March weather forecast
Perth, Australia

March in Perth is a transitional time as summer bids farewell, and autumn graces the city. A detectable dip in temperature takes place, lowering to 29.6°C (85.3°F), signaling the start of the cooler months. Standout features of March include a slight increase in rainfall coupled with more humid conditions as nature prepares for autumn. With several cultural events occurring during this period, the autumnal chill mixed with summer warmth makes it an attractive time for visitors. As the month progresses, Perth's weather showcases a blend of rainy days and bright sunshine, paving the way for colorful, diverse landscapes.

Temperature

Perth in March witnesses an average high-temperature of a moderately hot 29.6°C (85.3°F), indicating a slight variation from February's 31.7°C (89.1°F). Perth experiences a significant reduction from daytime highs with an average low-temperature of 16.6°C (61.9°F) in March.

Humidity

The average relative humidity in March is 39%.

Rainfall

In Perth, in March, it is raining for 4.1 days, with typically 21mm (0.83") of accumulated precipitation. Throughout the year, there are 108.4 rainfall days, and 725mm (28.54") of precipitation is accumulated.

Sea temperature

The month with the warmest seawater is March, with an average sea temperature of 23.4°C (74.1°F).
Note: Factoring in a person's dislike for cold, combined with conditions like sunshine, wind, and temperature, a dip in 23.4°C (74.1°F) waters might be satisfying. (It is worth noting that the Olympic swimming waters are maintained between 25°C (77°F) and 28°C (82.4°F).)

Daylight

The average length of the day in March is 12h and 17min.
On the first day of March, sunrise is at 6:06 am and sunset at 6:51 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 6:13 pm AWST.

Sunshine

The average sunshine in March in Perth is 9.6h.

UV index

In March, the average daily maximum UV index in Perth is 9. A UV Index reading of 8 to 10 represents a very high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 9 during March translates into the following directions:
Act with urgency in protecting yourself. Without it, skin and eyes can be harmed in no time. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. A broad-spectrum sunscreen of SPF 30+ should be used liberally and reapplied every two hours or post an outdoor workout or swim. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.