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Cairns weather in May

Cairns in May averages 21°C (69°F) and 21 mm of rain.

Of the twelve months in Cairns, May is the fourth coldest and the fifth driest.

Cairns
Average temp
21°C (69°F)

16–25°C · 61–77°F

Rainfall
21 mm

Not much rain

Sunshine
—
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What is Cairns like in May?

Daytime

Days are warm, typically in the mid-20s°C or above.

Rain

Rain is usually light.

Evening

Evenings are cooler. A layer helps after sunset.

What should I pack for Cairns in May?

  • A layer for the evening

    Evenings cool off noticeably once the sun is down.

  • Comfortable walking shoes you can rinse

    Dry warm weather is walking weather, and dust gets into everything.

May compared with April and June

May in Cairns is 1.7°C cooler than April and 10 mm drier than it, which averages 22°C (72°F).

May in Cairns is 1.8°C warmer than June and about as wet as it, which averages 19°C (66°F).

Daylight in Cairns in May

On 15 May the sun is up for 11 hours 19 minutes in Cairns, rising about 06:33 and setting about 17:52 local time.

May ends 18 minutes shorter than it begins, so the last week of the month is a different length of day from the first.

That is 1 hour 49 minutes short of December, the longest-lit month here.

Where to stay in Cairns

Dates are a starting point for May.

All hotels in Cairns

Travel guides for Cairns

What to read before you book.

All travel guides in Cairns

Cairns weather by month

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 2 Sept 2026358 places covered

How May compares with the rest of the year

May is highlighted. Every other month links to its own page.

Cairns weather by month: average temperature, rainfall for each month, from 1991–2020 climate normals
MonthAverageRainfall
January25°C / 77°F227 mm
February25°C / 77°F278 mm
March24°C / 75°F172 mm
April22°C / 72°F32 mm
May21°C / 69°F21 mm
June19°C / 66°F12 mm
July18°C / 65°F14 mm
August19°C / 66°F12 mm
September21°C / 70°F9 mm
October23°C / 74°F25 mm
November24°C / 76°F59 mm
December25°C / 78°F128 mm

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FAQs about Cairns in May

May climate averages for Cairns, 1991–2020.

Cairns averages 21°C (69°F) in May, ranging from about 16°C (61°F) at night to 25°C (77°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.

Barely. May sees only about 21 mm, so rain is unlikely to affect your plans.

Yes. May averages 21°C (69°F) against 19°C (66°F) in June — 1.8°C warmer.

May is 1.7°C cooler than April, and 10 mm drier.

Yes. May falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.

This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what May is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.

About 11 hours 19 minutes of daylight in mid-May, against 13 hours 8 minutes in December and 11 hours 7 minutes in June.

On 15 May, sunrise is about 06:33 and sunset about 17:52 local time. Both shift across the month — the month ends 18 minutes shorter than it starts.