Date and Time: Monday, September 14, 2026 at 9:41 PM PDT
Today across coastal Washington State, mild atmospheric and marine conditions prevail as high pressure builds offshore. Temperatures along the outer coast and inland waters range from afternoon highs in the mid-60s(°F) to overnight lows near 55(°F). Light winds remain persistent across the region, with southwest to northwest breezes generally blowing between 5 to 10 knots. Average overall wave sizes across the open coastal waters are holding steady at 3 to 5 feet, creating mostly moderate, manageable sea conditions throughout the day.
Real-time observations from offshore NOAA buoys indicate primary ocean swells arriving from the west and northwest at a height of 4 feet with a period of 8 seconds. Secondary swells are arriving from the southwest at 2 feet with a longer period of 13 to 14 seconds, contributing to energy mixing along the shorelines. Tidal conditions for coastal Washington feature a high tide occurring earlier in the day near 6.1 feet and a primary low tide around mid-afternoon dropping to 1.2 feet, with another mild high tide arriving later this evening.
Looking ahead to tomorrow, northwest winds are forecasted to shift slightly to the north at 5 to 10 knots while overall wave sizes gradually increase to between 4 and 6 feet along northern offshore waters. Weather conditions will remain mostly cloudy with stable marine conditions continuing through midweek.