Climate and average weather in Miramichi

In Miramichi, the summers are warm, showery, and partly cloudy and the winters are very cold, snowy, and partly cloudy.

Best: early June to late September

Over the course of the year, the temperature in Miramichi typically varies from -15°C to 24°C, and is rarely below -25°C or above 29°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Miramichi for warm-weather activities is from early June to late September.

Hottest
Jul
24°
Coldest
Jan
-15°
Wettest
Dec
106 mm
Driest
Feb
79 mm
Rain / yr
1086 mm
130 wet days
Daylight
8.3–15.7 h
shortest–longest
Elevation
18 m
47.0°N
Clearest
Jan
58% cloud

Miramichi is city in New Brunswick, Canada.

Founded
1995

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Miramichi weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early June to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Miramichi, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 4.0 months, from May 27 to September 26, with daily high temperatures above 17°C. The hottest month of the year in Miramichi is July, with an average high of 24°C and low of 14°C.

The cool season lasts 3.3 months, from December 5 to March 13, with daily high temperatures below 1°C. The coldest month of the year in Miramichi is January, with an average low of -15°C and high of -5°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 11°C) in May.

-20°-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan-5-15
Feb-3-13
Mar2-8
Apr8-1
May154
Jun2110
Jul2414
Aug2413
Sep199
Oct124
Nov5-2
Dec-1-10

How hot and cold Miramichi really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the coldest nights, wind chill pulls the feels-like down to about -23°C (around January 22), with roughly 203 freezing days a year (feels-like at or below 0°C) 121 of them bitterly cold — worst in January.

-20°-10°10°20°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan-5-5-22-15
Feb-3-3-20-13
Mar12-14-8
Apr88-5-1
May151524
Jun2121910
Jul24241414
Aug24241313
Sep191989
Oct121204
Nov55-7-2
Dec-1-1-16-10

Average hourly temperature in Miramichi

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 24°C, and coldest before dawn in January, near -15°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Miramichi weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-5° / -15°8810.19.38.70.0
Feb-4° / -13°798.98.5100.0
Mar / -8°9710.58.711.60.0
Apr / -1°8511.45.313.31.5
May15° / 8912.30.514.84.4
Jun21° / 10°8911.9015.66.0
Jul24° / 14°8912015.36.5
Aug24° / 13°8210.20146.8
Sep19° / 889.6012.46.1
Oct12° / 10210.90.710.63.2
Nov / -2°9310.64.49.10.4
Dec-1° / -10°10611.58.98.40.0

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Miramichi gets about 1086 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 4.2 months, from around Apr 1 to Aug 6, peaking in June at about 43% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 30.

December is the wettest month by volume, with 106 mm over about 12 wet days; February is the driest, with 79 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 29 · 43%Aug 30 · 30%
Rain on a day (%)Rain days
Jan3310
Feb339
Mar3411
Apr3811
May3912
Jun3912
Jul3912
Aug3310
Sep3210
Oct3611
Nov3611
Dec3612

Monthly rainfall

Over a full year, Miramichi collects about 1086 mm of rain across 130 wet days — roughly 90 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 106 mm, while February is the driest at just 79 mm. The three wettest months alone bring about 28% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec88799785898989828810293106
Rainfall (mm)Rain daysSnow days
Jan88109
Feb7999
Mar97119
Apr85115
May89121
Jun89120
Jul89120
Aug82100
Sep88100
Oct102111
Nov93114
Dec106129

Snow in Miramichi

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

Miramichi averages about 46 snowy days a year. Snow season runs roughly Oct 16 to May 16 — about 7 months.

March is snowiest, with roughly 8 days of snow and an estimated 68 cm of snowfall. Over the year that adds up to an estimated 338 cm of snow.

0510JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonMar 3
Snow daysSnowfall (cm)
Jan961
Feb979
Mar968
Apr530
May15
Jun00
Jul00
Aug00
Sep00
Oct12
Nov428
Dec964

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Miramichi, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around December 9 and lasts for 2.5 months, ending around February 21. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 48% of the time on average.

The cloudier part of the year begins around February 22 and lasts for 5.1 months, ending around July 26. The cloudiest month is April, when it is overcast or mostly cloudy 67% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJan 26 · 49%Apr 6 · 32%clearmostly clearpartly cloudymostly cloudyovercastclearercloudier
Clearer (%)Cloudier (%)
Jan4852
Feb4357
Mar3664
Apr3367
May3367
Jun3664
Jul3862
Aug4753
Sep4555
Oct3961
Nov3763
Dec4159

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 14, brings about 15 h 42 min of light; the shortest, around December 14, only 8 h 18 min — a swing of roughly 7 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.78:104:52
Feb10.07:375:36
Mar11.66:446:19
Apr13.35:427:03
May14.84:537:44
Jun15.64:328:12
Jul15.34:478:08
Aug14.05:257:28
Sep12.46:066:26
Oct10.66:485:26
Nov9.17:344:40
Dec8.48:084:28

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Miramichi averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 11 days.

The sunnier stretch runs 3.1 months, from around Nov 30 to Mar 4. The sunniest month is January, with roughly 11 sunny days (mixed).

The greyest month is June, down near 6 sunny days — about 44% fewer than the January peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedJan 2511 daysJun 25 days
Sunny daysSky
Jan11Mixed
Feb9Mixed
Mar8Gloomy
Apr6Gloomy
May6Gloomy
Jun6Gloomy
Jul6Gloomy
Aug8Gloomy
Sep9Mixed
Oct8Gloomy
Nov7Gloomy
Dec9Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Miramichi, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.3 months, from around June 15 to September 21. The muggiest month is July, when the air feels humid, muggy or worse about 32% of the time.

The most comfortable stretch runs from around September 22 to June 14, and April is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 27 · 100%Jul 28 · 61%muggyhumidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan100000
Feb100000
Mar100000
Apr100000
May97200
Jun731881
Jul3336247
Aug3933226
Sep741781
Oct96310
Nov99100
Dec100000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Miramichi is typically light breeze, near 12 km/h, and varies little with the seasons.

The windier part of the year lasts 6.8 months, from around Sep 24 to Apr 19. The windiest month is March, averaging about 13 km/h (light breeze).

The calmer part of the year runs from around Apr 20 to Sep 23, with August the calmest month at about 11 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeMar 8 · 14 km/hAug 1 · 11 km/h
Wind speed (km/h)Feels
Jan13light breeze
Feb13light breeze
Mar13light breeze
Apr12light breeze
May12calm
Jun11calm
Jul11calm
Aug11calm
Sep12light breeze
Oct13light breeze
Nov13light breeze
Dec13light breeze

Best time to visit Miramichi

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Miramichi throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid June, Miramichi is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Miramichi for general outdoor tourist activities is from early June to late September, with a peak score in the third week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 17 · 6.9

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan0.0poor
Feb0.0poor
Mar0.0poor
Apr1.5poor
May4.4fair
Jun6.0good
Jul6.4good
Aug6.8good
Sep6.1good
Oct3.2poor
Nov0.4poor
Dec0.0poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Miramichi for hot-weather activities is from late June to late August, with a peak score in the second week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 9 · 5.9

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Miramichi, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around July (highs near 24°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near -5°C), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Miramichi sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

Sea temperature near Miramichi

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 49 km away) is warmest in August at about 18°C and coldest in February near -1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan0Bracing
Feb0Bracing
Mar0Bracing
Apr1Bracing
May6Bracing
Jun12Bracing
Jul17Cool
Aug18Cool
Sep16Cool
Oct11Bracing
Nov7Bracing
Dec2Bracing

UV index (midday) in Miramichi by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Miramichi peaks around July 11 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 11UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul7High
Aug5Moderate
Sep4Moderate
Oct3Moderate
Nov2Low
Dec1Low

Average hourly UV index in Miramichi

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in July the burn window is concentrated in the middle of the day: about 7.5 hours a day reach index 3 (protection recommended), and 2.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar2.50
Apr50
May6.50
Jun7.52
Jul7.52.5
Aug5.50
Sep4.50
Oct00
Nov00
Dec00
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in Miramichi typically lasts about 198 days, from around April 23 to November 6 — the span where a frost-free day is more likely than not. It is reliably frost-free from May 14 to October 7.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 2110%Apr 2350%May 1490%Oct 790%Nov 650%Dec 1110%
Frost-free chance (%)Frost nights
Jan331
Feb328
Mar931
Apr3830
May9012
Jun1000
Jul1000
Aug1000
Sep980
Oct8023
Nov3430
Dec931

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Miramichi banks about 857 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

02004006008001,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr0
May19
Jun166
Jul282
Aug264
Sep124
Oct3
Nov0
Dec0

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Miramichi receives about 3.5 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 1.2 and 5.6 kWh/m².

The brighter stretch of the year lasts 6.3 months, from around Mar 12 to Sep 20. The brightest month is June, averaging about 5.5 kWh/m² (bright).

The dimmest month is December, down near 1.2 kWh/m² — roughly 77% less than the June peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 175.6 kWhDec 131.2 kWh
Solar energy (kWh/m²)Level
Jan1.6Dim
Feb2.6Moderate
Mar3.7Moderate
Apr4.6Bright
May5.1Bright
Jun5.5Bright
Jul5.4Bright
Aug4.8Bright
Sep3.7Moderate
Oct2.4Moderate
Nov1.5Dim
Dec1.2Dim

Where is Miramichi?

Miramichi sits at 47.0°N, 65.5°W, 18 m above sea level, in Canada. The nearest listed city is Lutes Mountain, 109 km away.

Topography around Miramichi

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Miramichi.

Within 3 km, the terrain around Miramichi has only modest variations in elevation — a maximum elevation change of 104 m around an average of 36 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 141 m; within 80 km, large variations in elevation — a maximum elevation change of 706 m.

The land around Miramichi is covered by trees (55%) within 3 km, trees (78%) within 16 km, and trees (74%) within 80 km.

3 km
104 m
16 km
141 m
80 km
706 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Lutes Mountain 109 km · Moncton 117 km · Riverview 120 km · Dieppe 123 km · Fredericton Northside 146 km · Fredericton 150 km · Quispamsis 182 km · Saint John 200 km

Canada travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 83% of US
price level, 2025
GDP per capita
$55,698
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
2
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Christian 53%none 35%Muslim 5%Hindu 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Miramichi (47.029°, -65.5019°, elevation 18 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).