Byron Bay weather in May
May in Byron Bay: nice, rainy, with clean air — a great time to visit.
#11 of 12 months in Byron Bay · #584 of 897 destinations to visit in May · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Byron Bay in May
No notes yet. Open Byron Bay on the map to add the first one.
Byron Bay climate normals — May
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 16°C / 60°F | |
| Rainfall | 86 mm / 3.4 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 14°C / 56°F | |
| Sunshine | 8.5 h/day | |
| Daylight | 10.7 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 28 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Byron Bay?
Loading map…
Byron Bay in May — FAQ
- Is May a good time to visit Byron Bay?
- May in Byron Bay: nice, rainy, with clean air — a great time to visit. It ranks #11 of 12 months for Byron Bay on SeasonMap's comfort score (78/100).
- What is the weather like in Byron Bay in May?
- In May, Byron Bay averages a daily high of 20.8°C and a low of 15.5°C, with about 86.1 mm of rain over roughly 12 rainy days.
- What is the air quality in Byron Bay in May?
- Byron Bay has a mean US Air Quality Index of about 28 in May.