Pacific water temperature
Pacific, Half Moon Bay · Sea/Coast
The current water temperature at Pacific is 15.4 °C (as of September 1, 2026, source: Open-Meteo marine model).
The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.
15.4 °C
Water quality
Official EPA rating: excellentMeasurement series & statistics
This measurement series includes 589 data points since July 3, 2026.
Lowest recorded value: 13.9 °C on July 10, 2026 · highest value: 16.0 °C on August 19, 2026.
Nearby waters
Pilarcitos C below Stone Dam near Hillsborough, California 15.2 °CSan Mateo C below Lo Crystal Sp Reservoir near San Mateo, California 14.5 °CSf Bay A San Mateo Bridge near Foster City, California 20.3 °CSouth San Francisco Bay at Dumbarton Bridge, California 20.9 °CPacific, Ocean Beach (San Francisco) 16.6 °C
More measuring points: Pacific
Frequently asked questions
Can you swim at Pacific right now?
The current water temperature is 15.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Pacific?
Currently 15.4 °C (updated continuously).
How is the water quality at Pacific?
The official classification is: excellent.
