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Mackay Weather in January
January in Mackay brings high temperatures around 29°C (84°F) during the day, dropping to 25°C (77°F) at night, and as part of the rainy season, heavy rainfall is common.
Rainfall in Mackay in January
Mackay is in the rainy season in January, with rain on around 11 days and an average of 227 mm (8.9 in). Rain during the rainy season here tends to be intense rather than just persistent drizzle. Expect significant downpours, often in the late afternoon.
Temperature in Mackay in January
Daytime highs in Mackay in January reach 29°C (84°F), with nights around 25°C (77°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights are warm at 25°C (77°F). It's worth making sure your accommodation has decent ventilation or air conditioning. On average, it is the warmest month of the year.January in Mackay can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Mackay Temperature in January
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Chance of Rain
37%
Precipitation
227 mm (8.9 in)
Rainy days
11 days
Mackay Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mackay - and find the best time to visit.
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Mackay 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 records for Mackay in January
Browse day-by-day weather records for Mackay spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mackay historical weather extremes in January
The extremes listed below come from historical weather data collected in Mackay from 1976 through 2025.
- On January 28, 1978, temperatures climbed to 44°C (111°F), marking the warmest January day on record.
- The lowest daytime temperature in January was 24°C (75°F), recorded on January 14, 2023.
- Nighttime temperatures dropped to 19°C (66°F) on January 15, 2000, marking the coldest January night on record.
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Mackay 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!
What To Do in Mackay in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Mackay 3-Day Forecast
More climate data for Mackay
See the full Mackay climate overview or explore weather in Australia.
Popular in January
Where to go in January - average daytime high across popular destinations.
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