U.S. Daily Port Activity and Shipment Volume Estimates in Metric Tons

PortWatch provides daily port call counts and shipment volume estimates in metric tons for maritime hubs across the United States. This CSV-formatted data tracks both incoming and outgoing trade flows to monitor national logistics activity. The records are updated frequently, with the latest data points extending into March 2026.

Use Cases

• Trend analysis of U.S. maritime trade using daily port call counts
• Economic forecasting based on incoming shipment volume estimates in metric tons
• Monitoring export-import balance via outgoing shipment volume metrics

Strengths

• Daily temporal granularity for high-frequency monitoring
• Provides both vessel counts and weight-based estimates
• Distinguishes between incoming and outgoing shipment directions

Limitations

• Shipment volumes are estimates rather than primary customs or manifest records
• Specific column headers and port-level metadata are not explicitly defined in the source
• Potential for reporting lags in daily port call counts

Provenance

Source

PortWatch

Collection Method

Estimated based on port activity monitoring

Time Range

Up to March 2026

Freshness

Updated as recently as March 2026

Geography

United States of America