Cairns Cairns – Image courtesy of

Cairns Weather in May

May is a good time to visit Cairns, as it sees a drop in temperature.

You can expect warm weather and sea breezes with around seven hours of sunshine daily interspersed by tropical downpours that mainly fall at night. Daytime temperatures see an average high of 27°C (81°F) with a low of 20°C (68°F) at night.

Despite the occasional rain showers, May weather conditions are still good for rainforest tours, white-water rafting, game fishing and diving the Great Barrier Reef.

This is also the whale season, so it’s a good time to watch minke and giant humpback whales on their annual migration.

May in Cairns sees hotel rates rise and more visitors arrive.

Note: May falls within the so called ‘marine stinger season’. While it is rare for anyone to get badly stung, it’s probably advisable to swim on beaches with swimming enclosures; all beaches in and around Cairns have small, netted enclosures for swimming.

Cairns – May Weather Averages

Ave Temp (°C) Temperature icon  23°C (73°F)
Ave High Temp (°C) Temperature icon  27°C (81°F)
Ave Low Temp (°C) temperature icon  20°C (68°F)
Sunshine (Hrs daily) sun icon  7 hours per day
Daylight (Hrs daily) 11  11 hours per day
Comfort Level Moderately hot icon  Moderate heat & 80% humidity
UV Index 11  Extreme
Days with some Rain umbrella icon  14 days
Ave Rainfall (mm) rain cloud  91mm
Sea Temp (°C) swimming icon  26°C (79°F)
Cairns, Queensland

Best time to visit Cairns

The best time to visit Cairns is during the winter dry season from June to mid-October, when the skies are invariably blue and the days warm and sunny, with a gently breeze.

Cairns Weather verview

Cairns – Monthly Review

January February March April
May June July August
September October November December

Note: Meteorological data is sourced from the United States National Oceanic and Atmospheric Administration (NOAA) and the World Meteorological Organization (WMO), with additional historical climate data sourced from the Bureau of Meteorology in Australia.

More about Cairns…

Latest update: Cairns Weather in May: 12 December, 2018

SAVE $$$ on honeymoon travel deals

Search, compare and book the lowest possible prices on discounted airfares and hotels from our online travel partners.