Cronulla — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Cronulla (Australia). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Cronulla help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Cronulla in the Tasman Sea today is 20°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming.
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.
Water Temperature Chart Over the Last 30 Days
Water temperature in Cronulla today is lower than both a week ago and a month ago. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Cronulla will be 19.7°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 5 | 20.5°C | 20.0°C | |
| JUN 6 | 20.4°C | 19.5°C | |
| JUN 7 | 20.2°C | 20.0°C | |
| JUN 8 | 20.1°C | 19.3°C | |
| JUN 9 | 20.0°C | 19.5°C | |
| JUN 10 | 19.7°C | 19.8°C | |
| JUN 11 | 19.6°C | 19.5°C | |
| JUN 12 | 19.6°C | 19.8°C | |
| JUN 13 | 19.6°C | 19.8°C | 19.6°C |
| JUN 14 | 19.5°C | 19.6°C | |
| JUN 15 | 19.8°C | 19.6°C | |
| JUN 16 | 19.8°C | 19.7°C | |
| JUN 17 | 19.8°C | 19.7°C | |
| JUN 18 | 19.5°C | 19.7°C | |
| JUN 19 | 19.8°C | 19.7°C | |
| JUN 20 | 19.5°C | 19.7°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Cronulla sits on the Tasman Sea coast of southern Sydney and experiences temperate ocean conditions that vary through the year. Typical sea temperatures in the area move from around 20–24°C in summer (December to February), cool to roughly 18–22°C in autumn (March to May), drop further to about 16–19°C during winter (June to August), and climb back to near 17–21°C in spring (September to November). Local variations occur with tidal movement, coastal currents and wind-driven upwellings, so water can feel cooler on windy days or after southerly swells. Shallow bays and rock pools warm more quickly on sunny days than exposed ocean beaches, while the open surf tends to be a degree or two cooler.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 20°C | 23°C | 25°C |
| February | 22°C | 24°C | 26°C |
| March | 20°C | 23°C | 26°C |
| April | 19°C | 23°C | 25°C |
| May | 16°C | 21°C | 24°C |
| June | 15°C | 20°C | 23°C |
| July | 15°C | 19°C | 21°C |
| August | 15°C | 19°C | 20°C |
| September | 16°C | 18°C | 20°C |
| October | 16°C | 19°C | 21°C |
| November | 18°C | 20°C | 22°C |
| December | 18°C | 21°C | 25°C |
* Click on a month to view detailed water temperature data.
Cronulla: Weather Forecast
June 14
June 15
June 16
Location, Beaches & Local Information
Nearby Beaches & Facilities
Wanda Beach
Elouera Beach
North Cronulla
Gunnamatta Park Beach
Sutherland Shire Beach
Blackwoods Beach
South Cronulla Beach
Cronulla Beach
Greenhills Beach
Swimming Conditions
These temperatures make Cronulla attractive for a wide range of beach holiday activities year-round, though visitors often choose summer and late spring for the warmest swimming conditions. The area offers patrolled sandy beaches, sheltered coves and ocean baths suitable for families and casual swimmers, plus surf breaks and rock shelves for surfers and snorkellers when conditions allow. Lifeguards and flags operate on main beaches in the warmer months, and promenades, cafes and nearby reserves make it easy to combine swimming with relaxed seaside days. Even in winter many people swim or use wetsuits for longer sessions, while calmer days and sunnier spells are ideal for beachside relaxation and water-based recreation.