This data the coastal Guilderton 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.
Water temperature in Guilderton today is 18.1°C. Based on our historical data over a period of ten years, the warmest water in this day in the Indian Ocean near Guilderton was recorded in 2014 and was 20°C, and the coldest was recorded in 2012 at 17.5°C. Sea water temperature in Guilderton is expected to rise to 18.5°C in the next 10 days. September average water temperature in Guilderton is 18.5°C, the minimum temperature is 16.4°C, and the maximum is 20.2°C.
The swimming season in Guilderton lasts from November to July. During those months, Guilderton water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Guilderton in winter reaches 19.4°C, in spring 19.3°C, in summer the average temperature rises to 22.4°C, and in autumn it is 22°C.
5 September 2025 |
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today temp |
18.1°C |
4 September 2025 |
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yesterday temp |
17.9°C |
The ocean salinity in Guilderton is 35.23‰, and the average salinity of the World Ocean is 35‰.
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 Guilderton. 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 Guilderton. 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 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
7' 4" | 8' 1" | 8' 4" | 9' 8" |
2.24 m | 2.46 m | 2.55 m | 2.94 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
10' 9" | 11' 2" | 12' 5" | 14' 6" |
3.28 m | 3.41 m | 3.79 m | 4.41 m |
Data in a table show Guilderton temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast Guilderton.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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14.9°C | 13.7°C | 13.6°C | 16.4°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
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14.5°C | 13.1°C | 14.5°C | 14.5°C |
You may also be interested in other sections of our site for Guilderton: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Guilderton. 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 Guilderton 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
Month | Avr | Min | Max | |
---|---|---|---|---|
January | 22.6°C | 20.8°C | 25.6°C | warm |
Ocean water temperature in Guilderton in January | ||||
February | 23.1°C | 21°C | 26.5°C | warm |
Ocean water temperature in Guilderton in February | ||||
March | 22.9°C | 21.3°C | 26.8°C | warm |
Ocean water temperature in Guilderton in March | ||||
April | 22°C | 20.1°C | 24.4°C | warm |
Ocean water temperature in Guilderton in April | ||||
May | 21.2°C | 19.4°C | 23.2°C | warm |
Ocean water temperature in Guilderton in May | ||||
June | 20.4°C | 17.6°C | 22.4°C | warm |
Ocean water temperature in Guilderton in June | ||||
July | 19.3°C | 17.3°C | 21.3°C | cold |
Ocean water temperature in Guilderton in July | ||||
August | 18.6°C | 17.1°C | 20.2°C | cold |
Ocean water temperature in Guilderton in August | ||||
September | 18.5°C | 16.4°C | 20.2°C | cold |
Ocean water temperature in Guilderton in September | ||||
October | 19.1°C | 16.9°C | 21.1°C | cold |
Ocean water temperature in Guilderton in October | ||||
November | 20.2°C | 18.3°C | 22.9°C | warm |
Ocean water temperature in Guilderton in November | ||||
December | 21.5°C | 19.2°C | 24.3°C | warm |
Ocean water temperature in Guilderton in December |