May 9 is generally a great time to visit Byron Bay. While there is a slight chance of rain (30%), showers are usually brief. Expect comfortable 22°C weather. As it's peak season for Byron Bay, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Byron Bay
Currency
AUD
$ Australian dollar
Language
English
Driving
Left side
Safety
High Safety
GPI: 1.565
Byron Bay Weather Forecast for May 9
"Mild & Comfortable. Expect average highs of 21.7°C. 30% chance of rain."
What to Wear in Byron Bay in May
Based on historical data for May 9, Byron Bay typically experiences temperatures between 15.9°C and 21.7°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 30% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for Byron Bay
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
21.7°C
Daytime Peak
Average Low
15.9°C
Nighttime Low
Feels Like
22°C
☀️ Feels accurate
Rain Chance
30%
Avg 1.5mm if it rains
Cloud Cover
49%
Light drizzle
Pressure
1020.1 hPa
Medium volatility
Byron Bay Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 100% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 160 min to burn
Type III-IV
🟡 240 min to burn
Type V-VI
🟢 400 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
17.5°C
Noticeable
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Marine Conditions
Marine Life
No special warnings. Enjoy the swim!
Swim Index
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Australia
Flight Traffic
High
100/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~72
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Byron Bay
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:18
☀️ Noon
12:43
🌇 Sunset
18:08
⏱️ Daylight
10h 50m
Wind Speed
16.2 km/h
Gentle breeze
Sunshine
8.6 hrs
Direct Sun (Cloud-free)
Humidity
77%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Byron Bay
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Byron Bay
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
High pressure may reduce activity.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Byron Bay on May 9 averages 21.7°C with a 30% precipitation probability. Wedding/Outdoor Event Score: 94/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Byron Bay Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 9) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Byron Bay Worth Visiting on May 9?
Planning a trip to Byron Bay on May 9? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 21.7°C with a 30% historical precipitation risk.
✈️ Travel Logistics: Approximately 72 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 6 vaccinations are recommended for Australia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 23.2°C (swimming pool). Wave conditions are generally surfers only with heights around 2.28m.
📊 Historical Extremes: The hottest May 9 recorded in the last 30 years saw temperatures hit 25.3°C in 2016, while the coldest dropped to 10°C in 2023.