World sea water temperatures

Water temperature in Hillarys

This data the coastal Hillarys ocean water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current ocean temperature in Hillarys

Water temperature in Hillarys today is 17.4°C. Based on our historical data over a period of ten years, the warmest water in this day in the Indian Ocean near Hillarys was recorded in 2014 and was 19.3°C, and the coldest was recorded in 2016 at 16.9°C. Sea water temperature in Hillarys is expected to rise to 17.9°C in the next 10 days. September average water temperature in Hillarys is 18°C, the minimum temperature is 16.2°C, and the maximum is 19.7°C.

The swimming season in Hillarys lasts from November to June. During those months, Hillarys water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Hillarys in winter reaches 18.9°C, in spring 19°C, in summer the average temperature rises to 22.4°C, and in autumn it is 21.8°C.

Hillarys water temperature now


5 September 2025
today temp
17.4°C
4 September 2025
yesterday temp
17.3°C


The ocean salinity in Hillarys is 35.23‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Hillarys for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Hillarys. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Hillarys. Data in table shown for 5 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

0-3 h3-6 h6-9 h9-12 h
7' 1"7' 4"7' 7"7' 9"
2.15 m2.23 m2.3 m2.37 m
12-15 h15-18 h18-21 h21-24 h
8' 4"8' 6"10' 0"11' 6"
2.54 m2.58 m3.04 m3.51 m

Surf report in Hillarys

Hillarys wave height and direction

Hillarys weather forecast

Hillarys wind speed and direction

Current temperature and weather

Data in a table show Hillarys temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Hillarys.

0-3 h3-6 h6-9 h9-12 h
11.8°C11.4°C11.8°C15.5°C
12-15 h15-18 h18-21 h21-24 h
13.8°C12.9°C13.1°C12.5°C

You may also be interested in other sections of our site for Hillarys: Sunrise and Sunset, Tides

Hillarys water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Hillarys. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Hillarys on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

MonthAvrMinMax
January22.7°C20.9°C25.5°Cwarm
Ocean water temperature in Hillarys in January
February23°C21.1°C25.9°Cwarm
Ocean water temperature in Hillarys in February
March22.8°C21°C26.1°Cwarm
Ocean water temperature in Hillarys in March
April21.8°C20.1°C24°Cwarm
Ocean water temperature in Hillarys in April
May20.7°C18.9°C22.8°Cwarm
Ocean water temperature in Hillarys in May
June19.8°C17.9°C21.7°Ccold
Ocean water temperature in Hillarys in June
July18.7°C16.9°C20.3°Ccold
Ocean water temperature in Hillarys in July
August18.1°C16.7°C19.7°Ccold
Ocean water temperature in Hillarys in August
September18°C16.2°C19.7°Ccold
Ocean water temperature in Hillarys in September
October18.8°C16.7°C20.9°Ccold
Ocean water temperature in Hillarys in October
November20.1°C18.1°C23°Cwarm
Ocean water temperature in Hillarys in November
December21.5°C19.4°C23.9°Cwarm
Ocean water temperature in Hillarys in December

Chart monthly average water temperature in Hillarys

Water temperature in Hillarys

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 16°C
 Average temperature  Maximum temperature

Nearby beaches and cities

The nearest beaches and cities from Hillarys with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

WaterWeatherWave
Sorrento17.5°C14°C2.55 m
Trigg Beach17.6°C14°C2.55 m
Mindarie17.4°C13°C2.36 m
Quinns Rocks17.4°C13°C2.36 m
Floreat Beach17.6°C14°C2.23 m
City Beach17.6°C14°C2.23 m
Swanbourne17.5°C14°C2.23 m
Claremont17.2°C14°C1.87 m
Manning16.7°C14°C1.87 m
Leighton Beach17.4°C14°C1.85 m

Western Australia photo gallery

  • Town beaches
  • Magic sunsets
  • Windsurfing season
  • Bluff Point Beach

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Vote for Western Australia best beach

Current rating: (0 votes cast)

If you know this place (Hillarys) and want to leave your comment or rate it, then fill out the following form.

Your rating for this place:

Does this place have a "Blue Flag" award [1], are there rip currents and what type of beach is it, sand or pebble:

Is the beach a dog-friendly place, child friendly or a nudist beach?


Your comments for this place (water quality, crowds, facilities, activities, lifeguards, service etc.):



[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

Get widget or API for your website

Our report for Hillarys is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

Contact us: admin@seatemperature.info
privacy policy