Portsmouth Harbor Weather

43°5'N 70°45'W
Current Conditions
Overcast
44°F
Feels like: 42°F
Wind Chill: 42°F Ceiling: 8000ft
Heat Index: 44°F Visibility: 10mi
Dew Point: 35°F Wind: 5mph
Humidity: 71% Direction: 310° (NW)
Pressure: 29.57" Gusts: -
Reported: 30 minutes 19 seconds ago
April 27, 2015 6:00 am EDT
Location: 42.967N 70.623W or 5 nautical miles SE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: NW (320°)
Wind Speed: 10 knots
Wind Gust: 11 knots
Atmospheric Pressure: 29.57 in (1001.3 mb)
Pressure Tendency: +0.00 in (+0.0 mb)
Air Temperature: 46°F (7.9°C)
Dew Point: 35°F (1.7°C)
April 27, 2015 4:45 am EDT
Location: 43.059N 70.83W or 6 nautical miles WNW of search location of 43.03175685184N 70.706634521484W.
Wind Direction: W (280°)
Wind Speed: 4 knots
Atmospheric Pressure: 29.53 in (1000.0 mb)
Air Temperature: 46°F (7.6°C)
Dew Point: 39°F (3.9°C)
April 27, 2015 5:04 am EDT
Location: 43.181N 70.428W or 15 nautical miles NE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: WNW (300°)
Wind Speed: 6 knots
Wind Gust: 8 knots
Significant Wave Height: 2 ft
Dominant Wave Period: 8 sec
Atmospheric Pressure: 29.53 in (1000.0 mb)
Air Temperature: 44°F (6.8°C)
Water Temperature: 44°F (6.4°C)
Visibility: 1.6 nmi
Monday, April 27
5:42am / 7:39pm 1:36pm / 2:30am
PM Showers
55°
41°
Day: Considerable cloudiness. Occasional rain showers this afternoon. High near 55F. Winds NNW at 5 to 10 mph. Chance of rain 50%.
Night: Light rain early. Then remaining cloudy. Low 41F. Winds N at 10 to 15 mph. Chance of rain 60%.
Tuesday, April 28
5:41am / 7:40pm 2:32pm / 3:01am
AM Clouds/PM Sun
61°
44°
Day: Cloudy skies early, followed by partial clearing. High 61F. Winds NNW at 10 to 20 mph.
Night: A few clouds. Low 44F. Winds NNW at 10 to 15 mph.
Wednesday, April 29
5:40am / 7:41pm 3:30pm / 3:30am
Partly Cloudy
54°
42°
Mix of sun and clouds. Highs in the mid 50s and lows in the low 40s.
Thursday, April 30
5:38am / 7:42pm 4:26pm / 3:57am
Mostly Cloudy
55°
41°
More clouds than sun. Highs in the mid 50s and lows in the low 40s.
Friday, May 1
5:37am / 7:44pm 5:25pm / 4:25am
Rain/Wind
47°
40°
Rain and wind. Highs in the upper 40s and lows in the low 40s.
Saturday, May 2
5:35am / 7:45pm 6:23pm / 4:55am
AM Showers
52°
42°
Morning showers. Highs in the low 50s and lows in the low 40s.
Sunday, May 3
5:34am / 7:46pm 7:24pm / 5:26am
AM Showers
57°
46°
Morning showers. Highs in the upper 50s and lows in the mid 40s.
Monday, May 4
5:33am / 7:47pm 8:23pm / 6:01am
Mostly Sunny
65°
50°
Plenty of sun. Highs in the mid 60s and lows in the low 50s.
Tuesday, May 5
5:31am / 7:48pm 9:23pm / 6:40am
Mostly Sunny
65°
50°
Plenty of sun. Highs in the mid 60s and lows in the low 50s.
Wednesday, May 6
5:30am / 7:49pm 10:19pm / 7:25am
Showers
64°
48°
Showers. Highs in the mid 60s and lows in the upper 40s.
Wind Forecast
Day MondayTuesday
MPH 4 4 6 9 11 10 14 13 14 12 7 5
NW
NNW
NNW
NNW
N
N
N
N
NW
NW
NNW
NNW
Radar
Marine Forecast
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY
Synopsis: LOW PRESSURE WILL ROTATE WESTWARD FROM THE CANADIAN MARITIMES INTO THE GULF OF MAINE TODAY. THE LOW WILL MOVE OUT TO SEA ON TUESDAY. HIGH PRESSURE STARTS TO PUSH IN FROM THE WEST ON WEDNESDAY. A COASTAL LOW PRESSURE WILL MOVE OFF THE EAST COAST LATE IN THE WEEK...TRACKING SOUTH OF THE WATERS.
Today
NW wind 5 to 10 kt. Showers likely, mainly after 4pm. Seas around 1 ft.
Tonight
N wind around 10 kt. Showers likely before 1am. Seas 1 to 2 ft.
Tuesday
N wind 10 to 15 kt, with gusts as high as 20 kt. Mostly cloudy. Seas 2 to 3 ft.
Tuesday Night
NW wind 5 to 10 kt. Partly cloudy. Seas 2 to 3 ft.
Wednesday
Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.
Wednesday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.
Thursday
Variable winds 5 kt or less. Partly sunny. Seas around 2 ft.
Thursday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 1 to 2 ft.
Friday
NE wind around 10 kt. A chance of showers. Seas around 3 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.