Bondi (Sydney) sea temperature today: 18°C – beach water temperature, Bondi (Sydney), Australia
Australia · Sydney
Bondi
Sea
17.6°C63.7°F
Air
UV
Get a wetsuit
⁦13–18°C⁩

Last updated ·

Today, September 13, the sea temperature at Bondi is 17.6 °C (64 °F). That is 0.9 °C cooler than the usual 18.5 °C in September. Comfortable for swimming year-round.

Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in February (23.8°C). Coldest in August (18.2°C). Comfortable for swimming year-round.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January22.7°C23.2°C23.7°C21.4°C22.2°C22.8°C
February22.9°C23.8°C24.6°C21.4°C22.3°C23.1°C
March23.6°C23.8°C24.1°C20.9°C21.8°C22.6°C
April22.3°C22.8°C23.7°C18.3°C19.5°C20.8°C
May20.2°C21.1°C22.4°C15.8°C16.9°C18.4°C
June18.8°C19.3°C19.9°C13.0°C14.3°C16.1°C
July17.5°C18.3°C18.9°C12.9°C14.1°C15.8°C
August17.8°C18.2°C18.9°C13.5°C15.0°C16.7°C
September17.9°C18.5°C19.4°C14.9°C16.5°C18.2°C
October18.8°C19.4°C20.0°C16.5°C17.9°C19.1°C
November19.4°C20.1°C20.7°C18.1°C19.2°C20.0°C
December20.8°C21.8°C22.6°C19.7°C20.8°C21.4°C

About Bondi

Sydney's Eastern Suburbs meet the Pacific at Bondi Beach, a kilometre of golden sand anchored at its southern end by the Bondi Icebergs Club and its 50-metre ocean pool, carved into the rocks in 1929 and washed by waves at high tide. The clifftop coastal walk runs south to Tamarama, a compact cove between sandstone headlands, and Bronte, a family favourite with grassy park and the Bogey Hole rock pool. Sea temperatures reach 22–24 °C72–75 °F from December through March, and Sydney Airport is 25 minutes by Eastern Distributor.

Frequently asked questions

Today, September 13, the sea at Bondi is 17.6 °C (64 °F)64 °F (17.6 °C) – cold, most people reach for a wetsuit. The usual September average is 18.5 °C65 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Bondi is 17.6 °C64 °F.

Yes – the sea at Bondi (Sydney, Australia) stays swimmable all year. August is the coolest month, averaging 18.2 °C65 °F – refreshing, good for a short swim; the warmest is February at 23.8 °C75 °F.

In February, at 23.8 °C75 °F on average. The coolest month is August at 18.2 °C65 °F – still above the 18 °C64 °F swimming line, so there is no off-season for swimming.