September 19 is generally a great time to visit Perth. While there is a slight chance of rain (15%), showers are usually brief. Expect comfortable 19°C weather. As it's peak season for Perth, we recommend booking your stay well in advance to secure the best rates.
View the full calendar
Essential Travel Info for Perth
Currency
AUD
$ Australian dollar
Language
English
Driving
Left side
Safety
High Safety
GPI: 1.565
Perth Weather Forecast for September 19
"Mild & Comfortable. Expect average highs of 19°C. 15% chance of rain."
What to Wear in Perth in September
Based on historical data for September 19, Perth typically experiences temperatures between 10.9°C and 19°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (15% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Perth
Smart Suitcase
- Light Jacket
- Long Pants
Average High
19°C
Daytime Peak
Average Low
10.9°C
Nighttime Low
Feels Like
19°C
🌤️ Feels accurate
Rain Chance
15%
Avg 1mm if it rains
Cloud Cover
42%
Light drizzle
Pressure
1019.4 hPa
Medium volatility
Perth Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
~ Weather is generally predictable, but pack for minor variations. A light backup layer is recommended.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 18:00
Type I-II
🔴 22 min to burn
Type III-IV
🟡 33 min to burn
Type V-VI
🟢 55 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
14°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
⚠️ Mixed Conditions
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in Australia
Flight Traffic
High
90/100 pressure index
Health Advisory
Required
1 vaccine • View Details →
Landing Slots
~224
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Perth
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:12
☀️ Noon
12:11
🌇 Sunset
18:11
⏱️ Daylight
11h 59m
Wind Speed
23.5 km/h
Moderate wind
Sunshine
10.4 hrs
Direct Sun (Cloud-free)
Humidity
73%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for Perth
Smart Flight Estimator
Airport-to-Airport Logistics
unlock smart flight estimates
Add your home location in settings to see airport details.
Travel Health & Safety in Perth
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
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, Perth on September 19 averages 19°C with a 15% precipitation probability. Wedding/Outdoor Event Score: 100/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Perth Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Compare Other Cities
Same date (September 19) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Perth Worth Visiting on September 19?
Planning a trip to Perth on September 19? 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 19°C with a 15% historical precipitation risk.
✈️ Travel Logistics: Approximately 224 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 18°C (refreshing tonic). Wave conditions are generally surfers only with heights around 1.29m.
📊 Historical Extremes: The hottest September 19 recorded in the last 30 years saw temperatures hit 20.8°C in 2017, while the coldest dropped to 7.8°C in 2018.