Your trips
Organise your trips easily with tabs
London
Perth
Any date
+ Search
background

Perth in January: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Perth in January will be like? Take a look at our weather guide for Perth, based on historical data.
Check flight prices to Perth on Avionero:
January

Weather in Perth in January 2025

Great Weather
Warm
☀️
Sunny
🌊
Comfortable water
January is an ideal time to visit Perth if you're seeking a destination with brilliant weather. Anticipate average maximum temperatures of +30°C and about 21 sunny days, ensuring you'll have ample opportunities to soak up the sunshine. It's worth noting, though, that there may be some rainfall, with approximately 15 mm of precipitation over an average of 3 rainy days. So, prepare your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flights in one click on Avionero.
Good to know:
  • January is usually the driest month of the year in Perth

Average weather

☀️
+30°C
Avg. max. temperature
+9°C
Min.
+43°C
Max.
15 mm
Total precipitation
53%
Avg. humidity
5 m/s
Avg. wind
21 ☀️
Sunny Days
6 ⛅️
Cloudy
3 🌦
Rainy
Our opinion: Perth has great weather in January.

Average temperature in Perth in January

Here are the expected maximum, average and minimum temperatures in Perth for January based on the historical data.
Last Year
Historical Data

Going from a maximum of +38°C during the day to a minimum of +14°C during the night, the temperature in January averages around +32°C.

The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +27°C to +33°C.

Is Perth warm or cold in January?

Perth is typically warm in January.

Maximum temperatures go up compared to the previous month from +28°C to +30°C. The minimum temperature also goes up from +17°C to +19°C.

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 +20°C to +24°C, with an average of +22°C. The air temperature averaging +30°C is higher than the water temperature.

In January, water temperatures are average relative to the rest of the year:

The warmest water temperatures in Perth are reached in March, when the average sea temperature rises to +23°C. The coldest water temperatures are in September, with an average of +19°C.

Can you swim in Perth in January?

The water in Perth in January is pretty comfortable (+22°C in average). Ideal for swimming, especially in outdoor pools and open water. Suitable for recreational and casual swimmers.
🦭
Cold
Below +16°C
🏄‍♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
Don’t forget a large beach towel or two for drying off.

Climate in Perth in January

Perth weather looks like this, on average, in January and the surrounding months.
DecemberJanuaryFebruary
Avg. temperature
+28°C+30°C+31°C
Min. temperature
+6°C+9°C+9°C
Max. temperature
+42°C+43°C+43°C
Rainfall
10 mm15 mm17 mm
Wind
5 m/s5 m/s5 m/s
Avg. water temperature
+21°C+22°C+23°C
Humidity
55%53%54%
Air pressure
1012 HPa1010 HPa1011 HPa
Sunny days
202119
Cloudy days
665
Rainy days
433
Snowy days
000

January weather is still as great as in December. It’s getting warmer as January arrives. The average maximum temperature goes up from +28°C to +30°C 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

Wind speed in Perth in January based on historical data.
Last Year
Historical Data

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?

This is the weather in Perth in January 2023:
1 January
☀️
+27°C
2 January
☀️
+32°C
3 January
☀️
+34°C
4 January
☀️
+35°C
5 January
☀️
+37°C
6 January
☀️
+31°C
7 January
☀️
+26°C
8 January
☀️
+28°C
9 January
☀️
+36°C
10 January
☁️
+34°C
11 January
☀️
+26°C
12 January
☀️
+30°C
13 January
☀️
+27°C
14 January
☀️
+31°C
15 January
☀️
+30°C
16 January
☀️
+25°C
17 January
☀️
+28°C
18 January
☀️
+31°C
19 January
☀️
+34°C
20 January
☀️
+36°C
21 January
☀️
+38°C
22 January
☀️
+31°C
23 January
☀️
+33°C
24 January
☀️
+32°C
25 January
☀️
+31°C
26 January
☀️
+32°C
27 January
☀️
+27°C
28 January
☀️
+30°C
29 January
☀️
+36°C
30 January
☀️
+37°C
31 January
☀️
+33°C
In January 2023 Perth had 30 sunny days, 1 cloudy days, and 0 rainy days. The average maximum temperature was +32°C, with an absolute maximum of +38°C and a minimum of +25°C. The average humidity was 47%, with a maximum of 95% and a minimum of 12%. The average wind speed was 7 m/s, with a maximum of 15 m/s and a minimum of 1 m/s.
Are you planning a trip in January?

Climate Change over Years

This is how Perth climate have been changing during last 43 years period.

The climate in Perth in January has not changed much over the last 43 years.

The average temperature was the lowest in 1990 (+22°C) and the highest in 2023 (+25°C). The driest year was 2010 with only 285 mm of rainfall, and the wettest year was 2012 with 1017 mm.

FAQ

Frequently asked questions about the weather in Perth in January:

Is January a good time to visit Perth?

Yes, January is a great time to go to Perth, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Perth.

Can you sunbathe in Perth in January?

January is warm in Perth. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Can you swim in Perth in January?

Yes, the water temperature in Perth in January is considered moderate and enjoyable for most people, averaging around +22°C.

Is Perth rainy in January?

Perth is usually dry in January. Plan your packing around outdoor activities and exploring.

Is it sunny in Perth in January?

Yes, Perth is sunny in January. Prepare for lots of rays. Don’t forget to pack your sunglasses and sunscreen, and maybe pick up a wide-brimmed hat when you arrive.

Other cities in Australia

Check out the weather for 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.