Compare the Climate and Weather in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation System

This page lets you compare and contrast the weather and climate in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation System year round.

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Average High and Low Temperature

Compare the Average High and Low Temperature in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F591475281970-215NowNowHart Island Meteorological Aeronautical Presentation SystemHart Island Meteorological Aeronautical Presentation SystemSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Sydney 30°F30°F35°F45°F55°F65°F73°F73°F66°F55°F45°F36°F
Sydney/J.A. Douglas McCurdy Airport 30°F30°F35°F44°F54°F64°F72°F72°F65°F54°F45°F36°F
Port Hawkesbury Airport 30°F31°F37°F46°F56°F66°F73°F73°F66°F55°F45°F36°F
Hart Island Meteorological Aeronautical Presentation System 32°F31°F35°F42°F51°F59°F67°F69°F64°F55°F46°F38°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Sydney 17°F16°F22°F31°F40°F48°F57°F57°F51°F42°F34°F24°F
Sydney/J.A. Douglas McCurdy Airport 17°F16°F22°F31°F39°F48°F57°F58°F51°F42°F34°F24°F
Port Hawkesbury Airport 17°F16°F23°F32°F40°F49°F57°F58°F51°F42°F34°F24°F
Hart Island Meteorological Aeronautical Presentation System 21°F20°F26°F33°F40°F48°F57°F60°F55°F47°F37°F28°F

Sydney

Average Hourly Temperature in SydneyJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoldcoolcomfortablefreezing

Sydney/J.A. Douglas McCurdy Airport

Average Hourly Temperature in Sydney/J.A. Douglas McCurdy AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoldcoolcomfortablefreezing

Port Hawkesbury Airport

Average Hourly Temperature in Port Hawkesbury AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoldcoolcomfortablefreezing

Hart Island Meteorological Aeronautical Presentation System

Average Hourly Temperature in Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoldcoolcomfortablefreezing
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies

Compare the Chance of Clearer Skies in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%58333434NowNowSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Sydney 33%36%40%39%39%47%51%54%56%53%44%38%
Sydney/J.A. Douglas McCurdy Airport 34%37%41%39%39%47%51%54%56%54%45%39%
Port Hawkesbury Airport 35%35%38%38%39%47%52%55%57%54%45%40%
Hart Island Meteorological Aeronautical Presentation System 38%38%39%37%36%45%51%54%57%54%47%43%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%3727NowNowSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Sydney 9.6d8.3d8.9d9.2d9.2d9.2d8.8d9.0d9.0d9.6d10.6d10.4d
Sydney/J.A. Douglas McCurdy Airport 9.6d8.3d8.8d9.1d9.1d9.2d8.8d9.1d9.0d9.6d10.5d10.4d
Port Hawkesbury Airport 8.6d7.3d7.8d8.4d8.7d8.8d8.3d8.3d8.3d9.2d9.8d9.7d
Hart Island Meteorological Aeronautical Presentation System 10.0d8.5d8.8d9.6d9.5d9.4d8.8d8.6d8.8d10.2d11.2d11.1d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 in4.0 in4.0 in3.71.43.21.1NowNowHart Island Meteorological Aeronautical Presentation SystemHart Island Meteorological Aeronautical Presentation SystemSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Sydney 1.7″1.4″1.6″2.5″2.5″2.5″2.4″2.7″3.1″3.5″3.6″2.7″
Sydney/J.A. Douglas McCurdy Airport 1.7″1.4″1.5″2.4″2.4″2.5″2.4″2.7″3.0″3.5″3.6″2.7″
Port Hawkesbury Airport 1.3″1.1″1.3″2.0″2.0″2.2″2.1″2.3″2.5″3.0″3.1″2.3″
Hart Island Meteorological Aeronautical Presentation System 2.0″1.5″1.6″2.4″2.3″2.5″2.3″2.5″2.7″3.5″3.7″3.1″

Average Monthly Snowfall

Compare the Average Monthly Snowfall in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 in14.910.511.5NowNowHart Island Meteorological Aeronautical Presentation SystemHart Island Meteorological Aeronautical Presentation SystemSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
SnowfallJanFebMarAprMayJunJulAugSepOctNovDec
Sydney 13.2″14.8″10.7″3.1″0.1″0.0″0.0″0.0″0.0″0.0″1.6″7.6″
Sydney/J.A. Douglas McCurdy Airport 13.4″15.4″11.7″4.0″0.3″0.0″0.0″0.0″0.0″0.0″1.5″7.6″
Port Hawkesbury Airport 10.3″10.0″6.4″1.6″0.0″0.0″0.0″0.0″0.0″0.0″1.5″6.8″
Hart Island Meteorological Aeronautical Presentation System 9.2″11.4″7.9″2.2″0.1″0.0″0.0″0.0″0.0″0.0″0.6″4.1″

Hours of Daylight

Compare the Hours of Daylight in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr15.88.6NowNowHart Island Meteorological Aeronautical Presentation SystemHart Island Meteorological Aeronautical Presentation SystemSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Sydney 9.1h10.4h12.0h13.6h15.0h15.7h15.3h14.1h12.5h10.9h9.4h8.7h
Sydney/J.A. Douglas McCurdy Airport 9.1h10.4h12.0h13.6h15.0h15.7h15.3h14.1h12.5h10.9h9.4h8.7h
Port Hawkesbury Airport 9.2h10.4h12.0h13.6h15.0h15.6h15.3h14.0h12.5h10.9h9.5h8.8h
Hart Island Meteorological Aeronautical Presentation System 9.2h10.4h12.0h13.6h14.9h15.6h15.2h14.0h12.5h10.9h9.5h8.8h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%12NowNow
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Sydney 0.0d0.0d0.0d0.0d0.0d0.4d2.6d3.0d1.1d0.1d0.0d0.0d
Sydney/J.A. Douglas McCurdy Airport 0.0d0.0d0.0d0.0d0.0d0.3d2.6d3.1d1.0d0.1d0.0d0.0d
Port Hawkesbury Airport 0.0d0.0d0.0d0.0d0.0d0.6d2.8d3.3d1.5d0.2d0.0d0.0d
Hart Island Meteorological Aeronautical Presentation System 0.0d0.0d0.0d0.0d0.0d0.2d1.7d3.3d1.6d0.2d0.0d0.0d

Average Wind Speed

Compare the Average Wind Speed in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mph22 mph22 mph19.312.520.313.38.416.910.7NowNowHart Island Meteorological Aeronautical Presentation SystemHart Island Meteorological Aeronautical Presentation SystemSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Sydney 18.918.117.415.813.913.112.913.014.716.417.718.7
Sydney/J.A. Douglas McCurdy Airport 19.919.018.116.414.313.613.313.515.417.218.619.7
Port Hawkesbury Airport 13.112.512.010.79.48.88.68.810.211.512.313.0
Hart Island Meteorological Aeronautical Presentation System 16.716.115.213.411.611.010.811.212.914.615.716.5

Average Water Temperature

Compare the Average Water Temperature in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F6431NowNowHart Island Meteorological Aeronautical Presentation SystemHart Island Meteorological Aeronautical Presentation SystemSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Sydney 34°F32°F31°F34°F39°F48°F59°F64°F60°F53°F45°F39°F
Sydney/J.A. Douglas McCurdy Airport 34°F32°F32°F33°F39°F48°F58°F64°F60°F53°F45°F39°F
Port Hawkesbury Airport 34°F31°F31°F34°F40°F49°F59°F64°F62°F55°F46°F39°F
Hart Island Meteorological Aeronautical Presentation System 35°F32°F32°F34°F40°F48°F58°F64°F61°F54°F46°F40°F

Tourism Score

Compare the Tourism Score in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.6NowNowSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score

Compare the Beach/Pool Score in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec002244668810103.72.3NowNowSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season

Compare the Growing Season in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowHart Island Meteorological Aeronautical Presentation SystemHart Island Meteorological Aeronautical Presentation SystemSydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days

Compare the Growing Degree Days in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°FNowNowHart Island Meteorological Aeronautical Presentation SystemHart Island Meteorological Aeronautical Presentation SystemSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy Airport
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy

Compare the Average Daily Incident Shortwave Solar Energy in Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation SystemJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh6.61.0NowNowHart Island Meteorological Aeronautical Presentation SystemHart Island Meteorological Aeronautical Presentation SystemSydneySydneySydney/J.A. Douglas McCurdy AirportSydney/J.A. Douglas McCurdy AirportPort Hawkesbury AirportPort Hawkesbury Airport
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Sydney 1.32.23.54.65.66.46.35.54.32.81.61.1
Sydney/J.A. Douglas McCurdy Airport 1.32.23.54.65.66.46.35.54.32.81.61.1
Port Hawkesbury Airport 1.32.23.44.65.66.46.35.64.42.81.61.1
Hart Island Meteorological Aeronautical Presentation System 1.42.23.44.55.56.46.35.64.42.91.71.2

This report illustrates the typical weather for Sydney, Sydney/J.A. Douglas McCurdy Airport, Port Hawkesbury Airport, and Hart Island Meteorological Aeronautical Presentation System year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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