Verdict: Excellent month
Perth Weather in January
January runs warm in Perth, with daily highs around 30°C (86°F) and nights near 19°C (66°F). Rain is a non-issue, with only ~0 wet days in an average year. Overall, January is one of the best months of the year to be in Perth.
Average high
30°C / 86°F
Average low
19°C / 66°F
Rain days
~0
Precipitation
2 mm
What to pack for Perth in January
- Light, breathable clothing — linen and technical fabrics earn their keep
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Comfortable walking shoes — every guide on this site assumes you'll use them
January against the rest of the year
Warmest in Perth: Feb (31°C / 88°F) · Coolest: Jun (18°C / 64°F) · Wettest: Jul (~17 rain days)
30°
19°
Jan
31°
20°
Feb
29°
18°
Mar
25°
15°
Apr
22°
13°
May
18°
11°
Jun
18°
11°
Jul
18°
10°
Aug
20°
11°
Sep
22°
12°
Oct
25°
15°
Nov
29°
18°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)