Weather in Port Douglas in October

Prime time. October is about as good as Port Douglas gets. Highs average 28.4 °C, lows 23.2 °C, and rain falls on 8 days — nothing in the month is working against you.

October ranks 5 of 12 in Port Douglas: past the worst of the year but short of August, 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. Pack for 28.4 °C days and 23.2 °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: 4 days top 30 °C — hot spells arrive, but they break; the day barely swings — 5.2 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest October day reached 34.6 °C and the coldest night fell to 20.1 °C, and the wettest single day dropped 86 mm — roughly 159% of the month's rain in one day.

This is the volatile part. October rainfall has ranged from 1 mm to 235 mm across the twenty years measured — a 234 mm spread around an average of 54 mm. The average is real but almost no individual October looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 9.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 74%.

How October sits in the year

Temperatures hold steady either side: 27 °C in September, 28.4 here, 29.5 in November. Nothing about the timing within the month matters much.

Daylight in October

Port Douglas sits close enough to the equator that daylight barely moves all year — 12.4 hours in October, against a range of just 1.9 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 26 °C in October — warm enough to stay in as long as you like. The sea peaks at 29.2 °C in February and bottoms out at 24.7 °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.

October in Port Douglas versus nearby

If Port Douglas is one option among several, the nearby comparison is worth making. Cairns is the weaker option in October — 2.7 °C warmer, the same number of rain days. Townsville is the weaker option in October — 3.2 °C warmer, 3 days less rain.

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

Every month in Port Douglas

See all twelve months in Port Douglas, or where else to go in October.