Byron Bay weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Fair
Best time to visit: October – April
What is the weather like in Byron Bay in August?
In August, Byron Bay is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 20.8 °C – refreshing for a swim. The sun shines for around 9 hours a day. Rain falls on about 7 days, adding up to 58 mm. All in all, August is a so-so month for a holiday in Byron Bay.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 46 | 53 | 69 |
| Day | 19° | 20° | 22° |
| Night | 12° | 13° | 15° |
| Sea | 21° | 21° | 21° |
| Sun | 8 h | 9 h | 9 h |
| Rain days | 7 | 7 | 7 |
More details for August
- Daylight
- 11 h 4 min06:18 – 17:22
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 31 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+10Australia/Sydney
How the score comes together
- Temperatureweight 35 %13 %
- Seaweight 25 %54 %
- Sunshineweight 20 %92 %
- Few rainy daysweight 20 %80 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Byron Bay in August: quick answers
Is Byron Bay hot in August?
No. In August, Byron Bay is mild: daytime highs average 20 °C and nights drop to about 13 °C.
Can you swim in Byron Bay in August?
Yes. In August the sea averages 20.8 °C – refreshing for a swim.
Does it rain much in Byron Bay in August?
Rain falls on about 7 days, adding up to 58 mm.
Byron Bay month by month
The whole year in Byron BayAll destinations: AustraliaWhere to go in AugustSea temperature in August
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