Miramichi weather in September

In September, Miramichi sees average daytime highs of 19°C and overnight lows near 9°C, with 88 mm of rain across 9.6 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 17°C by the end. The sky is clear or mostly clear about 32% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 12 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Miramichi's 2nd-clearest and 8th-windiest month. For the whole year in context, see Miramichi's year-round climate.

Daytime high
19°
4th warmest
Overnight low
9th coldest
Rainfall
88 mm
9.6 wet days
Daylight
12 h 18 min
6:06 AM – 6:26 PM
Cloud cover
59%
2nd clearest
Wind
12 km/h
8th windiest
Solar energy
3.7 kWh/m²
Travel score
6.1
out of 10

Miramichi is city in New Brunswick, Canada.

Founded
1995

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 17°C by the end.

A typical September day in Miramichi reaches about 19°C in the afternoon and slips back to 9°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 24°C. Set against its neighbours, September runs about 4°C cooler than August and about 7°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12212
22211
32211
42111
52111
62111
72111
82110
92110
102010
112010
122010
132010
14209
15199
16199
17199
18199
19198
20198
21188
22188
23188
24188
25177
26177
27177
28177
29177
30166

How September really feels in Miramichi

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Miramichi weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

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

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34654
44654
54654
64555
74555
84654
94654
104555
114555
124555
134555
144555
154555
164456
174555
184555
194555
204555
214555
224555
234555
244555
254456
264555
274456
284555
294555
304456

Chance of precipitation in September

Any precipitation

Miramichi gets around 88 mm of rain over 9.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
129
229
330
430
530
630
730
830
930
1030
1131
1231
1331
1431
1532
1632
1732
1832
1933
2033
2133
2234
2334
2434
2534
2635
2735
2835
2935
3035

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15728132
25927122
36126112
46225112
56424102
66523102
76622102
8682192
9692092
10692092
11701992
12721882
13731881
14741781
15761671
16761671
17771571
18771571
19791461
20791461
21811360
22811360
23821260
24811261
25831151
26841051
2785951
2886941
2987841
3088831

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2913light breeze
3013light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 12 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over September. Sunrise moves from 5:46 AM to 6:26 AM, and sunset from 6:57 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:466:57
213.15:476:55
313.15:496:53
413.05:506:51
513.05:526:49
612.95:536:47
712.85:546:45
812.85:566:43
912.75:576:41
1012.75:586:39
1112.66:006:37
1212.66:016:35
1312.56:026:33
1412.46:046:30
1512.46:056:28
1612.36:066:26
1712.36:086:24
1812.26:096:22
1912.26:106:20
2012.16:126:18
2112.06:136:16
2212.06:156:14
2311.96:166:12
2411.96:176:09
2511.86:196:07
2611.86:206:05
2711.76:216:03
2811.66:236:01
2911.66:245:59
3011.56:265:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.7 kWh/m².

For context, solar energy here swings from a low near 1.21 kWh/m² to a high of 5.52 kWh/m² in June across the year — September's 3.7 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.1Bright
54.1Bright
64.0Bright
74.0Bright
84.0Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.7Moderate
163.7Moderate
173.6Moderate
183.6Moderate
193.6Moderate
203.5Moderate
213.5Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.3Moderate
263.3Moderate
273.2Moderate
283.2Moderate
293.1Moderate
303.1Moderate
Planning a trip in September

Is September a good time to visit Miramichi?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.1
Sightseeing
3rd-best month of the year
2.8
Beach & pool
4th-best month of the year

September is a reasonable time to visit Miramichi for sightseeing.

What to pack for Miramichi in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Miramichi sees daytime highs around 19°C and nights near 9°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Miramichi in September

The nearest coast averages about 16°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

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 in Miramichi in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

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
Location & terrain

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
September weather 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).