Weather in Mount Gambier in March

Prime time. If you get to pick your dates, March is the one. Highs average 20.8 °C, lows 13.7 °C, and rain falls on 7 days — nothing in the month is working against you.

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

Rain on 7 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest March day reached 33.9 °C and the coldest night fell to 9.5 °C, and the wettest single day dropped 45 mm — roughly 118% of the month's rain in one day.

March is moderately variable: 17 mm in the driest year against 78 mm in the wettest, around an average of 38 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.

Wind is light at 12.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 72%.

How March sits in the year

Temperatures hold steady either side: 21.9 °C in February, 20.8 here, 18.6 in April. Nothing about the timing within the month matters much.

Daylight in March

12.4 hours of daylight, losing 1.2 hours across the month. That is between Mount Gambier's extremes of 14.8 and 9.6 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 17.5 °C in March — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. 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.

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

March in Mount Gambier versus nearby

If Mount Gambier is one option among several, the nearby comparison is worth making. Warrnambool is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Ballarat is close enough to be a coin toss — 3.2 °C warmer, 1 day less rain.

So: March is effectively as good as it gets here — 4 points behind January, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Mount Gambier

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