Sydney Weather

2025 (Full Year)

Average Temperature
22.3 °C
High
/
14.3 °C
Low
1262.8mm
Rain Volume
39.1°C
Peak Temp
3.7°C
Low Temp
365
Days Count

Seasonal Breakdown

Average temperatures and rainfall by season

Spring

92 days
22.5°C
Avg High
/
15.9°C
Avg Low
Rainfall
408.7mm

Summer

92 days
16.4°C
Avg High
/
8.6°C
Avg Low
Rainfall
373.6mm

Autumn

91 days
24.5°C
Avg High
/
14.4°C
Avg Low
Rainfall
157.9mm

Winter

90 days
25.8°C
Avg High
/
18.5°C
Avg Low
Rainfall
322.6mm

Seasons based on meteorological calendar: Spring (Mar-May), Summer (Jun-Aug), Autumn (Sep-Nov), Winter (Dec-Feb)

✈️ Travel Recommendations

Best visiting months: September, April, May

Based on optimal temperature and rainfall balance from historical weather patterns

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

39.1°C
Friday, December 19
avg daily high: 22.3°C

Coolest Day

11.5°C
Wednesday, July 30
avg daily high: 22.3°C

Period Low

3.7°C
Thursday, June 19
avg night low: 14.3°C
Progress 0%
0 / 0 years
Analyzing Historical Data

Analyzing 15 years of historical data...

Analysis Period

Years: 15
Location: Sydney
Period: 2025-01-01 to 2025-12-31

Weather Insights

Key findings from analysis for selected period

Variable with Hot Extremes

Worth noting

Average of 22.3°C but 7 very hot days (39.1°C peak).

High Rainfall Climate

Worth noting

Sydney has a high rainfall climate with 1263mm annual precipitation (3.5mm daily average). Wettest months: August (233mm), May (195mm), January (188mm).

📅

Seasonal Weather Patterns

Info
Rainfall Patterns:
Wettest: August (233mm), May (195mm)
Driest: June (16mm), October (32mm)

Temperature Patterns (Monthly Averages):
Hottest months: December (26.5°C), February (25.9°C)
Coolest months: July (16.1°C), June (16.1°C)

Travel Recommendations:
Best visiting months: September, April, May (optimal temperature and rainfall balance).
⚠️

15 Exceptional Weather Events (showing top 3)

Info

The 3 most extreme of 15 notable days in this period:

Dec 19 Heat

Hottest day: 39.1°C — the average daily high in this period was 22.3°C

Dec 6 Heat

Very hot day: 38.8°C — the average daily high in this period was 22.3°C

Oct 22 Heat

Very hot day: 38.2°C — the average daily high in this period was 22.3°C

8 Extreme Heat Index Days

Worth noting

8 days with dangerous heat index levels (47.5°C average). Temperature 35.3°C combined with 63% humidity creates hazardous conditions.

High Humidity Levels

Info

Average humidity of 72% indicates persistently moist air conditions. Heat sensation amplified during warm periods (22.3°C average temperature). Humidity varied significantly (26%-92% range).

📊

Highly Variable Humidity

Info

Large humidity swings (26%-92%) for a year. Conditions ranged from dry to very humid.

Related Weather Data

Quick Actions

WeatherWhen

Explore historical weather data from around the world. Compare cities, analyze climate trends, and discover weather patterns across different time periods.

🌍
Global Weather Data

Features

  • Historical weather data
  • City comparisons
  • Interactive charts
  • Climate analysis
  • Weather trends

Data Source

Weather data provided by Open-Meteo, offering reliable historical weather information from meteorological stations worldwide.

Data accuracy and availability may vary by location and time period.

© 2025 WeatherWhen. Historical weather data analysis tool.

Home Browse Cities Powered by Open-Meteo