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

Overall: 3.2

See all 18 ratings

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Nagai Point Water Temperature and Wetsuit Guide

(Kanagawa, Japan)

Today's Nagai Point sea temperature is 23.8 °C.

Statistics for 21 Oct (1981–2005) – mean: 23.0 °C, range: 22.2 °C to 24.0 °C

The Nagai Point water temperature is warm (23 °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 Nagai Point. 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.

Nagai Point 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.

Nagai Point sea temperatures peak in the range 26 to 28°C (79 to 82°F) on around the 15th of August and are at their lowest on about the 1st of March, in the range 15 to 17°C (59 to 63°F). Year round warm sea temperatures at Nagai Point climb to their warmest in mid 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 Nagai Point 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 Nagai Point 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 Nagai Point. Refer to our detailed weather forecasts for this information.