Weather on January 20 in Perth
Historical weather data for January 20 in Perth, Australia
Avg High32°C (89°F)
Avg Low18°C (65°F)
Warmest202534°C
Coldest197718°C
Based on 55 years of data from PERTH REGIONAL OFFICE
About This Date
January 20th in Perth, Australia typically brings warm winter weather, with average highs around 32°C and lows near 18°C. Over 55 years of records, the warmest January 20th was in 2025 (34°C average), while the coldest was 1977 (18°C) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 11% of January 20th dates historically. The last decade has been 7.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 7.6°F warmer on this date compared to 20-30 years ago.
Planning for January 20th in Perth? Stay hydrated and seek shade during peak afternoon hours.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2026 | 39°C (103°F) | 19°C (67°F) | 0" |
| 2025 | 43°C (110°F) | 24°C (76°F) | 0" |
| 2024 | 34°C (93°F) | 18°C (64°F) | 0" |
| 2023 | 38°C (100°F) | 21°C (69°F) | 0" |
| 2022 | 41°C (105°F) | 22°C (71°F) | 0" |
| 2021 | 30°C (86°F) | 22°C (72°F) | 0" |
| 2020 | 31°C (88°F) | 14°C (58°F) | 0" |
| 2019 | 42°C (108°F) | 20°C (68°F) | 0" |
| 2018 | 34°C (94°F) | 19°C (66°F) | 0" |
| 2017 | 27°C (80°F) | 12°C (54°F) | 0" |
| 2016 | 27°C (80°F) | 14°C (58°F) | 0.04" |
| 2015 | 39°C (102°F) | 16°C (61°F) | 0" |
| 2014 | 38°C (101°F) | 21°C (69°F) | 0" |
| 2013 | 35°C (95°F) | 16°C (60°F) | 0" |
| 2012 | 37°C (99°F) | 22°C (72°F) | 0.06" |
| 2011 | 28°C (82°F) | 17°C (62°F) | 0" |
| 2010 | 30°C (86°F) | 21°C (69°F) | 0" |
| 2009 | 28°C (82°F) | 16°C (60°F) | 0" |
| 2008 | 32°C (90°F) | 19°C (66°F) | 0" |
| 2007 | 26°C (78°F) | 14°C (57°F) | 0" |
| 2006 | 32°C (90°F) | 15°C (59°F) | 0" |
| 2005 | 29°C (84°F) | 14°C (57°F) | 0" |
| 2004 | 24°C (75°F) | 14°C (58°F) | 0" |
| 2003 | 28°C (82°F) | 13°C (55°F) | 0.02" |
| 2002 | 30°C (86°F) | 17°C (62°F) | 0" |
| 2001 | 33°C (92°F) | 18°C (65°F) | 0" |
| 2000 | 32°C (90°F) | 16°C (61°F) | 0" |
| 1999 | 39°C (102°F) | 18°C (65°F) | 0" |
| 1998 | 28°C (83°F) | 19°C (67°F) | 0" |
| 1997 | 23°C (73°F) | 17°C (62°F) | 0" |
| 1996 | 29°C (85°F) | 14°C (57°F) | 0" |
| 1995 | 32°C (89°F) | 18°C (64°F) | 0" |
| 1994 | 41°C (105°F) | 21°C (70°F) | 0" |
| 1992 | 23°C (74°F) | 17°C (62°F) | 0" |
| 1991 | 38°C (101°F) | 23°C (74°F) | 0" |
| 1990 | 29°C (85°F) | 21°C (70°F) | 0.2" |
| 1989 | 39°C (103°F) | 28°C (82°F) | 0" |
| 1988 | 23°C (74°F) | 13°C (56°F) | 0" |
| 1987 | 33°C (91°F) | 19°C (66°F) | 0" |
| 1986 | 39°C (103°F) | 21°C (70°F) | 0" |
| 1985 | 23°C (73°F) | 19°C (66°F) | 0" |
| 1984 | 40°C (104°F) | 24°C (75°F) | 0" |
| 1983 | 32°C (89°F) | 21°C (69°F) | 0" |
| 1982 | 22°C (71°F) | 19°C (66°F) | 0.26" |
| 1981 | 31°C (87°F) | 20°C (68°F) | 0" |
| 1980 | 33°C (92°F) | 21°C (69°F) | 0" |
| 1979 | 26°C (79°F) | 14°C (58°F) | 0.04" |
| 1978 | 30°C (86°F) | 23°C (73°F) | 0" |
| 1977 | 24°C (75°F) | 13°C (56°F) | 0" |
| 1976 | 33°C (91°F) | 17°C (62°F) | 0" |
| 1975 | 27°C (81°F) | 16°C (61°F) | 0" |
| 1974 | 36°C (97°F) | 18°C (65°F) | 0" |
| 1973 | 28°C (83°F) | 17°C (63°F) | 0" |
| 1972 | 27°C (81°F) | 17°C (62°F) | 0" |
| 1971 | 34°C (94°F) | 20°C (68°F) | 0" |