Perth weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Excellent
Best time to visit: March – May, September – December
What is the weather like in Perth in March?
In March, Perth is hot: daytime highs average 29 °C, and nights cool down to about 18 °C. The sea averages 22.5 °C – refreshing for a swim. With around 10 hours of sunshine a day, there is plenty of sun. Rain is rare: about 3 days bring 20 mm in total. On about 13 days the thermometer climbs to 30 °C or more. All in all, March is an excellent month for a holiday in Perth.
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 72 | 88 | 96 |
| Day | 32° | 29° | 25° |
| Night | 19° | 18° | 15° |
| Sea | 23° | 23° | 22° |
| Sun | 11 h | 10 h | 8 h |
| Rain days | 1 | 3 | 4 |
More details for March
- Daylight
- 12 h 20 min06:16 – 18:36
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 2 daysdew point 18 °C or more
- Wind
- 26 km/haverage daily peak
- Cloud cover
- 30 %on average
- Hot days
- 13 days30 °C or more
- Time zone
- UTC+8Australia/Perth
How the score comes together
- Temperatureweight 50 %75 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in March
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
Perth in March: quick answers
Is Perth hot in March?
Yes. In March, Perth is hot: daytime highs average 29 °C and nights stay around 18 °C. On about 13 days the thermometer climbs to 30 °C or more.
Can you swim in Perth in March?
Yes. In March the sea averages 22.5 °C – refreshing for a swim.
Does it rain much in Perth in March?
Rain is rare: about 3 days bring 20 mm in total.
Perth month by month
The whole year in PerthAll destinations: AustraliaWhere to go in MarchSea temperature in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)