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Half Moon Bay
Water Temperature in the Pacific Ocean in Half Moon Bay, California: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Half Moon Bay in California, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Half Moon Bay
52°F
TODAY
52°F
YESTERDAY
53°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Pacific Ocean in Half Moon Bay is 11.1°F. The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for Pacific Ocean in Half Moon Bay Over the Last 30 Days
The water temperature in Half Moon Bay today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Half Moon Bay will remain nearly unchanged in the coming days, its value will be 53°F.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across United States to enhance accuracy.
Water temperature data for Half Moon Bay and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Feb 17 | 53°F | 54°F | |
| Feb 18 | 51°F | 53°F | |
| Feb 19 | 51°F | 53°F | |
| Feb 20 | 51°F | 54°F | |
| Feb 21 | 52°F | 54°F | |
| Feb 22 | 51°F | 55°F | |
| Feb 23 | 52°F | 53°F | |
| Feb 24 | 52°F | 54°F | |
| Feb 25 | 53 | 52°F | |
| Feb 26 | 55 | 52°F | |
| Feb 27 | 55 | 53°F | |
| Feb 28 | 55 | 53°F | |
| Mar 1 | 54 | 53°F | |
| Mar 2 | 55 | 53°F | |
| Mar 3 | 55 | 53°F | |
| Mar 4 | 55 | 53°F |
Sea Temperature in Half Moon Bay Throughout the Year
Throughout the year, the sea temperature in Half Moon Bay never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Pacific Ocean in Half Moon Bay.
January
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 54°F | 59°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 59°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 59°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 61°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 56°F | 63°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 55°F | 63°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 58°F | 64°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 59°F | 64°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 55°F | 60°F | 64°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 59°F | 64°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 58°F | 64°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 61°F |
Monthly Water Temperature Histogram for Pacific Ocean in Half Moon Bay
You can explore detailed data on how the water temperature in Half Moon Bay varies each month:
What Beaches Are There In and Around Half Moon Bay?
Half Moon Bay State Beach - Francis Beach
Half Moon Bay State Beach - Francis Beach is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Half Moon Bay. There is parking. There are restrooms. Half Moon Bay State Beach - Francis Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing.
Half Moon Bay State Beach - Venice Beach
Half Moon Bay State Beach - Venice Beach is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Half Moon Bay. There is parking. There are restrooms. Half Moon Bay State Beach - Venice Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing.
Poplar Beach
Poplar Beach is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Half Moon Bay. There is parking. There are restrooms. Poplar Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Half Moon Bay State Beach - Elmar Beach
Half Moon Bay State Beach - Elmar Beach is a 2-stars sandy beach, located in a 2 km (1 miles) radius of Half Moon Bay. There is parking. Half Moon Bay State Beach - Elmar Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Half Moon Bay State Beach - Dunes Beach
Half Moon Bay State Beach - Dunes Beach is a 4-stars sandy beach, located in a 3 km (2 miles) radius of Half Moon Bay. There is parking. There are restrooms. Half Moon Bay State Beach - Dunes Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Redondo Beach
Redondo Beach is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Half Moon Bay. There is parking.
Venice State Beach
Venice State Beach is a 2-stars sandy beach, located in a 4 km (2 miles) radius of Half Moon Bay. There is parking. There are restrooms.
Wavecrest Beach
Wavecrest Beach is a 2-stars sandy beach, located in a 4 km (2 miles) radius of Half Moon Bay. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Three Rocks Beach
Three Rocks Beach is a 3-stars sandy beach, located in a 4 km (2 miles) radius of Half Moon Bay. There is parking. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Pelican Point Beach
Pelican Point Beach is a 2-stars sandy beach, located in a 4 km (2 miles) radius of Half Moon Bay. There are restrooms.
Half Moon Bay State Beach - Roosevelt Beach
Half Moon Bay State Beach - Roosevelt Beach is a 4-stars sandy beach, located in a 4 km (2 miles) radius of Half Moon Bay. There is parking. There are restrooms. Half Moon Bay State Beach - Roosevelt Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Cowell Ranch Beach
Cowell Ranch Beach is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Half Moon Bay. There is parking. Cowell Ranch Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Miramar Beach
Miramar Beach is a 4-stars sandy beach, located in a 5 km (3 miles) radius of Half Moon Bay. There is parking. There are restrooms. There are cafés. Miramar Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Mirada Surf Beach
Mirada Surf Beach is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Half Moon Bay. There is parking. There are restrooms. There are cafés.
Surfers Beach
Surfers Beach is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Half Moon Bay. There is parking. There are restrooms. There are cafés. Surfers Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing.
Pillar Point Harbor Beach
Pillar Point Harbor Beach is a 3-stars sandy beach, located in a 6 km (4 miles) radius of Half Moon Bay. There is parking. There are restrooms. There are cafés.
Ross Cove Beach
Ross Cove Beach is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Half Moon Bay. There is parking. There are restrooms. Ross Cove Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing.
Mavericks Beach
Mavericks Beach is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Half Moon Bay. There is parking. There are restrooms. It is suitable for surfing.
Pillar Point Marsh Beach
Pillar Point Marsh Beach is a 2-stars sandy beach, located in a 7 km (4 miles) radius of Half Moon Bay. There is parking. There are restrooms.
Seal Cove
Seal Cove is a 2-stars sandy beach, located in a 10 km (6 miles) radius of Half Moon Bay. There is parking.
Half Moon Bay Weather
FEBRUARY 25
52°F / 61°F
clear skyhumidity: 64% | wind: 2 mph
FEBRUARY 26
55°F / 66°F
clear skyhumidity: 61% | wind: 1 mph
FEBRUARY 27
52°F / 68°F
overcast clouds: 85-100%humidity: 69% | wind: 1 mph
Sea Temperature in the Pacific Ocean in Half Moon Bay: General Trends and Swimming Opportunities
The coastal region of California, United States, exhibits a Mediterranean climate characterized by mild, wet winters and warm, dry summers. Marked by moderate temperatures year-round, it experiences more fog and significantly cooler temperatures than the inland areas due to proximity to the Pacific Ocean.
Half Moon Bay is located in North America in the Northern Hemisphere at a latitude of 37 degrees, along the shores of the Pacific Ocean. Half Moon Bay lies within the California in United States.
The average annual daytime air temperature in Half Moon Bay is 66°F (19°C), with the average nighttime temperature being 52°F (11°C). The highest average daily temperature occurs in September, reaching 73°F (23°C), while the lowest is in January at 61°F (16°C). As for nighttime temperatures, the minimum average temperature of 44°F (7°C) is recorded in January, and the maximum is in August, reaching 57°F (14°C).
According to historical data, Half Moon Bay experiences 56 rainy days per year, which accounts for 15 percent of all days in the year. On average, there are 5 rainy days each month. The wettest month is February, with 9 rainy days and 5.5 inches (139 mm) of precipitation, while the driest month is July, which typically has 0 rainy days and only 0.0 inches (1 mm) of precipitation.
The average annual water temperature in Pacific Ocean in Half Moon Bay is 57°F (14°C). In January, the water reaches its lowest point of the year at 48°F (9°C), while in July, it peaks at 64°F (18°C). In Half Moon Bay, the water temperature in the Pacific Ocean never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Half Moon Bay
Nearby Cities
Frequently Asked Questions About Half Moon Bay and its Water Temperatures
What is the current sea temperature in Half Moon Bay?
The water temperature today in the Pacific Ocean in Half Moon Bay is 52°F (11°C).
In which months is the water temperature in Half Moon Bay comfortable for swimming?
It cannot be guaranteed that the water temperature in Half Moon Bay will be comfortable for swimming in any month of the year.
What is the water temperature in Half Moon Bay during the winter?
The water temperature in the Pacific Ocean in Half Moon Bay during the winter ranges from 48°F to 61°F (9°C to 16°C).
What is the water temperature in Half Moon Bay during the spring?
The water temperature in the Pacific Ocean in Half Moon Bay during the spring ranges from 50°F to 63°F (10°C to 17°C).
What is the water temperature in Half Moon Bay during the summer?
The water temperature in the Pacific Ocean in Half Moon Bay during the summer ranges from 48°F to 64°F (9°C to 18°C).
What is the water temperature in Half Moon Bay during the fall?
The water temperature in the Pacific Ocean in Half Moon Bay during the fall ranges from 52°F to 64°F (11°C to 18°C).
Is it possible to swim in the sea in Half Moon Bay at any time of the year?
In Half Moon Bay, the Pacific Ocean is quite cold, and swimming is almost impossible as the water temperature never reaches 70°F (21°C).
Is Half Moon Bay a popular tourist destination for beach vacations?
Half Moon Bay a fairly popular beach destination, offering good conditions for swimming and relaxation, with a steady flow of tourists, especially during peak seasons.
What sea temperatures can I expect in Half Moon Bay in the next month?
In March, the water temperature in the Pacific Ocean in Half Moon Bay will range between 50°F (10°C) and 59°F (15°C)