Byron Bay weather in May
Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in May
Fair
Best time to visit: October – April
What is the weather like in Byron Bay in May?
In May, Byron Bay is mild: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 23.8 °C – pleasant for swimming. The sun shines for around 7 hours a day. Rain is frequent, with about 11 rainy days and 95 mm in total. All in all, May is a so-so month for a holiday in Byron Bay.
May compared
How the weather changes from April to June. Tap a month to open it.
More details for May
- Daylight
- 10 h 43 min06:20 – 17:03
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 45 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+10Australia/Sydney
How the score comes together
- Temperatureweight 35 %30 %
- Seaweight 25 %97 %
- Sunshineweight 20 %67 %
- Few rainy daysweight 20 %49 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in May
- Swimwear
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Byron Bay in May: quick answers
Is Byron Bay hot in May?
No. In May, Byron Bay is mild: daytime highs average 21 °C and nights drop to about 15 °C.
Can you swim in Byron Bay in May?
Yes. In May the sea averages 23.8 °C – pleasant for swimming.
Does it rain much in Byron Bay in May?
Rain is frequent, with about 11 rainy days and 95 mm in total.
Byron Bay month by month
The whole year in Byron BayAll destinations: AustraliaWhere to go in MaySea temperature in May
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences