Melbourne in December: 25°C / 77°F afternoons, 14°C / 57°F nights, about 6 rain days, Carols on Christmas Eve and the Boxing Day Test from 26 December.
Pack for a day that starts at a gate and ends after dark. Figures from the Bureau of Meteorology (Olympic Park) put December at 24.7°C in the afternoon and 14.4°C at night, with 50mm of rain over about 6 days. The month's two big dates keep you outdoors for all of it. Carols by Candlelight is at the Sidney Myer Music Bowl on Christmas Eve, and the MCG opens its gates at 9am on 26 December for the Boxing Day Test against New Zealand. The Members' Reserve asks only for neat casual. SunSmart is stricter: in a Victorian summer, UV damages skin in as little as 11 minutes. So linen with sleeves, a real brim, and a black shell for the night.
December loosens the dress codes and tightens the sun. The MCC asks only for neat casual, SunSmart counts summer skin damage in minutes, and the brim and the sleeves take over the job November gave the rulebook.

Sleeves and a collar are SunSmart's own clothing advice, and in a Victorian summer it says UV can damage skin in as little as 11 minutes. A relaxed light blue linen shirt gives you both without trapping heat on a 24.7°C afternoon. Wear it open over the tank at the 9am gates and button the cuffs by eleven, when UV climbs toward its peak.

Under the linen, one cotton layer is enough: BoM's long record puts December's 3pm reading at 22.4°C with 47% humidity. An ivory scoop-neck tank covers your midriff, which matters in the Members' Reserve, where the MCC turns away brief tops that show it. Keep the shirt over it in the sun and take the shirt off only in the shade of the stands.

Keep these for the public bays: the MCC's dress standards bind only members and their guests, and in the Members' Reserve it wants tailored, denim or dress shorts, which a drawstring waist is not. In the open stands, white cotton-linen stays cool from the 9am gates through a 10.30am start and a 25°C / 77°F afternoon. Pair them with the shirt, not the tank alone.

A guest pass to the Members' Reserve calls for neat casual, and the MCC refuses miniskirts and dresses that bare the midriff. A red knee-length sundress with a tie waist clears both. It also covers Christmas Eve: at the Carols the gates opened at 4pm in 2025, so you arrive in 25°C / 77°F sun and stay past sunset, with the black shell over it at 14°C / 57°F.

Strapped is the word the MCC uses. Its Members' Reserve standards turn away thongs, scuffs and slippers but permit neat, strapped sandals, and a tan leather ankle strap keeps an espadrille on your foot up and down the stand stairs. Cream canvas breathes on a 25°C / 77°F day, and the low sole suits the walk in from Gate 2.

SunSmart wants a brim of at least 7.5cm on an adult and says a cap leaves much of your face, neck and ears in the sun, so bring a wide brim to a Test day that runs from a 10.30am start into the afternoon. It also warns that loosely woven straw lets UV in, so choose a close weave. Take it off before the Jim Stynes Grill, where the MCC requires hats to come off.

One bag carries the whole day: sunscreen to reapply between sessions, the folded black shell for after dark, and the hat once you step indoors. A woven straw basket weighs little in 24.7°C heat and holds its shape when full, and brown leather handles ride in the crook of your arm from a morning at the MCG to Christmas Eve at the Music Bowl.

Nights fall to 14.4°C, and Christmas Eve at the Music Bowl keeps you sitting outside after sunset. At the Carols in 2025, umbrellas had to be closed by 7:45pm, before the 8pm start, so a hood is the rain cover that keeps working through the program. A black packable shell folds into the basket by day, blocks the evening breeze and goes over the red sundress without a clash.
Light blue linen shirt open over the ivory tank · white drawstring shorts · cream espadrilles · straw wide-brim hat · basket tote with the black shell folded inside. MCG gates at 9am on Saturday 26 December, first ball of the Test at 10.30am, cuffs buttoned by eleven.
Red knee-length sundress · black hooded shell · cream espadrilles · basket tote. Carols by Candlelight at the Sidney Myer Music Bowl on Christmas Eve, sunset at about twenty to nine, the hood up if a shower comes through after the umbrellas close.
A suggested look — light blue linen shirt, ivory cotton tank, white drawstring shorts, cream and tan espadrille sandals, natural straw wide-brim hat.
The Bureau of Meteorology's record at Melbourne (Olympic Park), which begins in 2013, gives December a mean maximum of 24.7°C and a mean minimum of 14.4°C, with 50.2mm of rain across about 6 days of 1mm or more, which makes it drier than November. BoM's long record for the old Melbourne Regional Office site adds about 7.5 hours of sun a day, 47% humidity at 3pm and a 3pm wind near 15 km/h. Daylight holds close to 14h 45m from mid-month, and by New Year's Eve the sun sets at about quarter to nine.
A light blue linen button-down, an ivory cotton tank, white cotton-linen drawstring shorts, a red knee-length sundress, cream espadrille sandals with tan ankle straps, a natural straw wide-brim hat, a woven straw basket tote and a black hooded packable shell. That covers a 25°C / 77°F afternoon at the MCG, Christmas Eve at the Sidney Myer Music Bowl and a 14°C / 57°F walk home. Leave the cap, the thongs and any wool at home. Add sunscreen and reapply it: SunSmart says to cover up whenever UV reaches 3.
Gates open at 9am on Saturday 26 December and play starts at 10.30am, with the Test against New Zealand scheduled for 26 to 30 December. In the Members' Reserve, which covers members and their guests, the MCC keeps it brief: "The minimum dress code is neat casual." Men 17 and over need a collared shirt; tailored, denim and dress shorts, neat strapped sandals and Birkenstocks pass, while sportswear, beachwear, thongs and miniskirts do not. Everywhere in the ground SunSmart's warning holds: "In Victoria's summer months, UV can cause damage in as little as 11 minutes." Wear sleeves and a brim of 7.5cm or more.
Late December if you want the city's two big outdoor dates, early December if you want an ordinary working week. Victorian schools run until Friday 18 December, and the summer holidays start the next day. Then the calendar fills: the Carols rehearsal night on Wednesday 23 December, Carols by Candlelight on Thursday 24, Christmas Day on Friday 25, Boxing Day and the Test's first day on Saturday 26, an extra public holiday on Monday 28, and play through Wednesday 30. New Year's Eve in the city is alcohol-free, and its 2026 times are not yet published.
December is about two and a half degrees warmer by day and nearly two warmer at night: the Bureau of Meteorology's Olympic Park record gives 24.7°C and 14.4°C, against November's 22.2°C and 12.7°C. It is drier too, 50.2mm over about 6 days against 64.4mm over about 8. The rules change more than the weather. November's VRC members' code bans all denim and weatherproof jackets; December's MCC Members' Reserve asks for neat casual and accepts denim shorts, and the VRC's own relaxed summer code begins. Our November guide covers Cup Week.
Linen and cotton with the sleeves kept on, and denim that finally clears the gate. Nobody Denim, founded in Melbourne in 1999 to make the best Australian jeans and still designing in its Melbourne studio, suits a Members' Reserve day at the MCG, where the MCC accepts denim shorts that the VRC's members' code bans. On your feet, the same MCC standards name Birkenstocks as acceptable and allow neat strapped sandals, so a strapped leather or canvas sandal is the Boxing Day shoe. Above the waist, SunSmart's advice for long sleeves and collars shapes the shirt.