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Armstrong Beach – current water temperature and swimming conditions

This page shows the current water temperature at Armstrong Beach in Queensland. 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.

Armstrong Beach
Armstrong Beach © Michelle Parrant

Current Sea Water Temperature

24.1°C
Today
24.1°C
Yesterday
24.3°C
A Week Ago

The average sea water temperature today in Armstrong Beach is about 24°C.

Water Temperature in Armstrong Beach: Daily Trends, Historical Records, and Forecast

✅ 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.

Water Temperature Over the Last 30 Days

From April 6 to May 6

Water temperatures in Armstrong Beach have been gradually cooling over the past month, with a further drop recorded during the last week.

According to our forecast, Sea water temperature in Armstrong Beach will be 25.4°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 2824.8°C27.5°C
Apr 2924.7°C27.5°C
Apr 3024.3°C26.5°C
May 124.1°C25.8°C
May 224.1°C26.3°C
May 324.0°C26.0°C
May 424.0°C25.8°C
May 524.1°C25.8°C
May 624.1°C25.8°C24.1°C
May 726.0°C24.3°C
May 826.0°C24.5°C
May 926.0°C24.7°C
May 1026.0°C24.9°C
May 1126.0°C25.1°C
May 1226.0°C25.2°C
May 1325.7°C25.4°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 Armstrong Beach 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

Armstrong Beach sits on a quiet stretch of Queensland’s North Coast, looking out over the Coral Sea, and water temperatures here remain warm for most of the year. During summer, from around December to March, the sea usually holds between 27 and 29 °C, giving the water a very tropical feel that suits longer swims. In winter, typically June to August, temperatures ease back to about 22–24 °C, which is still mild and comfortable on clear, sunny days. Spring and autumn often deliver the best balance, with water temperatures commonly in the 24–26 °C range and more settled coastal weather.

Monthly Water Temperature Range (Min, Max & Average)

Month Min Avg Max
January27°C29°C31°C
February27°C29°C31°C
March26°C29°C31°C
April25°C28°C30°C
May22°C26°C28°C
June20°C24°C26°C
July20°C23°C24°C
August20°C23°C24°C
September20°C24°C27°C
October22°C26°C29°C
November24°C27°C29°C
December26°C28°C30°C

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

Armstrong Beach: Weather Forecast

May 7

22°C / 24°C
clear sky
humidity: 77% | wind: 25 kmh

May 8

21°C / 23°C
clear sky
humidity: 61% | wind: 36 kmh

May 9

21°C / 23°C
broken clouds: 51-84%
humidity: 71% | wind: 32 kmh

May 10

23°C / 23°C
light rain
humidity: 75% | wind: 36 kmh

Local Water Conditions and Nearby Spots

Nearby Beaches and Water Temperatures

Armstrong Beach

⭐ 3.1/5
23.8°C

Figtree Beach

⭐ 3.5/5
23.1°C

Sarina Beach

⭐ 5.0/5
24.5°C

Campwin Beach

⭐ 3.6/5
24.9°C

Grasstree Beach

⭐ 4.6/5
24.8°C

Swimming Conditions

Swimming at Armstrong Beach is allowed, though it’s very much a natural, unpatrolled beach where conditions can change. The shoreline is relatively open, so tides, wind, and swell all influence how suitable the water is on any given day, and swimmers are best to choose calm conditions. During the warmer months, usually from November to May, marine stingers may be present, which is why many locals wear stinger suits or limit time in the water. Outside the stinger season, the warm sea and quiet setting make Armstrong Beach suitable for casual swimming, particularly for confident swimmers who keep an eye on local conditions.

🏄‍♀️ Nearby Surf Spots and Water Temperatures

South Wall Mackay Harbour

⭐ 1/5
23.5°C

North Wall Mackay Harbour Beach

⭐ 3/5
25.2°C

Lamberts Beach

⭐ 1/5
24.6°C

Eimeo Point

⭐ 1/5
23.5°C

Dolphin Heads

⭐ 2/5
24.8°C

Frequently Asked Questions

What is the sea water temperature in Armstrong Beach today?
Sea water temperature in Armstrong Beach in the Coral Sea today is 24°C.
What is the water temperature in Armstrong Beach during summer?
During summer, the water temperature in Armstrong Beach typically ranges from 26°C to 31°C.
What is the water temperature in Armstrong Beach during autumn?
During autumn, the water temperature in Armstrong Beach typically ranges from 22°C to 31°C.
What is the water temperature in Armstrong Beach during spring?
During spring, the sea water temperature in Armstrong Beach typically ranges from 20°C to 29°C.
What is the water temperature in Armstrong Beach during winter?
During winter, the sea water temperature in Armstrong Beach typically ranges from 20°C to 26°C.
Which beaches are popular in the Armstrong Beach area?
Some of the most popular beaches in the Armstrong Beach area include: Armstrong Beach, Figtree Beach, Sarina Beach, Campwin Beach, Grasstree Beach.
What are the nearest surf spots to Armstrong Beach?
Some of the closest surf spots near Armstrong Beach include South Wall Mackay Harbour, North Wall Mackay Harbour Beach, Lamberts Beach.