South Yarmouth Weather

41°40'N 70°11'W

Home Harbor Resources

Current Conditions
Scattered Clouds
42°F
Feels like: 38°F
Wind Chill: 38°F Ceiling: Unl
Heat Index: 42°F Visibility: 10mi
Dew Point: 24°F Wind: 6mph
Humidity: 49% Direction: -
Pressure: 29.94" Gusts: -
Reported: 23 minutes 51 seconds ago
December 11, 2017 2:00 pm EST
Location: 41.84N 70.329W or 12 nautical miles NNW of search location of 41.665N 70.1833W.
Significant Wave Height: 1 ft
Dominant Wave Period: 3 sec
Average Period: 2.6 sec
Mean Wave Direction: NW (304°)
Water Temperature: 47°F (8.2°C)
December 11, 2017 1:50 pm EST
Location: 41.439N 70.186W or 14 nautical miles S of search location of 41.665N 70.1833W.
Wind Direction: W (270°)
Wind Speed: 14 knots
Wind Gust: 17 knots
Significant Wave Height: 2 ft
Dominant Wave Period: 4 sec
Average Period: 3.2 sec
Mean Wave Direction: W (278°)
Atmospheric Pressure: 29.95 in (1014.3 mb)
Pressure Tendency: -0.03 in (-1.0 mb)
Air Temperature: 39°F (3.8°C)
Dew Point: 28°F (-2.5°C)
Water Temperature: 44°F (6.9°C)
December 11, 2017 12:45 pm EST
Location: 41.582N 70.525W or 16 nautical miles WSW of search location of 41.665N 70.1833W.
Wind Speed: 5 knots
Atmospheric Pressure: 29.97 in (1015.0 mb)
Air Temperature: 40°F (4.2°C)
Dew Point: 23°F (-5.0°C)
Monday, December 11
6:58am / 4:10pm 12:15am / 12:52pm
Sunny
41°
32°
Day: Abundant sunshine. High 41F. Winds W at 5 to 10 mph.
Night: Mostly clear this evening then becoming cloudy after midnight. Low 32F. Winds light and variable.
Tuesday, December 12
6:58am / 4:10pm 1:17am / 1:20pm
Thundershowers
50°
28°
Day: Showers early then thundershowers developing later in the day. Snow mixing in. High around 50F. Winds SSE at 15 to 25 mph. Chance of rain 90%.
Night: Mostly cloudy. Low 28F. Winds WSW at 10 to 20 mph.
Wednesday, December 13
6:59am / 4:10pm 2:19am / 1:49pm
Partly Cloudy/Wind
32°
23°
Partly cloudy and windy. Highs in the low 30s and lows in the low 20s.
Thursday, December 14
7:00am / 4:10pm 3:18am / 2:19pm
Partly Cloudy
33°
22°
Partly cloudy. Highs in the low 30s and lows in the low 20s.
Friday, December 15
7:00am / 4:11pm 4:17am / 2:52pm
Cloudy
34°
25°
Cloudy. Highs in the mid 30s and lows in the mid 20s.
Saturday, December 16
7:01am / 4:11pm 5:14am / 3:27pm
Partly Cloudy
36°
30°
Times of sun and clouds. Highs in the mid 30s and lows in the low 30s.
Sunday, December 17
7:02am / 4:11pm 6:10am / 4:07pm
Partly Cloudy
43°
36°
Mix of sun and clouds. Highs in the low 40s and lows in the mid 30s.
Monday, December 18
7:02am / 4:12pm 7:03am / 4:50pm
Mostly Cloudy
42°
31°
Mostly cloudy. Highs in the low 40s and lows in the low 30s.
Tuesday, December 19
7:03am / 4:12pm 7:53am / 5:38pm
Mostly Cloudy
42°
28°
More clouds than sun. Highs in the low 40s and lows in the upper 20s.
Wednesday, December 20
7:04am / 4:12pm 8:38am / 6:31pm
Mostly Sunny
34°
28°
A few clouds. Highs in the mid 30s and lows in the upper 20s.
Wind Forecast
Day MondayTuesdayWednesday
MPH 7 3 0 2 6 13 17 9 7 10 14 18
W
WNW
SSW
ESE
SSE
SE
SE
SSW
WSW
WSW
WSW
W
Radar

Home Harbor Resources

Marine Forecast
Synopsis: ANZ200-120700- 116 PM EST Mon Dec 11 2017 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure will build across the waters today and tonight. Meanwhile, low pressure will approach from the Great Lakes and move across New England Tuesday. The low will head toward southern Quebec Tuesday night and in its wake westerly gales could blow across the waters through Thursday. Another low will approach from the west on Friday. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the Current Hazards link above the map on the left. $$
This Afternoon
W wind 6 to 8 kt. Mostly sunny. Seas 1 ft or less.
Tonight
Variable winds less than 5 kt becoming SE 6 to 11 kt after midnight. Increasing clouds. Seas 1 ft or less.
Tuesday
SSE wind 15 to 18 kt decreasing to 12 to 15 kt in the afternoon. Winds could gust as high as 30 kt. Rain, mainly before 3pm. Patchy fog after 11am. Seas 1 ft or less.
Tuesday Night
SSW wind 9 to 11 kt becoming W in the evening. Winds could gust as high as 27 kt. A chance of rain showers before 2am, then a chance of snow showers. Seas 1 ft or less.
Wednesday
W wind 12 to 15 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 36 kt. A chance of snow showers, mainly before 10am. Seas 1 ft or less.
Wednesday Night
W wind 18 to 22 kt, with gusts as high as 41 kt. Partly cloudy. Seas 1 ft or less.
Thursday
W wind 12 to 16 kt, with gusts as high as 27 kt. Mostly sunny. Seas 1 ft or less.
Thursday Night
WNW wind 5 to 9 kt becoming variable and less than 5 kt after midnight. A chance of snow. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming W around 6 kt in the morning. A chance of snow. Seas 1 ft or less.
Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.