Today's Tainohama sea temperature is 28.6 °C
(Slightly warmer than usual (0.9° above average))
| Mean: | 27.7 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 26.0 °C to 29.3 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 10 Aug (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a summer wetsuit.
A hot and sunny day, feeling like 30 °C even after we account for wind, and very warm water temperature (28 °C) too at Tainohama. Surfers may need a thin summer wetsuit or at least a rash vest to block the UV.
 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 Tainohama. 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.
Tainohama sea temperatures peak in the range 26 to 29°C (79 to 84°F) on around the 6th of August and are at their lowest on about the 1st of March, in the range 16 to 18°C (61 to 64°F). Year round warm sea temperatures at Tainohama climb to their maximum in the first week of August. Even then a rash vest and board shorts should be fine for surfing at any time of year. The lowest seasonal sea temperatures at Tainohama at the beginning of March lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots.
Actual sea surface water temperatures close to shore at Tainohama 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 Tainohama. Refer to our detailed weather forecasts for this information.
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