Portland Harbor Weather

43°39'N 70°15'W

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Current Conditions
Few Clouds
25°F
Feels like: 19°F
Wind Chill: 19°F Ceiling: Unl
Heat Index: 25°F Visibility: 10mi
Dew Point: 3°F Wind: 5mph
Humidity: 39% Direction: -
Pressure: 30.55" Gusts: -
Reported: 34 minutes 25 seconds ago
December 13, 2018 11:42 am EST
Location: 43.656N 70.246W or 0 nautical miles NE of search location of 43.653714N 70.248728W.
Air Temperature: 24°F (-4.3°C)
Water Temperature: 38°F (3.2°C)
December 13, 2018 11:50 am EST
Location: 43.525N 70.141W or 9 nautical miles SSE of search location of 43.653714N 70.248728W.
Wind Speed: 0 knots
Wind Gust: 2 knots
Significant Wave Height: 2 ft
Dominant Wave Period: 11 sec
Average Period: 5.8 sec
Mean Wave Direction: ESE (113°)
Atmospheric Pressure: 30.55 in (1034.5 mb)
Pressure Tendency: +0.00 in (+0.0 mb)
Air Temperature: 22°F (-5.3°C)
Dew Point: 11°F (-11.4°C)
Water Temperature: 44°F (6.9°C)
December 13, 2018 11:00 am EST
Location: 43.337N 70.549W or 23 nautical miles SW of search location of 43.653714N 70.248728W.
Wind Direction: NW (310°)
Wind Speed: 2 knots
Air Temperature: 22°F (-5.5°C)
Dew Point: 8°F (-13.6°C)
Thursday, December 13
7:06am / 4:04pm 11:25am / 10:02pm
Mostly Sunny
27°
21°
Day: Lots of sunshine. High 27F. Winds light and variable.
Night: Mainly clear. Low 21F. Winds light and variable.
Friday, December 14
7:06am / 4:04pm 11:53am / 11:02pm
Partly Cloudy
40°
34°
Day: Partly cloudy. High near 40F. Winds SW at 5 to 10 mph.
Night: Cloudy. Low 34F. Winds SW at 5 to 10 mph.
Saturday, December 15
7:07am / 4:05pm 12:19pm / 12:01am
AM Clouds/PM Sun
46°
26°
Morning clouds followed by afternoon sun. Highs in the mid 40s and lows in the mid 20s.
Sunday, December 16
7:08am / 4:05pm 12:44pm / 12:03am
Mostly Cloudy
38°
29°
Considerable cloudiness. Highs in the upper 30s and lows in the upper 20s.
Monday, December 17
7:08am / 4:05pm 1:10pm / 1:05am
PM Rain/Snow Showers
38°
24°
Late day rain and snow showers. Highs in the upper 30s and lows in the mid 20s.
Tuesday, December 18
7:09am / 4:06pm 1:38pm / 2:10am
AM Clouds/PM Sun
29°
16°
Morning clouds followed by afternoon sun. Highs in the upper 20s and lows in the mid teens.
Wednesday, December 19
7:10am / 4:06pm 2:09pm / 3:17am
Sunny
32°
21°
Abundant sunshine. Highs in the low 30s and lows in the low 20s.
Thursday, December 20
7:10am / 4:06pm 2:45pm / 4:27am
Partly Cloudy
37°
26°
Partly cloudy. Highs in the upper 30s and lows in the mid 20s.
Friday, December 21
7:11am / 4:07pm 3:29pm / 5:38am
Rain/Snow
40°
26°
Mix of rain and snow. Highs in the low 40s and lows in the mid 20s.
Saturday, December 22
7:11am / 4:07pm 4:22pm / 6:49am
Partly Cloudy
36°
23°
Partly cloudy. Highs in the mid 30s and lows in the low 20s.
Wind Forecast
Day ThursdayFridaySaturday
MPH 2 2 2 3 2 5 7 5 7 6 5 6
SSE
SW
SW
WSW
SW
WSW
SSW
SSW
SSW
SSW
SW
WSW
Radar

Home Harbor Resources

Marine Forecast
Synopsis: ANZ100-140630- 1120 AM EST Thu Dec 13 2018 .Synopsis for Stonington ME to Merrimack River MA out to 25 NM... High pressure will crest over the region tonight and will settle offshore to the southeast on Thursday. High pressure will hold off the coast Thursday night through Friday. A weak warm front will cross the region Friday night. High pressure will build in from the northwest Saturday and will hold over the region through Sunday as low pressure passes to the south. Low pressure will intensify south of the Gulf of Maine on Monday as it moves northeast into the maritimes. && $$
This Afternoon
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Tonight
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.
Friday
SSW wind 5 to 10 kt. Partly sunny. Seas around 1 ft.
Friday Night
SW wind around 10 kt. Mostly cloudy. Seas 1 to 2 ft.
Saturday
WSW wind 5 to 10 kt becoming N in the afternoon. Partly sunny. Seas 1 to 2 ft.
Saturday Night
N wind 5 to 10 kt. Mostly clear. Seas 1 to 2 ft.
Sunday
Variable winds 5 kt or less. Mostly sunny. Seas around 2 ft.
Sunday Night
Variable winds 5 kt or less. A chance of snow. Seas 2 ft building to 4 ft.
Monday
NNE wind 5 to 10 kt becoming N in the afternoon. Mostly cloudy. Seas around 4 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.