Byron Bay (Byron) weather in August
August in Byron Bay: nice, a little rain, with clean air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#7 of 12 months in Byron Bay · #538 of 1413 destinations to visit in August · comfort 83/100 (tier A)
- Days
- 21°C
- Nights
- 14°C
- Wet days
- 7
- Sun
- 9.6 h
- Humidity
- 71%
- Daylight
- 11 h

Traveller notes on Byron Bay in August
Notes from nearby Gold Coast (74 km away)
Byron Bay doesn't have its own notes for August yet — these are about Gold Coast, close enough to share the season.
Regulars call this the last stretch of winter, sunny days in the low-to-mid 20s Celsius the norm even as mornings, evenings and the sea breeze can still push it toward genuinely cool. Our row backs that mild, still-dry read, 22.7C over 12.8C nights feeling 12C, with rain light at 41mm across 4.5 days and humidity at 71 percent. Regulars are consistent the wind specifically is what catches people off guard, a sunny-looking day still needing a windbreaker layer once that sea breeze picks up. This remains a genuinely good month for beach walks and outdoor sightseeing without summer's crowds or heat, though the sea itself stays too cool for most to swim comfortably. The sea sits at 20.4C. The record: 9.6 hours of sun, a 14.7 kph wind and AQI 40.
Other months in Byron Bay
Forum posters describe July temperatures in Byron Bay as commonly around 19-20C most days, mild for the depths of Australian winter thanks to the town's far-northern New South Wales location, warmer overall than beaches further south. Posters are consistent that Byron Bay is worth visiting any time of year, with shorts still perfectly reasonable daywear, though a wetsuit becomes genuinely necessary for winter swimming or surfing. Posters recommend long pants or, for women, tights under a skirt for cooler evening outings. Posters generally rate July as mild and pleasant by regional winter standards for Byron Bay, workable for outdoor exploring even if the water itself runs cold.
January in Byron Bay is hot, wet and packed all at once. The forum's summary is that it either rains or is stinking hot, with school holidays running to late January, accommodation at peak prices and booked well ahead, and the town super-packed at weekends. The record backs the wet half: near fourteen rain-days, against 27°C by day and 22 overnight, with the sea at 25. Regulars' fix for the heat is timing — start walks at first light. Their fix for everything else is to come in April or May instead.
Add your own note from Byron Bay's card on the map.
Byron Bay climate normals — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Byron Bay in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsHumpback migration past the cape, Byron Writers Festival, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Byron Bay's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherByron Bay's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Byron Bay in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Humpback migration past the cape
1 Jun – 15 Nov · usuallyWhale seasonCrowdedCape Byron sticks out into the migration route, so the lighthouse walk is one of the more reliable land-based watches in the country. Northbound whales peak around July; mothers and calves loaf closer in from August. Source ↗
- Festival
Byron Writers Festival
14–16 AugArts festivalCrowdedBook earlyThree days of talks across venues in the middle of town rather than out at the old marquee site. It lands in the quietest month of the year for beds, which is the only weekend in winter you need to book one. Source ↗
Nearby, and something's on
Within 300 km of Byron Bay — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Byron Bay?
Byron Bay in August — FAQ
- Is August a good time to visit Byron Bay?
- August in Byron Bay: nice, a little rain, with clean air — an excellent time to visit. It ranks #7 of 12 months for Byron Bay on SeasonMap's comfort score (83/100).
- What is the weather like in Byron Bay in August?
- In August, Byron Bay averages a daily high of 21.1°C and a low of 14°C, with about 75.6 mm of rain over roughly 7.2 rainy days.
- What is the air quality in Byron Bay in August?
- Byron Bay has a mean US Air Quality Index of about 33 in August.
Within 300 km: Gold Coast's Humpback migration around 1 Jun – 15 Nov, and Brisbane's Humpbacks in Moreton Bay around 1 Jun – 5 Nov.