Today's 12th Street Jetty sea temperature is 19.5 °C
(3.2°C warmer than normal for this time of year)
| Mean: | 16.3 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 12.7 °C to 19.1 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 09 Jun (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a summer wetsuit.
The water temperature (19 °C) at 12th Street Jetty is relatively warm. If the sun does come out as forecast, it should feel warm enough to surf in a summer wetsuit. Effective air temperature of 19 °C.
 Map of current United States Surface Water Temperatures (based on measurements from oceanographic satellites) |  Map of current United States Sea Water Temperature Anomalies (compared with long term averages at this time of year) |
click thumbnails to expand
Below is a graph of Historical Sea Surface Temperature for 12th Street Jetty. This has been derived from analysis of two decades of oceanographic satellite measurements of nearby open water. We have calculated the average water temperature variation around the year as well as the extremes that have been observed on each date.
All of the graphs for the surf breaks presented on Surf-Forecast.com are on the same scale to enable comparison between locations around the world.
12th Street Jetty water temperatures peak in the range 22 to 25°C (72 to 77°F) on around the 9th of August and are at their coldest on about the 1st of March, in the range 1 to 4°C (34 to 39°F). 12th Street Jetty water temperatures are always warm reach their highest in early to mid August. You'll need a 2mm neoprene top or a shorty at dawn/dusk or if it's windy. The coldest water temperatures at 12th Street Jetty mean that you will need a flexible 6/5/4mm wetsuit or a well fitting 5/4mm wetsuit with gloves and 5mm neoprene booties and a hood to surf here at the beginning of March.
Actual sea surface water temperatures close to shore at 12th Street Jetty can vary by several degrees compared with these open water averages. This is especially true after heavy rain, close to river mouths or after long periods of strong offshore winds. Offshore winds cause colder deep water to replace surface water that has been warmed by the sun. Air temperature, wind-chill and sunshine should also be considered before deciding on the kind of wetsuit needed to stay warm when surfing at 12th Street Jetty. Refer to our detailed weather forecasts for this information.
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