Marine Weather and Tide Forecast for Southwest Harbor, ME
 | Sunrise 4:49 AM Sunset 8:19 PM Moonrise 1:09 AM Moonset 1:53 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
ANZ052 Intra Coastal Waters From Schoodic Point, Me To Stonington, Me- 234 Am Edt Tue Jun 9 2026
Rest of tonight - SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave detail: sw 1 foot at 4 seconds and E 1 foot at 5 seconds.
Tue - W winds 5 to 10 kt, becoming sw 10 to 15 kt in the afternoon. Seas 1 to 2 ft. Wave detail: sw 1 foot at 4 seconds and E 1 foot at 5 seconds.
Tue night - SW winds 5 to 10 kt, becoming W after midnight. Seas 1 to 2 ft. Wave detail: S 1 foot at 6 seconds.
Wed - SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave detail: S 2 ft at 7 seconds.
Wed night - S winds 5 to 10 kt. Seas 1 to 2 ft. Wave detail: S 2 ft at 6 seconds. A chance of showers.
Thu - SE winds around 5 kt. Seas around 2 ft. Wave detail: S 2 ft at 6 seconds. A chance of showers in the morning.
Thu night - E winds around 5 kt. Seas around 2 ft.
Fri - E winds around 5 kt, becoming se in the afternoon. Seas around 2 ft.
Fri night - SE winds around 5 kt. Seas 2 to 3 ft. A chance of showers after midnight.
Sat - S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
Sat night - SW winds around 5 kt. Seas 1 to 2 ft.
ANZ005 234 Am Edt Tue Jun 9 2026
Synopsis for eastport me to stonington me out 25 nm - High pressure will drift S of the waters today. Weak low pres moves towards the area from the W Wed and cross the area Thu, followed by weak high pres on Fri. A cold front will approach the waters Fri night into Sat.
7 Day Forecast for Marine Location Near Southwest Harbor, ME
NEW! Add second zone forecast
| Bass Harbor Click for Map Tue -- 01:08 AM EDT Moonrise Tue -- 04:49 AM EDT Sunrise Tue -- 05:42 AM EDT 9.43 feet High Tide Tue -- 11:27 AM EDT 0.82 feet Low Tide Tue -- 01:53 PM EDT Moonset Tue -- 06:15 PM EDT 9.94 feet High Tide Tue -- 08:15 PM EDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Bass Harbor, Mount Desert Island, Maine, Tide feet
| 12 am |
| 1.7 |
| 1 am |
| 2.9 |
| 2 am |
| 4.6 |
| 3 am |
| 6.5 |
| 4 am |
| 8.2 |
| 5 am |
| 9.2 |
| 6 am |
| 9.4 |
| 7 am |
| 8.5 |
| 8 am |
| 6.6 |
| 9 am |
| 4.2 |
| 10 am |
| 2.1 |
| 11 am |
| 0.9 |
| 12 pm |
| 1 |
| 1 pm |
| 1.9 |
| 2 pm |
| 3.6 |
| 3 pm |
| 5.7 |
| 4 pm |
| 7.7 |
| 5 pm |
| 9.2 |
| 6 pm |
| 9.9 |
| 7 pm |
| 9.6 |
| 8 pm |
| 8.1 |
| 9 pm |
| 5.9 |
| 10 pm |
| 3.4 |
| 11 pm |
| 1.7 |
| Casco Passage Click for Map Flood direction 86 true Ebb direction 284 true Tue -- 01:09 AM EDT Moonrise Tue -- 02:21 AM EDT 0.60 knots Max Flood Tue -- 04:50 AM EDT Sunrise Tue -- 05:40 AM EDT -0.00 knots Slack Tue -- 08:35 AM EDT -0.59 knots Max Ebb Tue -- 11:35 AM EDT 0.00 knots Slack Tue -- 01:53 PM EDT Moonset Tue -- 02:44 PM EDT 0.71 knots Max Flood Tue -- 06:12 PM EDT -0.00 knots Slack Tue -- 08:16 PM EDT Sunset Tue -- 09:02 PM EDT -0.63 knots Max Ebb Tide / Current data from XTide NOT FOR NAVIGATION |
Casco Passage, east end, Blue Hill Bay, Maine Current, knots
| 12 am |
| 0.2 |
| 1 am |
| 0.4 |
| 2 am |
| 0.6 |
| 3 am |
| 0.6 |
| 4 am |
| 0.4 |
| 5 am |
| 0.2 |
| 6 am |
| -0.1 |
| 7 am |
| -0.3 |
| 8 am |
| -0.5 |
| 9 am |
| -0.6 |
| 10 am |
| -0.4 |
| 11 am |
| -0.1 |
| 12 pm |
| 0.1 |
| 1 pm |
| 0.4 |
| 2 pm |
| 0.7 |
| 3 pm |
| 0.7 |
| 4 pm |
| 0.6 |
| 5 pm |
| 0.3 |
| 6 pm |
| 0.1 |
| 7 pm |
| -0.2 |
| 8 pm |
| -0.5 |
| 9 pm |
| -0.6 |
| 10 pm |
| -0.5 |
| 11 pm |
| -0.3 |
FXUS61 KCAR 090618 AFDCAR
Area Forecast Discussion National Weather Service Caribou ME 218 AM EDT Tue Jun 9 2026
WHAT HAS CHANGED
- Lowered dew points today with a well mixed boundary layer to 800mb.
- Made adjustments lowering high temperatures Downeast on Wednesday with a stronger southerly seabreeze developing.
- Confidence has increased in the above normal temperatures this week.
KEY MESSAGES
1) Above normal temperatures are expected through this weekend with shower chances returning later Wednesday into Thursday.
DISCUSSION
KEY MESSAGE 1...Above normal temperatures are expected through this weekend with shower chances returning later Wednesday into Thursday.
KEY MESSAGE 1 DESCRIPTION...
A broad upper level ridge is expected to remain in place across the Hudson Bay into eastern Canada and the northeast US this week, leading to persistent above normal temperatures with daytime highs generally in the upper 70s to well into the 80s through this weekend. Dew points will generally remain comfortable in the 50s, lessening heat related impacts. Heat risk is generally in the minor category, suggesting any heat related issues will be mostly confined to vulnerable populations. The warmest day closer to the Downeast coast will be today before winds become lighter and out of the south with the daily sea breeze on Wednesday and beyond.
A weak disturbance cutting underneath the ridge near the US- Canada border will provide moisture for cloud cover and showers late Wednesday into early Thursday. The greatest chances will be across western areas, where a rumble of thunder is possible but confidence is low. The combination of poor mid level lapse rates and minimal instability with MLCAPEs less than 500 j/kg will preclude much of a thunder risk in the CWA A few more chances of thunderstorms late week into next weekend.
AVIATION /06Z TUESDAY THROUGH SATURDAY/
Rest of Tonight...VFR. High cigs FEW-SCT150+ will work in from north to south from northern terms over the next few hours.
Winds light and variable except SSW at BHB 5-10kt.
Tuesday...VFR with high cigs. W-NW winds 5-15kt. Few gusts up to 20kt.
Tuesday night...VFR. Winds light and variable.
Wednesday...VFR. Light and variable winds becoming S 5-10kt in the late morning to afternoon.
Thursday-Thursday night: VFR, with MVFR or lower possible due to rain showers at southern terminals early. Light S winds.
Friday: Mainly VFR, with a slight chance of a shower. SE winds 5-10 kts.
Friday night-Saturday: MVFR or lower possible. S-SW winds G15-20KT possible.
MARINE
Winds and seas will remain below advisory criteria on the coastal ocean waters through Saturday. The waters will see winds of 20 kt or less and seas of 5 ft or less during this time frame. Wind may briefly gust up to 25kt on the waters 35-60nm offshore Wednesday evening.
Water temperatures have moderated slightly over the past couple weeks to between 46 and 50 degrees.
CAR WATCHES/WARNINGS/ADVISORIES
ME...None.
MARINE...None.
Area Forecast Discussion National Weather Service Caribou ME 218 AM EDT Tue Jun 9 2026
WHAT HAS CHANGED
- Lowered dew points today with a well mixed boundary layer to 800mb.
- Made adjustments lowering high temperatures Downeast on Wednesday with a stronger southerly seabreeze developing.
- Confidence has increased in the above normal temperatures this week.
KEY MESSAGES
1) Above normal temperatures are expected through this weekend with shower chances returning later Wednesday into Thursday.
DISCUSSION
KEY MESSAGE 1...Above normal temperatures are expected through this weekend with shower chances returning later Wednesday into Thursday.
KEY MESSAGE 1 DESCRIPTION...
A broad upper level ridge is expected to remain in place across the Hudson Bay into eastern Canada and the northeast US this week, leading to persistent above normal temperatures with daytime highs generally in the upper 70s to well into the 80s through this weekend. Dew points will generally remain comfortable in the 50s, lessening heat related impacts. Heat risk is generally in the minor category, suggesting any heat related issues will be mostly confined to vulnerable populations. The warmest day closer to the Downeast coast will be today before winds become lighter and out of the south with the daily sea breeze on Wednesday and beyond.
A weak disturbance cutting underneath the ridge near the US- Canada border will provide moisture for cloud cover and showers late Wednesday into early Thursday. The greatest chances will be across western areas, where a rumble of thunder is possible but confidence is low. The combination of poor mid level lapse rates and minimal instability with MLCAPEs less than 500 j/kg will preclude much of a thunder risk in the CWA A few more chances of thunderstorms late week into next weekend.
AVIATION /06Z TUESDAY THROUGH SATURDAY/
Rest of Tonight...VFR. High cigs FEW-SCT150+ will work in from north to south from northern terms over the next few hours.
Winds light and variable except SSW at BHB 5-10kt.
Tuesday...VFR with high cigs. W-NW winds 5-15kt. Few gusts up to 20kt.
Tuesday night...VFR. Winds light and variable.
Wednesday...VFR. Light and variable winds becoming S 5-10kt in the late morning to afternoon.
Thursday-Thursday night: VFR, with MVFR or lower possible due to rain showers at southern terminals early. Light S winds.
Friday: Mainly VFR, with a slight chance of a shower. SE winds 5-10 kts.
Friday night-Saturday: MVFR or lower possible. S-SW winds G15-20KT possible.
MARINE
Winds and seas will remain below advisory criteria on the coastal ocean waters through Saturday. The waters will see winds of 20 kt or less and seas of 5 ft or less during this time frame. Wind may briefly gust up to 25kt on the waters 35-60nm offshore Wednesday evening.
Water temperatures have moderated slightly over the past couple weeks to between 46 and 50 degrees.
CAR WATCHES/WARNINGS/ADVISORIES
ME...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| ATGM1 - 8413320 - Bar Harbor, ME | 13 mi | 45 min | W 16G | 30.06 | ||||
| 44034 - Buoy I0103 - Eastern Maine Shelf | 16 mi | 63 min | 46°F | |||||
| MDRM1 - Mt Desert Rock, ME | 22 mi | 63 min | SSW 13G | 51°F | 30.12 | |||
| 44033 - Buoy F0103 - West Penobscot Bay | 37 mi | 63 min | 55°F | |||||
| MISM1 - Matinicus Rock, ME | 41 mi | 33 min | WSW 12G | 55°F | 30.14 | 52°F |
Wind History for Bar Harbor, ME
toggle option: (graph/table)
Link to 5 hour of 5 minute data for KBHB
Terminal Aerodrome Forecast (TAF) for KBHB
Wind History Graph: BHB
(wind in knots)
GEOS Local Image of north east
Edit Hide
Portland, ME,
NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE