Plum Island Beach, NH
Beach Alerts
High Tide Alert
High Tide Alert: Extreme high tide at 2:27 PM — beach access very limited
Surf Caution
Surf Caution: Strong waves expected from 12 PM-1 PM — not ideal for kids (9s wave period)
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.
Plan Your Visit
Beach Overview
Amenities
Activities & Rentals
Beachgoers Reviews
Average Rating
There are no reviews yet.
Weather Forecast
Updated: 6/3/2026, 11:00:00 AM
Hourly
| Time | Air Temp | UV | Wind | Rain |
|---|---|---|---|---|
| 11:00 | 73° | 6 | 9 mph | 0 |
| 12:00 | 76° | 7 | 9 mph | 0 |
| 13:00 | 77° | 8 | 6 mph | 0 |
| 14:00 | 78° | 7 | 4 mph | 0 |
| 15:00 | 78° | 7 | 2 mph | 0 |
| 16:00 | 78° | 6 | 2 mph | 0 |
| 17:00 | 76° | 4 | 7 mph | 0 |
Surf Conditions
Updated: Updated: 6/3/2026, 11:00:00 AM
Hourly Surf
| Time | Temp | Wave | Period | Swell | Tide |
|---|---|---|---|---|---|
| 11:00 | 55°F | 1.9 ft | 8s | → E | -1.3 ft |
| 12:00 | 56°F | 1.8 ft | 9s | → E | +0.4 ft |
| 13:00 | 56°F | 1.8 ft | 9s | → E | +1.2 ft |
| 14:00 | 57°F | 1.8 ft | 8s | → E | +1.4 ft |
| 15:00 | 57°F | 1.8 ft | 8s | → E | +1.0 ft |
| 16:00 | 57°F | 2 ft | 7s | → E | -0.2 ft |
| 17:00 | 56°F | 2 ft | 7s | → E | -2.1 ft |