Temperature:

Your Favorite Locations:

Your favorites list is empty.

Tomahawk – current water temperature and swimming conditions

This page shows the current water temperature at Tomahawk in Tasmania. You can view recent sea temperature trends on a 30-day chart, check typical monthly water temperature ranges, and compare today’s reading with historical averages for this date. The page also includes a 7-day water temperature forecast, nearby beaches with similar conditions, local weather information, and a summary of swimming conditions to help you assess how suitable the water is for swimming.

Tomahawk
Tomahawk © By WoonganILB, CC0

Current Sea Water Temperature

12.8°C
Today
12.8°C
Yesterday
12.8°C
A Week Ago

The average sea water temperature today in Tomahawk is about 13°C.

Water Temperature in Tomahawk: Daily Trends, Historical Records, and Forecast

❌ Water at this temperature feels cold and is generally suitable only for brief immersion. Swimming without a wetsuit can quickly become uncomfortable, and exposure time is usually short. These conditions are mainly suitable for experienced swimmers or those using proper thermal gear.

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.

Water Temperature Over the Last 30 Days

From July 23 to August 22

Over the last 30 days, water temperatures in Tomahawk have trended upward, with conditions remaining relatively stable over the past week.

According to our forecast, Sea water temperature in Tomahawk will be 12.6°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
Aug 1412.6°C12.8°C
Aug 1512.8°C13.0°C
Aug 1612.8°C12.8°C
Aug 1712.8°C13.0°C
Aug 1813.0°C13.0°C
Aug 1913.0°C12.8°C
Aug 2012.8°C12.8°C
Aug 2112.8°C12.8°C
Aug 2212.8°C12.8°C12.8°C
Aug 2312.5°C12.8°C
Aug 2412.8°C12.7°C
Aug 2512.8°C12.7°C
Aug 2612.8°C12.7°C
Aug 2712.8°C12.7°C
Aug 2812.5°C12.6°C
Aug 2912.5°C12.6°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Actual near-shore water temperatures in Tomahawk can vary by several degrees from the values shown, particularly after heavy rain, strong southerlies, or prolonged windy conditions. Certain wind patterns can trigger upwelling, where cooler, deeper water is pushed to the surface and replaces the warmer top layer, leading to noticeable short-term changes in water temperature.

Our water temperature forecast is produced using a proprietary mathematical model that combines real-time measurements with long-term historical patterns, local weather conditions, wind strength and direction, and air temperature specific to each coastal region. To improve accuracy, we cross-check data from nearby locations and use multiple sources, including offshore buoys, satellite-based sea surface maps, and observations provided by local authorities.

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C
25°C
20°C
15°C
10°c
5°C
0°C

Annual Water Temperature Trend

Tomahawk is a small coastal settlement on Tasmania’s north-east edge, where the Bass Strait meets long, open beaches and rugged headlands. The sea here stays cool throughout the year, with temperatures following a clear seasonal cycle. In summer, from December to February, the water usually reaches around 15–17 °C, which feels brisk but refreshing on warm days. Autumn sees a gradual drop to about 13–15 °C, while winter is coldest, typically around 11–12 °C. In spring, temperatures slowly rise again, generally sitting between 12–14 °C as weather patterns become more settled.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January15°C18°C21°C
February16°C18°C21°C
March16°C19°C21°C
April15°C18°C20°C
May14°C16°C19°C
June12°C15°C17°C
July11°C14°C16°C
August11°C13°C15°C
September11°C13°C15°C
October11°C13°C16°C
November13°C14°C17°C
December14°C16°C19°C

* Click on a month to view detailed water temperature data.

Tomahawk: Weather Forecast

August 23

10°C / 13°C
light rain
humidity: 76% | wind: 14 kmh

August 24

10°C / 13°C
overcast clouds: 85-100%
humidity: 91% | wind: 7 kmh

August 25

9°C / 12°C
light rain
humidity: 86% | wind: 18 kmh

Local Water Conditions and Nearby Spots

Nearby Beaches and Water Temperatures

Tomahawk Beach

⭐ 3.6/5
12.7°C

Ransons Beach

⭐ 3.5/5
11.7°C

Murdochs Beach

⭐ 3.6/5
12.5°C

Swimming Conditions

Swimming in Tomahawk is allowed, but it suits experienced and confident swimmers more than casual bathers. The beaches are exposed to Bass Strait swells, which can bring strong waves, shifting sandbanks, and occasional rips, especially after windy conditions. On calm summer days, short swims and cooling dips are common, usually close to shore, but longer swims are less popular due to the cold water. Wetsuits are widely used outside peak summer to improve comfort and safety. Overall, Tomahawk offers refreshing cold-water swimming in a wild coastal setting, with enjoyment closely tied to sea conditions, weather, and local awareness.

🏄‍♀️ Nearby Surf Spots and Water Temperatures

Binalong Beach

⭐ 1/5
13.5°C

Perons Beach

⭐ 1/5
14.6°C

Beer Barrel Beach

⭐ 1/5
14.4°C

Tam O'Shanter

⭐ 3/5
13.7°C

Flinders Island - Trousers Point

⭐ 2/5
12.5°C

Dark Hollow

⭐ 1/5
14.4°C

Scamander Rivermouth

⭐ 1/5
13.4°C

East Beach

⭐ 1/5
13.5°C

Cattle Grid

⭐ 1/5
14.4°C

Frequently Asked Questions

What is the sea water temperature in Tomahawk today?
Sea water temperature in Tomahawk in the Bass Strait today is 13°C.
What is the water temperature in Tomahawk during summer?
During summer, the water temperature in Tomahawk typically ranges from 14°C to 21°C.
What is the water temperature in Tomahawk during autumn?
During autumn, the water temperature in Tomahawk typically ranges from 14°C to 21°C.
What is the water temperature in Tomahawk during spring?
During spring, the sea water temperature in Tomahawk typically ranges from 11°C to 17°C.
What is the water temperature in Tomahawk during winter?
During winter, the sea water temperature in Tomahawk typically ranges from 11°C to 17°C.
Which beaches are popular in the Tomahawk area?
Some of the most popular beaches in the Tomahawk area include: Tomahawk Beach, Ransons Beach, Murdochs Beach.
What are the nearest surf spots to Tomahawk?
Some of the closest surf spots near Tomahawk include Binalong Beach, Perons Beach, Beer Barrel Beach.