Weather on August 21 in Perth

Historical weather data for August 21 in Perth, Australia

Avg High19°C (67°F)
Avg Low9°C (49°F)
Warmest201120°C
Coldest20009°C

Based on 53 years of data from PERTH REGIONAL OFFICE

About This Date

August 21st in Perth, Australia typically brings mild summer weather, with average highs around 19°C and lows near 9°C. Over 53 years of records, the warmest August 21st was in 2011 (20°C average), while the coldest was 2000 (9°C) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 58% of August 21st dates historically, with the wettest August 21st recording 2.22" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.

Planning for August 21st in Perth? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202519°C (66°F)9°C (48°F)0.84"
202421°C (69°F)11°C (51°F)0.42"
202319°C (66°F)9°C (49°F)0.22"
202220°C (68°F)6°C (43°F)0"
202119°C (66°F)9°C (49°F)0.02"
202019°C (66°F)6°C (43°F)0"
201923°C (74°F)6°C (43°F)0"
201819°C (67°F)12°C (53°F)0.16"
201717°C (63°F)7°C (44°F)0"
201618°C (65°F)7°C (45°F)0.16"
201516°C (61°F)9°C (49°F)0.7"
201422°C (71°F)14°C (58°F)0.58"
201320°C (68°F)9°C (49°F)0"
201221°C (69°F)16°C (60°F)0.28"
201126°C (79°F)14°C (57°F)0"
201018°C (65°F)7°C (44°F)0.02"
200917°C (63°F)10°C (50°F)1.62"
200818°C (64°F)8°C (47°F)0"
200722°C (72°F)10°C (50°F)0.14"
200623°C (73°F)10°C (50°F)0.04"
200520°C (68°F)4°C (40°F)0"
200419°C (66°F)12°C (53°F)0.9"
200317°C (63°F)9°C (49°F)0.06"
200220°C (68°F)6°C (43°F)0"
200124°C (75°F)5°C (41°F)0"
200017°C (63°F)1°C (34°F)0.02"
199918°C (65°F)4°C (40°F)0"
199817°C (62°F)9°C (48°F)0.34"
199721°C (69°F)4°C (40°F)0"
199617°C (62°F)10°C (50°F)1.04"
199518°C (65°F)9°C (48°F)0.06"
199421°C (69°F)7°C (44°F)0"
199119°C (67°F)12°C (54°F)0"
199017°C (62°F)8°C (47°F)0"
198920°C (68°F)11°C (52°F)0.04"
198818°C (65°F)8°C (46°F)0.02"
198718°C (64°F)12°C (53°F)2.22"
198619°C (67°F)12°C (53°F)0.12"
198519°C (66°F)10°C (50°F)0"
198418°C (65°F)14°C (57°F)0.72"
198320°C (68°F)11°C (51°F)0"
198222°C (72°F)11°C (51°F)0"
198118°C (64°F)11°C (52°F)0"
198018°C (64°F)13°C (56°F)1.38"
197919°C (66°F)5°C (41°F)0"
197822°C (72°F)10°C (50°F)0"
197719°C (67°F)12°C (53°F)0.1"
197616°C (61°F)6°C (43°F)0.26"
197520°C (68°F)8°C (46°F)0.7"
197419°C (66°F)9°C (49°F)0.02"
197317°C (63°F)12°C (54°F)0.1"
197218°C (64°F)13°C (56°F)0.53"
197119°C (67°F)10°C (50°F)0"

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