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.
|Ave Temp (°C)||23°C (73°F)|
|Ave High Temp (°C)||27°C (81°F)|
|Ave Low Temp (°C)||20°C (68°F)|
|Sunshine (Hrs daily)||7 hours per day|
|Daylight (Hrs daily)||11||11 hours per day|
|Comfort Level||Moderate heat & 80% humidity|
|Days with some Rain||14 days|
|Ave Rainfall (mm)||91mm|
|Sea Temp (°C)||26°C (79°F)|
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.
|› 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.
Latest update: Cairns Weather in May: 12 December, 2018
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