30YearWeather
Sydney, December 25
Sydney street view during December
Historical Weather Analysis

Sydney Weather on December 25 — Best Time to Visit?

Based on 30 years of historical data, we have the answer.

cloudy

24.7°C

High

17.6°C

Low

28%

Rain

☀️ Feels like 25.4°C (humidity)

partly-cloudy-day
YES, GOOD CHOICE
HolidayPeak Season

December 25 is generally a great time to visit Sydney. While there is a slight chance of rain (28%), showers are usually brief. Expect comfortable 25°C weather. Expect a bustling atmosphere in Sydney right now—this is when the city truly comes alive with visitors. Note: December 25 is Christmas Day in Sydney, so expect special events, closures, and festive atmosphere.

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 December 25

"Mild & Comfortable. Expect average highs of 24.7°C. 28% chance of rain."

What to Wear in Sydney in December

Based on historical data for December 25, Sydney typically experiences temperatures between 17.6°C and 24.7°C. We recommend packing t-shirt, light clothing to stay comfortable. With a 28% chance of rain, keeping a raincoat or umbrella handy is a smart move.

Complete Packing Guide

Weekly breakdown & essential items for Sydney

View Guide

Smart Suitcase

  • T-Shirt
  • Light Clothing

Average High

extreme-hot

24.7°C

Daytime Peak

Average Low

extreme-cold

17.6°C

Nighttime Low

Feels Like

partly-cloudy-day

25.4°C

☀️ Feels accurate

Rain Chance

rain

28%

Avg 1.4mm if it rains

Cloud Cover

cloudy

54%

Overcast

Pressure

pressure

1012.9 hPa

Medium volatility

Sydney Weather Conditions & UV Index

Weather Confidence

30-year variance analysis

88%Highly Predictable

Based on 10 years of data

Temperature
±2.5°CStable
Precipitation
14-60%Unpredictable

🎯 This date historically delivers consistent weather 88% of the time. Safe to plan outdoor activities with confidence.

Sun Exposure

UV Index & Safety Guide

6.3High
036811+

Protection Needed

SPF 30+ required, seek shade

Safe Sun Windows
Morning

05:00 - 10:00

Afternoon

16:00 - 20:00

Peak danger: 10:30 - 14:30
Time to Sunburn

Type I-II

🔴 13 min to burn

Type III-IV

🟡 20 min to burn

Type V-VI

🟢 33 min to burn

UV estimate based on latitude, season & cloud cover. Actual UV may vary.

Outdoor Comfort

How pleasant is it outside?

77Good
TemperatureWarm
HumidityMuggy
WindBreezy

Dew Point

19.5°C

Noticeable

Heat Stress

Low

No heat warning

🙂 Best outdoor time:
Any time during daylight hours

Marine Conditions

Water Temp
21.3°C
🏊 Swimming Pool
Avg daily surface temperature
Surf Conditions
1.19m
🌊 Fun Waves
Max daily wave height
Advisories

Marine Life

No special warnings. Enjoy the swim!

Swim Index

⚠️ Mixed Conditions

Travel & Logistics Insights

Local Calendar

Holiday

Christmas Day

Flight Traffic

High

100/100 pressure index

Health Advisory

Required

1 vaccine • View Details →

Landing Slots

~955

Daily arrival options (inc. codeshare)

Sunrise, Sunset & Wind in Sydney

Daylight & Sun

Solar Elevation Cycle

🌅 Sunrise

05:43

☀️ Noon

12:56

🌇 Sunset

20:08

⏱️ Daylight

14h 24m

Golden Hour
Morning05:43 - 06:20
19:31 - 20:08Evening

Wind Speed

wind

21.8 km/h

Moderate wind

Sunshine

clear-day

11.0 hrs

Direct Sun (Cloud-free)

Humidity

humidity

73%

Humid / Damp

Travel Intelligence

Exclusive flight analytics & health data for Sydney

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 Sydney

Travel Comfort Index

Real-time tourism conditions

Weather Quality

⛅ Good

78/100

Tourist Crowds

🟡 Busy

80/100

Price Level

💰💰💰 Expensive

95/100

Health & Wellbeing

Meteo-Health Forecast

70Score
Atmospheric Pressure1012.9 hPa
Volatility:Medium
Migraine RiskMedium

Moderate fluctuations. Some sensitivity possible.

Joint Pain RiskMedium

Mild discomfort possible for arthritic conditions.

Fishing IndexFair

Moderate fish activity expected.

Air Quality Forecast
29AQI
Good
PM2.5 Concentration8.5 µg/m³

Air quality is excellent. Perfect for outdoor activities.

Regional Safety Profile

Stable

Seismic Activity

Zero seismic activity detected in 30 years.

Total events (30y):0
💡 No earthquake preparedness needed. Enjoy your stay!
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Sydney on December 25 averages 24.7°C with a 28% precipitation probability. Wedding/Outdoor Event Score: 94/100."

— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology

Sydney Weather History (2010–2024)

Temperature History

Loading chart...

Hall of Fame

Records from last 10 years

Hottest
2021
28°C
Coldest
2024
15.9°C
Rainiest
2020
3.2mm

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 (December 25) in other destinations

🌍 Explore the same date in different destinations around the world

📍 Is Sydney Worth Visiting on December 25?

Planning a trip to Sydney on December 25? 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 24.7°C with a 28% historical precipitation risk.

🎉 Local Event: The date coincides with Christmas Day, which may influence local business hours and event availability.

✈️ Travel Logistics: Approximately 955 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 21.3°C (swimming pool). Wave conditions are generally fun waves with heights around 1.19m.

📊 Historical Extremes: The hottest December 25 recorded in the last 30 years saw temperatures hit 28°C in 2021, while the coldest dropped to 15.9°C in 2024.

Sydney Weather FAQ