Portsmouth Harbor Weather

43°5'N 70°45'W
Current Conditions
Overcast
52°F
Feels like: 52°F
Wind Chill: 52°F Ceiling: 100ft
Heat Index: 52°F Visibility: 0.5mi
Dew Point: 52°F Wind: 3mph
Humidity: 100% Direction: 320° (NW)
Pressure: 29.97" Gusts: -
Reported: 40 minutes 29 seconds ago
May 25, 2016 12:00 am EDT
Location: 42.967N 70.623W or 5 nautical miles SE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: NNE (30°)
Wind Speed: 6 knots
Wind Gust: 7 knots
Atmospheric Pressure: 29.97 in (1014.8 mb)
Pressure Tendency: +0.00 in (+0.0 mb)
Air Temperature: 50°F (9.9°C)
Dew Point: 50°F (9.9°C)
May 24, 2016 11:45 pm EDT
Location: 43.059N 70.83W or 6 nautical miles WNW of search location of 43.03175685184N 70.706634521484W.
Wind Direction: ENE (60°)
Wind Speed: 1 knots
Atmospheric Pressure: 30.00 in (1016.0 mb)
Air Temperature: 53°F (11.9°C)
Dew Point: 53°F (11.9°C)
May 25, 2016 12:04 am EDT
Location: 43.181N 70.428W or 15 nautical miles NE of search location of 43.03175685184N 70.706634521484W.
Wind Direction: NNE (20°)
Wind Speed: 4 knots
Wind Gust: 4 knots
Significant Wave Height: 4 ft
Dominant Wave Period: 8 sec
Atmospheric Pressure: 29.96 in (1014.6 mb)
Air Temperature: 49°F (9.6°C)
Water Temperature: 50°F (9.9°C)
Visibility: 0.5 nmi
Tuesday, May 24
5:11am / 8:09pm 10:29pm / 7:32am
Foggy
57°
51°
Day:
Night: Areas of fog. Low 51F. Winds light and variable.
Wednesday, May 25
5:10am / 8:09pm 11:15pm / 8:24am
Partly Cloudy
81°
59°
Day: Intervals of clouds and sunshine. High 81F. Winds S at 5 to 10 mph.
Night: Mostly clear skies. Low 59F. Winds WNW at 5 to 10 mph.
Thursday, May 26
5:09am / 8:10pm 11:57pm / 9:22am
Mostly Sunny
75°
54°
Plenty of sun. Highs in the mid 70s and lows in the mid 50s.
Friday, May 27
5:08am / 8:11pm 11:59pm / 10:23am
Partly Cloudy
71°
58°
Mix of sun and clouds. Highs in the low 70s and lows in the upper 50s.
Saturday, May 28
5:08am / 8:12pm 12:35am / 11:28am
Partly Cloudy
79°
57°
Mix of sun and clouds. Highs in the upper 70s and lows in the upper 50s.
Sunday, May 29
5:07am / 8:13pm 1:11am / 12:34pm
Mostly Cloudy
64°
51°
Mostly cloudy. Highs in the mid 60s and lows in the low 50s.
Monday, May 30
5:07am / 8:14pm 1:46am / 1:43pm
Cloudy
63°
55°
Mostly cloudy. Highs in the low 60s and lows in the mid 50s.
Tuesday, May 31
5:06am / 8:15pm 2:19am / 2:54pm
Partly Cloudy
73°
55°
Mix of sun and clouds. Highs in the low 70s and lows in the mid 50s.
Wednesday, June 1
5:06am / 8:15pm 2:54am / 4:06pm
Mostly Sunny
69°
52°
More sun than clouds. Highs in the upper 60s and lows in the low 50s.
Thursday, June 2
5:05am / 8:16pm 3:32am / 5:20pm
Mostly Sunny
66°
52°
Mostly sunny. Highs in the mid 60s and lows in the low 50s.
Wind Forecast
Day WednesdayThursday
MPH 2 1 6 9 8 7 4 2 1 8 8 6
WNW
S
S
SSE
WSW
W
NW
NW
WNW
SSE
SE
SE
Radar
Marine Forecast
Synopsis: LOW PRES IN THE GULF OF MAINE WILL WEAKEN AND DISSIPATE LATE TONIGHT. A COLD FRONT WILL DROP SOUTH THROUGH THE REGION WED NIGHT. A NARROW RIDGE OF HIGH PRES WILL BUILD OVER THE AREA WED NIGHT THEN HOLD OVER THE REGION ON THU AS A WARM FRONT APPROACHES FROM THE WEST. THE WARM FRONT WILL STALL OVER THE REGION THU NIGHT AND FRI AND WILL FINALLY PUSH EAST OF THE REGION ON SAT.
Overnight
Variable winds 5 kt or less. Areas of drizzle after 3am. Areas of fog. Seas around 3 ft.
Wednesday
SSW wind 5 to 10 kt. Areas of drizzle before 8am. Areas of fog before 8am. Seas around 2 ft.
Wednesday Night
WSW wind 5 to 10 kt becoming WNW after midnight. Partly cloudy. Seas around 2 ft.
Thursday
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Thursday Night
Variable winds 5 kt or less. A chance of showers after 3am. Seas 1 to 2 ft.
Friday
SE wind 5 to 10 kt. Mostly cloudy. Seas 1 to 2 ft.
Friday Night
Variable winds 5 kt or less. Mostly cloudy. Seas 2 to 3 ft.
Saturday
Variable winds 5 kt or less. A chance of showers. Seas around 2 ft.
Saturday Night
Variable winds 5 kt or less. A chance of showers. Seas around 2 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.