Portsmouth Harbor Weather

43°5'N 70°45'W

Home Harbor Resources

Current Conditions
Overcast
50°F
Feels like: 50°F
Wind Chill: 50°F Ceiling: 25000ft
Heat Index: 50°F Visibility: 10mi
Dew Point: 32°F Wind: 15mph
Humidity: 49% Direction: 320° (NW)
Pressure: 30.13" Gusts: -
Reported: 58 minutes 49 seconds ago
December 15, 2018 2:00 pm EST
Location: 42.967N 70.623W or 5 nautical miles SE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: NW (320°)
Wind Speed: 12 knots
Wind Gust: 13 knots
Atmospheric Pressure: 30.14 in (1020.6 mb)
Pressure Tendency: -0.01 in (-0.5 mb)
Air Temperature: 49°F (9.7°C)
Dew Point: 35°F (1.9°C)
December 15, 2018 1:45 pm EST
Location: 43.059N 70.83W or 6 nautical miles WNW of search location of 43.03175685184N 70.706634521484W.
Wind Direction: W (280°)
Wind Speed: 3 knots
Air Temperature: 49°F (9.4°C)
Dew Point: 35°F (1.4°C)
December 15, 2018 2:04 pm EST
Location: 43.179N 70.426W or 15 nautical miles NE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: NE (50°)
Wind Speed: 12 knots
Wind Gust: 16 knots
Significant Wave Height: 3 ft
Dominant Wave Period: 11 sec
Atmospheric Pressure: 30.14 in (1020.8 mb)
Air Temperature: 46°F (7.5°C)
Water Temperature: 45°F (7.2°C)
Visibility: 1.6 nmi
Saturday, December 15
7:07am / 4:08pm 12:20pm / 12:01am
Partly Cloudy
52°
30°
Day: Partly cloudy. High 52F. Winds NNW at 10 to 15 mph.
Night: Partly cloudy skies. Low near 30F. Winds NNE at 5 to 10 mph.
Sunday, December 16
7:08am / 4:09pm 12:46pm / 12:05am
Cloudy
40°
32°
Day: Overcast. High near 40F. Winds NE at 10 to 20 mph.
Night: Rain showers in the evening will evolve into a more steady rain overnight. Low 32F. Winds NNE at 10 to 20 mph. Chance of rain 90%. Rainfall near a quarter of an inch.
Monday, December 17
7:08am / 4:09pm 1:12pm / 1:07am
AM Rain/Snow
40°
22°
Periods of rain and snow early. Highs in the low 40s and lows in the low 20s.
Tuesday, December 18
7:09am / 4:09pm 1:40pm / 2:11am
Sunny/Wind
28°
20°
Sunny and windy. Highs in the upper 20s and lows in the low 20s.
Wednesday, December 19
7:09am / 4:10pm 2:12pm / 3:18am
Mostly Sunny
37°
26°
Mostly sunny. Highs in the upper 30s and lows in the mid 20s.
Thursday, December 20
7:10am / 4:10pm 2:49pm / 4:28am
Partly Cloudy
42°
35°
Partly cloudy. Highs in the low 40s and lows in the mid 30s.
Friday, December 21
7:11am / 4:11pm 3:32pm / 5:38am
Rain
47°
39°
Cloudy with rain. Highs in the upper 40s and lows in the upper 30s.
Saturday, December 22
7:11am / 4:11pm 4:25pm / 6:49am
Partly Cloudy
44°
29°
Mix of sun and clouds. Highs in the mid 40s and lows in the upper 20s.
Sunday, December 23
7:11am / 4:12pm 5:27pm / 7:54am
Mostly Sunny
37°
24°
Mostly sunny. Highs in the upper 30s and lows in the mid 20s.
Monday, December 24
7:12am / 4:12pm 6:37pm / 8:53am
Partly Cloudy
34°
23°
Mix of sun and clouds. Highs in the mid 30s and lows in the low 20s.
Wind Forecast
Day SaturdaySundayMonday
MPH 10 9 8 7 9 11 13 13 14 14 12 11
NW
NNE
NNE
NNE
NE
NE
NE
NE
NE
NNE
N
NNW
Radar

Home Harbor Resources

Marine Forecast
Synopsis: ANZ100-160445- 939 AM EST Sat Dec 15 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... Winds shift to the west and decrease behind a cold front today before shifting to the north as high pressure slides east into northern Maine tonight. Low pressure emerges off the Mid Atlantic coast and tracks near Cape Cod Sunday into Sunday night with an easterly wind developing over the Gulf of Maine, shifting to the north on Monday. Winds increase Monday night as an Arctic cold front drops in from the northwest. && $$
This Afternoon
N wind around 10 kt. Mostly sunny. Seas around 1 ft.
Tonight
NE wind around 10 kt. Partly cloudy. Seas 1 ft building to 3 ft.
Sunday
ENE wind 10 to 15 kt, with gusts as high as 25 kt. Mostly cloudy. Seas 3 to 4 ft.
Sunday Night
NNE wind around 15 kt, with gusts as high as 25 kt. Rain before 4am, then rain and sleet between 4am and 5am, then rain, snow, and sleet after 5am. Seas 4 ft building to 7 ft.
Monday
N wind 10 to 15 kt becoming WNW in the afternoon. Winds could gust as high as 20 kt. Rain and snow before 10am, then a chance of rain between 10am and 11am. Seas 6 to 7 ft.
Monday Night
NW wind 15 to 18 kt increasing to 17 to 20 kt after midnight. Winds could gust as high as 30 kt. A chance of snow showers after 7pm. Seas 4 to 5 ft.
Tuesday
NW wind around 20 kt, with gusts as high as 30 kt. Mostly sunny. Seas around 3 ft.
Tuesday Night
NW wind 15 to 20 kt, with gusts as high as 30 kt. Mostly clear. Seas 1 to 2 ft.
Wednesday
WNW wind around 10 kt becoming W in the afternoon. Sunny. Seas around 1 ft.

*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.