Perth in January: Weather, Average temperature and Climate
Weather in Perth in January 2027
- January is usually the driest month of the year in Perth
Average weather
Average temperature in Perth in January
The temperature in January is +90°F on average, with a range between a maximum of +100°F during the day and a minimum of +57°F at night.
The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +81°F to +91°F.
Is Perth warm or cold in January?
Perth is typically warm in January.
Maximum temperatures go up compared to the previous month from +82°F to +86°F. The minimum temperature also goes up from +63°F to +66°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
January is one of the warmest months in Perth, here is the comparison with other months:
Water temperature in Perth in January
Water in Perth in January is Comfortable. It varies from +68°F to +75°F, with an average of +71°F. The air temperature averaging +86°F is higher than the water temperature.
In January, water temperatures are average relative to the rest of the year:
Can you swim in Perth in January?
Climate in Perth in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | +82°F | +86°F | +88°F | |||
| Min. temperature | +43°F | +48°F | +48°F | |||
| Max. temperature | +108°F | +109°F | +109°F | |||
| Rainfall | 10 mm | 15 mm | 17 mm | |||
| Wind | 5 m/s | 5 m/s | 5 m/s | |||
| Avg. water temperature | +69°F | +71°F | +73°F | |||
| Humidity | 55% | 53% | 54% | |||
| Air pressure | 1012 HPa | 1010 HPa | 1011 HPa | |||
☀️ | Sunny days | 20 | 21 | 19 | ||
☁️ | Cloudy days | 6 | 6 | 5 | ||
🌧️ | Rainy days | 4 | 3 | 3 | ||
❄️ | Snowy days | 0 | 0 | 0 | ||
| Our opinion | Great | Great | Great | |||
January weather is still as great as in December. It’s getting warmer as January arrives. The average maximum temperature goes up from +82°F to +86°F during the day. Prepare for more rain. Average rainfall goes from 10 mm to 15 mm. It feels drier, as humidity decreases from 55% to 53%. The average wind speed doesn’t change much during January, staying around 5 m/s. The good news is there are likely to be more sunny days in January, from 20 to 21.
February brings much the same weather, it remains great.
Wind
The average wind speed is 7 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Perth is gradually increasing during January, going from 8 m/s to 9 m/s over the course of the month.
How was the weather last January in Perth?
Climate Change Over the Years
The climate in Perth in January has not changed that much over the last 43 years.
The average temperature was the lowest in 1990 (+72°F) and the highest in 2024 (+79°F). The driest year was 2010 with only 285 mm of rainfall, and the wettest year was 2012 with 1017 mm.
FAQ
Is January a good time to visit Perth?
Can you sunbathe in Perth in January?
Can you swim in Perth in January?
Is Perth rainy in January?
Is it sunny in Perth in January?
Other cities in Australia
Monthly weather in Perth
Source of the data
For this page, we’ve looked at the typical weather in Perth, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
