Home › New Brunswick › Grand Manan
Weather in Grand Manan
New Brunswick, 96 m · continuously updated
Grand Manan Sar Cs (2 km) · 12 °C · ECCC 21:00
- Wind
- –
- Humidity
- –
- Rain ahead
- –
- Sunset
- –
Temperature · last 4 and next 28 hours
Grand Manan weather: the next 24 hours
Updated hourly.
Grand Manan 14-day forecast
Two-week trend.
Sun and golden hours
Sunrise –, golden light until –
Sunset –, golden light from –
–
Air quality
European index, modelled by Copernicus (CAMS).
UV index
Daily maximum — protection advised from 3.
Freezing level
Snow settles about 300 m below it.
Around Grand Manan
Neighbouring towns, as the crow flies.
Official weather warnings
No active warning for Grand Manan.
Updated 03 Nov 01:13.
Data Source: Environment and Climate Change Canada, under the Data Services End-use Licence. Warnings are shown unaltered; this site is not endorsed by Environment and Climate Change Canada.
Is there an active weather warning for Grand Manan?
No active warning for Grand Manan.
Latest measurement near Grand Manan
Measured at Grand Manan Sar Cs, 2 km away from Grand Manan, November 2, 21:00 AST. This Environment and Climate Change Canada weather station is at an elevation of 75 m (New Brunswick). These are measured values, not a forecast.
| Temperature | 12.5 °C |
|---|---|
| Wind | 10 km/h W |
| Gusts, last hour | — |
| Precipitation, last hour | 0.0 mm |
| Humidity | 76 % |
| Pressure (sea level) | 1021 hPa |
Past 24 hours: low 8.3 °C, high 15.0 °C, 0.0 mm of precipitation.
Grand Manan lies at about 96 m; the station is at 75 m.
Latest measurements from the Canadian weather stations
Data Source: Environment and Climate Change Canada. Reports are published as measured, without quality control, and may contain errors or gaps. Not an official product of the Government of Canada and not endorsed by it. Data Services End-use Licence
Today in Grand Manan
- No washing outside today: rain, or a risk of rain, covers the hours when it could dry. How it is calculated
- Best time to air the house: between 21:00 and 23:00. The outdoor dew point drops to 5.6 °C; once warmed to 20 °C, that air holds only 39 % humidity, against 50 % in a typical home: opening the windows dries the house. How it is calculated
- Garden: 10.3 mm of rain expected within 48 h, against a need of 2.6 mm. No need to water, the rain will do it. How it is calculated
Calculated from Open-Meteo forecasts of 2026-11-02 20:13 (local time): model values, not measurements. All of today's advice
7-day forecast for Grand Manan
Today (Monday 2 Nov) in Grand Manan: overcast, 8 to 14 °C, precipitation 0.0 mm (4 %), wind up to 19 km/h. Tomorrow: heavy drizzle, 8 to 12 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Today | overcast | 8 °C | 14 °C | 0.0 mm | 19 km/h |
| Tomorrow | heavy drizzle | 8 °C | 12 °C | 2.9 mm | 20 km/h |
| Wed 4 Nov | light rain | 8 °C | 11 °C | 7.4 mm | 33 km/h |
| Thu 5 Nov | overcast | 10 °C | 11 °C | 0.0 mm | 32 km/h |
| Fri 6 Nov | drizzle | 10 °C | 11 °C | 4.0 mm | 26 km/h |
| Sat 7 Nov | showers | 7 °C | 11 °C | 24.2 mm | 35 km/h |
| Sun 8 Nov | overcast | 4 °C | 9 °C | 0.0 mm | 34 km/h |
Tomorrow's weather in Grand Manan
Tomorrow, Tuesday 3 Nov, in Grand Manan: heavy drizzle, from 8 to 12 °C, 2.9 mm of precipitation (probability 60 %), wind up to 20 km/h.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 00:00 |  overcast | 12 °C | 0.0 mm | 5 % | 10 km/h |
| 03:00 | overcast | 11 °C | 0.0 mm | 26 % | 9 km/h |
| 06:00 | overcast | 10 °C | 0.0 mm | 44 % | 8 km/h |
| 09:00 | overcast | 10 °C | 0.0 mm | 33 % | 13 km/h |
| 12:00 | overcast | 9 °C | 0.0 mm | 18 % | 19 km/h |
| 15:00 | overcast | 8 °C | 0.0 mm | 21 % | 19 km/h |
| 18:00 | overcast | 8 °C | 0.0 mm | 45 % | 18 km/h |
| 21:00 |  light drizzle | 8 °C | 0.4 mm | 54 % | 16 km/h |
Frequently asked questions
Will it rain tomorrow in Grand Manan?
Yes: 2.9 mm expected, probability 60 %.
How warm will it be tomorrow in Grand Manan?
Between 8 and 12 °C.
The weekend
This weekend in Grand Manan: Saturday showers, 7 to 11 °C, Sunday overcast, 4 to 9 °C.
| Day | Weather | Min | Max | Precip. | Wind |
|---|---|---|---|---|---|
| Sat 7 Nov |  showers | 7 °C | 11 °C | 24.2 mm | 35 km/h |
| Sun 8 Nov | overcast | 4 °C | 9 °C | 0.0 mm | 34 km/h |
Hour by hour
The next 48 hours in Grand Manan, hour by hour: temperature from 8 to 12 °C, 10.3 mm of rain expected.
| Hour | Weather | Temp. | Precip. | Chance | Wind |
|---|---|---|---|---|---|
| 21:00 |  sunny | 11 °C | 0.0 mm | 2 % | 14 km/h |
| 22:00 | overcast | 11 °C | 0.0 mm | 2 % | 12 km/h |
| 23:00 | overcast | 12 °C | 0.0 mm | 4 % | 11 km/h |
| 00:00 | overcast | 12 °C | 0.0 mm | 5 % | 10 km/h |
| 01:00 | overcast | 12 °C | 0.0 mm | 9 % | 9 km/h |
| 02:00 | overcast | 12 °C | 0.0 mm | 15 % | 8 km/h |
| 03:00 | overcast | 11 °C | 0.0 mm | 26 % | 9 km/h |
| 04:00 | overcast | 11 °C | 0.0 mm | 25 % | 10 km/h |
| 05:00 | drizzle | 10 °C | 0.7 mm | 37 % | 10 km/h |
| 06:00 | overcast | 10 °C | 0.0 mm | 44 % | 8 km/h |
| 07:00 | overcast | 10 °C | 0.0 mm | 37 % | 6 km/h |
| 08:00 | overcast | 10 °C | 0.0 mm | 31 % | 8 km/h |
| 09:00 | overcast | 10 °C | 0.0 mm | 33 % | 13 km/h |
| 10:00 |  fog | 10 °C | 0.0 mm | 18 % | 14 km/h |
| 11:00 | overcast | 9 °C | 0.0 mm | 19 % | 17 km/h |
| 12:00 | overcast | 9 °C | 0.0 mm | 18 % | 19 km/h |
| 13:00 | overcast | 8 °C | 0.0 mm | 21 % | 20 km/h |
| 14:00 | overcast | 8 °C | 0.0 mm | 21 % | 19 km/h |
| 15:00 | overcast | 8 °C | 0.0 mm | 21 % | 19 km/h |
| 16:00 | overcast | 8 °C | 0.0 mm | 19 % | 19 km/h |
| 17:00 | overcast | 8 °C | 0.0 mm | 26 % | 18 km/h |
| 18:00 | overcast | 8 °C | 0.0 mm | 45 % | 18 km/h |
| 19:00 | drizzle | 8 °C | 0.7 mm | 42 % | 17 km/h |
| 20:00 | heavy drizzle | 8 °C | 1.1 mm | 60 % | 16 km/h |
| 21:00 | light drizzle | 8 °C | 0.4 mm | 54 % | 16 km/h |
| 22:00 | overcast | 8 °C | 0.0 mm | 41 % | 13 km/h |
| 23:00 | overcast | 8 °C | 0.0 mm | 38 % | 13 km/h |
| 00:00 | light drizzle | 8 °C | 0.4 mm | 27 % | 13 km/h |
| 01:00 | light drizzle | 8 °C | 0.4 mm | 32 % | 12 km/h |
| 02:00 | overcast | 8 °C | 0.0 mm | 25 % | 12 km/h |
| 03:00 | overcast | 8 °C | 0.0 mm | 31 % | 14 km/h |
| 04:00 | overcast | 8 °C | 0.0 mm | 31 % | 13 km/h |
| 05:00 | light drizzle | 8 °C | 0.4 mm | 39 % | 14 km/h |
| 06:00 | light drizzle | 8 °C | 0.4 mm | 41 % | 14 km/h |
| 07:00 | drizzle | 9 °C | 0.7 mm | 47 % | 14 km/h |
| 08:00 | light rain | 9 °C | 1.4 mm | 49 % | 14 km/h |
| 09:00 | light rain | 9 °C | 1.4 mm | 39 % | 15 km/h |
| 10:00 | heavy drizzle | 9 °C | 1.1 mm | 39 % | 15 km/h |
| 11:00 | drizzle | 10 °C | 0.7 mm | 39 % | 17 km/h |
| 12:00 | drizzle | 10 °C | 0.5 mm | 39 % | 23 km/h |
| 13:00 | fog | 10 °C | 0.0 mm | 39 % | 26 km/h |
| 14:00 | fog | 10 °C | 0.0 mm | 39 % | 30 km/h |
| 15:00 | overcast | 10 °C | 0.0 mm | 20 % | 33 km/h |
| 16:00 | overcast | 10 °C | 0.0 mm | 20 % | 31 km/h |
| 17:00 | mostly sunny | 10 °C | 0.0 mm | 20 % | 28 km/h |
| 18:00 | overcast | 11 °C | 0.0 mm | 20 % | 26 km/h |
| 19:00 | overcast | 11 °C | 0.0 mm | 20 % | 22 km/h |
| 20:00 | overcast | 11 °C | 0.0 mm | 20 % | 18 km/h |
Location of Grand Manan
Grand Manan lies at 96 m, 42 m above the average of the 107 places we cover in New Brunswick (54 m). That makes it the 19th highest of the 107. The main town, Moncton, lies 222 km to the north-east. The nearest places we cover are Eastern Charlotte (45 km to the north), Pennfield (45 km to the north), Saint Andrews (46 km to the north-west) and Fundy Shores (62 km to the north-east). With about 2,595 inhabitants according to GeoNames, Grand Manan is the 88th largest of the 107 places we cover in New Brunswick.
Today is 6.7 °C above the November normal (7.3 °C).
Climate of Grand Manan: 1991–2020 normals
In Grand Manan, August is typically the warmest month (up to 18.1 °C on average), while January is the coldest at -6.8 °C. December sees the most rain, with around 146 mm.
By season (average highs, 1991–2020 normals): winter 0.9 °C and 359 mm of rain, spring 6.3 °C and 336 mm, summer 16.7 °C and 288 mm, autumn 11.6 °C and 377 mm. The wettest season is autumn (28 % of the annual total), the driest summer (21 %).
| Max T (°C) | Min T (°C) | Rainfall (mm) | Rainy days | |
|---|---|---|---|---|
| January | -0.2 | -6.8 | 114 | 12 |
| February | 0.1 | -6.0 | 98 | 10 |
| March | 2.3 | -2.7 | 118 | 11 |
| April | 6.2 | 1.8 | 109 | 12 |
| May | 10.5 | 6.1 | 109 | 12 |
| June | 14.5 | 10.3 | 117 | 11 |
| July | 17.5 | 13.8 | 85 | 10 |
| August | 18.1 | 14.5 | 86 | 8 |
| September | 15.9 | 12.4 | 110 | 10 |
| October | 11.7 | 8.0 | 137 | 11 |
| November | 7.3 | 3.0 | 130 | 12 |
| December | 2.9 | -2.5 | 146 | 13 |
Compared with Moncton, the main town 222 km to the north-east, highs in the warmest month are 6.1 °C lower here, and the year brings 246 mm more precipitation. In 4 months the average low falls below 0 °C (January, February, March and December); in no month does the average high exceed 20 °C.
Nearby places with normals of their own (from another station or reanalysis grid cell) compare as follows: Eastern Charlotte (45 km to the north): summers 4.3 °C warmer and 186 mm drier a year; Saint Andrews (46 km to the north-west): summers 5.1 °C warmer and 205 mm drier a year. Among the 107 places we cover in New Brunswick whose normals come from the ERA5 reanalysis, Grand Manan ranks 107th for summer warmth and 9th for annual precipitation. The warmest summers are in Lincoln and the coolest in Grand Manan; the wettest year is in Saint John, Saint John West and 6 other places and the driest in Haut-Madawaska.
What is the warmest month in Grand Manan?
The warmest month in Grand Manan is typically August, averaging 18.1 °C (1991–2020 normal). The coldest is January, at -6.8 °C.
How many rainy days does Grand Manan get per year?
Grand Manan sees about 132 rainy days a year, adding up to roughly 1360 mm of rainfall (1991–2020 normals).
How big is the gap between summer and winter in Grand Manan?
Between August and January, the temperature gap in Grand Manan runs to about 24.9 °C, based on the 1991–2020 normals.