SLL-3425 Boston Harbor Entrance Buoy wind

SLL-3425 Boston Harbor Entrance Buoy is a weather buoy near Hull in the Massachusetts Bay and Marblehead sailing area. Readings from NERACOOS · Stone Living Lab.

Latest observation

Now 6 kn from SSW (213°), 2026-11-04 00:40 UTC (Tuesday 3 Nov 19:40 America/New_York). Air 15°C.

The last 24 hours

24 h: mean 7 kn, 72 readings, peak mean 14 kn, mostly WSW (239°).

Recent readings

2026-11-04 00:40 UTC: 6 kn from SSW (213°)
2026-11-03 23:40 UTC: 12 kn from SW (218°)
2026-11-03 22:40 UTC: 3 kn from SW (221°)
2026-11-03 21:40 UTC: 3 kn from SW (229°)
2026-11-03 20:40 UTC: 7 kn from WSW (241°)
2026-11-03 19:40 UTC: 4 kn from W (265°)
2026-11-03 18:40 UTC: 4 kn from E (97°)
2026-11-03 17:40 UTC: 4 kn from ENE (73°)

Position 42.341, -70.920; exposure marine. SLL-3425 Boston Harbor Entrance Buoy is on open water.

Forecast against this station

Judged on the forecast published by 6 am the same morning, over the last 7 days ECMWF IFS 0.25° has had the smallest wind-speed error at SLL-3425 Boston Harbor Entrance Buoy: 2.6 kn on average across 56 hourly comparisons, against 3.1 kn for HRRR 3 km (NOAA).

Judged on the forecast published by 6 pm the evening before, over the last 7 days ECMWF IFS 0.25° has had the smallest wind-speed error at SLL-3425 Boston Harbor Entrance Buoy: 2.7 kn on average across 56 hourly comparisons, against 3.3 kn for HRRR 3 km (NOAA).

How forecasts are checked.

Conditions map · All stations · Weather models

Stations near SLL-3425 Boston Harbor Entrance Buoy

Stone Living Lab Rainsford Island Weather Station, 2.4 nm away
Castle Island (NOS) 8444069, 4.1 nm away
Boston/Logan Intl, 4.2 nm away
CW2404 weather, 2.5 nm away
DW3706 weather, 3.2 nm away
BOSTON 16 NM East of Boston, MA, 11.9 nm away