Hammonasset Beach State Park Weather Forecast

    • 33
    • 42

    Cloudy

    • 43
    • 48

    Rain Showers Likely

    • 36
    • 57

    Rain Showers Likely

    • 41
    • 56

    Mostly Sunny

    • 42
    • 59

    Chance Rain

    • 37
    • 53

    Rain Likely

    • 30
    • 48

    Chance Rain/Snow

Today 6 Mar Southern New Haven

Cloudy. Highs in the lower 40s. Northeast Winds 5 to 10 Mph.

Tonight 6 Mar Southern New Haven

Cloudy. A slight chance of drizzle or freezing drizzle after midnight. Lows in the lower 30s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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Hammonasset Beach State Park Temperature Statistics

March Temperature

Chester, Chester Airport (8.1 miles)

  • Lowest 2 March, 2026

    15.8 °F

  • Average March

    31.2 °F

  • Highest 4 March, 2026

    53.6 °F

Climate (2021–Present)

Chester, Chester Airport (8.1 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    62.6 °F
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