Moonstone Beach water temperature
Moonstone Beach ratings
Quality on a good day: 4.0
Consistency of Surf: 5.0
Difficulty Level: 4.0
Crowds: 4.0

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Moonstone Beach Water Temperature and Wetsuit Guide

(California – Humboldt County, USA)

Today's Moonstone Beach sea temperature is 9.1 °C.

Statistics for 24 Apr (1981–2005) – mean: 11.3 °C, range: 10.2 °C to 13.7 °C

The Moonstone Beach water temperature (9 °C) is very cold. Although it will be cloudy today, air temperatures will be relatively mild, feeling like 11 °C. Despite the mild air, surfers will need plenty of neoprene: a good winter wetsuit, a neoprene hood, gloves and boots.

United States Sea Water Temperature

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

Map of current United States
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 Moonstone Beach. 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.

Moonstone Beach 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.

Moonstone Beach water temperatures peak in the range 11 to 17°C (52 to 63°F) on around the 25th of August and are at their coldest on about the 7th of April, in the range 10 to 13°C (50 to 55°F). The warmest water temperatures at Moonstone Beach in late August are ideally suited to a 4/3mm wetsuit + 3mm boots, although a 5/3mm wetsuit may be preferable for longer sessions and cold windy days. At its coldest in the first part of April, low water temperatures at Moonstone Beach are suited to a 5/4mm or 5/3mm good quality wetsuit with neoprene gloves and 3mm boots. You will need a hood if it's windy or the air is cold.

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

 

 

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