Climate Yearbook

Historical weather in Sydney, Australia

Sydney weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.

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Weather summary

Across 2023-2025, Sydney averaged 22.4 C for daily highs and 13.8 C for daily lows across 1096 daily observations.

The warmest month was December 2024, with an average high of 26.8 C, while June 2024 had the lowest average low at 7.5 C.

The wettest month was August 2025, totaling 233.1 mm of precipitation.

The hottest day reached 39.2 C on December 9, 2023; the coldest night fell to 2.4 C on June 20, 2024.

Monthly summary table

YearMonthAvg low CAvg high CRain and snow mmDays
2023January18.025.1170.631
2023February18.326.396.228
2023March18.026.499.031
2023April13.421.783.630
2023May9.018.830.431
2023June8.317.919.930
2023July7.718.822.031
2023August8.519.141.631
2023September10.123.018.730
2023October12.424.442.431
2023November15.723.2133.230
2023December18.026.4117.931
2024January19.626.6117.931
2024February19.426.582.329
2024March17.025.558.931
2024April13.921.9160.430
2024May11.318.8159.731
2024June7.516.0139.830
2024July8.316.138.431
2024August9.919.435.831
2024September10.822.159.830
2024October12.321.741.231
2024November17.525.1120.830
2024December19.126.853.131
2025January19.025.2188.531
2025February19.426.166.228
2025March19.725.4113.031
2025April15.523.2100.430
2025May13.019.4195.331
2025June7.516.315.930
2025July8.516.2124.631
2025August9.916.9233.131
2025September11.722.178.630
2025October15.325.731.531
2025November16.225.647.830
2025December17.526.567.931

Daily weather records

RecordDateValue
Hottest dayDecember 9, 202339.2 C
Coldest nightJune 20, 20242.4 C
Wettest dayAugust 21, 202566.6 mm

Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.