Weather on September 18 in Sydney

Historical weather data for September 18 in Sydney, Australia

Avg High21°C (70°F)
Avg Low12°C (54°F)
Warmest201123°C
Coldest197413°C

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

About This Date

September 18th in Sydney, Australia typically brings pleasant fall weather, with average highs around 21°C and lows near 12°C. Over 55 years of records, the warmest September 18th was in 2011 (23°C average), while the coldest was 1974 (13°C) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 24% of September 18th dates historically, with the wettest September 18th recording 6.56" of rain. Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for September 18th in Sydney? Great weather for outdoor activities.

Year by Year History

YearHighLowPrecip
202519°C (66°F)13°C (55°F)--
202426°C (78°F)11°C (52°F)--
202324°C (76°F)16°C (61°F)--
202222°C (71°F)14°C (57°F)--
202121°C (70°F)16°C (60°F)--
202017°C (63°F)15°C (59°F)--
201918°C (64°F)11°C (51°F)6.56"
201822°C (71°F)10°C (50°F)0"
201721°C (70°F)8°C (47°F)0"
201618°C (64°F)14°C (58°F)0"
201520°C (68°F)13°C (56°F)0.22"
201421°C (69°F)12°C (54°F)0"
201326°C (78°F)15°C (59°F)0"
201221°C (69°F)12°C (54°F)0"
201131°C (87°F)16°C (60°F)0"
201023°C (74°F)9°C (49°F)0"
200923°C (74°F)19°C (66°F)0"
200819°C (67°F)9°C (49°F)0"
200721°C (69°F)13°C (56°F)0"
200626°C (78°F)13°C (55°F)0"
200519°C (67°F)10°C (50°F)0.06"
200422°C (72°F)13°C (55°F)0"
200323°C (74°F)17°C (62°F)0"
200221°C (69°F)9°C (48°F)1.06"
200123°C (73°F)16°C (61°F)0"
200029°C (84°F)14°C (58°F)0"
199919°C (66°F)9°C (49°F)0"
199826°C (79°F)11°C (52°F)0"
199716°C (61°F)10°C (50°F)0.06"
199624°C (76°F)15°C (59°F)0"
199521°C (69°F)11°C (52°F)0.94"
199425°C (77°F)11°C (51°F)0"
199319°C (67°F)11°C (52°F)0"
199221°C (69°F)11°C (52°F)0"
199121°C (70°F)13°C (56°F)0"
199018°C (65°F)8°C (46°F)0"
198923°C (73°F)10°C (50°F)0.02"
198818°C (65°F)14°C (57°F)0.06"
198722°C (71°F)13°C (55°F)0"
198620°C (68°F)13°C (56°F)0.12"
198519°C (67°F)13°C (55°F)0"
198418°C (65°F)12°C (53°F)1.88"
198320°C (68°F)11°C (52°F)0"
198225°C (77°F)17°C (62°F)0"
198124°C (75°F)14°C (58°F)0"
198018°C (65°F)13°C (56°F)0.1"
197917°C (62°F)10°C (50°F)0"
197820°C (68°F)13°C (56°F)0"
197721°C (70°F)9°C (48°F)0"
197619°C (67°F)12°C (53°F)0.92"
197527°C (80°F)17°C (63°F)0"
197417°C (63°F)8°C (47°F)0"
197319°C (66°F)11°C (51°F)0.2"
197219°C (66°F)17°C (62°F)0"
197119°C (66°F)8°C (47°F)0"

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