Windsor weather in December

In December, Windsor sees average daytime highs of 2°C and overnight lows near -3°C, with 62 mm of precipitation across 9.1 wet days and about 9 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 4°C in the first days to 1°C by the end. 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 9 h 06 min at the start of December to 8 h 54 min by month's end. Set against the rest of the year, December is Windsor's 11th-clearest and 4th-windiest month. For the whole year in context, see Windsor's year-round climate.

Daytime high
10th warmest
Overnight low
-3°
3rd coldest
Precipitation
62 mm
9.1 wet days
Daylight
8 h 54 min
8:01 AM – 4:56 PM
Cloud cover
77%
11th clearest
Wind
17 km/h
4th windiest
Solar energy
1.48 kWh/m²
Travel score
0.0
out of 10

Windsor is city in Essex County, Ontario, Canada.

Air quality
Good
PM2.5 8.5 µg/m³ · 2019
Density
1,570/km²
people per km²
Founded
1749

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 4°C in the first days to 1°C by the end.

A typical December day in Windsor reaches about 2°C in the afternoon and slips back to -3°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between -4°C and 9°C. Set against its neighbours, December runs about 6°C cooler than November and about 3°C warmer than January.

-10°10°151015202531
Avg high (°C)Avg low (°C)
150
25-1
35-1
44-1
54-1
64-1
74-2
83-2
93-2
103-2
113-2
123-3
133-3
142-3
152-3
162-3
172-3
182-3
192-4
202-4
212-4
222-4
231-4
241-4
251-4
261-4
271-4
281-4
291-5
301-5
311-5

How December really feels in Windsor

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
6 feel bitter (≤ -10°C)

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

Windsor weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-0° / -7°6410.25.99.30.0
Feb / -6°548.35.410.30.0
Mar / -2°659.63.811.60.6
Apr13° / 9112113.13.4
May20° / 11°9012.8014.45.7
Jun25° / 17°8610.90156.6
Jul27° / 19°7810.7014.86.4
Aug26° / 19°769.6013.76.8
Sep22° / 14°678.3012.37.0
Oct15° / 698.9010.84.8
Nov / 6991.59.61.5
Dec / -3°629.14.190.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 78%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22476
32476
42377
52377
62377
72377
82377
92377
102377
112179
122179
132179
142278
152278
162278
172278
182278
192278
202278
212179
222179
232278
242179
252179
262179
272080
282179
292179
302179
312179

Chance of precipitation in December

Any precipitationSnow

Windsor gets around 62 mm of rain and snow over 9.1 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 30% and peaks near 32% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13211
23211
33212
43112
53113
63113
73013
83014
93014
103014
113014
123014
133014
143014
153014
163014
173014
183014
193013
203013
212913
222913
232913
242913
252913
262913
273013
283013
293114
303114
313215

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 17 km/h in December.

Across December, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
118light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 06 min at the start of December to 8 h 54 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 7:48 AM to 8:07 AM, and sunset from 4:56 PM to 5:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.17:484:56
29.17:494:56
39.17:504:55
49.17:514:55
59.17:524:55
69.07:534:55
79.07:544:55
89.07:544:55
99.07:554:55
109.07:564:55
119.07:574:55
129.07:584:55
138.97:584:55
148.97:594:55
158.98:004:56
168.98:014:56
178.98:014:56
188.98:024:56
198.98:024:57
208.98:034:57
218.98:034:58
228.98:044:58
238.98:044:59
248.98:054:59
258.98:055:00
268.98:065:00
278.98:065:01
288.98:065:01
298.98:065:02
308.98:075:03
318.98:075:04

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.48 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.48 kWh/m² to a high of 6.48 kWh/m² in June across the year — December's 1.48 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.6Dim
21.6Dim
31.5Dim
41.5Dim
51.5Dim
61.5Dim
71.5Dim
81.5Dim
91.5Dim
101.5Dim
111.5Dim
121.5Dim
131.5Dim
141.5Dim
151.5Dim
161.5Dim
171.5Dim
181.5Dim
191.5Dim
201.5Dim
211.5Dim
221.5Dim
231.5Dim
241.5Dim
251.5Dim
261.5Dim
271.5Dim
281.5Dim
291.5Dim
301.5Dim
311.5Dim
Planning a trip in December

Is December a good time to visit Windsor?

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

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Windsor.

What to pack for Windsor in December

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

In December, Windsor sees daytime highs around 2°C and nights near -3°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Windsor in December

The nearest coast averages about 4°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 14 km away) is warmest in August at about 23°C and coldest in February near 0°C.

It's comfortable for a long swim from Jul 2 to Sep 15 — about 2.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan1Bracing
Feb0Bracing
Mar1Bracing
Apr5Bracing
May11Bracing
Jun18Cool
Jul22Refreshing
Aug23Refreshing
Sep20Refreshing
Oct14Bracing
Nov8Bracing
Dec4Bracing

UV index in Windsor 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 Windsor peaks around June 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 20UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr6High
May7High
Jun9Very high
Jul8Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Windsor?

Windsor sits at 42.3°N, 83.0°W, 190 m above sea level, in Canada. The nearest listed city is Detroit, 4.0 km away.

Topography around Windsor

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

Within 3 km, the terrain around Windsor has only modest variations in elevation — a maximum elevation change of 41 m around an average of 187 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 98 m; within 80 km, significant variations in elevation — a maximum elevation change of 279 m.

The land around Windsor is covered by artificial surfaces (64%) and trees (21%) within 3 km, artificial surfaces (36%) and trees (20%) within 16 km, and water (29%), trees (26%) and cropland (26%) within 80 km.

3 km
41 m
16 km
98 m
80 km
279 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Detroit 4.0 km · LaSalle 7.0 km · Hamtramck 11 km · Tecumseh 11 km · Dearborn 13 km · Lincoln Park 14 km · Wyandotte 15 km · Allen Park 17 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 Windsor (42.3001°, -83.0165°, elevation 190 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).