Half Moon Bay's water temperature peaks in the range of 14 to 17 °C (57 to 63 °F) around August 17 and reaches its minimum around February 10, in the range of 7 to 10 °C (45 to 50 °F). Today, the seawater temperature in the Pacific Ocean in Half Moon Bay is 11.6 °F. The water is slightly warmer, but still cold for most people. It's possible to swim in these conditions, but for most people, the time spent in the water should be limited to avoid hypothermia.
Even experienced swimmers may experience discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used. The following graph and table are the average sea temperature for Half Moon Bay State Beach calculated from more than twenty years of oceanographic data. As in the previous case, the water temperatures indicated correspond to the sea surface temperature (SST), which is the most relevant for recreational users.
To get an accurate forecast for water temperature in Half Moon Bay for any chosen month, compare two years within a 10-year range using the chart below. In addition to the seawater temperature in Half Moon Bay, the years selected in the table also show the values of the maximum and minimum temperatures for each of the days of July. The following graph and table are the average sea temperature in Half Moon Bay calculated from more than twenty years of oceanographic data. The time of year with the warmest waters lasts 2.5 months, from August 1 to October 17, with a higher average temperature at 57 °F.
The month of the year in Half Moon Bay with the warmest waters is September, with an average temperature of 58 °F. The time of year with the coldest water lasts 5.7 months, from December 21 to June 10, with an average temperature below 54 °F. The month of the year in Half Moon Bay with the coldest water is April, with an average temperature of 53 °F. The average water temperature in Half Moon Bay in winter reaches 54 °F, in spring 53.2 °F, in summer the average temperature rises to 56.3 °F, and in fall is 57.3 °F, and in autumn it is 57.3 °F °F.According to this score, the best time of year to visit Half Moon Bay for general outdoor tourist activities is from early July to late September, with a maximum score in the third week of August.
In Half Moon Bay, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year. The windiest month of the year in Half Moon Bay is May, with an average hourly wind speed of 10.9 miles per hour. For more information on the wave forecasts for the next ten days, see the sea state forecast for Half Moon Bay. In Half Moon Bay, the month with the most daily hours of sunshine is April, with an average of 8.63 hours of sunshine.
Half Moon Bay State Beach: Venice Beach is an excellent place for fishing enthusiasts, as it offers good opportunities to catch local fish. For each station, the records are corrected taking into account the difference in elevation between that station and Half Moon Bay according to the International Standard Atmosphere, and taking into account the relative change that occurs in the reanalysis between the two locations from the MERRA-2 satellite era. Half Moon Bay State Beach: Elmar Beach is an excellent place for fishing enthusiasts, as it offers good opportunities for fishing local fish. In Half Moon Bay, the water temperature in the Pacific Ocean never reaches a comfortable level for swimming in any month.
The hottest month of the year in Half Moon Bay is August, with an average maximum of 66 °F and a low of 55 °F.
