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Futami water temperature
Futami ratings
Quality on a good day: 2.0
Consistency of Surf: 1.0
Difficulty Level: 1.0
Crowds: 4.0

Overall: 2.7

See all 18 ratings

Based on 1 vote. Vote


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Futami Water Temperature and Wetsuit Guide

(Okinawa, Japan)

Today's Futami sea temperature is 25.1 °C.

Statistics for 14 Dec (1981–2005) – mean: 23.8 °C, range: 22.6 °C to 24.8 °C

The water temperature (25 °C) at Futami is really very warm but the air temperature will feel cooler (windchill forecast 17 °C). If the sun does come out as forecast, it should feel warm enough to surf in a shorty anyway.

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 Futami. 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.

Futami 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.

Futami sea 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 18th of February, in the range 21 to 23°C (70 to 73°F). Year round warm sea temperatures at Futami climb to their highest in the third week of July. Even then a rash vest and board shorts should be fine for surfing at any time of year. Futami sea temperatures are lowest in the third week 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 Futami 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 Futami. Refer to our detailed weather forecasts for this information.