Weather in Darwin in May

A good month. May works. It is not the peak, but nothing about it fights you. Highs average 30.4 °C, lows 23.5 °C, and rain falls on 5 days — nothing in the month is working against you.

May ranks 4 of 12 in Darwin: past the worst of the year but short of July, which is the month to book if the dates are open.

Rain falls on only 5 days, so an itinerary with no wet-weather fallback is a reasonable risk. Pack for 30.4 °C days and 23.5 °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: 20 days top 30 °C, making the heat continuous rather than occasional. Across the twenty years measured, the hottest May day reached 33.5 °C and the coldest night fell to 16.2 °C, and the wettest single day dropped 34 mm — roughly 142% of the month's rain in one day.

This is the volatile part. May rainfall has ranged from 0 mm to 84 mm across the twenty years measured — a 84 mm spread around an average of 24 mm. The average is real but almost no individual May looks like it, so treat the figure as the middle of a wide range rather than a forecast.

Wind is light at 14.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 68%.

How May sits in the year

Temperatures hold steady either side: 30.7 °C in April, 30.4 here, 29.7 in June. Nothing about the timing within the month matters much. Rain has already shifted: 8 days fewer than April had.

Daylight in May

Darwin sits close enough to the equator that daylight barely moves all year — 11.5 hours in May, against a range of just 1.4 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 11.7 °C between the year's warmest afternoons and coldest nights.

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.

May in Darwin versus nearby

If Darwin is one option among several, the nearby comparison is worth making. Broome is close enough to be a coin toss — 2.4 °C warmer, 3 days less rain. Labuan Bajo is the weaker option in May — within a degree on temperature, 9 days more rain.

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

Every month in Darwin

See all twelve months in Darwin, or where else to go in May.