Amatu Water Temperature and Wetsuit Guide
(Chiba, Japan)
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Today's Amatu sea temperature is 19.6 °C
(Which is normal for this time of year)
| Mean: | 19.7 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 18.1 °C to 21.9 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 06 May (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a spring wetsuit.
Cloudy and warm but the water temperature at Amatu will be noticeably colder than the air today. Most surfers will need a spring wetsuit. Feeling warmer out of the water than in the sea today.
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 Amatu. 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.
Amatu sea temperatures peak in the range 26 to 28°C (79 to 82°F) on around the 15th of August and are at their coldest on about the 1st of March, in the range 15 to 17°C (59 to 63°F). Year round warm sea temperatures at Amatu climb to their maximum in mid August. Even then a rash vest and board shorts should be fine for surfing at any time of year. The coldest seasonal sea temperatures at Amatu 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 Amatu 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 Amatu. Refer to our detailed weather forecasts for this information.
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