Perth weather by month & the best time to visit
🇦🇺 Australia · major coastal city · Mediterranean climate
The best time to visit Perth is March — its sunniest month (Sunshine Score 95/100), with November and April close behind. Perth averages about 3,335 hours of sunshine a year. Daytime highs around 32°C / 90°F and roughly 20 mm of rain in March.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 3,335
- Sunniest month
- March
- Peak score
- 95/100
- Rain / year
- 610 mm
- Midday UV at peak
- 13 (extreme)
- Sea at warmest
- 25°C / 77°F
- Population
- 2.4M
- Elevation
- 16 m
When is the best time to visit Perth?
For sunshine, the best time to visit Perth is March, then November and April. The dullest month is July (59/100, 114 mm of rain). The full month-by-month picture is in the table below.
How sunny is Perth?
Perth is one of the sunniest places on Earth: about 3,335 hours of sunshine a year. March (95/100) is noticeably better than July (59). It ranks #41 of 118 destinations in Australia for annual sunshine, above the national median of 3,071 hours. Rain has a clear season: the wettest stretch, around July, carries about 50% of the annual 610 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 66 | 35° / 95°F | 18° / 64°F | 22 mm | 13 | 25° / 77°F |
| February | 67 | 35° / 95°F | 18° / 64°F | 16 mm | 12 | 25° / 77°F |
| March | 95 | 32° / 90°F | 16° / 61°F | 20 mm | 10 | 23° / 73°F |
| April | 93 | 27° / 81°F | 13° / 55°F | 32 mm | 6 | 21° / 70°F |
| May | 85 | 22° / 72°F | 10° / 50°F | 74 mm | 4 | 20° / 68°F |
| June | 68 | 18° / 64°F | 8° / 46°F | 95 mm | 3 | 19° / 66°F |
| July | 59 | 17° / 63°F | 8° / 46°F | 114 mm | 3 | 18° / 64°F |
| August | 67 | 18° / 64°F | 8° / 46°F | 99 mm | 4 | 18° / 64°F |
| September | 79 | 19° / 66°F | 8° / 46°F | 68 mm | 6 | 18° / 64°F |
| October | 93 | 24° / 75°F | 10° / 50°F | 33 mm | 8 | 20° / 68°F |
| November | 95 | 29° / 84°F | 13° / 55°F | 24 mm | 11 | 21° / 70°F |
| December | 87 | 33° / 91°F | 16° / 61°F | 13 mm | 12 | 23° / 73°F |
Sea temperature in Perth by month
The sea off Perth is warmest in January at around 25°C / 77°F, and coolest in July at 18°C / 64°F. The water sits at a comfortable 21°C or warmer roughly 6 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Perth on the interactive sunshine globe →
Nearby places for sunshine
- Kalgoorlie Australia · 537 km · best in Apr · 3,498 h sun/yr
- Newman Australia · 1,020 km · best in Aug · 3,765 h sun/yr
- Karratha Australia · 1,251 km · best in Aug · 3,645 h sun/yr
- Port Hedland Australia · 1,312 km · best in Aug · 3,669 h sun/yr
- Broome Australia · 1,678 km · best in Aug · 3,549 h sun/yr
- Alice Springs Australia · 1,978 km · best in Aug · 3,770 h sun/yr
Nearest destinations
- Busselton Australia · 201 km · 2,875 h sun/yr · best in Feb
- Karara Australia · 311 km · 3,644 h sun/yr · best in Oct
- Geraldton Australia · 370 km · 3,551 h sun/yr · best in Dec
- Kalbarri Australia · 500 km · 3,679 h sun/yr · best in Nov
- Esperance Australia · 581 km · 2,991 h sun/yr · best in Dec
Head-to-head
How Perth compares month by month: Perth vs Kalgoorlie · Perth vs Karratha · Perth vs Newman · all comparisons
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