Cohasset Harbor (White Head) Weather

42°15'N 70°47'W

Home Harbor Resources

Current Conditions
Clear
30°F
Feels like: 23°F
Wind Chill: 23°F Ceiling: Unl
Heat Index: 30°F Visibility: 10mi
Dew Point: 19°F Wind: 8mph
Humidity: 64% Direction: 220° (SW)
Pressure: 29.91" Gusts: -
Reported: 11 minutes 38 seconds ago
January 19, 2018 10:50 pm EST
Location: 42.346N 70.651W or 7 nautical miles NE of search location of 42.267147008152N 70.764312744141W.
Wind Direction: SSW (210°)
Wind Speed: 16 knots
Wind Gust: 17 knots
Significant Wave Height: 2 ft
Dominant Wave Period: 10 sec
Average Period: 4.5 sec
Mean Wave Direction: ENE (72°)
Atmospheric Pressure: 29.90 in (1012.6 mb)
Pressure Tendency: -0.03 in (-0.9 mb)
Air Temperature: 34°F (1.0°C)
Water Temperature: 41°F (4.8°C)
January 19, 2018 11:30 pm EST
Location: 42.355N 71.05W or 14 nautical miles WNW of search location of 42.267147008152N 70.764312744141W.
Atmospheric Pressure: 29.88 in (1011.7 mb)
Air Temperature: 32°F (-0.1°C)
January 19, 2018 11:04 pm EST
Location: 42.523N 70.566W or 18 nautical miles NNE of search location of 42.267147008152N 70.764312744141W.
Wind Speed: 16 knots
Wind Gust: 19 knots
Significant Wave Height: 2 ft
Dominant Wave Period: 3 sec
Atmospheric Pressure: 29.88 in (1011.9 mb)
Air Temperature: 34°F (1.3°C)
Water Temperature: 38°F (3.3°C)
Friday, January 19
7:06am / 4:41pm 8:36am / 7:17pm
Mostly Clear
35°
29°
Day:
Night: Mainly clear. Low 29F. Winds SW at 10 to 15 mph.
Saturday, January 20
7:06am / 4:42pm 9:07am / 8:18pm
Partly Cloudy
49°
32°
Day: Partly cloudy. High 49F. Winds WSW at 10 to 20 mph.
Night: Mainly clear early, then a few clouds later on. Low 32F. Winds WSW at 5 to 10 mph.
Sunday, January 21
7:05am / 4:43pm 9:37am / 9:18pm
Partly Cloudy
44°
32°
Times of sun and clouds. Highs in the mid 40s and lows in the low 30s.
Monday, January 22
7:05am / 4:44pm 10:06am / 10:21pm
Cloudy
40°
38°
Cloudy. Highs in the low 40s and lows in the upper 30s.
Tuesday, January 23
7:04am / 4:46pm 10:35am / 11:25pm
Rain/Wind
49°
35°
Windy with periods of rain. Highs in the upper 40s and lows in the mid 30s.
Wednesday, January 24
7:03am / 4:47pm 11:05am / 12:01am
Mostly Sunny
40°
23°
Mostly sunny. Highs in the low 40s and lows in the low 20s.
Thursday, January 25
7:02am / 4:48pm 11:39am / 12:32am
Sunny
31°
20°
Abundant sunshine. Highs in the low 30s and lows in the low 20s.
Friday, January 26
7:01am / 4:49pm 12:18pm / 1:40am
Sunny
37°
30°
Sunshine. Highs in the upper 30s and lows in the low 30s.
Saturday, January 27
7:01am / 4:51pm 1:03pm / 2:50am
Partly Cloudy
49°
44°
Times of sun and clouds. Highs in the upper 40s and lows in the mid 40s.
Sunday, January 28
7:00am / 4:52pm 1:56pm / 3:59am
Showers
47°
40°
Chance of showers. Highs in the upper 40s and lows in the low 40s.
Wind Forecast
Day SaturdaySunday
MPH 8 10 15 15 10 8 7 4 4 4 2 2
SSW
SW
SW
WSW
WSW
WSW
W
WSW
WSW
WNW
ESE
SSE
Radar

Home Harbor Resources

Marine Forecast
...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...
Synopsis: ANZ200-201615- 1027 PM EST Fri Jan 19 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... Large high pres will build S of the waters this weekend. Low pres will pass well W of the region late Monday, but its associated front will likely bring periods of rain and gusty southerly winds late Mon into Tue, shifting to W on Wed. 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. $$
Overnight
SW wind 10 to 13 kt. Partly cloudy. Seas around 2 ft.
Saturday
W wind 16 to 19 kt decreasing to 12 to 15 kt in the afternoon. Winds could gust as high as 28 kt. Mostly cloudy, then becoming sunny during the afternoon. Seas 3 ft subsiding to 1 ft.
Saturday Night
W wind 9 to 13 kt. Partly cloudy. Seas 1 to 2 ft.
Sunday
W wind 5 to 8 kt. Mostly sunny. Seas around 1 ft.
Sunday Night
Variable winds less than 5 kt becoming WNW 5 to 7 kt in the evening. Partly cloudy. Seas around 1 ft.
Monday
NNE wind around 8 kt becoming E in the afternoon. A chance of rain, mainly after 4pm. Seas around 1 ft.
Monday Night
E wind 9 to 11 kt. Rain likely, mainly after 2am. Seas 1 to 2 ft.
Tuesday
SSE wind 11 to 15 kt becoming SSW in the afternoon. Winds could gust as high as 21 kt. Rain. Seas around 3 ft.
Tuesday Night
WSW wind around 13 kt. Partly cloudy. Seas 2 to 3 ft.
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.