Weather in Port Douglas in April

Shoulder season. April is shoulder season in Port Douglas — cheaper, quieter, and a genuine gamble. You should expect rain on 18 days of the month, which is more days wet than dry.

April ranks 8 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 18 days, 5 of them heavy. Enough to need a plan B, not enough to need a plan around it. Natural fibres and a second shirt for the day. At 84% nothing dries, including you.

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 — 3.2 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest April day reached 31.7 °C and the coldest night fell to 21.5 °C, and the wettest single day dropped 136 mm — roughly 76% of the month's rain in one day.

April is moderately variable: 29 mm in the driest year against 703 mm in the wettest, around an average of 179 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.

Wind is light at 10.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 84%, high enough to notice on the warm days without dominating them.

How April sits in the year

Temperatures hold steady either side: 28.5 °C in March, 27.4 here, 26.1 in May. Nothing about the timing within the month matters much. Rain has already shifted: 5 days fewer than March had.

Daylight in April

Port Douglas sits close enough to the equator that daylight barely moves all year — 11.7 hours in April, 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 27.7 °C in April — warm enough that the water offers no relief from the heat. 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

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

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

April in Port Douglas versus nearby

If Port Douglas is one option among several, the nearby comparison is worth making. Cairns is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Townsville is a better bet in April — 2.6 °C warmer, 11 days less rain.

So: April is a compromise. August is 30 points better and is what Port Douglas 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 Port Douglas

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