Weather in Bunbury in July

Shoulder season. July sits in between. You will get good days and you will lose some. You should expect rain on 17 days of the month, which is more days wet than dry.

July ranks 12 of 12 — near the bottom of Bunbury's year. November is the month that works, and the swing between the two is 33 points, which is a different holiday rather than a slightly better one.

Rain on 17 days, 4 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 16.4 °C days and 9.8 °C nights; the spread matters more here than any single number.

What the averages hide

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest July day reached 22.1 °C and the coldest night fell to 4 °C, and the wettest single day dropped 37 mm — roughly 28% of the month's rain in one day.

July is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest July on record still delivered 215 mm against 60 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 131 mm average is a reasonable planning figure, not a promise.

Wind is light at 12.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 81%, high enough to notice on the warm days without dominating them.

How July sits in the year

Temperatures hold steady either side: 17.9 °C in June, 16.4 here, 16.7 in August. Nothing about the timing within the month matters much.

Daylight in July

July sits at the dark end of Bunbury's year — 10.1 hours of daylight against 14.3 at midsummer, gaining 0.5 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.

Sea temperature

The sea sits at about 20.3 °C in July — swimmable, but it takes a moment to commit. The sea peaks at 22.7 °C in March and bottoms out at 18.7 °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

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

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

July 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, 2 days less rain. Albany is close enough to be a coin toss — within a degree on temperature, 1 day more rain.

So: July is a compromise. November is 33 points better and is what Bunbury is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Bunbury

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