Goolwa Weather and Climate
Climate Snapshot
Goolwa's warmest month in 2024 was December, averaging 25.8 degrees. That gives Goolwa an annual average daytime high of 20.6 degrees, 2.3 degrees cooler than the South Australia mean.
Daytime highs peak at 25.8 degrees in December and bottom out with overnight lows of 7.6 degrees in July. That is a 18.2 degree spread from hottest afternoon to coldest night. Overnight minimums average 11.8 degrees across the year, 0.4 degrees colder than the South Australia average of 12.2.
Annual rainfall totals 442mm across 75 rain days, 20 percent wetter than the South Australia average. The wettest month is January at 112mm, and February is the driest at 1mm.
There is a pronounced wet-dry split here. January receives 112mm while February gets just 1mm, so the contrast between seasons is stark.
By our reckoning, February (10.0/10) is when the weather is at its finest, while June (1.8/10) is the toughest month to be outdoors.
Scroll down for the full month-by-month breakdown, or jump straight to February if you're picking the best time to visit Goolwa.
Monthly Comfort Score
Our Comfort Score rates each month from 1 (tough) to 10 (ideal) based on temperature, humidity, rainfall, UV, and sunshine. How we calculate it
Annual Comfort Score: 7.2/10 - Ranked #39 of 213 Australian cities (national avg 6.2, SA avg 6.5)
Seasonal Overview
| Season | Avg Max °C | Avg Min °C | Total Rain mm | Comfort |
|---|---|---|---|---|
| Summer | 24.8 | 15.1 | 133 | 9.9 |
| Autumn | 20.6 | 11.9 | 49 | 7.4 |
| Winter | 15.7 | 8.4 | 160 | 3.3 |
| Spring | 21.3 | 11.8 | 100 | 8.4 |
Monthly Climate Averages
| Month | Max °C | Min °C | Rain mm | Rain Days | Solar MJ | Humidity % | Comfort |
|---|
Weather by Month
Detailed climate data, packing advice, and what to expect for each month in Goolwa.
23.2°C, 112mm rain February
25.3°C, 1mm rain March
25.3°C, 10mm rain April
18.6°C, 22mm rain May
17.9°C, 18mm rain June
14.6°C, 76mm rain July
14.4°C, 49mm rain August
18.2°C, 35mm rain September
18.0°C, 26mm rain October
21.8°C, 26mm rain November
24.2°C, 48mm rain December
25.8°C, 20mm rain
Compare and Explore
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