Long Jetty Temperature by Month

Long Jetty, Australia has an average annual maximum temperature of 22°C (72°F), with moderate seasonal shifts ranging from 18°C (64°F) in July to 26°C (79°F) in January. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

The moderate changes in the climate in Long Jetty ensure gradual weather shifts through each season. At night, temperatures drop to between 20°C (68°F) and 11°C (52°F) depending on the time of year.

The chart below illustrates the average maximum day and minimum night temperatures in Long Jetty by month:

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. January, the warmest month, averages 233 hours of sunshine.

The chart below shows the average temperature throughout the year:

Long Jetty's average annual maximum temperature is 22°C (72°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation, summers are often cool and foggy, winters mild.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 Long Jetty, July is the coolest month, with average highs of 18°C (64°F) and humidity around 52%, considered moderate. In January, the warmest month, temperatures average 26°C (79°F) with 61% humidity, conditions that feel high. 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.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Long Jetty's weather, including monthly rainfall, sunshine hours, and humidity, visit our Long Jetty climate page.