Adelaide weather by month & the best time to visit
Australia · coastal city break · Mediterranean climate

The best time to visit Adelaide is January — its sunniest month (Sunshine Score 95/100), with February and November close behind. Adelaide averages about 3,118 hours of sunshine a year. Daytime highs around 31°C / 88°F and roughly 15 mm of rain in January.
When is the best time to visit Adelaide?
For sunshine, the best time to visit Adelaide is January, then February and November. The dullest month is June (50/100, 60 mm of rain). The full month-by-month picture is in the table below.
How sunny is Adelaide?
Adelaide is one of the sunniest places on Earth: about 3,118 hours of sunshine a year. 45 Sunshine Score points separate January (95) from June (50), so the month you pick matters. It ranks #57 of 118 destinations in Australia for annual sunshine, above the national median of 3,071 hours. Rain has a clear season: the wettest stretch, around June, carries about 40% of the annual 431 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 95 | 31° / 88°F | 17° / 63°F | 15 mm | 12 | 23° / 73°F |
| February | 94 | 30° / 86°F | 16° / 61°F | 17 mm | 10 | 23° / 73°F |
| March | 93 | 27° / 81°F | 15° / 59°F | 25 mm | 8 | 23° / 73°F |
| April | 91 | 23° / 73°F | 12° / 54°F | 34 mm | 5 | 19° / 66°F |
| May | 81 | 19° / 66°F | 10° / 50°F | 53 mm | 3 | 16° / 61°F |
| June | 50 | 15° / 59°F | 8° / 46°F | 60 mm | 2 | 14° / 57°F |
| July | 50 | 15° / 59°F | 7° / 45°F | 60 mm | 2 | 13° / 55°F |
| August | 59 | 16° / 61°F | 7° / 45°F | 51 mm | 3 | 14° / 57°F |
| September | 82 | 19° / 66°F | 9° / 48°F | 47 mm | 5 | 15° / 59°F |
| October | 93 | 22° / 72°F | 10° / 50°F | 24 mm | 7 | 18° / 64°F |
| November | 94 | 26° / 79°F | 13° / 55°F | 22 mm | 9 | 21° / 70°F |
| December | 93 | 28° / 82°F | 15° / 59°F | 23 mm | 11 | 23° / 73°F |
Sea temperature in Adelaide by month
The sea off Adelaide is warmest in January at around 23°C / 73°F, and coolest in July at 13°C / 55°F. The water sits at a comfortable 21°C or warmer roughly 5 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Adelaide compares month by month: Adelaide vs Melbourne · Adelaide vs Canberra · Adelaide vs Launceston (Western Junction) · Adelaide vs Alice Springs · all comparisons
Adelaide: questions and answers
What kind of destination is Adelaide?
Adelaide is a coastal city break in Australia with a Mediterranean climate — the sea reaches 23°C at its warmest and is swimmable (21°C+) about 5 months a year.
How many hours of sunshine does Adelaide get a year?
Adelaide gets about 3,118 hours of sunshine a year, at its best around January.
When is the best time to visit Adelaide?
The sunniest time to visit Adelaide is January, when the Sunshine Score peaks at 95/100 (with February and November close behind). Expect daytime highs around 31°C / 88°F.
What is the least sunny month in Adelaide?
June is the least sunny month in Adelaide, scoring 50/100 with about 60 mm of rain.
What is the sea temperature in Adelaide?
The sea in Adelaide ranges from about 13°C (July) to 23°C (January). Month-by-month sea temperatures are on this page.
How strong is the sun in Adelaide?
The typical midday UV index in Adelaide peaks around 12 (extreme) in January, easing to about 2 (low) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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