Sippican Harbor near Marion Golf Club at Marion, Massachusetts water temperature
Sippican Harbor near Marion Golf Club at Marion, Massachusetts · Sea/Coast
The current water temperature at Sippican Harbor near Marion Golf Club at Marion is 21.8 °C (as of September 20, 2026, source: USGS).
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 410 data points since July 22, 2026.
Lowest recorded value: 21.8 °C on September 20, 2026 · highest value: 29.1 °C on August 9, 2026.
In September, temperatures have ranged between 21.8 °C and 25.3 °C.
The current value is 1.8 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Sippican Harbor near Marion Golf Club at Marion right now?
The current water temperature is 21.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Sippican Harbor near Marion Golf Club at Marion?
Currently 21.8 °C (updated continuously).
How warm is at Sippican Harbor near Marion Golf Club at Marion in September?
In September, the water temperature recently averaged 23.6 °C.
When is the water warmest at Sippican Harbor near Marion Golf Club at Marion?
Across the measurement record, August is on average the warmest month (26.2 °C).
How is the water quality at Sippican Harbor near Marion Golf Club at Marion?
The official classification is: excellent.
