Athelstone Weather, SA
Athelstone is a suburb of Adelaide in the Adelaide Hills local government area, with a population of about 9,601 (SA ABS Census 2021). The local climate is warm Mediterranean-style, typical of the Adelaide region.
Annual averages from the nearest weather station: maximum daily temperature of 21.5°C, minimum of 11.8°C, and around 459 mm of rainfall spread across the year.
Monthly averages
| Month | Max °C | Min °C | Rain mm | Rain days | Comfort |
|---|---|---|---|---|---|
| January | 26.8 | 16.1 | 85 | 6 | 8.7 |
| February | 28.1 | 15.4 | 0 | 0 | 8.6 |
| March | 27.9 | 16.1 | 1 | 0 | 8.6 |
| April | 19.6 | 10.4 | 19 | 4 | 7.2 |
| May | 19.2 | 8.1 | 16 | 2 | 6.8 |
| June | 14.4 | 7.5 | 104 | 12 | 1.6 |
| July | 14.1 | 7.9 | 74 | 10 | 1.9 |
| August | 17.4 | 9.9 | 53 | 14 | 4.7 |
| September | 17.7 | 8.9 | 45 | 14 | 5.5 |
| October | 22.2 | 11.5 | 19 | 6 | 9.8 |
| November | 24.3 | 14.2 | 29 | 8 | 10.0 |
| December | 26.8 | 16.1 | 11 | 4 | 9.3 |
What locals should know
Athelstone is close enough to the coast (12 km) that summer afternoons often get an evening cool-down once the sea-breeze pushes through. The hottest month is typically February (28°C average max) and the wettest is June (104 mm). Annual rainfall is low, so water restrictions and bushfire risk are part of the local rhythm. All averages quoted come from the nearest long-term weather station, 12 km away in Adelaide.