Rockland Breakwater & Penobscot Bay, ME

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Rockland Breakwater Lighthouse in Maine
Rockland Breakwater Lighthouse in Maine - Tania Dey, CC BY-SA 3.0, via Wikimedia Commons

Today’s Forecast:

☁
43°F
High: 43° | Low: 34°
Current Temperature
Cloudy
Station: KRKD
Observed at: 7:40 pm CST on 11/12/26
Wind: 10 mph | Humidity: 70%
⚠️
Small Craft Advisory
Small Craft Advisory issued November 12 at 12:36PM EST until November 13 at 7:00PM EST by NWS Gray ME (Expires: November 13, 2026 6:00 pm)
Show Alert Details & Instructions
Description: * WHAT...Northeast winds 5 to 15 kt with gusts up to 25 kt and seas 1 to 4 ft expected. * WHERE...Penobscot Bay and Casco Bay. * WHEN...From 7 PM this evening to 7 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft. Instructions: Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Tonight:A chance of rain after 11pm. Cloudy, with a low around 34. Northeast wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Friday:A chance of rain before noon. Mostly cloudy, with a high near 43. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Friday Night:Mostly cloudy, with a low around 32. North wind 5 to 10 mph.
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Today’s Report:

⛵ Boating

Not Recommended
  12 /100

Not Recommended for boating. High near 43°F. Risk of rain later today (30%). Breezy winds (15 mph). Temperatures outside comfort limits (43°F).

  • Temp: Unfavorable weather factor
  • Rain: Marginal weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 23/100
Not Recommended for boating. High near 44°F. Low rain risk (7%). Light wind (10 mph). Temperatures outside comfort limits (44°F).

🛶 Paddling

Not Recommended
  11 /100

Not Recommended for paddling. High near 43°F. Risk of rain later today (30%). Breezy winds (15 mph). Temperatures outside comfort limits (43°F).

  • Temp: Unfavorable weather factor
  • Rain: Marginal weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 22/100
Not Recommended for paddling. High near 44°F. Low rain risk (7%). Breezy winds (10 mph). Temperatures outside comfort limits (44°F).

🐟 Fishing

Use Caution
  43 /100

Use Caution for fishing. High near 43°F. Low rain risk (30%). Breezy winds (15 mph).

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Good 81/100
Good for fishing. High near 44°F. Low rain risk (7%). Light wind (10 mph).

🎪 Outdoor Events / Activities

Not Recommended
  12 /100

Not Recommended for outdoor events / activities. High near 43°F. Risk of rain later today (30%). Breezy winds (15 mph). Temperatures outside comfort limits (43°F).

  • Temp: Unfavorable weather factor
  • Rain: Marginal weather factor
  • Wind: Marginal weather factor
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 20/100
Not Recommended for outdoor events / activities. High near 44°F. Low rain risk (7%). Light wind (10 mph). Temperatures outside comfort limits (44°F).

About Rockland Breakwater & Penobscot Bay

Rockland Breakwater & Penobscot Bay is a Maine destination for a breakwater, lighthouse, harbor, ferry, and bay recreation destination.

Make the Most of a Rockland Breakwater & Penobscot Bay Day

Match the route, launch, ferry, campground, facility, or turnaround time to wind, precipitation, temperature, water or snow conditions, road access, and daylight. Keep a shorter or more sheltered backup ready.

Weather Tips for Rockland Breakwater & Penobscot Bay

  • Check official park, land-manager, ferry, road, fire, trail, and facility notices before leaving.
  • Review tides, marine wind, fog, surf or current, cold-water exposure, ferry or launch status, and small-craft conditions before shoreline or island plans.
  • Expect mud season, black flies, thunderstorms, nor’easters, coastal fog, early snow, and rapid temperature changes where seasonally relevant.
  • Carry water, layers, navigation, sun protection, and seasonal traction or flotation appropriate to the activity.

Nearby Towns and Areas

This page can also be useful when planning outdoor time near:

  • Rockland Harbor
  • Owls Head
  • Rockport
  • Vinalhaven Ferry Terminal
  • Penobscot Bay islands
  • South Thomaston

Plan Around the Conditions

Choose the safest version of a Rockland Breakwater & Penobscot Bay day by matching the activity to current wind, precipitation, visibility, temperature, water or snow conditions, access, and daylight.

7-Day Forecast for Rockland Breakwater & Penobscot Bay

☁
43°F
High: 43° | Low: 34°
Current Temperature
Cloudy
Station: KRKD
Observed at: 7:40 pm CST on 11/12/26
Wind: 10 mph | Humidity: 70%
Fri 🌧
43° 32°
30%
Sat ⛅
45° 31°
7%
Sun ⛅
46° 31°
2%
Mon ☀
47° 30°
0%
Tue ☀
50° 35°
0%
Wed ☀
55° 37°
0%
Thu ☀
55° --°
0%

7-Day High Temperature Trend

43° Fri 45° Sat 46° Sun 47° Mon 50° Tue 55° Wed 55° Thu

7-Day Low Temperature Trend

32° Fri 31° Sat 31° Sun 30° Mon 35° Tue 37° Wed 50° Thu

📊 7-Day Outdoor Outlook

Good Fair Poor 19 Fri 20 Sat 20 Sun 20 Mon 70 Tue 100 Wed 100 Thu
Forecast data from the National Weather Service  |  Last Updated: November 12, 2026 9:47 pm CST

Rockland Breakwater & Penobscot Bay Weather by Season

Winter

Winter at Rockland Breakwater & Penobscot Bay brings cold, snow, ice, short daylight, and changing road or facility access. Storms and freeze-thaw cycles can leave roads, trails, parking areas, and exposed surfaces icy.

Spring

Spring at Rockland Breakwater & Penobscot Bay is mud season, with lingering snow, black flies, runoff, and rapidly changing temperatures. Cold water, high flow, shoreline mud, and strong wind require conservative launch decisions.

Summer

Summer at Rockland Breakwater & Penobscot Bay usually offers the broadest access, but thunderstorms, heat, insects, wildfire smoke, and sudden wind shifts still affect plans. Use a marine forecast and tide table, and account for fog, cold ocean water, surf, and small-craft conditions.

Fall

Fall at Rockland Breakwater & Penobscot Bay brings cooler air, foliage crowds, shorter daylight, hunting-season awareness, and early freezes. Coastal storms, fog, ferry changes, and strong onshore wind become increasingly important.

Key Climate Data Points

  • Annual average temperature: about 43–48°F depending on latitude and immediate marine exposure using the nearest practical regional climate context.
  • Annual snowfall: commonly 50–80 inches, with lower totals along some immediate shorelines and more inland or at elevation.
  • Warmest months: July and August are normally warmest.
  • Coolest months: January and February are typically coolest.
  • Wettest season: late fall and early winter are often wettest, with substantial local and elevation variation.
  • Driest season: midsummer is often driest, although thunderstorms remain possible.
  • Best outdoor window: June through October for broad warm-season access.