North Coast – Water Temperature Overview
This page provides information on North Coast Region locations where sea water temperature data is available, including current conditions, monthly ranges and historical records.
Current Water Temperature
The current water temperature in the North Coast today is within the range of 23-26°C. Thus, the average water temperature is about 25°C. Water in this range is comfortably warm and widely considered ideal for swimming. Most people can stay in the water for a long time without feeling cold. It works well for families, recreational swimming, and active water sports such as swimming, surfing, and paddleboarding.
It’s important to note that these swimming tips and recommendations apply only in settled weather. When air temperatures drop below 20°C — and sometimes even below 25°C — swimming can feel uncomfortable, even when water temperatures are relatively high.
Sea Temperature Trends
Over the past month, the sea water temperature has remained largely unchanged. Overall, the sea water temperature is within the range expected based on historical data for this month.
Water Temperature and Swimming Conditions by Month
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 23°C | 26°C | 28°C |
| February | 24°C | 27°C | 29°C |
| March | 22°C | 26°C | 29°C |
| April | 22°C | 25°C | 28°C |
| May | 19°C | 23°C | 26°C |
| June | 18°C | 22°C | 25°C |
| July | 19°C | 21°C | 23°C |
| August | 18°C | 21°C | 23°C |
| September | 18°C | 21°C | 23°C |
| October | 19°C | 23°C | 26°C |
| November | 20°C | 23°C | 26°C |
| December | 21°C | 24°C | 27°C |
The North Coast of New South Wales stretches from the subtropical north down toward the mid-north coast, with sea water temperatures shaped by the Tasman Sea and the East Australian Current. This influence keeps the water noticeably warmer than along southern NSW for much of the year. In summer, sea water temperatures typically range from around 22°C to 26°C, creating comfortable conditions for swimming across most beaches. During autumn, temperatures often remain mild at about 20–24°C before gradually cooling in winter. Winter sea water temperatures usually sit between 17°C and 20°C, which can feel cool at first but are still suitable for swimming, particularly on sunny, calm days. Spring brings a steady warming trend, with water temperatures rising back into the low 20s°C.
Swimming Conditions
Swimming is allowed and widely enjoyed along the North Coast, which is known for its long sandy beaches, headlands, and generally good water quality. Summer and early autumn are the most popular times for swimming, when warmer water allows for longer, more relaxed sessions in the sea. In winter, swimming remains common among locals, surfers, and active swimmers, although some people prefer shorter swims or wear wetsuits for added comfort. Many beaches are patrolled during peak periods, improving safety for casual swimmers. Overall, the North Coast offers reliable swimming opportunities for much of the year, supported by moderate sea temperatures, clean coastal waters, and a strong outdoor beach culture.