Point Forecast: 21NM E Portsmouth RI
 41.59N 70.78W (Elev. 0 ft)
Last Update: 2:37 am EDT Jul 8, 2025
Tabular Forecast
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Weather ElementsMarine WeatherAviation Weather
Temperature (°F)
Dewpoint (°F)
Heat Index (°F)

Surface Wind  
Sky Cover (%)
Precipitation Potential (%)
Relative Humidity (%)

Rain
Thunder
Fog
Swell Period
Swell Hgt/Dir
Swell 2 Period
Wind Wave Height
Significant Wave Height
Freezing Spray
Ceiling Height
Visibility
Thunder Potential

48-Hour Period Starting:       Back 2 Days  

Date07/0807/09
Hour (EDT)030405060708091011121314151617181920212223000102
Surface Wind (kt)101099899101011121414131312121010109888
Wind DirSSSSWSWWSWWSWWSWSWSWSWSWSWSWSWSWSWSWSWSWSWWSWWSWWSWSW
Gust171817
Significant Wave Height (ft) 211112222223333222222111
Swell Height (ft)
Swell Dir
Swell Period (sec) 335778888876555556677777
Swell 2 Height (ft)
Swell 2 Dir
Swell 2 Period (sec) 131313131313131313121212121212131212121212121212
Wind Wave Height (ft) 111111111122222222222211

Date07/10
Hour (EDT)030405060708091011121314151617181920212223000102
Surface Wind (kt)777777777889998776655555
Wind DirSWSWSWSWWSWWSWSSWSWWSWWSWSWSSWSENNENENENEENEEEEEENE
Gust
Significant Wave Height (ft) 111111111112211111111111
Swell Height (ft)
Swell Dir
Swell Period (sec) 777777777777777666666677
Swell 2 Height (ft)
Swell 2 Dir
Swell 2 Period (sec) 101010995222222222222222455
Wind Wave Height (ft) 111111111111111111111111

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