Cairns Weather in January
Thinking of visiting Cairns in January? Expect high temperatures reaching 29°C (84°F) during the day, dropping to 24°C (75°F) at night. Heavy showers are common during the rainy season.
Rainfall in Cairns in January
As part of the rainy season, Cairns sees around 14 days of rain in January, with an average of 252 mm (9.9 in). Showers during the rainy season tend to be heavy and can come down intensely. An umbrella is often not enough, so a poncho or waterproof jacket is a better choice.
Temperature in Cairns in January
In January, Cairns sees high temperatures, with highs of 29°C (84°F). Nights drop to around 24°C (75°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Cairns in January
Enjoy a sunny month with about 208 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.
Average water temperature in January
At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.For Cairns itself, May, June, July, August, September, October and November generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Australia, check out our Cairns's climate page.
Cairns Temperature in January
Min Temperature
24°C (75°F)
Max Temperature
29°C (84°F)
Water Temperature
28°C (82°F)
Chance of Rain
45%
Precipitation
252 mm (9.9 in)
Rainy days
14 days
Humidity
68%
Sunshine
208 hours
Percentage Sunshine
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Cairns typically stay consistent throughout January, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Cairns in January
Browse day-by-day weather records for Cairns spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Cairns historical weather extremes in January
According to our 49 years of weather records for Cairns, the following extremes were recorded between 1976 and 2025.
- The warmest day in January was on January 21, 1994, with a maximum of 39°C (102°F).
- Cairns experienced its chilliest January day on January 8, 1981, reaching only 24°C (75°F).
- The lowest overnight temperature recorded in January was 18°C (64°F) (January 8, 1977).
Best Places in Australia in January
Find out more about the weather in Australia and which places have the best travel conditions in this month. See all of Australia in January →
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What to Wear in Cairns in January
Warm temperatures in January make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything! The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Cairns in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Australia, check out our Cairns's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Cairns climate overview or explore weather in Australia.
