Weather in Warrnambool in April

Prime time. If you get to pick your dates, April is the one. Highs average 18.1 °C, lows 13.2 °C, and rain falls on 9 days — nothing in the month is working against you.

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

Rain on 9 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; the day barely swings — 4.9 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest April day reached 27.9 °C and the coldest night fell to 8.4 °C, and the wettest single day dropped 32 mm — roughly 59% of the month's rain in one day.

April is moderately variable: 14 mm in the driest year against 91 mm in the wettest, around an average of 54 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.

Wind sits around 16.9 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, 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 °C cooler than March, with May dropping another 2.3 °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

11.1 hours of daylight, losing 1.2 hours across the month. That is between Warrnambool's extremes of 14.8 and 9.5 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 13.6 °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 Warrnambool versus nearby

If Warrnambool is one option among several, the nearby comparison is worth making. Ballarat is close enough to be a coin toss — within a degree on temperature, 2 days less rain. Mount Gambier 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 13 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Warrnambool

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