Honolulu's weather forecast is expected to bring generally drier conditions with partly sunny skies, though cloudier conditions will persist along windward mauka slopes. The National Weather Service in Honolulu reports that gentle easterly trade winds will blow today, encouraging land and sea breezes in sheltered areas. These winds will bring isolated showers to windward exposures and mauka slopes, while leeward areas on the Big Island may see increasing clouds and showers.

A high-pressure system and upper-level ridge building from the west will provide more stability, resulting in clearer skies and fewer windward showers into next week. However, rain chances are expected to increase late next week due to a southerly flow bringing some moisture, potentially triggering light showers.

Marine conditions will be active, with a combination of a northeast swell and a long-period northwest swell pushing high surf to Hawaiian shorelines. Surf heights of 15 to 20 feet are forecasted along northern shores, prompting a High Surf Advisory for north and west facing shores. The advisory may be lifted for east-facing shores but is expected to continue through Saturday for north and west shores.

A Small Craft Advisory has been issued for waters exposed to the increasing swells and moderate to fresh east winds. The advisory affects several areas, including the Kauai Channel and Maui County Windward Waters. South-facing shores will have calmer conditions with a small south swell expected mid-week.

For Valentine's Day, there is a possibility of light showers with breezy southwesterly winds. Ensemble models show a chance of rain on Friday, but the exact timing and extent are uncertain.