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Strahan – current water temperature and swimming conditions

This page shows the current water temperature at Strahan 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.

Strahan
Strahan © By M. Murphy, Public Domain

Current Sea Water Temperature

15.0°C
Today
14.9°C
Yesterday
15.0°C
A Week Ago

The average sea water temperature today in Strahan is about 15°C.

Water Temperature in Strahan: 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 April 6 to May 6

Water temperatures in Strahanfell over the past month, but have levelled out during the last week.

According to our forecast, Sea water temperature in Strahan will be 14.3°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
Apr 2815.3°C16.8°C
Apr 2915.0°C16.8°C
Apr 3015.0°C15.3°C
May 115.0°C15.3°C
May 214.8°C15.0°C
May 314.9°C15.3°C
May 414.9°C14.5°C
May 514.9°C14.5°C
May 615.0°C14.5°C15.0°C
May 714.3°C14.9°C
May 814.7°C14.8°C
May 914.0°C14.7°C
May 1014.3°C14.6°C
May 1114.3°C14.5°C
May 1214.0°C14.4°C
May 1314.3°C14.3°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 Strahan 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

Strahan sits on Tasmania’s rugged west coast beside the sheltered waters of Macquarie Harbour, with the Indian Ocean just beyond the harbour entrance. Water temperatures here are cold throughout the year, though the harbour tends to be slightly milder than the open coast. In summer, from December to February, water temperatures usually range around 14–16 °C, occasionally feeling a touch warmer inside the harbour on calm, sunny days. Autumn brings a gradual cooling to about 13–15 °C, while winter is the coldest period, commonly around 10–12 °C. Spring sees a slow warm-up, with temperatures generally between 11–13 °C as daylight increases.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January14°C17°C19°C
February15°C18°C20°C
March15°C17°C19°C
April14°C16°C18°C
May11°C14°C17°C
June11°C14°C15°C
July10°C13°C14°C
August10°C12°C14°C
September10°C12°C14°C
October10°C12°C15°C
November12°C14°C16°C
December13°C15°C18°C

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

Strahan: Weather Forecast

May 7

9°C / 12°C
light rain
humidity: 76% | wind: 32 kmh

May 8

11°C / 12°C
light rain
humidity: 81% | wind: 18 kmh

May 9

12°C / 13°C
overcast clouds: 85-100%
humidity: 86% | wind: 7 kmh

May 10

10°C / 14°C
few clouds: 11-25%
humidity: 85% | wind: 7 kmh

Local Water Conditions and Nearby Spots

Nearby Beaches and Water Temperatures

West Strahan Beach

⭐ 3.6/5
15.7°C

Fraser Flats

⭐ 3.6/5
13.9°C

Macquarie Heads

⭐ 2.9/5
14.9°C

Swimming Conditions

Swimming in Strahan is allowed, but it’s mostly limited to sheltered harbour areas rather than the exposed ocean coastline. Macquarie Harbour offers calmer water with little wave action, making short swims possible during settled summer weather. Even then, the water remains cold, so most swims are brief, and wetsuits are popular outside the warmest weeks. Ocean swimming near the harbour entrance is far more challenging due to strong swells, currents, and rapid weather changes, and is generally avoided. Overall, Strahan provides modest cold-water swimming opportunities, best enjoyed in the harbour during calm summer conditions by swimmers comfortable with cooler temperatures.

🏄‍♀️ Nearby Surf Spots and Water Temperatures

Trial Harbour

⭐ 4/5
15.0°C

Frequently Asked Questions

What is the sea water temperature in Strahan today?
Sea water temperature in Strahan in the Indian Ocean today is 15°C.
What is the water temperature in Strahan during summer?
During summer, the water temperature in Strahan typically ranges from 13°C to 20°C.
What is the water temperature in Strahan during autumn?
During autumn, the water temperature in Strahan typically ranges from 11°C to 19°C.
What is the water temperature in Strahan during spring?
During spring, the sea water temperature in Strahan typically ranges from 10°C to 16°C.
What is the water temperature in Strahan during winter?
During winter, the sea water temperature in Strahan typically ranges from 10°C to 15°C.
Which beaches are popular in the Strahan area?
Some of the most popular beaches in the Strahan area include: West Strahan Beach, Fraser Flats, Macquarie Heads.
What are the nearest surf spots to Strahan?
Some of the closest surf spots near Strahan include Trial Harbour.