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Adelaide Weather in January

January in Adelaide typically sees daytime highs of 27°C (81°F) and nighttime lows of 16°C (61°F). Expect some rainfall during the month. It falls within the summer season.

Rainfall in Adelaide in January

Climate statistics over the past 30 years suggest around 6 days of rain, with 22 mm (0.9 in) average for the month. The occasional light shower is possible, but rain is rarely an issue this month.

Temperature in Adelaide in January

The excellent temperature in Adelaide in January makes it a solid month to visit, with 27°C (81°F) during the day and 16°C (61°F) at night. The month of January belongs to the summer season. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 16°C (61°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. This is typically the warmest month of the year, so light summer clothing is a good idea.

Sunshine in Adelaide in January

With approximately 326 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in Adelaide in January

Wind speeds average 4 m/s (8 knots) during January. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

Average water temperature in January

At 23°C (73°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

If you favor pleasant temperatures and minimal rainfall, January is one of the best months to visit Adelaide.

Adelaide Temperature in January

Min Temperature
16°C (61°F)
Max Temperature
27°C (81°F)
Water Temperature
23°C (73°F)
Chance of Rain
21%
Precipitation
22 mm (0.9 in)
Rainy days
6 days
Humidity
36%
Windspeed
4 m/s (8 knots)
Sunshine
326 hours
Percentage Sunshine
53%

Adelaide Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Adelaide - and find the best time to visit.

Daily Historical Temperatures

51-year average (1976-2026)

Based on our historical records, temperatures in Adelaide typically stay consistent throughout January, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows around 16°C (61°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 Adelaide in January

Browse day-by-day weather records for Adelaide spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Adelaide historical weather extremes in January

The extremes listed below come from historical weather data collected in Adelaide from 1981 through 2025.

  • The warmest day in January was on January 28, 2009, with a maximum of 44°C (111°F).
  • The coldest January day was on January 11, 1983, with a maximum of 15°C (59°F).
  • The coldest night in January in Adelaide was on January 9, 2002, with a minimum of 9°C (48°F).

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 Adelaide 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. Pack a light rain jacket or compact umbrella for occasional showers. With water temperatures around 23°C (73°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Adelaide in January

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    10/10
  • Cycling
    8/10
  • Walking
    8/10
  • Barbeque
    10/10
  • Camping
    10/10
  • Outdoor sports
    8/10

Adelaide 3-Day Forecast

Popular in January

Where to go in January - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.