Aurora Borealis in Sydney

Canada · 46.14°, -60.18° · geomagnetic 55.2° · needs Kp 7

Tonight's aurora forecast for Sydney

7%

Peak chance of a visible display tonight, from the same model the Revon app runs. Sydney needs Kp 7 to see anything at all, and tonight the forecast peaks at Kp 5.0. Short of the threshold, which is what most nights look like here.

Tonight Tue 08 Sep
7%
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06

Get the full 30-night forecast in Revon

Updated 2026-09-08 10:35 UTC

Local aurora guide for Sydney

Sydney is at a geomagnetic latitude of 55.2 degrees. Auroras are typically visible at this latitude when the Kp index reaches 7.

On average, there are 3.2 nights per year suitable for aurora viewing in this region. Consistent observation over many years increases the chance of witnessing an aurora.

The best months for aurora viewing in Sydney are May, September, and August. These months offer a good balance of darkness and potential aurora activity.

The Sydney area has a Bortle scale rating of 3, indicating a relatively dark sky. Areas further north-north-west, such as near Sydney Mines, also maintain a Bortle 3 rating.

Local terrain includes Petersfield Provincial Park to the west-north-west, South Arm bay to the north-north-west, Inglis Lake to the north-east, and Grand Lake also to the north-east. Liscomb Point, a headland, is located to the north-north-west.

Geographic features near Sydney include Petersfield Provincial Park, located west-north-west. To the north-north-west are South Arm bay and Liscomb Point headland.

Inland, Inglis Lake and Grand Lake are situated to the north-east of Sydney.

Records from 2016 indicate 15 verified aurora sightings within 300 km of Sydney. The period from April 2016 to March 2026 has been analyzed for viable viewing nights.

Notable aurora events within the record span include nights with Kp values of 7.0, 7.67, 8.67, 7.33, and 8.67. These events occurred on dates such as March 20, 2026, January 20, 2026, January 19, 2026, November 12, 2025, and November 11, 2025.

Sources: Revon analysis of NOAA planetary Kp · Falchi 2016 World Atlas of artificial night sky brightness · GeoNames (CC BY 4.0) · Aurorasaurus verified positive reports

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Nearby towns

Forecasts for places within reach of Sydney.