Port Noarlunga Temperature by Month
The average annual maximum temperature in Port Noarlunga, South Australia, Australia is 20°C (68°F), with daytime highs ranging from 15°C (59°F) in August to 25°C (77°F) in February. This page covers monthly averages, day-night differences, and how Port Noarlunga compares to cities worldwide.
Port Noarlunga Monthly Temperatures
The climate in Port Noarlunga experiences moderate temperature changes, with mild shifts between seasons. At night, temperatures range from 17°C (63°F) in February to 9°C (48°F) in August.
The chart below illustrates the average maximum day and minimum night temperatures in Port Noarlunga by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. February, the city's warmest month, gets 287 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Port Noarlunga vs Australia
The map below shows the annual temperature across Australia. You can also select individual months if you want to compare a specific time of year.
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Port Noarlunga vs World: Temperature Compared
Port Noarlunga's average annual maximum temperature is 20°C (68°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Port Noarlunga?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Port Noarlunga, August is the coolest month, with average highs of 15°C (59°F) and humidity around 55% — considered moderate. In February, the warmest month, temperatures average 25°C (77°F) with 36% humidity — conditions that feel low. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Port Noarlunga's weather — including monthly rainfall, sunshine hours, and humidity — visit our Port Noarlunga climate page.
