Our Proprietary 10-Day Forecast

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Current warnings over Sayville, New York
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over Sayville, New York red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over Sayville, New York red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Suffolk County, NY

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near Sayville, New York

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in Sayville, NY please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over Sayville, NY

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in Sayville, NY, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near Sayville, New York

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Suffolk County, New York

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
Get access to:
  • European ECMWF HRES
  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
See the latest forecast data as the models update.
 
F5Weather Maps

Climate Summary
(made with AI, use with caution)
Sayville, NY Climate Summary

General Climate

    •   Humid subtropical climate (Köppen: Cfa)
    •   Characterized by hot, humid summers and mild, wet winters

Temperature

    •   Average Annual Temperature

53.4°F (11.9°C)

    •   Average Summer Temperature (June-August)

73.6°F (23.1°C)

    •   Average Winter Temperature (December-February)

33.1°F (0.6°C)

    •   Record High Temperature

102°F (38.9°C)

    •   Record Low Temperature

-10°F (-23.3°C)

Precipitation

    •   Average Annual Precipitation

46.2 inches (117.3 cm)

    •   Average Monthly Precipitation (Wettest Month)

5.1 inches (13 cm) in July

    •   Average Monthly Precipitation (Driest Month)

2.9 inches (7.4 cm) in February

    •   Average Number of Rainy Days

110 days per year

Snowfall

    •   Average Annual Snowfall

22.9 inches (58.2 cm)

    •   Average Monthly Snowfall (Snowiest Month)

7.6 inches (19.3 cm) in January

Other Climate Data

    •   Average Relative Humidity

75%

    •   Average Wind Speed

10.1 mph (16.3 km/h)

    •   Average Number of Sunny Days

210 days per year

Climate Trends

    •   Over the past century, Sayville has experienced a slight increase in average annual temperatures and precipitation.
    •   The number of extreme weather events, such as heat waves and heavy rainfall, has also increased.

Climate Outlook

    •   Climate models predict that Sayville will continue to experience a warming trend in the coming decades.
    •   Precipitation patterns are expected to become more variable, with both heavier rainfall and longer dry spells.
    •   Sea levels are also projected to rise, which could lead to increased coastal flooding.

Facts & Historical Information
(made with AI, use with caution)
Natural History

    •   Sayville is home to the Connetquot River State Park Preserve, a 3,475-acre sanctuary with diverse habitats, including forests, wetlands, and tidal creeks.

    •   The area is a breeding ground for horseshoe crabs, which can be observed during their annual spawning season.

    •   Sayville's beaches are known for their abundant marine life, including clams, oysters, and blue crabs.

Science

    •   In the 19th century, Sayville was a hub for oyster farming, and the industry played a significant role in the local economy.

    •   The town is home to the Brookhaven National Laboratory, a major research facility operated by the U.S. Department of Energy.

Personalities

    •   The renowned marine biologist William Beebe spent his childhood summers in Sayville, where he developed his passion for the natural world.

    •   The inventor and industrialist Thomas Edison had a summer home in Sayville, where he conducted experiments and developed his early inventions.

Tourist Attractions
1.Fire Island National Seashore:

A 26-mile-long barrier island offering pristine beaches, hiking trails, and wildlife viewing opportunities.

2.Sayville Beach:

A popular local beach with a boardwalk, playground, and picnic areas.

3.Sayville Ferry:

A scenic ferry ride across the Great South Bay to Fire Island, providing beautiful views of the coastline and wildlife.

Nearby Cities:

West Sayville, NY
Bayport, NYBlue Point, NY
Oakdale, NYBohemia, NY
Great River, NYPatchogue, NY
North Great River, NYEast Patchogue, NY
North Patchogue, NYEast Islip, NY
Holbrook, NYIslip Terrace, NY
Ronkonkoma, NYHoltsville, NY
Islip, NYIslandia, NY
Brooklyn, NY
Queens, NYManhattan, NY
Manhattan, NYStaten Island, NY
Newark, NJJersey City, NJ
Jamaica, NYYonkers, NY
Providence, RIEast Flatbush, NY
East New York, NY