Weather in Albany in September

A good month. September is a solid month to be in Albany. Highs average 16.7 °C, lows 11.8 °C, and rain falls on 14 days — nothing in the month is working against you.

September ranks 9 of 12 in Albany: past the worst of the year but short of January, which is the month to book if the dates are open.

This is persistent light rain rather than storms: 14 wet days but only 2 heavy ones. It rarely cancels anything outright, and it rarely fully clears either. A jacket beats an umbrella. Pack for 16.7 °C days and 11.8 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: the day barely swings — 4.9 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest September day reached 25.7 °C and the coldest night fell to 7.8 °C, and the wettest single day dropped 48 mm — roughly 62% of the month's rain in one day.

September is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest September on record still delivered 146 mm against 32 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 78 mm average is a reasonable planning figure, not a promise.

Wind sits around 20 km/h — a steady breeze rather than a nuisance, and welcome on the warmer days, and humidity runs at 78%, high enough to notice on the warm days without dominating them.

How September sits in the year

Temperatures hold steady either side: 16.1 °C in August, 16.7 here, 18 in October. Nothing about the timing within the month matters much.

Daylight in September

11.8 hours of daylight, gaining 1.1 hours across the month. That is between Albany's extremes of 14.5 and 9.8 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 16.1 °C in September — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 19.8 °C in February and bottoms out at 16.1 °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.

September in Albany versus nearby

If Albany is one option among several, the nearby comparison is worth making. Bunbury is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Perth is a better bet in September — within a degree on temperature, 3 days less rain.

So: September is a compromise. January is 28 points better and is what Albany 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 Albany

See all twelve months in Albany, or where else to go in September.