2014 | 17°C (62°F) | 9°C (48°F) | 3 mm |
| 2013 | 16°C (61°F) | 3°C (38°F) | 0 mm |
| 2012 | 23°C (74°F) | 4°C (40°F) | 0 mm |
| 2011 | 20°C (68°F) | 8°C (47°F) | 4 mm |
| 2010 | 20°C (68°F) | 6°C (42°F) | 0 mm |
| 2009 | 16°C (61°F) | 8°C (47°F) | 10 mm |
| 2008 | 17°C (63°F) | 3°C (38°F) | 0 mm |
| 2007 | 18°C (64°F) | 9°C (48°F) | 2 mm |
| 2006 | 14°C (58°F) | 9°C (48°F) | 14 mm |
| 2005 | 17°C (62°F) | 13°C (55°F) | 15 mm |
| 2004 | 21°C (69°F) | 12°C (53°F) | 6 mm |
| 2003 | 17°C (63°F) | 8°C (46°F) | 0 mm |
| 2002 | 20°C (68°F) | 13°C (55°F) | 0 mm |
| 2001 | 18°C (64°F) | 8°C (46°F) | 8 mm |
| 2000 | 18°C (65°F) | 11°C (51°F) | 4 mm |
| 1999 | 21°C (69°F) | 10°C (50°F) | 0 mm |
| 1998 | 18°C (65°F) | 6°C (43°F) | 1 mm |
| 1997 | 21°C (69°F) | 1°C (34°F) | 0 mm |
| 1996 | 19°C (66°F) | 13°C (55°F) | 4 mm |
| 1995 | 17°C (62°F) | 10°C (50°F) | 21 mm |
| 1994 | 26°C (78°F) | 8°C (46°F) | 0 mm |
| 1991 | 18°C (64°F) | 9°C (49°F) | 3 mm |
| 1990 | 17°C (63°F) | 15°C (59°F) | 6 mm |
| 1989 | 15°C (59°F) | 7°C (45°F) | 27 mm |
| 1988 | 19°C (66°F) | 8°C (46°F) | 0 mm |
| 1987 | 19°C (66°F) | 8°C (46°F) | 0 mm |
| 1986 | 15°C (59°F) | 11°C (51°F) | 10 mm |
| 1985 | 17°C (63°F) | 6°C (42°F) | 0 mm |
| 1984 | 18°C (65°F) | 8°C (46°F) | 0 mm |
| 1983 | 23°C (73°F) | 11°C (51°F) | 0 mm |
| 1982 | 17°C (63°F) | 8°C (47°F) | 10 mm |
| 1981 | 16°C (61°F) | 10°C (50°F) | 0 mm |
| 1980 | 19°C (66°F) | 7°C (45°F) | 0 mm |
| 1979 | 17°C (62°F) | 5°C (41°F) | 0 mm |
| 1978 | 12°C (53°F) | 10°C (50°F) | 16 mm |
| 1977 | 16°C (61°F) | 9°C (48°F) | 7 mm |
| 1976 | 21°C (69°F) | 12°C (54°F) | 16 mm |
| 1975 | 18°C (65°F) | 13°C (55°F) | 8 mm |
| 1974 | 19°C (66°F) | 11°C (51°F) | 1 mm |
| 1973 | 19°C (66°F) | 13°C (55°F) | 16 mm |
| 1972 | 19°C (66°F) | 11°C (52°F) | 0 mm |
| 1971 | 14°C (58°F) | 6°C (43°F) | 2 mm |