Coral Sea Water Temperature Today & Regional Overview
We find every place where you can swim and show you the water temperature there today and throughout the year.
Current Water Temperature
The water temperature in the Coral Sea today ranges from 69°F (Burleigh Heads, Australia) to 85°F (Luganville, Vanuatu).
As of today, the minimum water temperature in the Coral Sea ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Sea Temperature Trends
Over the past month, the water temperature in the Coral Sea has remained almost unchanged. In general, the sea water temperature remains within the statistical range for this time of year.
Water Temperature and Swimming Conditions Throughout the Year
| Month | Min | Max |
|---|---|---|
| January | 66°F | 90°F |
| February | 66°F | 90°F |
| March | 68°F | 90°F |
| April | 66°F | 88°F |
| May | 66°F | 88°F |
| June | 63°F | 86°F |
| July | 63°F | 86°F |
| August | 63°F | 86°F |
| September | 61°F | 84°F |
| October | 61°F | 88°F |
| November | 63°F | 90°F |
| December | 64°F | 90°F |
The Coral Sea, a tropical to subtropical body of water off northeastern Australia and around nearby islands, experiences broadly warm surface temperatures year-round. Seasonal averages typically range from about 21–25 °C in winter (June–August) to around 26–30 °C in summer (December–February). Spring (September–November) temperatures commonly sit between 23–28 °C and autumn (March–May) between 24–29 °C. These figures vary with latitude and local conditions: northern parts of the Coral Sea and more sheltered lagoon waters tend to be at the warmer end of each range, while southern or more exposed offshore areas can be several degrees cooler. Short-term variations occur with weather patterns, currents and events such as El Niño, but overall the sea remains relatively warm compared with temperate oceans.
Swimming Conditions
Swimming and other water activities are widely practiced in the Coral Sea because the water temperatures are generally comfortable for prolonged exposure. Popular activities include swimming, snorkeling and diving around reefs and islands where warm surface temperatures support vibrant marine life. However, swimming is subject to safety and conservation considerations: strong currents, sudden weather changes and marine hazards such as stinging jellyfish in certain seasons (notably in warmer months in northern areas) can restrict safe access, and many reef areas lie within protected marine parks with rules to reduce impact on corals. On populated coasts there are lifeguarded beaches and designated swimming zones, while remote reef and island sites require greater caution, preparation and respect for local advice and seasonal warnings.