Seabrook Dunes and Beach Weather Forecast

    • 55
    • 73

    Mostly Sunny

    • 60
    • 73

    Chance Rain Showers

    • 65
    • 79

    Slight Chance Rain Showers

    • 57
    • 81

    Chance Rain Showers

    • 53
    • 70

    Slight Chance Rain Showers

    • 51
    • 69

    Mostly Sunny

Today 3 Sep Coastal Rockingham

Sunny. Highs in the upper 70s. Southeast Winds around 10 Mph.

Tonight 3 Sep Coastal Rockingham

Mostly clear. Patchy fog. Lows in the mid 50s. South Winds around 10 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Seabrook Dunes and Beach Temperature Statistics

September Temperature

Pease Air Force Base / Portsmouth (13.7 miles)

  • Lowest 1 September, 2025

    54.5 °F

  • Average September

    65.7 °F

  • Highest 1 September, 2025

    77 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (13.7 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.4 °F
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