Weather on August 21 in Sydney

Historical weather data for August 21 in Sydney, Australia

Avg High19°C (67°F)
Avg Low10°C (50°F)
Warmest199521°C
Coldest198512°C

Based on 55 years of data from SYDNEY (OBSERVATORY HILL)

About This Date

August 21st in Sydney, Australia typically brings mild summer weather, with average highs around 19°C and lows near 10°C. Over 55 years of records, the warmest August 21st was in 1995 (21°C average), while the coldest was 1985 (12°C) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 25% of August 21st dates historically, with the wettest August 21st recording 2.4" of rain. The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.5°F warmer on this date compared to 20-30 years ago.

Planning for August 21st in Sydney? Great weather for outdoor activities.

Year by Year History

YearHighLowPrecip
202518°C (64°F)11°C (51°F)--
202426°C (78°F)16°C (60°F)--
202319°C (67°F)13°C (56°F)--
202217°C (62°F)12°C (54°F)--
202121°C (70°F)13°C (55°F)--
202019°C (66°F)9°C (49°F)0"
201922°C (72°F)9°C (49°F)0"
201818°C (64°F)8°C (47°F)0"
201718°C (64°F)8°C (47°F)0"
201621°C (69°F)8°C (47°F)0"
201521°C (70°F)9°C (49°F)0"
201418°C (65°F)9°C (49°F)1.08"
201318°C (65°F)8°C (46°F)0"
201222°C (72°F)9°C (48°F)0"
201118°C (65°F)12°C (54°F)0.22"
201017°C (62°F)9°C (48°F)0"
200925°C (77°F)11°C (52°F)0"
200820°C (68°F)9°C (49°F)0"
200719°C (66°F)11°C (52°F)0.46"
200621°C (70°F)9°C (48°F)0"
200522°C (71°F)11°C (51°F)0"
200423°C (74°F)9°C (49°F)0"
200316°C (60°F)8°C (46°F)0.1"
200221°C (69°F)9°C (49°F)0"
200117°C (63°F)10°C (50°F)0"
200021°C (69°F)8°C (47°F)0"
199917°C (62°F)12°C (53°F)0.84"
199821°C (70°F)12°C (53°F)0.26"
199718°C (64°F)11°C (51°F)0.64"
199617°C (63°F)6°C (43°F)0"
199527°C (81°F)14°C (58°F)0"
199419°C (66°F)9°C (49°F)1.26"
199322°C (71°F)11°C (51°F)0"
199218°C (64°F)7°C (44°F)0"
199117°C (63°F)11°C (51°F)0"
199019°C (67°F)9°C (49°F)0.06"
198917°C (63°F)8°C (46°F)2.4"
198823°C (73°F)11°C (51°F)0"
198718°C (64°F)9°C (48°F)0"
198618°C (65°F)8°C (46°F)0"
198516°C (61°F)7°C (45°F)0"
198418°C (65°F)13°C (55°F)0.04"
198318°C (64°F)7°C (45°F)0"
198222°C (71°F)9°C (48°F)0"
198117°C (63°F)13°C (56°F)0.08"
198023°C (73°F)13°C (56°F)0.14"
197917°C (62°F)12°C (53°F)0"
197818°C (64°F)10°C (50°F)0"
197724°C (76°F)13°C (55°F)0"
197623°C (73°F)8°C (47°F)0"
197519°C (67°F)11°C (51°F)0"
197419°C (67°F)8°C (46°F)0"
197317°C (62°F)8°C (47°F)0"
197218°C (64°F)8°C (47°F)0"
197117°C (62°F)12°C (53°F)0.25"

Popular Dates in Sydney

August 21 in Other Australia Cities

Browse by Country

Explore More Dates

See historical weather for other dates in Sydney

Back to Sydney