Weather on July 18 in Perth
Historical weather data for July 18 in Perth, Australia
Based on 54 years of data from PERTH REGIONAL OFFICE
About This Date
July 18th 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 18th was in 1976 (21°C average), while the coldest was 2013 (9°C) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 52% of July 18th dates historically, with the wettest July 18th recording 1.73" of rain. The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 4.1°F warmer on this date compared to 20-30 years ago.
Planning for July 18th in Perth? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 19°C (66°F) | 14°C (58°F) | 12 mm |
| 2025 | 19°C (66°F) | 9°C (48°F) | 0 mm |
| 2024 | 17°C (62°F) | 13°C (55°F) | 44 mm |
| 2023 | 19°C (67°F) | 8°C (46°F) | 0 mm |
| 2022 | 19°C (67°F) | 11°C (51°F) | 10 mm |
| 2021 | 18°C (65°F) | 11°C (51°F) | 1 mm |
| 2020 | 18°C (65°F) | 7°C (45°F) | 2 mm |
| 2019 | 21°C (69°F) | 8°C (47°F) | 1 mm |
| 2018 | 19°C (66°F) | 14°C (58°F) | 0 mm |
| 2017 | 25°C (77°F) | 11°C (52°F) | 0 mm |
| 2016 | 17°C (62°F) | 8°C (47°F) | 7 mm |
| 2015 | 21°C (69°F) | 13°C (55°F) | 1 mm |
| 2014 | 19°C (67°F) | 6°C (42°F) | 0 mm |
| 2013 | 16°C (61°F) | 2°C (35°F) | 0 mm |
| 2012 | 17°C (62°F) | 2°C (36°F) | 0 mm |
| 2011 | 19°C (66°F) | 7°C (45°F) | 0 mm |
| 2010 | 17°C (62°F) | 4°C (40°F) | 0 mm |
| 2009 | 19°C (67°F) | 13°C (56°F) | 0 mm |
| 2008 | 18°C (64°F) | 11°C (51°F) | 21 mm |
| 2007 | 24°C (75°F) | 6°C (42°F) | 0 mm |
| 2006 | 21°C (69°F) | 2°C (35°F) | 0 mm |
| 2005 | 22°C (71°F) | 2°C (36°F) | 0 mm |
| 2004 | 18°C (65°F) | 6°C (42°F) | 0 mm |
| 2003 | 18°C (65°F) | 2°C (36°F) | 0 mm |
| 2002 | 18°C (64°F) | 13°C (55°F) | 0 mm |
| 2001 | 19°C (66°F) | 1°C (34°F) | 0 mm |
| 2000 | 16°C (61°F) | 12°C (53°F) | 9 mm |
| 1999 | 18°C (65°F) | 12°C (54°F) | 1 mm |
| 1998 | 18°C (64°F) | 6°C (42°F) | 11 mm |
| 1997 | 19°C (67°F) | 1°C (33°F) | 0 mm |
| 1996 | 18°C (64°F) | 12°C (54°F) | 6 mm |
| 1995 | 18°C (65°F) | 8°C (46°F) | 1 mm |
| 1994 | 22°C (71°F) | 8°C (46°F) | 0 mm |
| 1991 | 16°C (60°F) | 10°C (50°F) | 9 mm |
| 1990 | 17°C (63°F) | 10°C (50°F) | 0 mm |
| 1989 | 19°C (66°F) | 9°C (49°F) | 0 mm |
| 1988 | 17°C (62°F) | 8°C (47°F) | 4 mm |
| 1987 | 18°C (64°F) | 8°C (47°F) | 0 mm |
| 1986 | 16°C (60°F) | 9°C (48°F) | 1 mm |
| 1985 | 17°C (63°F) | 12°C (54°F) | 9 mm |
| 1984 | 16°C (61°F) | 11°C (51°F) | 0 mm |
| 1983 | 19°C (67°F) | 11°C (52°F) | 4 mm |
| 1982 | 18°C (64°F) | 7°C (44°F) | 0 mm |
| 1981 | 18°C (65°F) | 13°C (55°F) | 11 mm |
| 1980 | 19°C (67°F) | 8°C (47°F) | 0 mm |
| 1979 | 21°C (70°F) | 11°C (51°F) | 0 mm |
| 1978 | 19°C (66°F) | 11°C (51°F) | 5 mm |
| 1977 | 18°C (65°F) | 13°C (56°F) | 27 mm |
| 1976 | 26°C (79°F) | 14°C (58°F) | 0 mm |
| 1975 | 17°C (63°F) | 12°C (54°F) | 9 mm |
| 1974 | 19°C (66°F) | 11°C (51°F) | 6 mm |
| 1973 | 14°C (58°F) | 11°C (51°F) | 41 mm |
| 1972 | 17°C (63°F) | 11°C (52°F) | 2 mm |
| 1971 | 17°C (62°F) | 7°C (44°F) | 2 mm |