Weather in Bunbury in April
Australia · 20-year averages, April
Prime time. If you get to pick your dates, April is the one. Highs average 24.5 °C, lows 14.1 °C, and rain falls on 7 days — nothing in the month is working against you.
April ranks 4 of 12 in Bunbury: past the worst of the year but short of November, which is the month to book if the dates are open.
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 April day reached 33.3 °C and the coldest night fell to 8 °C, and the wettest single day dropped 49 mm — roughly 117% of the month's rain in one day.
April is moderately variable: 2 mm in the driest year against 89 mm in the wettest, around an average of 42 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.
Wind is light at 11.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 67%.
How April sits in the year
The month is on the way down: 4.3 °C cooler than March, with May dropping another 3.8 °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
11.3 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 22.4 °C in April — 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.
April 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 — within a degree on temperature, 1 day less rain. Albany is close enough to be a coin toss — 3.6 °C cooler, 4 days more rain.
So: April 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
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|
| January | 31 | 16.3 | 2 | 16 | 54 | 14.1 | 21.5 | 77 |
| February | 31 | 17 | 2 | 11 | 55 | 13.3 | 22.2 | 79 |
| March | 28.8 | 16.1 | 3 | 20 | 59 | 12.3 | 22.7 | 87 |
| April | 24.5 | 14.1 | 7 | 42 | 67 | 11.3 | 22.4 | 87 |
| May | 20.7 | 12.3 | 12 | 97 | 73 | 10.4 | 21.9 | 77 |
| June | 17.9 | 10.9 | 15 | 118 | 78 | 10 | 21.2 | 64 |
| July | 16.4 | 9.8 | 17 | 131 | 81 | 10.1 | 20.3 | 56 |
| August | 16.7 | 9.7 | 15 | 115 | 81 | 10.9 | 19.4 | 60 |
| September | 17.6 | 9.8 | 14 | 89 | 79 | 11.8 | 18.7 | 66 |
| October | 20.5 | 10.8 | 8 | 40 | 75 | 12.9 | 19 | 86 |
| November | 24.5 | 12.8 | 6 | 33 | 66 | 13.8 | 19.7 | 89 |
| December | 28.4 | 14.6 | 3 | 18 | 57 | 14.3 | 20.6 | 89 |
See all twelve months in Bunbury, or where else to go in April.
Planning the rest of the trip
- Where to eat & stay in Bunbury every café, restaurant and hotel
- Flight time to Bunbury how long you are actually in the air
- Bunbury time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in Bunbury keep training while you are there