Cairns weather in May 2026

Expect daytime maximum temperatures of 27°C in Cairns, Queensland in May based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 138 mm of rainfall in the month.

  • 27°C maximum daytime temperature in May in Cairns27
    27°C max day temperature
  • 6 hours of sunshine per day
  • 8 days with some rainfall in May in Cairns8
    8 days with some rainfall
  • 19°C minimum night-time temperature in May in Cairns19
    19°C min night temperature
  • 11 hours of daylight per day in May in Cairns11
    11 hours of daylight per day
  • Moderate heat & humidity in May in CairnsM
    Moderate heat & humidity
  • 138 mm monthly rainfall in May in Cairns138
    138 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Cairns8
    8 (Very High) UV index
  • 25°C sea temperature in May in Cairns25
    25°C sea temperature

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The May weather guide for Queensland (Cairns) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Cairns in May?

Daytime temperatures usually reach 27°C in Cairns in May with moderate heat and humidity, falling to 19°C at night.

How sunny is it in Cairns in May?

There are normally 6 hours of bright sunshine each day in Cairns in May - that's 56% of daylight hours.

How warm is the sea around Cairns in May?

The average sea temperature around Cairns in May is 25°C.

Does it rain in Cairns in May?

There are usually 8 days with some rain in Cairns in May and the average monthly rainfall is 138mm.

Cairns May sunrise & sunset times

Browse the sunrise and sunset times for Cairns in May 2026. Select a month to view Cairns sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2026 06:29 17:59
Saturday, 16th May 2026 06:34 17:53
Sunday, 31st May 2026 06:39 17:50

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