Weather by Month in Sydney

Sydney experiences distinct seasons, with warm January days averaging 26°C / 78°F and cool July nights dropping to 9°C / 48°F. Rainfall averages 62 mm / 2.4 inches per month, with March typically the wettest. December offers the longest days with around 14 hours of daylight.

Monthly Climate Comparison

Temperatures stay fairly stable month to month across the year.

Month Low Temperature High Temperature Category
January 19.4°C 25.7°C WARM
February 19.4°C 25.2°C WARM
March 18°C 23.9°C WARM
April 15°C 21.7°C MILD
May 12°C 18.9°C MILD
June 9.9°C 16.5°C MILD
July 8.8°C 16.1°C MILD
August 9.2°C 17.5°C MILD
September 11.4°C 19.9°C MILD
October 13.6°C 21.6°C MILD
November 15.8°C 22.8°C WARM
December 17.7°C 24.6°C WARM

Rain & Sunshine Patterns

Driest Months

#1 July
Best for: outdoor activities & sightseeing
#2 August
Best for: outdoor activities & sightseeing
#3 September
Best for: outdoor activities & sightseeing

Wettest Months

#1 March
Expect: possible showers, pack waterproofs
#2 February
Expect: possible showers, pack waterproofs
#3 November
Expect: possible showers, pack waterproofs

UV & Sun Protection Calendar

High UV Alert:
January, February, March, April, September, October, November, December require serious sun protection.
Jan
9
VERY-HIGH
Feb
9
VERY-HIGH
Mar
8
VERY-HIGH
Apr
6
HIGH
May
5
MODERATE
Jun
4
MODERATE
Jul
4
MODERATE
Aug
5
MODERATE
Sep
7
HIGH
Oct
8
VERY-HIGH
Nov
9
VERY-HIGH
Dec
9
VERY-HIGH
Extreme (11+)
Avoid sun during midday, use SPF 50+
Very High (8-10)
Essential sun protection required
High (6-7)
Use SPF 30+, wear hat & sunglasses
Moderate (3-5)
Sun protection recommended
Low-Moderate (1-2)
Minimal protection needed
Low (0)
No protection required

Daylight Hours

Daylight varies from 9.9 hours in June (winter) to 14.4 hours in December (summer), which is a difference of 4.5 hours.

Shortest Days

June
9.9h
Average Sunrise:07:57
Average Sunset:17:53
Plan daytime activities for midday when light is best. Early sunsets mean evening plans should account for darkness.

Longest Days

December
14.4h
Average Sunrise:05:39
Average Sunset:20:01
Extended daylight perfect for evening activities and late dining. You can fit more sightseeing into each day.

Wind & Humidity Overview

Wind Conditions

Average wind speed
Windiest months:
January ( 12 km/h) November ( 12 km/h) December ( 12 km/h)
Packing tip: Conditions are generally calm, but a light layer is always handy.

Humidity Levels

Average humidity
72%
Most humid:
February ( 75%)
Least humid:
September ( 66%)
Packing tip: Choose breathable, natural fabrics like cotton or linen for comfort in humid conditions.

Seasonal Overview

Southern Hemisphere seasons shape the weather patterns throughout the year. Here's what to expect in each season:

Summer

January, February, December
Avg High
Avg Low
Avg Rain
Warm and pleasant; perfect for travel

Autumn

March, April, May
Avg High
Avg Low
Avg Rain
Mild conditions; transitional weather

Winter

June, July, August
Avg High
Avg Low
Avg Rain
Mild winter; light layers recommended

Spring

September, October, November
Avg High
Avg Low
Avg Rain
Pleasant warming; ideal for outdoor activities

Risk Ranking Table

Ranking Goal #1#2#3#4
Lowest rain risk
Jul 2 risk days
Aug 2 risk days
Sep 2 risk days
Jan 3 risk days
Lowest heatwave risk
Mar 0 risk days
Apr 0 risk days
May 0 risk days
Jun 0 risk days
Lowest cold risk
Jan 0 risk days
Feb 0 risk days
Mar 0 risk days
Apr 0 risk days
Lowest wind disruption risk
Apr 49 km/h
May 49 km/h
Jun 52 km/h
Mar 52 km/h
Most comfortable evenings
Dec 88 / 100
Mar 84 / 100
Jan 76 / 100
Apr 76 / 100
Best outdoor reliability
Jul 91 / 100
Aug 85 / 100
Apr 85 / 100
May 84 / 100

Monthly Details

Click any month for detailed weather information and packing advice.

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Frequently Asked Questions

What is the best month to visit Sydney?

The best months to visit Sydney depend on your preferences. For warm weather, January is typically the warmest month. For dry conditions, July, August, September tend to have the least rainfall. Consider your priorities, and whether you prefer warmer temperatures, drier weather, or longer daylight hours.

When is Sydney warmest?

January is typically the warmest month in Sydney, with average high temperatures reaching around 26°C (79°F). This is peak summer weather, ideal for outdoor activities and sightseeing.

When is Sydney coldest?

July is usually the coldest month, with average low temperatures dropping to around 9°C (48°F). Pack warm layers if visiting during this time, especially for evening activities.

When does Sydney get the most rain?

March typically sees the most rainfall in Sydney, averaging around 90mm (3.5 inches). It's wise to pack waterproof layers and have some indoor backup plans if you're visiting during this month.

What is the driest month in Sydney?

July is typically the driest month, with average rainfall of just 41mm (1.6 inches). This makes it an excellent time for outdoor exploration and activities with minimal risk of rain disruption.

How much does the temperature vary in Sydney throughout the year?

Temperatures in Sydney range from average lows of 14°C (58°F) to highs of 21°C (70°F). This variation means you'll want to pack differently depending on when you visit, as layers are key for adapting to the seasonal changes.

Do I need sun protection when visiting Sydney?

Yes, sun protection is important in Sydney. UV levels can reach 9 during peak months, which is considered very high. Pack sunscreen (SPF 30+), sunglasses, and a hat, especially if you'll be outdoors for extended periods.

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