Crane Beach — Sea temperature now
Iconic long North-Shore family beach.
Mild water with a light chop and a light breeze — comfortable conditions for most swimmers.
Location
Crane Beach on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
Monthly sea temperature averages
Typical year-round water temperature, based on regional climatology.
Best time to swim in Crane Beach
The sea in Crane Beach peaks in August, when the water averages around 20°C.
The main swimming season runs from August, when surface temperatures stay comfortable for extended sessions.
On average, 1 month a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Shoulder months like July and September are noticeably cooler but often quieter, with fewer crowds and steadier weather.
Outside peak season the water drops toward 8°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically February at around 3°C, when cold-water swimmers dominate the coast.
Crane Beach sea temperature history
Long-term climatology for Crane Beach shows an annual mean sea temperature of 11°C, ranging from 3°C in winter to 20°C at the summer peak.
The seasonal swing is roughly 17°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Crane Beach, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Crane Beach sea temperature: frequently asked questions
What is the warmest month to swim in Crane Beach?
August is the warmest month in Crane Beach, when the sea averages about 20°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Crane Beach?
The coldest month in Crane Beach is typically February, when the water averages around 3°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Crane Beach without a wetsuit?
The main swimming season in Crane Beach runs from August — about 1 month a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Crane Beach?
Outside peak summer the water in Crane Beach drops toward 8°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Crane Beach?
The long-term annual mean sea temperature in Crane Beach is about 11°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Crane Beach?
The live reading at the top of this page shows the current sea temperature in Crane Beach, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
Best swim months: Aug
| Month | Sea | Comfort |
|---|---|---|
| Jan | 4°C | Cold |
| Feb | 3°C | Cold |
| Mar | 4°C | Cold |
| Apr | 6°C | Cold |
| May | 10°C | Cold |
| Jun | 15°C | Bracing |
| Jul | 19°C | Pleasant |
| Aug ⭐ | 20°C | Pleasant |
| Sep | 18°C | Pleasant |
| Oct | 14°C | Bracing |
| Nov | 10°C | Cold |
| Dec | 6°C | Cold |