Half Moon Bay Water Temperature and Wetsuit Guide
(Washington State, USA)
- Forecast
- Maps
- Live
- Weather State
- Spot Information
Today's Half Moon Bay sea temperature is 50 °F
(Which is slightly warmer than usual)
| Mean: | 49 °F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Range: | 47 °F to 53 °F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Statistics for 27 Mar (1981–2005) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Today, many surfers would wear a winter wetsuit, a neoprene hood, gloves and boots.
The water temperature (50 °F) at Half Moon Bay is fairly cold. Surfers will need a quality steamer wetsuit, a neoprene hood, gloves and boots because it will be cloudy with an effective air temperature of (41 °F).
Map of current United States Surface Water Temperatures based on measurements from oceanographic satellites |
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 Half Moon Bay. 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.
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.
Half Moon Bay water temperatures peak in the range 14 to 17°C (57 to 63°F) on around the 17th of August and are at their minimum on about the 10th of February, in the range 7 to 10°C (45 to 50°F). The warmest seasonal water temperatures at Half Moon Bay in the middle of August lend themselves to a 4/3mm wetsuit or a 3/2mm suit and 3mm neoprene boots. The minimum water temperatures at Half Moon Bay mean that you will need a flexible 6/5/4mm wetsuit or a well fitting 5/4mm wetsuit with gloves and 5mm neoprene booties and a hood to surf here in early to mid February.
Actual sea surface water temperatures close to shore at Half Moon Bay 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 Half Moon Bay. Refer to our detailed weather forecasts for this information.
Nearest