Sydney in January
So, what's Sydney actually like in January? In a word: lovely. It's summer, and the days are averaging 26.6 degrees.
Expect the mercury to hit around 26.6 degrees during the day and settle at 19.7 degrees after dark. The temperature stays pretty consistent through the day. That's solidly pleasant territory. Great for being outdoors.
At 26.6 degrees, January runs 4.4 degrees above Sydney's annual average of 22.2 degrees.
The rain data says 118mm over 15 days. Moderate, often falling in a few good dumps rather than constant drizzle.
Sunshine-wise, January delivers around 21.9 MJ/m2 of daily solar radiation. UV sits in the extreme category. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
January scores a respectable 7.8/10 for overall comfort.
Packing tip: bring a mix of short and long sleeves, a rain jacket or compact umbrella, and SPF 50+ sunscreen and a hat.
The full data breakdown is below. You can also see how other Australian cities compare in January.
January at a Glance
Temperature Range
Daily temperature range in January. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- Comfortable casual wear suitable for warm days
- Proper rain gear for frequent showers
- Strong sun protection including a hat and SPF 50+
Coming From Overseas?
How January in Sydney stacks up against major cities around the world.
About 19 degrees warmer and considerably wetter.
About 23 degrees warmer and considerably wetter.
About 17 degrees warmer and considerably wetter.
How January Compares
Sydney's monthly climate at a glance. January is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 26.6 | 19.7 | 118mm | 7.8 |
| Feb | 26.5 | 19.5 | 82mm | 7.8 |
| Mar | 25.5 | 17.2 | 59mm | 8.9 |
| Apr | 21.9 | 14.0 | 160mm | 7.2 |
| May | 18.8 | 11.4 | 160mm | 4.2 |
| Jun | 16.0 | 7.7 | 140mm | 2.6 |
| Jul | 16.1 | 8.4 | 38mm | 3.9 |
| Aug | 19.4 | 10.1 | 36mm | 6.7 |
| Sep | 22.2 | 11.0 | 60mm | 9.0 |
| Oct | 21.7 | 12.6 | 41mm | 8.8 |
| Nov | 25.2 | 17.6 | 121mm | 8.7 |
| Dec | 26.8 | 19.1 | 53mm | 8.8 |