uk es it fr pt nl
Uchiumi water temperature
Uchiumi ratings
Quality on a good day: 2.0
Consistency of Surf: 3.0
Difficulty Level: 3.0
Crowds: 2.0

Overall: 3.0

See all 18 ratings

Based on 1 vote. Vote


Surf Report Feed

Uchiumi Water Temperature and Wetsuit Guide

(Kyu Shu, Japan)

Today's Uchiumi sea temperature is 18.1 °C.

Statistics for 18 Feb (1981–2005) – mean: 19.4 °C, range: 18.4 °C to 20.3 °C

The water temperature (18 °C) at Uchiumi is quite warm but you will need at least quality spring wetsuit, and maybe neoprene hood because it will be cloudy with an effective air temperature of just (7 °C). No need for neoprene boots or gloves.

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 Uchiumi. 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.

Uchiumi 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.

Uchiumi sea temperatures peak in the range 27 to 30°C (81 to 86°F) on around the 6th of August and are at their lowest on about the 1st of March, in the range 18 to 20°C (64 to 68°F). Year round warm sea temperatures at Uchiumi climb to their highest 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 Uchiumi sea temperatures at the beginning of March require something like a 3/2mm fully sealed wetsuit.

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