Pacific water temperature
Pacific, Half Moon Bay · Sea/Coast
The current water temperature at Pacific is 16.2 °C (as of September 20, 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.
Water quality
Official EPA rating: excellentMeasurement series & statistics
This measurement series includes 609 data points since July 22, 2026.
Lowest recorded value: 14.1 °C on July 27, 2026 · highest value: 16.6 °C on September 18, 2026.
In September, temperatures have ranged between 14.8 °C and 16.6 °C.
The current value is 0.7 °C above the September average of this series.
Nearby waters
More measuring points: Pacific
Frequently asked questions
Can you swim at Pacific right now?
The current water temperature is 16.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Pacific?
Currently 16.2 °C (updated continuously).
How warm is at Pacific in September?
In September, the water temperature recently averaged 15.5 °C.
When is the water warmest at Pacific?
Across the measurement record, September is on average the warmest month (15.5 °C).
How is the water quality at Pacific?
The official classification is: excellent.
