30.5183’ N, 81.4533’ W

Nassau River entrance, FL

84°
H -°
L 76°
ESE
10mph
Low tide
10:06 pm

Nassau River entrance, FL Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Sat
Oct 3
Rain
Close Hourly
-º / 76º 93% SSE 10 mph 87%
6pm Mostly Cloudy 84º 15% ESE 10 mph 77%
7pm Mostly Cloudy 83º 24% ESE 9 mph 79%
8pm Partly Cloudy 82º 24% ESE 9 mph 81%
9pm Light Rain 79º 93% SE 6 mph 89%
10pm Rain 78º 89% SE 6 mph 90%
11pm Rain 78º 79% SSE 6 mph 90%
Sun
Oct 4
Thunderstorms
View Hourly
84º / 75º 67% SE 7 mph 84%
12am Showers 78º 42% SSE 6 mph 91%
1am Few Showers 78º 30% SSE 6 mph 90%
2am Cloudy 78º 15% SSE 6 mph 90%
3am Cloudy 77º 13% SSE 5 mph 92%
4am Cloudy 77º 10% SSE 4 mph 91%
5am Cloudy 77º 10% S 3 mph 88%
6am Mostly Cloudy 77º 14% S 3 mph 89%
7am Mostly Cloudy 77º 16% S 3 mph 90%
8am Mostly Cloudy 78º 15% S 3 mph 88%
9am Mostly Cloudy 79º 15% S 4 mph 88%
10am Partly Cloudy 80º 22% SSE 4 mph 85%
11am Showers 82º 43% SSE 5 mph 82%
12pm Showers 83º 43% SE 6 mph 81%
1pm Showers 84º 39% SE 6 mph 77%
2pm Showers 84º 37% ESE 7 mph 77%
3pm Isolated Thunderstorms 82º 31% ESE 7 mph 79%
4pm Cloudy 81º 24% ESE 7 mph 83%
5pm Scattered Thunderstorms 80º 56% ESE 6 mph 86%
6pm Thunderstorms 80º 68% ESE 5 mph 89%
7pm Thunderstorms 79º 61% ESE 4 mph 88%
8pm Showers 78º 45% SE 3 mph 90%
9pm Showers 78º 53% ESE 3 mph 91%
10pm Rain 77º 60% SSE 4 mph 92%
11pm Showers 77º 40% ESE 4 mph 92%
Mon
Oct 5
Rain
View Hourly
79º / 74º 74% NNE 8 mph 90%
12am Showers 77º 35% SSE 4 mph 93%
1am Showers 77º 47% SSE 3 mph 94%
2am Showers 76º 51% SE 4 mph 93%
3am Cloudy 76º 24% SE 4 mph 94%
4am Showers 76º 36% ESE 3 mph 93%
5am Cloudy 77º 24% W 3 mph 90%
6am Showers 77º 40% NNE 4 mph 88%
7am Showers 77º 38% NNW 4 mph 88%
8am Showers 77º 42% NW 4 mph 89%
9am Showers 77º 45% NW 4 mph 90%
10am Rain 77º 62% NNE 5 mph 91%
11am Rain 77º 70% N 5 mph 91%
12pm Rain 78º 66% N 6 mph 90%
1pm Showers 78º 54% NNE 7 mph 88%
2pm Rain 78º 62% NNE 7 mph 88%
3pm Rain 77º 71% NE 7 mph 89%
4pm Rain 77º 71% NE 8 mph 92%
5pm Rain 77º 67% NE 8 mph 91%
Tue
Oct 6
Thundershowers 78º / 74º 96% NE 12 mph 88%
Wed
Oct 7
Rain 78º / 73º 84% NE 16 mph 85%
Thu
Oct 8
Showers 80º / 74º 50% NE 15 mph 79%
Fri
Oct 9
Rain 80º / 75º 65% ENE 13 mph 78%
Sat
Oct 10
Thunderstorms 80º / 75º 66% ENE 12 mph 83%

Weather Radar for Nassau River entrance, FL See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Nassau River entrance, FL

This Afternoon
High : 82ºF
E wind around 9 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Tonight
Low : 76ºF
E wind around 8 kt. A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 4am. Seas 1 ft or less.
Sunday
High : 83ºF
Variable winds less than 5 kt becoming ESE 5 to 7 kt in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 9am. Seas 1 ft or less.
Sunday Night
Low : 75ºF
Variable winds 5 kt or less. Showers and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 2am, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.
Monday
High : 77ºF
Variable winds less than 5 kt becoming NNE around 6 kt in the morning. Showers and possibly a thunderstorm. Seas 1 ft or less.
Monday Night
Low : 74ºF
NE wind around 8 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Tuesday
High : 77ºF
NE wind 11 to 21 kt, with gusts as high as 27 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Tuesday Night
Low : 73ºF
NE wind 21 to 24 kt. Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Seas 1 ft or less.
Wednesday
High : 76ºF
NE wind 20 to 22 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Seas 3 ft subsiding to 1 ft or less.

NOAA Buoy Data Near Nassau River entrance, FL See Map

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    Wind Speed Forecast for Nassau River entrance, FL

    SaturdaySundayMonday
    Wind Speed (MPH) 1066347544457
    10pm2am6am10am2pm6pm10pm2am6am10am2pm6pm
    MPH 1066347544457
    DIR ESESESSESSSEESEESESSESENNENNENNE

    Current Weather Conditions In Nassau River entrance, FL

    As Of: 28 minutes ago

    • 84ºF
    • 94ºF
    • 10mph
    • 0º (ESE)
    • 10mph
    • Mostly Cloudy
    • 6mi
    • 30.01"
    • 77%
    • 0ºF

    The weather right now in Nassau River entrance, FL is Mostly Cloudy. The current temperature is 84°F, and the expected high and low for today, Saturday, October 3, 2026, are -° high temperature and 76°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the East Southeast. The wind is gusting to 10 mph. With the wind and the atmosphere the temperature feels like 94° Fahrenheit. Expected precipitation is 15 percent, with current humidity at 77 percent, and air pressure at 30.01 in. Visibility is 6 nautical miles. There are 2 current weather alert(s).

    Weather Alerts
    Special Marine Warning - 6:20pm Sat Oct 3 2026

    The National Weather Service in Jacksonville has issued a

    * Special Marine Warning for...
    Coastal waters from Fernandina Beach to St. Augustine FL out 20
    NM...
    Coastal waters from St. Augustine to Flagler Beach FL out 20 NM...

    * Until 715 PM EDT.

    * At 620 PM EDT, a strong thunderstorm was located over Crescent
    Beach, or 8 nm south of Saint Augustine, moving northwest at 15
    knots.

    HAZARD...Wind gusts 34 knots or greater.

    SOURCE...Radar.

    IMPACT...Small craft could be damaged in briefly higher winds and
    suddenly higher waves.

    * Locations impacted include...
    Dorothy Louise Barge, Nine Mile Reef, Saint Augustine, Saint
    Augustine Beach, Crescent Beach, Butler Beach, Vilano Beach,
    Marineland, South Ponte Vedra Beach, Guana River State Park, and
    Palm Valley.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Move to safe harbor until hazardous weather passes. If your vessel is
    caught offshore, immediately secure for heavy weather. Ensure all
    crew members are wearing USCG approved Type I life jackets and
    nonessential crew are below decks. Deploy jack lines and harnesses if
    available. Check life saving equipment, including batteries on
    handheld radios, for readiness.

    &&

    HAIL...0.00IN;
    WIND...>34KTS

    Special Marine Warning - 6:20pm Sat Oct 3 2026

    The National Weather Service in Jacksonville has issued a

    * Special Marine Warning for...
    Coastal waters from Fernandina Beach to St. Augustine FL out 20
    NM...
    Coastal waters from St. Augustine to Flagler Beach FL out 20 NM...

    * Until 715 PM EDT.

    * At 620 PM EDT, a strong thunderstorm was located over Crescent
    Beach, or 8 nm south of Saint Augustine, moving northwest at 15
    knots.

    HAZARD...Wind gusts 34 knots or greater.

    SOURCE...Radar.

    IMPACT...Small craft could be damaged in briefly higher winds and
    suddenly higher waves.

    * Locations impacted include...
    Dorothy Louise Barge, Nine Mile Reef, Saint Augustine, Saint
    Augustine Beach, Crescent Beach, Butler Beach, Vilano Beach,
    Marineland, South Ponte Vedra Beach, Guana River State Park, and
    Palm Valley.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Move to safe harbor until hazardous weather passes. If your vessel is
    caught offshore, immediately secure for heavy weather. Ensure all
    crew members are wearing USCG approved Type I life jackets and
    nonessential crew are below decks. Deploy jack lines and harnesses if
    available. Check life saving equipment, including batteries on
    handheld radios, for readiness.

    &&

    HAIL...0.00IN;
    WIND...>34KTS