Why am I suddenly getting more aircraft overflying my house than previously?

Aircraft take off and land into the wind, or with minimal tail wind.  As a result, wind direction dictates the selection of runway(s) in use at any time.  This in turn determines which flight paths are used.  Winds at many Australian airports are seasonal, tending to blow from one direction in summer and another in winter.  This means that runway use also tends to be seasonal.  As a result, suburbs aligned with runways will experience more noise from aircraft at certain times of the year than at others.

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