Mission weather in December

In December, Mission sees average daytime highs of 3°C and overnight lows near -0°C, with 319 mm of precipitation across 20 wet days and about 8.1 hours of daylight. It is the 12th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 3°C through the month. The sky is clear or mostly clear about 13% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 18 min at the start of December to 8 hours by month's end. Set against the rest of the year, December is Mission's 12th-clearest and 2nd-windiest month. For the whole year in context, see Mission's year-round climate.

Daytime high
12th warmest
Overnight low
-0°
3rd coldest
Precipitation
319 mm
20 wet days
Daylight
8 hours
8:05 AM – 4:06 PM
Cloud cover
79%
12th clearest
Wind
6 km/h
2nd windiest
Solar energy
0.76 kWh/m²
Travel score
0.0
out of 10

Mission is city in British Columbia, Canada.

Air quality
Good
PM2.5 6 µg/m³ · 2019
Density
182/km²
people per km²
Founded
1868

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 3°C through the month.

A typical December day in Mission reaches about 3°C in the afternoon and slips back to -0°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -0°C and 7°C. Set against its neighbours, December runs about 3°C cooler than November and on par with January.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
140
240
340
440
540
640
740
840
940
1040
1140
1240
1340
1440
1530
1630
1730
1830
1930
2030
2130
2230
233-1
243-1
253-1
263-1
273-1
283-1
293-1
303-1
313-1

How December really feels in Mission

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
wind chill below the day's low

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

Mission weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°33819.911.88.50.0
Feb / -0°20816.39.99.80.2
Mar / 26519.81111.61.0
Apr12° / 17717.14.413.42.5
May16° / 12113.70.6154.6
Jun18° / 10°9612.8015.95.4
Jul22° / 12°568.2015.67.1
Aug22° / 12°757.9014.27.2
Sep19° / 10°12910.9012.45.9
Oct13° / 26317.40.410.52.8
Nov / 37120.68.18.90.6
Dec / -0°3192013.78.10.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of December, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12179
22179
32179
42179
52080
62080
72080
82080
92080
101981
111981
121882
131882
141882
151783
161783
171783
181882
191783
201783
211783
221783
231783
241783
251882
261981
271981
281981
291981
301981
312080

Chance of precipitation in December

Any precipitationSnow

Mission gets around 319 mm of rain and snow over 20 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 65% and peaks near 68% on the wettest days, and about 14 days bring snow.

0%20%40%60%80%151015202531
Rain chance (%)Snow chance (%)
16438
26339
36339
46340
56340
66341
76342
86442
96443
106544
116645
126645
136746
146846
156847
166847
176847
186847
196847
206847
216847
226746
236746
246646
256545
266545
276445
286444
296444
306544
316544

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 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 18 min at the start of December to 8 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 7:50 AM to 8:11 AM, and sunset from 4:08 PM to 4:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.37:504:08
28.37:514:08
38.27:524:07
48.27:534:07
58.27:554:06
68.27:564:06
78.27:574:06
88.17:584:06
98.17:594:06
108.18:004:06
118.18:014:05
128.18:024:05
138.08:034:05
148.08:034:06
158.08:044:06
168.08:054:06
178.08:064:06
188.08:064:06
198.08:074:07
208.08:074:07
218.08:084:07
228.08:084:08
238.08:094:08
248.08:094:09
258.08:104:09
268.08:104:10
278.08:104:11
288.08:104:11
298.08:114:12
308.08:114:13
318.08:114:14

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.76 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.76 kWh/m² to a high of 5.98 kWh/m² in July across the year — December's 0.76 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.8Dim
20.8Dim
30.8Dim
40.8Dim
50.8Dim
60.8Dim
70.8Dim
80.8Dim
90.8Dim
100.7Dim
110.7Dim
120.7Dim
130.7Dim
140.7Dim
150.7Dim
160.7Dim
170.7Dim
180.7Dim
190.7Dim
200.7Dim
210.7Dim
220.7Dim
230.7Dim
240.7Dim
250.7Dim
260.8Dim
270.8Dim
280.8Dim
290.8Dim
300.8Dim
310.8Dim
Planning a trip in December

Hazard calendar for Mission

In seasonPeak

In December, Mission sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Mission's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Mission?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Mission.

What to pack for Mission in December

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

In December, Mission sees daytime highs around 3°C and nights near -0°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 20 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Mission in December

The nearest coast averages about 8°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 51 km away) is warmest in August at about 16°C and coldest in January near 7°C.

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

5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan7Bracing
Feb7Bracing
Mar8Bracing
Apr9Bracing
May12Bracing
Jun14Bracing
Jul15Cool
Aug16Cool
Sep14Bracing
Oct11Bracing
Nov9Bracing
Dec8Bracing

UV index in Mission 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 Mission peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 17 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 highHighModerateLowJul 17UV 8Dec 17UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr4Moderate
May6High
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Mission?

Mission sits at 49.1°N, 122.3°W, 8 m above sea level, in Canada. The nearest listed city is Townline, 9.0 km away.

Topography around Mission

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

Within 3 km, the terrain around Mission has only modest variations in elevation — a maximum elevation change of 233 m around an average of 47 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,227 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,279 m.

The land around Mission is covered by trees (35%), grassland (24%) and artificial surfaces (20%) within 3 km, trees (55%) and grassland (27%) within 16 km, and trees (62%) within 80 km.

3 km
233 m
16 km
1,227 m
80 km
3,279 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewater
December weather nearby: Townline 9.0 km · Abbotsford 9.0 km · Haney 24 km · Maple Ridge 24 km · Vedder Crossing 25 km · Walnut Grove 25 km · Chilliwack-Downtown 25 km · Chilliwack 26 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 Mission (49.133°, -122.3026°, elevation 8 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).