Maine · Coastal fishing forecast

Portland, Maine Coast fishing forecast today

Current conditions plus a 7-day fishing outlook for Portland, Maine Coast, including Fishing Score, wind, pressure, clouds, rain chance and moon phase.

8.7/10
Excellent
Current Fishing Score

Weather-based index from the inputs available right now. It is a conditions summary, not a catch prediction.

100% weather data coverageFull inputs
Air temperature
70°F
Wind
3 mph S
Pressure
29.87 inHg
Nearby NWS observation
Cloud cover
44%
Rain chance
1%
Moon
Waxing Crescent
Water temp
61.3°F
NOAA observation
Wave height
Calm
NWS grid: 0.0 ft · 8 sec
Gusts
7 mph
Weather data updated: Aug 19, 2026, 6:12 AM EDT
Plan the week

Portland, Maine Coast 7-day fishing forecast

Compare day-level Fishing Scores with wind, rain risk, pressure and temperatures for the next seven days.

Forecast data coverageDaily weather-score coverage is 72%. NWS forecast pressure is unavailable for these periods, so the daily scores are partial.
Best available weather score · partialToday · 8.1/10
Today
Wednesday, Aug 19
8.1/10
Partial
Mostly Sunny then Patchy Fog
75°64°
Wind5 mph SRain6%Clouds42%Moon40%
Thu
Thursday, Aug 20
8.1/10
Partial
Patchy Fog
77°61°
Wind5 mph WRain4%Clouds57%Moon50%
Fri
Friday, Aug 21
7.3/10
Partial
Sunny
75°60°
Wind5 mph SSERain2%Clouds14%Moon61%
Sat
Saturday, Aug 22
7.7/10
Partial
Mostly Sunny then Slight Chance Rain Showers
71°60°
Wind7 mph NERain49%Clouds45%Moon71%
Sun
Sunday, Aug 23
7.8/10
Partial
Chance Rain Showers
72°62°
Wind8 mph ESERain47%Clouds71%Moon80%
Mon
Monday, Aug 24
7.9/10
Partial
Mostly Sunny
75°61°
Wind7 mph SWRain28%Clouds37%Moon88%
Tue
Tuesday, Aug 25
8.0/10
Partial
Sunny
75°60°
Wind7 mph WSWRain5%Clouds24%Moon94%

The large Current Fishing Score above uses current conditions and, on eligible river pages, can include a conservative USGS streamflow penalty. The seven daily cards remain weather-only because this site does not predict future river flow. Cards marked “Partial” use less than 90% of the weighted weather inputs.

Portland, Maine Coast fishing conditions overview

The current weather inputs produce a excellent weather-based Fishing Score. Broken to mostly cloudy skies can extend low-light feeding.

Estimated activity windows: 5:06 AM–7:21 AM and 6:10 PM–8:25 PM local time. These are dawn/dusk windows, not guaranteed bite times.

Best fishing time today: estimated windows

The first estimated window runs from 5:06 AM–7:21 AM, around sunrise at 5:51 AM. The second runs from 6:10 PM–8:25 PM, around sunset at 7:40 PM. Lower light can change visibility and fish positioning, but actual feeding periods vary by species, season and water conditions.

Portland, Maine Coast fishing: structure, seasons and local conditions

Casco Bay coastline with islands, ledges and tidal shoreline fishing. For fishing decisions, useful local reference areas include ledges and sharp depth changes, together with island points, saddles and nearby breaks. Those features are more informative than treating the whole forecast area as one uniform piece of water. Portland, Maine Coast is driven by moving coastal water, so tide stage and current direction can change a spot even when wind and sky conditions are nearly unchanged. Channels, points and protected edges should be read together with the local tide cycle.

Maine has a pronounced warm-up and cool-down cycle. Spring can pull activity toward warming shallows or current edges; midsummer often increases the value of depth, shade, current or cooler water; and fall cooling can broaden the usable zone again. Those shifts matter differently to Striped bass and Mackerel, so recent conditions are more useful than assuming the same pattern all season. For Portland, Maine Coast, the useful comparison is between the forecast and the actual tide/current setup around ledges and sharp depth changes; island points, saddles and nearby breaks; and bay edges and protected water, not the score by itself.

Common targets at Portland, Maine Coast include Striped bass, Mackerel, and Pollock. They do not use depth, current and cover in exactly the same way, so the Fishing Score remains a conditions index rather than a species-specific bite prediction. This page has a mapped NOAA coastal station, so tide predictions and supported observations can be added when the current NOAA product is available.

What to watch in today's conditions

Wind

Current wind is about 3 mph from S, with gusts near 7 mph. Compare exposed water with protected shorelines and inlets because the same wind can produce very different surface conditions.

Waves

The NWS marine grid currently reports calm conditions at the forecast point (0.0 ft). Local wave conditions can still differ between exposed and sheltered water.

Barometric pressure

Barometric pressure is about 29.87 inHg. Pressure is one part of the Fishing Score and is read together with wind, cloud cover and precipitation.

Moon phase and light

The moon is currently in the Waxing Crescent phase with approximately 38% illumination. Lunar illumination has a smaller weight than the main weather factors.

Target species

Striped bassMackerelPollock

Always verify current state fishing regulations, seasons, bag limits, licensing requirements and location-specific closures before fishing.

How this forecast is calculated

The Fishing Score starts with National Weather Service weather data: pressure 28%, wind 24%, cloud cover 18%, precipitation probability 18% and lunar illumination 12%. Missing weather factors are never treated as zero; partial weather results are pulled toward a neutral 5/10 according to the missing weight. On eligible river pages, a separate conservative USGS flow check can only reduce the current score when streamflow is unusually far from the long-term seasonal median or changing rapidly. It never increases the score.

Quick answers

Portland, Maine Coast fishing forecast FAQ

What is the Fishing Score for Portland, Maine Coast today?

The current Fishing Score is 8.7 out of 10 with 100% weighted data coverage. The weather inputs used by the score are currently complete.

What is the best fishing time at Portland, Maine Coast today?

The page highlights estimated low-light windows of 5:06 AM–7:21 AM and 6:10 PM–8:25 PM local time, centered around sunrise and sunset. They are planning windows, not guaranteed bite times.

What fish are commonly targeted at Portland, Maine Coast?

Common target species listed for Portland, Maine Coast include Striped bass, Mackerel, Pollock. Seasons, legal limits and local closures can change, so always verify current regulations before fishing.

What weather factors are used for Portland, Maine Coast?

The Fishing Score uses barometric pressure and trend, wind, cloud cover, precipitation probability and moon illumination. Missing inputs are excluded rather than treated as zero.

Are tide predictions available for Portland, Maine Coast?

Yes. This page currently includes NOAA tide predictions from the mapped coastal station.