Cairns in January

If January is your window for visiting Cairns, here's what the climate data says you can expect.

Daytime highs average 31.2 degrees, dropping to 24.5 degrees overnight. That's a 7-degree swing between day and night. The warmth sticks around even after dark.

At 31.2 degrees, January runs 2.9 degrees above Cairns's annual average of 28.3 degrees.

Rainfall in January averages 689mm over about 26 days. That means roughly a 87% chance of rain on any given day, so definitely bring rain gear.

Solar exposure averages 19.5 MJ/m2 per day in January, with UV levels in the very high range. You'll want SPF 50+ and a decent hat.

January scores 2.9/10 on our Comfort Score. It's the tough end of the year weather-wise.

For your suitcase: light, breathable clothing, waterproof gear, and SPF 50+ sunscreen and a hat.

The sea breeze usually kicks in by early afternoon in January, which is genuinely welcome. It can knock 3 to 5 degrees off the feels-like temperature.

The full data breakdown is below. You can also see how other Australian cities compare in January.