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When is the best time to visit Coober Pedy?

April to OctoberAnd underground, any month at all.

April to October for the mildest days, and any month underground. Coober Pedy Airport averages 27°C in April, 18 to 21°C from June to August, and 29°C in October, and it barely rains: about 145mm in a whole year. Summer reaches 37°C in January, which is exactly why the town lives underground: the rock holds a steady, cool temperature all year, and your night there is spent underground. Both seven day trips between Adelaide and Uluru stop for the night, from $1,305.

Checked on 28 October 2026.

Seven days south Uluru to Adelaide from$1305 Seven days north Adelaide to Uluru from$1505

Coober Pedy is the opal capital of the world, roughly halfway between Adelaide and Uluru, and more than half of it is underground. That makes it one of the few places in the outback where the month matters less than you would think: the rock holds a steady, cool temperature all year, and so does the room you sleep in.

Coober Pedy month by month

Month	Day	Night	Rain	What it gives you
January	37°C	22°C	14mm	The warmest month. The underground town comes into its own
February	36°C	22°C	14mm	Hot days and warm nights. Cool below ground
March	32°C	19°C	13mm	Summer easing off, still almost rainless
April	27°C	14°C	13mm	A sweet spot. Warm days, mild nights
May	22°C	10°C	9mm	Mild, dry days
June	18°C	7°C	13mm	Cool days, ideal for noodling for opal
July	19°C	6°C	5mm	The driest month. Mild days, crisp nights
August	21°C	8°C	8mm	Mild and dry
September	26°C	11°C	8mm	A sweet spot. Warm and dry
October	29°C	14°C	13mm	Warm days before the summer
November	32°C	18°C	16mm	Summer arriving. Warm evenings
December	35°C	20°C	19mm	The wettest month, at just 19mm. Underground is the place to be

Bureau of Meteorology long-term monthly averages for Coober Pedy Airport (station 016090), from 32 years of records.

What each season is for

Autumn. March to May

April is a sweet spot27°C by day and 14°C at night.
By May it is 22°C by day with 9mm of rain for the whole month.

Winter. June to August

18 to 21°C by daycomfortable for walking through the dugouts and noodling through the mine tailings for stray opal.
July is the driest monthat 5mm.
Nights drop to 6 to 8°Cabove ground. Below ground, the rock keeps its steady temperature.

Spring. September to November

September is a sweet spot26°C and 8mm of rain.
Days warm from 29°C in October to 32°C in November, with warm evenings.

Summer. December to February

35 to 37°C by daythe heat the town was dug to escape, and the time the underground night is at its best.
Warm nights of 20 to 22°Cabove ground.
Keep a hat and water with you for the time outdoors.

So when would we go?

April or Septemberif you can pick freely: warm, dry and comfortable all day.
June to Augustfor mild days out among the dugouts and the opal.
December to Februaryto see why a whole town moved underground.
Any month for the night undergroundwhich stays cool and completely silent whatever the weather is doing.

The night underground

Coober Pedy is a stop on the road between Adelaide and Uluru, and both seven day trips sleep there for a night, underground: a 5-share dorm on one, an underground bunkhouse at an opal mine on the other. It is included in the price. There is more on the town and the night on our can you sleep underground at Coober Pedy page.