Weather on September 27 in Sydney

Historical weather data for September 27 in Sydney, Australia

Avg High21°C (70°F)
Avg Low13°C (55°F)
Warmest202524°C
Coldest197411°C

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

About This Date

September 27th in Sydney, Australia typically brings pleasant fall weather, with average highs around 21°C and lows near 13°C. Over 55 years of records, the warmest September 27th was in 2025 (24°C average), while the coldest was 1974 (11°C) — a 23°F range across recorded history. Rain or other precipitation has occurred on about 38% of September 27th dates historically, with the wettest September 27th recording 2.14" of rain. The last decade has been 1.5°F cooler on this date compared to 20-30 years ago.

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

Planning for September 27th in Sydney? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202528°C (82°F)20°C (68°F)--
202417°C (63°F)12°C (54°F)--
202321°C (69°F)16°C (61°F)--
202219°C (66°F)15°C (59°F)--
202117°C (63°F)11°C (52°F)--
202016°C (61°F)12°C (53°F)--
201926°C (78°F)14°C (57°F)0"
201820°C (68°F)8°C (47°F)0.1"
201723°C (73°F)16°C (60°F)0"
201623°C (74°F)11°C (52°F)0"
201519°C (67°F)12°C (54°F)0.36"
201423°C (73°F)13°C (55°F)0.02"
201323°C (73°F)13°C (55°F)0"
201223°C (73°F)14°C (57°F)0.02"
201121°C (69°F)11°C (51°F)0.04"
201027°C (81°F)13°C (55°F)0"
200917°C (63°F)10°C (50°F)0"
200826°C (78°F)14°C (57°F)0"
200728°C (82°F)15°C (59°F)0.04"
200623°C (74°F)17°C (63°F)0"
200519°C (67°F)14°C (58°F)1.1"
200429°C (84°F)13°C (56°F)0"
200318°C (64°F)14°C (58°F)0"
200223°C (73°F)13°C (55°F)0"
200118°C (65°F)12°C (53°F)0.7"
200028°C (83°F)15°C (59°F)1.42"
199921°C (69°F)18°C (64°F)0"
199823°C (74°F)12°C (54°F)0"
199724°C (75°F)12°C (54°F)0.2"
199619°C (67°F)13°C (56°F)0"
199517°C (62°F)11°C (51°F)0.18"
199416°C (60°F)10°C (50°F)0"
199319°C (67°F)9°C (48°F)0"
199219°C (66°F)11°C (52°F)0"
199120°C (68°F)12°C (53°F)0.32"
199018°C (64°F)13°C (55°F)0.24"
198919°C (66°F)8°C (47°F)0.04"
198820°C (68°F)14°C (57°F)2.14"
198731°C (88°F)15°C (59°F)0"
198623°C (73°F)16°C (60°F)0"
198519°C (66°F)9°C (48°F)0"
198420°C (68°F)8°C (47°F)0"
198323°C (74°F)10°C (50°F)0"
198218°C (65°F)15°C (59°F)0.1"
198118°C (64°F)13°C (55°F)0.12"
198019°C (67°F)13°C (55°F)0"
197921°C (70°F)13°C (56°F)0"
197826°C (79°F)17°C (62°F)0"
197720°C (68°F)14°C (58°F)0.02"
197619°C (66°F)9°C (48°F)0.78"
197519°C (67°F)12°C (54°F)0.36"
197416°C (60°F)7°C (44°F)0.42"
197326°C (78°F)13°C (56°F)0"
197223°C (73°F)17°C (63°F)0"
197122°C (71°F)14°C (57°F)0"

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