Sea temperatures, water sports and vacation activities near Half Moon Bay, United States

Water temperatures throughout the year and general information about Half Moon Bay...

Half Moon Bay is a surf spot in the United States. The water temperature around Half Moon Bay has slight variability during the year. The temperature ranges from 7.6°C (45.6°F) in February up to 15.1°C (59.1°F) in the month of September, as shown in the interactive table below. The average water temperature throughout the year is 11°C (52°F) and the best time for water activities is early fall, since Half Moon Bay is located in the northern hemisphere.
Hover over the bars to see temperature for each month in Celsius and Fahrenheit.

What is the current water temperature at Half Moon Bay?

The current water temperature in the month of December at Half Moon Bay is ca:

Are there any other surf spots near by?

Yes, there are other surf spots in close proximity to Half Moon Bay. The nearest one is The Groins, which is only 0.6km (0.3miles) away from Half Moon Bay. Click here for more information on The Groins and its water temperature. Another fun surfspot near Half Moon Bay is Westport, which is 0.6km (0.4miles) away.

Are there sandy beaches near by?

There are a few gorgeous beaches close to Half Moon Bay. The nearest one is Ocean Shores, which is only 5km (3.1miles) away from Half Moon Bay. Another beautiful beach near Half Moon Bay is Gray Gables, which is approximately 9.2km (5.7miles) away.

What wetsuit thickness is needed for Half Moon Bay?

The sea temperature at Half Moon Bay is pretty cold, reaching up to 15°C (59°F) in the months of August, September, and October. During this time, in the early fall, a 3-4mm wetsuit is required to be able to stay in the water for a significant amount of time, but some people might even be fine with a good-quality 2/3mm suit for surfing, swimming, snorkelling, or scuba diving . Nevertheless, during January, February, and March, temperatures reach lows of nearly 8°C (46°F). During these months, a 5/4 wetsuit is required to be able to stay in the water for a significant amount of time, but some people might even be ok with a very good 4/3mm suit for short periods of time . For very chilly conditions and cold mornings/evenings, it might be better to have a pair of boots, a hoodie and a gloves.

How is the diving and fishing near Half Moon Bay?

Due to significant water temperature changes during the year, diving and fishing conditions alter a lot depending on the time of the year. The temperature ranges from 8 to 13°C (46-55°F) during January, February, and March. Haddock, Pollock, and Atlantic Cod are typical fish that can be found in waters of this temperature range. Nevertheless, the conditions change during fall when temperatures reach 10 to 15°C (50-59°F). Fish that like to swim in waters of this temperature range include: Atlantic Mackerel, Winter Flounder, and Tautog.

Directions to Half Moon Bay: How do I get there?

Please follow the directions in the map below.

Fun facts about Half Moon Bay...

Do you know what the the city Perna in Finland, the city Datagon in Philippines, and the city Nggesa in Indonesia have in common with Half Moon Bay? Click on the links to find out...