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Dee Why
Water Temperature in the Tasman Sea in Dee Why, Australia: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Dee Why in Australia, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Dee Why
22.9°C
TODAY
22.8°C
YESTERDAY
23.9°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Tasman Sea in Dee Why is 22.9°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.
Water Temperature Chart for Tasman Sea in Dee Why Over the Last 30 Days
The water temperature in Dee Why today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Dee Why will remain nearly unchanged in the coming days, its value will be 22.0°C.
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 across Australia to enhance accuracy.
Water temperature data for Dee Why and nearby towns and resorts 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.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Apr 12 | 23.9°C | 22.3°C | |
| Apr 13 | 23.4°C | 22.3°C | |
| Apr 14 | 22.8°C | 22.3°C | |
| Apr 15 | 23.3°C | 22.0°C | |
| Apr 16 | 22.7°C | 22.3°C | |
| Apr 17 | 23.4°C | 21.8°C | |
| Apr 18 | 22.8°C | 22.3°C | |
| Apr 19 | 23.3°C | 22.0°C | |
| Apr 20 | 22.0°C | 22.8°C | |
| Apr 21 | 22.0°C | 22.7°C | |
| Apr 22 | 21.8°C | 22.6°C | |
| Apr 23 | 21.5°C | 22.4°C | |
| Apr 24 | 21.3°C | 22.2°C | |
| Apr 25 | 22.0°C | 22.2°C | |
| Apr 26 | 21.3°C | 22.1°C | |
| Apr 27 | 21.5°C | 22.0°C |
Sea Temperature in Dee Why Throughout the Year
Throughout the year, the sea temperature in Dee Why exceeds 77°F (25°C) for 0 days, exceeds 72°F (22°C) for 96 days, and exceeds 64°F (18°C) for 339 days.
Below is the annual chart of sea temperature changes in the Tasman Sea in Dee Why.
January
| Minimum | Average | Maximum |
|---|---|---|
| 20°C | 22.5°C | 25°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 22°C | 24°C | 26°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| 21°C | 23.5°C | 26°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 19°C | 22°C | 25°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 16°C | 20°C | 24°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 15°C | 19°C | 23°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 15°C | 18°C | 21°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 15°C | 17.5°C | 20°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 16°C | 18°C | 20°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 16°C | 18.5°C | 21°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 18°C | 20°C | 22°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 19°C | 22°C | 25°C |
Monthly Water Temperature Histogram for Tasman Sea in Dee Why
You can explore detailed data on how the water temperature in Dee Why varies each month:
What Beaches Are There In and Around Dee Why?
Dee Why Beach
Dee Why Beach is a 5-stars sandy beach, is located directly in Dee Why. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Dee Why Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Long Reef Beach
Long Reef Beach is a 5-stars sandy beach, is located directly in Dee Why. There is parking. There are restrooms. There are cafés. Long Reef Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Fishermans Beach
Fishermans Beach is a 2-stars sandy beach, located in a 2 km (1 miles) radius of Dee Why. There are cafés. Fishermans Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Collaroy Rockpool
Collaroy Rockpool is a 2-stars sandy beach, located in a 2 km (1 miles) radius of Dee Why. There is parking. It is suitable for surfing.
Collaroy Beach
Collaroy Beach is a 5-stars sandy beach, located in a 2 km (1 miles) radius of Dee Why. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Collaroy Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
North Curl Curl Beach
North Curl Curl Beach is a 4-stars sandy beach, located in a 2 km (1 miles) radius of Dee Why. There is parking. North Curl Curl Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Harbord Beach
Harbord Beach is a 5-stars sandy beach, located in a 3 km (2 miles) radius of Dee Why. There is parking. There are restrooms. There are cafés. Harbord Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Curl Curl Beach
Curl Curl Beach is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Dee Why. There are cafés. Snorkeling is possible. It is suitable for surfing.
South Curl Curl Beach
South Curl Curl Beach is a 4-stars sandy beach, located in a 3 km (2 miles) radius of Dee Why. There is parking. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Narrabeen Beach
Narrabeen Beach is a 5-stars sandy beach, located in a 4 km (2 miles) radius of Dee Why. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Narrabeen Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Freshwater Beach
Freshwater Beach is a 5-stars sandy beach, located in a 4 km (2 miles) radius of Dee Why. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Queenscliff Beach
Queenscliff Beach is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Dee Why.
North Narrabeen
North Narrabeen is a 5-stars sandy beach, located in a 5 km (3 miles) radius of Dee Why. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. North Narrabeen is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. There is a shark hazard on the beach. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Manly Beach
Manly Beach is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Dee Why. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Manly Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. There is a shark hazard on the beach. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Little Manly Cove Beach
Little Manly Cove Beach is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Dee Why. There is parking. There are restrooms. Little Manly Cove Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Fairy Bower
Fairy Bower is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Dee Why. There is parking. There are restrooms. There are cafés. Fairy Bower is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Shelly Beach
Shelly Beach is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Dee Why. There is parking. There are restrooms. There are cafés. Shelly Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Turimetta Beach
Turimetta Beach is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Dee Why. There is parking. Turimetta Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
East Manly Cove Beach
East Manly Cove Beach is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Dee Why. There is parking. There are restrooms. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Store Beach
Store Beach is a 2-stars sandy beach, located in a 7 km (4 miles) radius of Dee Why. There is parking. Store Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing.
Dee Why Weather
APRIL 20
16°C / 22°C
light rainhumidity: 81% | wind: 4 km/h
APRIL 21
18°C / 19°C
light rainhumidity: 88% | wind: 6 km/h
APRIL 22
18°C / 21°C
light rainhumidity: 83% | wind: 5 km/h
APRIL 23
19°C / 21°C
scattered clouds: 25-50%humidity: 80% | wind: 3 km/h
Sea Temperature in the Tasman Sea in Dee Why: General Trends and Swimming Opportunities
The coastal region of New South Wales, Australia, experiences a temperate climate characterized by warm summers, mild winters, and rainfall distributed fairly evenly throughout the year. Summers typically offer high humidity and temperatures ranging from 20°C to 30°C, while winters see lows around 7-8°C.
Dee Why is located in Australia & Pacific Islands in the Southern Hemisphere at a latitude of -34 degrees, along the shores of the Tasman Sea. Dee Why lies within the New South Wales in Australia.
The average annual daytime air temperature in Dee Why is 23°C (73°F), with the average nighttime temperature being 14°C (57°F). The highest average daily temperature occurs in January, reaching 27°C (81°F), while the lowest is in July at 18°C (65°F). As for nighttime temperatures, the minimum average temperature of 8°C (46°F) is recorded in July, and the maximum is in January, reaching 19°C (66°F).
According to historical data, Dee Why experiences 126 rainy days per year, which accounts for 35 percent of all days in the year. On average, there are 11 rainy days each month. The wettest month is February, with 13 rainy days and 134 mm (5.3 inches) of precipitation, while the driest month is August, which typically has 7 rainy days and only 78 mm (3.1 inches) of precipitation.
The average annual water temperature in Tasman Sea in Dee Why is 20°C (68°F). In June, the water reaches its lowest point of the year at 15°C (59°F), while in February, it peaks at 26°C (79°F). The months suitable for comfortable beach vacations and swimming in the Tasman Sea are February, and March. During this period, the water temperature stays above 20°C (68°F) and can reach up to 26°C (79°F) on some days.
Geographical Location of Dee Why
Nearby Cities
Frequently Asked Questions About Dee Why and its Water Temperatures
What is the current sea temperature in Dee Why?
The water temperature today in the Tasman Sea in Dee Why is 73°F (22.9°C).
In which months is the water temperature in Dee Why comfortable for swimming?
The water temperature in the Tasman Sea in Dee Why is comfortable for swimming and beach vacations in February, and March.
What is the water temperature in Dee Why during the winter?
The water temperature in the Tasman Sea in Dee Why during the winter ranges from 19°C to 26°C (66°F to 79°F).
What is the water temperature in Dee Why during the spring?
The water temperature in the Tasman Sea in Dee Why during the spring ranges from 16°C to 26°C (61°F to 79°F).
What is the water temperature in Dee Why during the summer?
The water temperature in the Tasman Sea in Dee Why during the summer ranges from 15°C to 23°C (59°F to 73°F).
What is the water temperature in Dee Why during the fall?
The water temperature in the Tasman Sea in Dee Why during the fall ranges from 16°C to 22°C (61°F to 72°F).
Is it possible to swim in the sea in Dee Why year-round?
No, it is not possible to swim in the Tasman Sea in Dee Why year-round, the months suitable for comfortable swimming are February, and March.
What sea temperatures can I expect in Dee Why in the next month?
In May, the water temperature in the Tasman Sea in Dee Why will range between 61°F (16°C) and 75°F (24°C)