Weather in Mount Gambier in April

Prime time. April is about as good as Mount Gambier gets. Highs average 18.6 °C, lows 12.2 °C, and rain falls on 8 days — nothing in the month is working against you.

April ranks 5 of 12 in Mount Gambier: past the worst of the year but short of January, which is the month to book if the dates are open.

Rain on 8 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

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average April reaches 30 °C. Across the twenty years measured, the hottest April day reached 28.9 °C and the coldest night fell to 6.5 °C, and the wettest single day dropped 38 mm — roughly 79% of the month's rain in one day.

April is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest April on record still delivered 85 mm against 11 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 48 mm average is a reasonable planning figure, not a promise.

Wind is light at 12.3 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 75%, high enough to notice on the warm days without dominating them.

How April sits in the year

The month is on the way down: 2.2 °C cooler than March, with May dropping another 2.7 °C. The first week and the last are not the same trip. Rain is the thing that moves: May brings 5 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in April

11.2 hours of daylight, losing 1.1 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 16.7 °C in April — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 17.9 °C in February and bottoms out at 13.7 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

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

April 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 — within a degree on temperature, 1 day less rain.

So: April works, with January the better month by 10 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Mount Gambier

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