Plum Island Beach, NH
Beach Alerts
Crowd Alert
Crowd Alert: Beach at capacity from 2 PM-6 PM — consider alternative times
Wind Alert
Wind Alert: Gusty conditions from 3 PM-6 PM — secure umbrellas & shade (19mph)
About This Beach
Plum Island Beach offers a unique blend of natural beauty and a relaxed atmosphere. The meeting of the Merrimack River and the Atlantic Ocean creates a dynamic environment with varying water conditions and expansive sandy areas. While facilities are available (though inconsistent), the beach often provides a less crowded experience compared to other nearby beaches, particularly during off-peak times. The stunning sunsets are a major draw.
*Click a parking icon on the map to draw the shortest path to the nearest entrance.
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Beach Overview
Amenities
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Weather Forecast
Updated: 7/18/2026, 1:15:00 PM
Hourly
| Time | Air Temp | UV | Wind | Rain |
|---|---|---|---|---|
| 13:00 | 84° | 4 | 13 mph | 0 |
| 14:00 | 83° | 3 | 14 mph | 0 |
| 15:00 | 82° | 3 | 16 mph | 0 |
| 16:00 | 80° | 0 | 15 mph | 0 |
| 17:00 | 78° | 0 | 19 mph | 0.01 |
| 18:00 | 74° | 1 | 16 mph | 0 |
| 19:00 | 74° | 0 | 15 mph | 0 |
Surf Conditions
Updated: Updated: 7/18/2026, 1:15:00 PM
Hourly Surf
| Time | Temp | Wave | Period | Swell | Tide |
|---|---|---|---|---|---|
| 13:00 | 67°F | 1.6 ft | 6s | → E | +1.9 ft |
| 14:00 | 67°F | 1.9 ft | 4s | → E | +3.1 ft |
| 15:00 | 67°F | 2.2 ft | 4s | ↘ SE | +3.4 ft |
| 16:00 | 67°F | 2.6 ft | 4s | ↘ SE | +2.7 ft |
| 17:00 | 67°F | 2.9 ft | 4s | ↘ SE | +0.6 ft |
| 18:00 | 66°F | 3 ft | 4s | ↘ SE | -2.2 ft |
| 19:00 | 66°F | 3.1 ft | 4s | ↘ SE | -4.5 ft |