Seabrook Dunes and Beach Weather Forecast
- 24
- 37
Chance Snow Showers
- 19
- 36
Mostly Cloudy
- 10
- 26
Mostly Sunny
- 26
- 32
Mostly Cloudy
- 32
- 43
Chance Rain
- 21
- 40
Chance Snow
Today 6 Dec Coastal Rockingham
Mostly cloudy. A chance of snow Showers in the Morning, then a slight chance of rain or snow Showers in the afternoon. Highs in the upper 30s. Light and variable Winds. Chance of precipitation 40 percent.
Tonight 6 Dec Coastal Rockingham
Partly cloudy in the Evening, then clearing. Lows in the lower 20s. Light and variable Winds.
Seabrook Dunes and Beach Temperature Statistics
December Temperature
Pease Air Force Base / Portsmouth (13.7 miles)
Lowest 1 December, 2025
22.5 °FAverage December
31.4 °FHighest 1 December, 2025
40.3 °F
Climate (2020–Present)
Pease Air Force Base / Portsmouth (13.7 miles)
Average Low 2020–2025
42.6 °FAverage 2020–2025
50.9 °FAverage High 2020–2025
59.4 °F