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Cairns Weather in January

January is not the best time to visit Cairns, as it falls during the hot, rainy season.

You can expect hot and humid weather with around seven hours of sunshine daily interspersed by tropical downpours that mainly fall at night. Daytime temperatures reach an average high of 32°C (89°F) with a low of 24°C (75°F) at night.

Despite the occasional rain showers, January weather conditions are still fine for rainforest tours, white-water rafting, game fishing and diving the Great Barrier Reef.

January is considered high season in Cairns, with higher hotel rates and more visitors especially during the summer school holidays, which last all month.

Note: January falls within the so called ‘marine stinger season’. While it is rare for anyone to get badly stung, it’s probably advisable to swim on beaches with swimming enclosures; all beaches in and around Cairns have small, netted enclosures for swimming.

Cairns – January Weather Averages

Ave Temp (°C) Temperature icon  27°C (81°F)
Ave High Temp (°C) Temperature icon  31°C (88°F)
Ave Low Temp (°C) temperature icon  23°C (73°F)
Sunshine (Hrs daily) sun icon  7 hours per day
Daylight (Hrs daily) 13  13 hours per day
Comfort Level High heat & humidity icon  High heat & 80% humidity
UV Index 11  Extreme
Days with some Rain umbrella icon  18 days
Ave Rainfall (mm) rain cloud  395mm
Sea Temp (°C) swimming icon  29°C (84°F)
Cairns, Queensland

Best time to visit Cairns

The best time to visit Cairns is during the winter dry season from June to mid-October, when the skies are invariably blue and the days warm and sunny, with a gently breeze.

Cairns Weather verview

Cairns – Monthly Review

January February March April
May June July August
September October November December

Note: Meteorological data is sourced from the United States National Oceanic and Atmospheric Administration (NOAA) and the World Meteorological Organization (WMO), with additional historical climate data sourced from the Bureau of Meteorology in Australia.

More about Cairns…

Latest update: Cairns Weather in January: 13 December, 2018

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