Weather in Bunbury in March

Prime time. If you get to pick your dates, March is the one. Highs average 28.8 °C, lows 16.1 °C, and rain falls on 3 days — nothing in the month is working against you.

March ranks 3 of 12 in Bunbury. Only November scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain falls on only 3 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 28.8 °C days and 16.1 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 12 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest March day reached 40.7 °C and the coldest night fell to 8.9 °C, and the wettest single day dropped 46 mm — roughly 230% of the month's rain in one day.

March is moderately variable: 1 mm in the driest year against 52 mm in the wettest, around an average of 20 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.

Wind is light at 14 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 59%.

How March sits in the year

The month is on the way down: 2.2 °C cooler than February, with April dropping another 4.3 °C. The first week and the last are not the same trip.

Daylight in March

12.3 hours of daylight, losing 1 hours across the month. That is between Bunbury's extremes of 14.3 and 10 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 22.7 °C in March — comfortable for a proper swim. This is the warmest the water gets all year.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, May is the trade worth considering — 12 points weaker on weather, and materially quieter.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

March in Bunbury versus nearby

If Bunbury is one option among several, the nearby comparison is worth making. Perth is close enough to be a coin toss — 2.9 °C cooler, the same number of rain days. Albany is close enough to be a coin toss — 6.6 °C cooler, 5 days more rain.

So: March is effectively as good as it gets here — 2 points behind November, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Bunbury

See all twelve months in Bunbury, or where else to go in March.