Today's Niyodo Rivermouth sea temperature is 23.5 °C
(Slightly warmer than usual)
| Mean: | 22.7 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Range: | 21.8 °C to 23.7 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 09 Jun (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a shorty .
Warm in and out of the water temperature at Niyodo Rivermouth today, but forecast to be overcast. With sea temperatures of 23 °C and a wind chill of 22 °C, most surfers will choose a shorty or a summer suit or just board shorts.
 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 Niyodo Rivermouth. 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.
Niyodo Rivermouth 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 Niyodo Rivermouth 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 Niyodo Rivermouth 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 Niyodo Rivermouth 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 Niyodo Rivermouth. Refer to our detailed weather forecasts for this information.
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