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San Mateo
Water Temperature in the Pacific Ocean in San Mateo, California: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in San Mateo 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 San Mateo
56°F
TODAY
56°F
YESTERDAY
54°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Pacific Ocean in San Mateo is 13.2°F. The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.
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 San Mateo Over the Last 30 Days
The water temperature in San Mateo 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 San Mateo will remain nearly unchanged in the coming days, its value will be 55°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 San Mateo 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 |
|---|---|---|---|
| Apr 18 | 54°F | 55°F | |
| Apr 19 | 55°F | 54°F | |
| Apr 20 | 55°F | 56°F | |
| Apr 21 | 56°F | 55°F | |
| Apr 22 | 55°F | 55°F | |
| Apr 23 | 56°F | 54°F | |
| Apr 24 | 56°F | 55°F | |
| Apr 25 | 56°F | 55°F | |
| Apr 26 | 55°F | 56°F | |
| Apr 27 | 55°F | 56°F | |
| Apr 28 | 54°F | 56°F | |
| Apr 29 | 56°F | 56°F | |
| Apr 30 | 54°F | 55°F | |
| May 1 | 54°F | 55°F | |
| May 2 | 53°F | 55°F | |
| May 3 | 53°F | 55°F |
Sea Temperature in San Mateo Throughout the Year
Throughout the year, the sea temperature in San Mateo never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Pacific Ocean in San Mateo.
January
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 54°F | 57°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 54°F | 57°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 59°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 55°F | 61°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 55°F | 61°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 |
|---|---|---|
| 54°F | 60°F | 66°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 San Mateo
You can explore detailed data on how the water temperature in San Mateo varies each month:
What Beaches Are There In and Around San Mateo?
Coyote Point Beach
Coyote Point Beach is a 4-stars sandy beach, located in a 2 km (1 miles) radius of San Mateo. There is parking. There are restrooms. There are cafés. Coyote Point 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.
Aquatic Park
Aquatic Park is a 4-stars sandy beach, located in a 2 km (1 miles) radius of San Mateo. There is parking. There are restrooms. There are cafés. Aquatic Park 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.
3rd Avenue Beach
3rd Avenue Beach is a 2-stars sandy beach, located in a 2 km (1 miles) radius of San Mateo. There is parking. It is suitable for surfing.
Lakeshore Park Beach
Lakeshore Park Beach is a 3-stars sandy beach, located in a 3 km (2 miles) radius of San Mateo. There is parking. There are restrooms. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Belmont Slough Beach
Belmont Slough Beach is a 3-stars sandy beach, located in a 6 km (4 miles) radius of San Mateo. There is parking. Belmont Slough 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.
Marlin Park Beach
Marlin Park Beach is a 3-stars sandy beach, located in a 7 km (4 miles) radius of San Mateo. There is parking. There are restrooms. Marlin Park 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.
San Mateo Weather
APRIL 26
50°F / 55°F
light rainhumidity: 85% | wind: 2 mph
APRIL 27
48°F / 57°F
overcast clouds: 85-100%humidity: 84% | wind: 1 mph
APRIL 28
50°F / 63°F
scattered clouds: 25-50%humidity: 79% | wind: 1 mph
APRIL 29
64°F / 64°F
overcast clouds: 85-100%humidity: 64% | wind: 2 mph
Sea Temperature in the Pacific Ocean in San Mateo: 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.
San Mateo is located in North America in the Northern Hemisphere at a latitude of 38 degrees, along the shores of the Pacific Ocean. San Mateo lies within the California in United States.
The average annual daytime air temperature in San Mateo 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, San Mateo 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 San Mateo is 57°F (14°C). In April, the water reaches its lowest point of the year at 48°F (9°C), while in September, it peaks at 66°F (19°C). In San Mateo, the water temperature in the Pacific Ocean never consistently reaches a comfortable level for swimming in any month.
Geographical Location of San Mateo
Nearby Cities
Frequently Asked Questions About San Mateo and its Water Temperatures
What is the current sea temperature in San Mateo?
The water temperature today in the Pacific Ocean in San Mateo is 56°F (13.5°C).
In which months is the water temperature in San Mateo comfortable for swimming?
It cannot be guaranteed that the water temperature in San Mateo will be comfortable for swimming in any month of the year.
What is the water temperature in San Mateo during the winter?
The water temperature in the Pacific Ocean in San Mateo during the winter ranges from 50°F to 61°F (10°C to 16°C).
What is the water temperature in San Mateo during the spring?
The water temperature in the Pacific Ocean in San Mateo during the spring ranges from 48°F to 61°F (9°C to 16°C).
What is the water temperature in San Mateo during the summer?
The water temperature in the Pacific Ocean in San Mateo during the summer ranges from 48°F to 64°F (9°C to 18°C).
What is the water temperature in San Mateo during the fall?
The water temperature in the Pacific Ocean in San Mateo during the fall ranges from 52°F to 66°F (11°C to 19°C).
Is it possible to swim in the sea in San Mateo at any time of the year?
In San Mateo, the Pacific Ocean is quite cold, and swimming is almost impossible as the water temperature never reaches 70°F (21°C).
What sea temperatures can I expect in San Mateo in the next month?
In May, the water temperature in the Pacific Ocean in San Mateo will range between 48°F (9°C) and 61°F (16°C)