Weather in Sydney in January 2025
- January is usually the hottest month of the year in Sydney;
Average weather
Average temperature in Sydney in January
Going from a maximum of +86°F during the day to a minimum of +63°F during the night, the temperature in January averages around +79°F.
The average maximum temperature goes up 8% by the end of the month, compared with the beginning of the month, from +81°F to +82°F.
Is Sydney warm or cold in January?
Sydney is typically warm in January.
Maximum temperatures go up compared to the previous month from +77°F to +79°F. The minimum temperature also goes up from +64°F to +68°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
January is the hottest month in Sydney, here is the comparison with other months:
Climate in Sydney in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +77°F | +79°F | +77°F | ||||
| Min. temperature | ||||||
| +52°F | +55°F | +54°F | ||||
| Max. temperature | ||||||
| +106°F | +111°F | +104°F | ||||
| Rainfall | ||||||
| 59 mm | 77 mm | 100 mm | ||||
| Wind | ||||||
| 4 m/s | 4 m/s | 3 m/s | ||||
| Humidity | ||||||
| 67% | 70% | 72% | ||||
| Air pressure | ||||||
| 1011 HPa | 1011 HPa | 1013 HPa | ||||
| Sunny days | ||||||
| 9 | 8 | 7 | ||||
| Cloudy days | ||||||
| 16 | 17 | 14 | ||||
| Rainy days | ||||||
| 6 | 6 | 7 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January weather is still as good as in December. It’s getting warmer as January arrives. The average maximum temperature goes up from +77°F to +79°F during the day. Prepare for more rain. Average rainfall goes from 59 mm to 77 mm. Humidity rises from 67% to 70%. The average wind speed doesn’t change much during January, staying around 4 m/s. The days becoming less sunny, going from 9 sunny days in December to 8 in January.
February brings much the same weather, it remains good.
Wind
The average wind speed is 5 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Sydney is gradually decreasing during January, going from 6 m/s to 3 m/s over the course of the month.
Rain
How was the weather last January in Sydney?
Climate Change Over the Years
The climate in Sydney in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1989 (+77°F) and the highest in 2019 (+95°F). The driest year was 2009 with only 11 mm of rainfall, and the wettest year was 2022 with 261 mm.
FAQ
Is January a good time to visit Sydney?
Can you sunbathe in Sydney in January?
Is Sydney rainy in January?
Is it sunny in Sydney in January?
Other cities in Australia
Monthly weather in Sydney
Source of the data
For this page, we’ve looked at the typical weather in Sydney, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.