July 31 is generally a great time to visit Sydney. While there is a slight chance of rain (16%), showers are usually brief. Expect comfortable 17°C weather. Sydney is seeing high visitor numbers, so iconic spots may be busier than usual.
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Essential Travel Info for Sydney
Currency
AUD
$ Australian dollar
Language
English
Driving
Left side
Connect
See the Sydney district guides for local...
Safety
High Safety
GPI: 1.565
Sydney Weather Forecast for July 31
"Mild & Comfortable. Expect average highs of 16.7°C. 16% chance of rain."
What to Wear in Sydney in July
Based on historical data for July 31, Sydney typically experiences temperatures between 8.4°C and 16.7°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (16% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Sydney
Smart Suitcase
- Light Jacket
- Long Pants
Average High
16.7°C
Daytime Peak
Average Low
8.4°C
Nighttime Low
Feels Like
16.7°C
🌤️ Feels accurate
Rain Chance
16%
Avg 0.5mm if it rains
Cloud Cover
32%
Overcast
Pressure
1020.9 hPa
Medium volatility
Sydney Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 97% 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
11°C
Pleasant
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
❄️ Cold Water Hazard
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Australia
Flight Traffic
Busy
76/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~727
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Sydney
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:50
☀️ Noon
13:02
🌇 Sunset
18:15
⏱️ Daylight
10h 25m
Wind Speed
18.8 km/h
Gentle breeze
Sunshine
8.6 hrs
Direct Sun (Cloud-free)
Humidity
69%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Sydney
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Sydney
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very 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, Sydney on July 31 averages 16.7°C with a 16% precipitation probability. Wedding/Outdoor Event Score: 89/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Sydney 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 (July 31) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Sydney Worth Visiting on July 31?
Planning a trip to Sydney on July 31? 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 16.7°C with a 16% historical precipitation risk.
✈️ Travel Logistics: Approximately 727 landing slots available daily during this period, indicating peak tourist activity.
💉 Health Advisory: 6 vaccinations are recommended for Australia, including COVID-19.
🌊 Coastal Conditions: Water temperature averages 17.4°C (refreshing tonic). Wave conditions are generally surfers only with heights around 1.9m.
📊 Historical Extremes: The hottest July 31 recorded in the last 30 years saw temperatures hit 21.3°C in 2023, while the coldest dropped to 3.8°C in 2022.