This data the coastal Guadalupe Island 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 Guadalupe Island today is 71.8°F. Based on our historical data over a period of ten years, the warmest water in this day in the Pacific Ocean near Guadalupe Island was recorded in 2014 and was 74.3°F, and the coldest was recorded in 2010 at 65.1°F. Sea water temperature in Guadalupe Island is expected to drop to 70.5°F in the next 10 days. September average water temperature in Guadalupe Island is 70.9°F, the minimum temperature is 64.2°F, and the maximum is 75°F.
The swimming season in Guadalupe Island lasts from July to November. During those months, Guadalupe Island water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Guadalupe Island in winter reaches 63°F, in spring 62.6°F, in summer the average temperature rises to 67.6°F, and in autumn it is 69.3°F.
September 26, 2025 |
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today temp |
71.8°F |
September 25, 2025 |
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yesterday temp |
71.8°F |
The ocean salinity in Guadalupe Island is 33.38‰, 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 Guadalupe Island. 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 Guadalupe Island. Data in table shown for September 27, 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 |
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3' 6" | 3' 8" | 3' 9" | 3' 10" |
1.07 m | 1.12 m | 1.15 m | 1.16 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
3' 11" | 4' 2" | 4' 6" | 4' 9" |
1.2 m | 1.27 m | 1.37 m | 1.45 m |
Data in a table show Guadalupe Island temperature today (September 27, 2025). For more information and forecast for a few days, go to the weather forecast Guadalupe Island.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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66°F | 64.6°F | 63.9°F | 64.4°F |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
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66.7°F | 70.2°F | 67.8°F | 64.9°F |
You may also be interested in other sections of our site for Guadalupe Island: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Guadalupe Island. 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 Guadalupe Island 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