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Sunabe Seawall Water Temperature and Wetsuit Guide

(Okinawa, Japan)

Today's Sunabe Seawall sea temperature is 21.9 °C.

Statistics for 18 Jan (1981–2005) – mean: 22.6 °C, range: 21.4 °C to 24.1 °C

The Sunabe Seawall water temperature is warm (21 °C) and the air temperature not too different (windchill forecast 15 °C). A good quality summer wetsuit would be ideal though a shorty will suffice.

Japan Sea Water Temperature

Map of current Japan
Surface Water Temperatures
based on measurements from oceanographic satellites
Japan Water Temperature Anomaly

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 Sunabe Seawall. 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.

Sunabe Seawall Water Temperature Graph

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.

Sunabe Seawall water temperatures peak in the range 28 to 30°C (82 to 86°F) on around the 19th of July and are at their lowest on about the 22nd of February, in the range 21 to 24°C (70 to 75°F). Year round warm water temperatures at Sunabe Seawall climb to their maximum in the third week of July. Even then a rash vest and board shorts should be fine for surfing at any time of year. Sunabe Seawall water temperatures are lowest in the second half of February. Surfers should use a 2mm long sleeve shorty or a 3/2mm spring wetsuit if the wind is up.

Actual sea surface water temperatures close to shore at Sunabe Seawall 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 Sunabe Seawall. Refer to our detailed weather forecasts for this information.