Chokusen Water Temperature and Wetsuit Guide
(Kyu Shu, Japan)
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Today's Chokusen sea temperature is 22.2 °C
(Which is normal for this time of year)
| Mean: | 22.6 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 21.5 °C to 23.7 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 06 May (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a shorty .
Sunny with pleasantly warm air temperatures (feeling like 20 °C once we account for wind), and similar sea temperatures (22 °C). Wear boardshorts or a shorty, or better still a thin summer wetsuit to keep the UV off.
Map of current Japan Surface Water Temperatures based on measurements from oceanographic satellites |
Map of current Japan 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 Chokusen. 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.
Chokusen sea water temperatures peak in the range 27 to 30°C (81 to 86°F) on around the 4th of August and are at their coldest on about the 1st of March, in the range 18 to 20°C (64 to 68°F). Year round warm sea water temperatures at Chokusen climb to their maximum in early August. Even then a rash vest and board shorts should be fine for surfing at any time of year. The coldest Chokusen sea water temperatures at the beginning of March require something like a 3/2mm fully sealed wetsuit.
Actual sea surface water temperatures close to shore at Chokusen 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 Chokusen. Refer to our detailed weather forecasts for this information.
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