Dieppe weather in December

In December, Dieppe sees average daytime highs of 0°C and overnight lows near -8°C, with 113 mm of precipitation across 12.2 wet days and about 8.5 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 2°C in the first days to -2°C by the end. The sky is clear or mostly clear about 26% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 42 min at the start of December to 8 h 30 min by month's end. Set against the rest of the year, December is Dieppe's 7th-clearest and 1st-windiest month. For the whole year in context, see Dieppe's year-round climate.

Daytime high
10th warmest
Overnight low
-8°
3rd coldest
Precipitation
113 mm
12.2 wet days
Daylight
8 h 30 min
8:01 AM – 4:29 PM
Cloud cover
67%
7th clearest
Wind
15 km/h
1st windiest
Solar energy
1.21 kWh/m²
Travel score
0.0
out of 10

Dieppe is city in New Brunswick, Canada.

Density
505/km²
people per km²
Founded
2003

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 2°C in the first days to -2°C by the end.

A typical December day in Dieppe reaches about 0°C in the afternoon and slips back to -8°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between -7°C and 8°C. Set against its neighbours, December runs about 6°C cooler than November and about 3°C warmer than January.

-20°-10°10°151015202531
Avg high (°C)Avg low (°C)
13-5
23-5
32-5
42-5
52-6
62-6
72-6
81-6
91-7
101-7
111-7
121-7
130-7
140-8
150-8
160-8
170-8
180-8
190-8
200-8
21-1-9
22-1-9
23-1-9
24-1-9
25-1-9
26-1-10
27-2-10
28-2-10
29-2-10
30-2-11
31-2-11

How December really feels in Dieppe

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 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
31
31 feel bitter (≤ -10°C)

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Dieppe weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -13°9311.49.38.90.0
Feb-2° / -12°82108.9100.0
Mar / -7°9811.58.611.60.0
Apr / -1°8512.55.313.31.6
May15° / 8512.50.514.74.2
Jun20° / 10°9111.8015.55.9
Jul24° / 14°8211.5015.26.6
Aug23° / 14°779.80146.9
Sep19° / 10°939.3012.36.2
Oct13° / 9810.70.410.73.4
Nov / -1°9810.83.89.20.6
Dec / -8°11312.28.58.50.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23466
33466
43466
53466
63466
73466
83466
93565
103565
113664
123664
133664
143763
153862
163862
173862
183862
193961
203961
213961
224159
234159
244159
254258
264258
274357
284357
294456
304456
314456

Chance of precipitation in December

Any precipitationSnow

Dieppe gets around 113 mm of rain and snow over 12.2 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 39% and peaks near 40% on the wettest days, and about 9 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13822
23822
33823
43823
53823
63823
73724
83724
93724
103724
113724
123724
133725
143825
153825
163826
173926
183927
194027
204028
214029
224029
234030
244030
254030
264031
274031
283931
293931
303931
313831

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 15 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 42 min at the start of December to 8 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:47 AM to 8:07 AM, and sunset from 4:30 PM to 4:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.77:474:30
28.77:484:29
38.77:504:29
48.67:514:29
58.67:524:28
68.67:534:28
78.67:544:28
88.67:554:28
98.57:564:28
108.57:564:28
118.57:574:28
128.57:584:28
138.57:594:28
148.58:004:28
158.58:014:28
168.58:014:29
178.48:024:29
188.48:034:29
198.48:034:29
208.48:044:30
218.48:044:30
228.48:054:31
238.48:054:31
248.48:064:32
258.48:064:32
268.48:064:33
278.48:074:34
288.58:074:34
298.58:074:35
308.58:074:36
318.58:074:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.21 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.21 kWh/m² to a high of 5.61 kWh/m² in June across the year — December's 1.21 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.3Dim
21.3Dim
31.2Dim
41.2Dim
51.2Dim
61.2Dim
71.2Dim
81.2Dim
91.2Dim
101.2Dim
111.2Dim
121.2Dim
131.2Dim
141.2Dim
151.2Dim
161.2Dim
171.2Dim
181.2Dim
191.2Dim
201.2Dim
211.2Dim
221.2Dim
231.2Dim
241.3Dim
251.3Dim
261.3Dim
271.3Dim
281.3Dim
291.3Dim
301.3Dim
311.3Dim
Planning a trip in December

Is December a good time to visit Dieppe?

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

0.0
Sightseeing
9th-best month of the year
0.0
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Dieppe.

What to pack for Dieppe in December

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

In December, Dieppe sees daytime highs around 0°C and nights near -8°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 12 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Dieppe in December

The nearest coast averages about 2°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 33 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
Jan-1Bracing
Feb-1Bracing
Mar-1Bracing
Apr1Bracing
May6Bracing
Jun12Bracing
Jul17Cool
Aug18Cool
Sep16Cool
Oct12Bracing
Nov7Bracing
Dec2Bracing

UV index in Dieppe in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dieppe peaks around June 23 at about 7 (very 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 23UV 7Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7Very high
Jul7Very high
Aug6High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Dieppe?

Dieppe sits at 46.1°N, 64.7°W, 42 m above sea level, in Canada. The nearest listed city is Moncton, 9.0 km away.

Topography around Dieppe

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

Within 3 km, the terrain around Dieppe has only modest variations in elevation — a maximum elevation change of 93 m around an average of 45 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 242 m; within 80 km, significant variations in elevation — a maximum elevation change of 453 m.

The land around Dieppe is covered by trees (64%) and grassland (22%) within 3 km, trees (74%) within 16 km, and trees (63%) and water (25%) within 80 km.

3 km
93 m
16 km
242 m
80 km
453 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Moncton 9.0 km · Riverview 10 km · Lutes Mountain 18 km · Charlottetown 122 km · Quispamsis 122 km · Miramichi 123 km · Saint John 139 km · Saint John West 141 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 Dieppe (46.0784°, -64.6873°, elevation 42 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).