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Now · 2:04 PM

Grand Manan Weather & Hourly Forecast

Canada · New Brunswick

Partly cloudy
20°C
Partly cloudy
Feels like: 17°C
💧 Humidity 82% 🌡 Pressure 1002 hPa 💨 Wind 27 km/h 👁 Visibility 14.1 km Clouds 38% ☀️ UV index 5.0 · Moderate 🌅 Sunrise 🌇 Sunset

Hourly Forecast for Grand Manan

Today
Mostly sunny · 3:00 PM Mostly sunny
20° 💧 0.0 mm 💨 30 km/h H 81%1001 hPa
Sunny · 6:00 PM Sunny
20° 💧 None 💨 25 km/h H 71%1001 hPa
Partly cloudy night · 9:00 PM Partly cloudy night
20° 💧 None 💨 21 km/h H 57%1004 hPa
Tomorrow
Mostly clear night · 12:00 AM Mostly clear night
17° 💧 None 💨 18 km/h H 65%1006 hPa
Partly cloudy night · 3:00 AM Partly cloudy night
15° 💧 None 💨 18 km/h H 71%1006 hPa
Clear night · 6:00 AM Clear night
14° 💧 None 💨 20 km/h H 71%1008 hPa
Sunny · 9:00 AM Sunny
15° 💧 None 💨 18 km/h H 69%1009 hPa
Sunny · 12:00 PM Sunny
17° 💧 None 💨 16 km/h H 53%1010 hPa
Sunny · 3:00 PM Sunny
19° 💧 None 💨 16 km/h H 47%1009 hPa
Sunny · 6:00 PM Sunny
18° 💧 None 💨 12 km/h H 56%1009 hPa
Clear night · 9:00 PM Clear night
16° 💧 None 💨 18 km/h H 56%1012 hPa
Saturday
Clear night · 12:00 AM Clear night
14° 💧 None 💨 14 km/h H 64%1014 hPa
Clear night · 3:00 AM Clear night
13° 💧 None 💨 14 km/h H 70%1016 hPa
Clear night · 6:00 AM Clear night
12° 💧 None 💨 11 km/h H 81%1017 hPa
Sunny · 9:00 AM Sunny
14° 💧 0.0 mm 💨 8 km/h H 78%1019 hPa
Mostly sunny · 12:00 PM Mostly sunny
17° 💧 None 💨 4 km/h H 62%1020 hPa

In Grand Manan and, more broadly, across the province of New Brunswick: This afternoon, a mix of sun and cloud is expected across the region, with temperatures ranging from about 19 to 26 degrees Celsius in many areas. Some spots may experience light showers or brief rain, with a maximum probability of around 20%, and total rainfall up to 0.3 mm. Winds will generally be from the west at speeds up to 23 km/h, with gusts reaching approximately 49 km/h. As evening approaches, conditions are likely to remain variable, with the possibility of scattered showers in parts of the area. Overall, the weather will stay relatively mild and unsettled, with no significant weather hazards anticipated.

15-Day Weather Outlook for Grand Manan

TomorrowTomorrow Partly cloudy Partly cloudy 20°/14° 💧 None 💨 22 km/h
Saturday, Sep 12Sat Sep 12 Mostly sunny Mostly sunny 18°/11° 💧 None 💨 18 km/h
Sunday, Sep 13Sun Sep 13 Overcast Overcast 18°/13° 💧 11 mm 💨 29 km/h
Monday, Sep 14Mon Sep 14 Light rain Light rain 18°/16° 💧 1.1 mm 💨 26 km/h
Tuesday, Sep 15Tue Sep 15 Partly cloudy Partly cloudy 16°/12° 💧 None 💨 24 km/h
Wednesday, Sep 16Wed Sep 16 Overcast Overcast 15°/12° 💧 8.7 mm 💨 23 km/h
Thursday, Sep 17Thu Sep 17 Light rain Light rain 17°/15° 💧 0.3 mm 💨 30 km/h
Friday, Sep 18Fri Sep 18 Moderate rain Moderate rain 17°/16° 💧 2.4 mm 💨 39 km/h
Saturday, Sep 19Sat Sep 19 Overcast Overcast 16°/12° 💧 2.8 mm 💨 23 km/h
Sunday, Sep 20Sun Sep 20 Sunny Sunny 15°/11° 💧 None 💨 17 km/h
Monday, Sep 21Mon Sep 21 Mostly sunny Mostly sunny 15°/11° 💧 None 💨 19 km/h
Tuesday, Sep 22Tue Sep 22 Mostly sunny Mostly sunny 16°/11° 💧 None 💨 11 km/h
Wednesday, Sep 23Wed Sep 23 Mostly cloudy Mostly cloudy 16°/ 💧 0.0 mm 💨 8 km/h
Thursday, Sep 24Thu Sep 24 Overcast Overcast 16°/11° 💧 0.0 mm 💨 12 km/h
Friday, Sep 25Fri Sep 25 Mostly sunny Mostly sunny 18°/16° 💧 None 💨 25 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Grand Manan

Vertical axis: °C · Color based on temperature
Mostly sunny at 3:00 PM
68° Today 3:00 PM
Sunny at 4:00 PM
68° 4:00 PM
Sunny at 5:00 PM
68° 5:00 PM
Sunny at 6:00 PM
69° 6:00 PM
Mostly sunny at 7:00 PM
70° Today 7:00 PM
Mostly cloudy night at 8:00 PM
69° 8:00 PM
Partly cloudy night at 9:00 PM
68° 9:00 PM
Partly cloudy night at 10:00 PM
65° 10:00 PM
Partly cloudy night at 11:00 PM
63° Today 11:00 PM
Mostly clear night at 12:00 AM
62° 12:00 AM
Mostly cloudy night at 1:00 AM
60° 1:00 AM
Mostly cloudy night at 2:00 AM
59° 2:00 AM
Partly cloudy night at 3:00 AM
59° Tomorrow 3:00 AM
Clear night at 4:00 AM
58° 4:00 AM
Clear night at 5:00 AM
58° 5:00 AM
Clear night at 6:00 AM
57° 6:00 AM
Sunny at 7:00 AM
57° Tomorrow 7:00 AM
Sunny at 8:00 AM
57° 8:00 AM
Sunny at 9:00 AM
58° 9:00 AM
Sunny at 10:00 AM
60° 10:00 AM
Sunny at 11:00 AM
61° Tomorrow 11:00 AM
Sunny at 12:00 PM
63° 12:00 PM
Sunny at 1:00 PM
64° 1:00 PM
Sunny at 2:00 PM
65° 2:00 PM
Sunny at 3:00 PM
66° Tomorrow 3:00 PM
Sunny at 4:00 PM
66° 4:00 PM
Sunny at 5:00 PM
66° 5:00 PM
Sunny at 6:00 PM
65° 6:00 PM
Sunny at 7:00 PM
63° Tomorrow 7:00 PM
Clear night at 8:00 PM
62° 8:00 PM
Clear night at 9:00 PM
61° 9:00 PM
Clear night at 10:00 PM
59° 10:00 PM
Clear night at 11:00 PM
58° Tomorrow 11:00 PM
Clear night at 12:00 AM
57° 12:00 AM
Clear night at 1:00 AM
56° 1:00 AM
Clear night at 2:00 AM
56° 2:00 AM
Clear night at 3:00 AM
55° Saturday 3:00 AM
Clear night at 4:00 AM
54° 4:00 AM
Clear night at 5:00 AM
54° 5:00 AM
Clear night at 6:00 AM
53° 6:00 AM
Clear night at 7:00 AM
53° Saturday 7:00 AM
Sunny at 8:00 AM
54° 8:00 AM
Sunny at 9:00 AM
57° 9:00 AM
Sunny at 10:00 AM
60° 10:00 AM
Sunny at 11:00 AM
62° Saturday 11:00 AM
Mostly sunny at 12:00 PM
63° 12:00 PM
Sunny at 1:00 PM
64° 1:00 PM
Sunny at 2:00 PM
63° 2:00 PM
Mostly sunny at 3:00 PM
63° Saturday 3:00 PM
Mostly sunny at 4:00 PM
62° 4:00 PM
Mostly cloudy at 5:00 PM
61° 5:00 PM
Partly cloudy at 6:00 PM
60° 6:00 PM
Sunny at 7:00 PM
58° Saturday 7:00 PM
Clear night at 8:00 PM
57° 8:00 PM
Mostly clear night at 9:00 PM
56° 9:00 PM
Mostly clear night at 6:00 AM
57° 6:00 AM
Mostly cloudy at 9:00 AM
60° Sunday 9:00 AM
Overcast at 12:00 PM
64° 12:00 PM
Overcast at 3:00 PM
64° 3:00 PM
Overcast at 6:00 PM
61° 6:00 PM
Overcast night at 9:00 PM
60° Sunday 9:00 PM
Light rain at 12:00 AM
60° 12:00 AM
Overcast night at 3:00 AM
60° 3:00 AM
Overcast night at 6:00 AM
60° 6:00 AM
Overcast at 9:00 AM
62° Monday 9:00 AM
Overcast at 12:00 PM
63° 12:00 PM
Mostly cloudy at 3:00 PM
64° 3:00 PM
Mostly sunny at 6:00 PM
65° 6:00 PM
Clear night at 9:00 PM
61° Monday 9:00 PM
Clear night at 12:00 AM
58° 12:00 AM
Clear night at 3:00 AM
55° 3:00 AM
Clear night at 6:00 AM
53° 6:00 AM
Sunny at 9:00 AM
54° Tuesday 9:00 AM
Sunny at 12:00 PM
58° 12:00 PM
Partly cloudy at 3:00 PM
61° 3:00 PM
Partly cloudy at 6:00 PM
60° 6:00 PM
Overcast night at 9:00 PM
54° Tuesday 9:00 PM
Mostly clear night at 12:00 AM
53° 12:00 AM
Partly cloudy night at 3:00 AM
53° 3:00 AM
Partly cloudy at 9:00 AM
54° 9:00 AM
Mostly cloudy at 3:00 PM
59° Wednesday 3:00 PM
Mostly clear night at 9:00 PM
63° 9:00 PM
Light rain at 3:00 AM
59° 3:00 AM
Overcast at 9:00 AM
59° 9:00 AM
Light rain at 3:00 PM
60° Thursday 3:00 PM
Light rain at 9:00 PM
61° 9:00 PM
Overcast night at 3:00 AM
61° 3:00 AM
Sunny at 9:00 AM
62° 9:00 AM
Moderate rain at 3:00 PM
63° Friday 3:00 PM
Overcast night at 9:00 PM
62° 9:00 PM
Partly cloudy night at 3:00 AM
58° 3:00 AM
Sunny at 9:00 AM
56° 9:00 AM
Sunny at 3:00 PM
53° Saturday 3:00 PM
Clear night at 9:00 PM
59° 9:00 PM
Clear night at 3:00 AM
56° 3:00 AM
Sunny at 9:00 AM
52° 9:00 AM
Sunny at 3:00 PM
56° Sunday 3:00 PM
Clear night at 9:00 PM
60° 9:00 PM
Clear night at 3:00 AM
55° 3:00 AM
Mostly sunny at 9:00 AM
52° 9:00 AM
Sunny at 3:00 PM
56° Monday 3:00 PM
Mostly clear night at 9:00 PM
61° 9:00 PM
Clear night at 3:00 AM
55° 3:00 AM
Sunny at 9:00 AM
52° 9:00 AM
Sunny at 3:00 PM
55° Tuesday 3:00 PM
Partly cloudy night at 9:00 PM
60° 9:00 PM
Partly cloudy night at 3:00 AM
52° 3:00 AM
Mostly cloudy at 9:00 AM
48° 9:00 AM
Mostly cloudy at 3:00 PM
50° Wednesday 3:00 PM
Mostly clear night at 9:00 PM
61° 9:00 PM
Overcast night at 3:00 AM
53° 3:00 AM
Overcast at 9:00 AM
52° 9:00 AM
Overcast at 3:00 PM
53° Thursday 3:00 PM
Mostly clear night at 9:00 PM
64° 9:00 PM
Mostly cloudy night at 3:00 AM
61° 3:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Grand Manan

Hourly forecast · Updated every 2 hours
Moderate
Nearest forecast value 3:00 PM
PM2.5 Fine particles Fair 12,3µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 19,7µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Moderate 107,9µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,6µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Grand Manan

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 5,9Moderate 😐Moderate
Tomorrow UV 5,2Moderate 🙂Fair
Saturday UV 5,6Moderate 😐Moderate
Sunday UV 4,4Moderate 😐Moderate
Monday UV 6,0High 🙂Fair
Tuesday UV 4,0Moderate Unavailable
Wednesday UV 6,0High Unavailable
Hourly UV index today
3:00 PMUV 3,5 4:00 PMUV 2,0 5:00 PMUV 0,8 6:00 PMUV 0,2 7:00 PMUV 0,0
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Grand Manan

Vertical axis: km/h · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in km/h. Today 3:00 PM 4:00 PM 5:00 PM 6:00 PM Today 7:00 PM 8:00 PM 9:00 PM 10:00 PM Today 11:00 PM 12:00 AM 1:00 AM 2:00 AM Tomorrow 3:00 AM 4:00 AM 5:00 AM 6:00 AM Tomorrow 7:00 AM 8:00 AM 9:00 AM 10:00 AM Tomorrow 11:00 AM 12:00 PM 1:00 PM 2:00 PM Tomorrow 3:00 PM 4:00 PM 5:00 PM 6:00 PM Tomorrow 7:00 PM 8:00 PM 9:00 PM 10:00 PM Tomorrow 11:00 PM 12:00 AM 1:00 AM 2:00 AM Saturday 3:00 AM 4:00 AM 5:00 AM 6:00 AM Saturday 7:00 AM 8:00 AM 9:00 AM 10:00 AM Saturday 11:00 AM 12:00 PM 1:00 PM 2:00 PM Saturday 3:00 PM 4:00 PM 5:00 PM 6:00 PM Saturday 7:00 PM 8:00 PM 9:00 PM 6:00 AM Sunday 9:00 AM 12:00 PM 3:00 PM 6:00 PM Sunday 9:00 PM 12:00 AM 3:00 AM 6:00 AM Monday 9:00 AM 12:00 PM 3:00 PM 6:00 PM Monday 9:00 PM 12:00 AM 3:00 AM 6:00 AM Tuesday 9:00 AM 12:00 PM 3:00 PM 6:00 PM Tuesday 9:00 PM 12:00 AM 3:00 AM 9:00 AM Wednesday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Thursday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Friday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Saturday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Sunday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Monday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Tuesday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Wednesday 3:00 PM 9:00 PM 3:00 AM 9:00 AM Thursday 3:00 PM 9:00 PM 3:00 AM
Sustained wind Max gusts
NIGHT SKY · GRAND MANAN, NEW BRUNSWICK

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

100/100Best-hour score
BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 9:28 PM–5:20 AM
Cloud cover 0% Real hourly forecast for the best viewing hour.
Moonlight 0% New Moon · Moon below the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 84° high at the best hour.
Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min81%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 5–SEP 21
September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak
ACTIVE NOW
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
UPCOMING
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

Forecast data for Grand Manan were last refreshed today at 2:04 PM. The current forecast period extends through 12/09/2026 at 12:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.