Thongs, shorts and T-shirt will be enough to keep New Year's Eve revellers comfortable in Canberra, but a light jacket could be handy if you are planning to be at Batemans Bay.
Bureau of Meteorology forecaster Christopher Webb says a maximum of 33 degrees is expected on New Year's Eve in the ACT. Light winds will probably turn easterly in the evening.
At Civic Square an all ages concert will see out the year, while there will be music and dancing in Garema Place. The forecast temperature will gradually decrease to 24-25 degrees by 9pm and 18-19 degrees at midnight.
Civic Square is the best vantage point for the fireworks. Rain is not expected. "You can never say never, it is only a small chance," Mr Webb said.
New Year's Day's maximum temperature forecast will be 34 degrees, and the weather will be under the influence of a high pressure ridge, which could cause instability on the ranges south of Canberra.
Canberra will be fine and partly cloudy. Light winds will be tending east to north easterly later, with the chance of a shower on the southern ranges.
"We can't rule out a shower in Canberra, there's just a slight chance," Mr Webb said. We're saying 10 per cent possibility of rain."
On New year's Eve at Batemans Bay the temperature will reach a maximum of 28 degrees.
Fresh north easterly winds will gradually decrease into the night. The temperature should be about 18 degrees at midnight.
New Year's Day's maximum is 28 degrees, with little chance of rain, and a freshening north sea breeze.