Sankt Martin weather in December

In December, Sankt Martin sees average daytime highs of 2°C and overnight lows near -4°C, with 80 mm of precipitation across 8.5 wet days and about 8.4 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 3°C in the first days to 1°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 36 min at the start of December to 8 h 24 min by month's end. Set against the rest of the year, December is Sankt Martin's 11th-clearest and 8th-windiest month. For the whole year in context, see Sankt Martin's year-round climate.

Daytime high
11th warmest
Overnight low
-4°
3rd coldest
Precipitation
80 mm
8.5 wet days
Daylight
8 h 24 min
7:48 AM – 4:11 PM
Cloud cover
67%
11th clearest
Wind
5 km/h
8th windiest
Solar energy
1.11 kWh/m²
Travel score
0.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 3°C in the first days to 1°C by the end.

A typical December day in Sankt Martin reaches about 2°C in the afternoon and slips back to -4°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between -2°C and 7°C. Set against its neighbours, December runs about 5°C cooler than November and on par with January.

-15°-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
14-2
24-2
33-2
43-3
53-3
63-3
73-3
83-3
93-3
103-4
112-4
122-4
132-4
142-4
152-4
162-4
172-5
182-5
192-5
202-5
212-5
222-5
232-5
242-5
252-5
261-5
271-5
281-5
291-5
301-5
311-5

How December really feels in Sankt Martin

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.

Sankt Martin weather by month

How December compares with the rest of the year at a glance. December is the 11th-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°496.958.80.0
Feb / -5°597.36100.0
Mar / -1°769.84.911.61.5
Apr13° / 9612.62.113.33.4
May18° / 11914.60.214.85.1
Jun21° / 12°13614.8015.65.8
Jul23° / 13°14014.9015.36.2
Aug23° / 13°152140146.3
Sep18° / 13911.50.112.45.5
Oct13° / 1219.81.110.63.6
Nov / 12010.63.49.20.9
Dec / -4°808.56.28.40.0

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 11% of December, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23466
33466
43466
53565
63565
73664
83664
93862
103862
113862
123862
133961
143961
153961
163961
173961
183862
193862
203862
213862
223862
233862
243961
253961
263961
273961
284060
294060
304159
314060

Chance of precipitation in December

Any precipitationSnow

Sankt Martin gets around 80 mm of rain and snow over 8.5 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 28% and peaks near 30% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13018
23018
33019
43019
52919
62919
72920
82920
92820
102820
112820
122820
132720
142720
152720
162720
172720
182720
192720
202720
212720
222720
232720
242720
252720
262720
272620
282620
292620
302619
312619

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 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 36 min at the start of December to 8 h 24 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 7:33 AM to 7:54 AM, and sunset from 4:12 PM to 4:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.67:334:12
28.67:354:11
38.67:364:11
48.67:374:11
58.57:384:11
68.57:394:10
78.57:404:10
88.57:414:10
98.57:424:10
108.57:434:10
118.47:444:10
128.47:444:10
138.47:454:10
148.47:464:10
158.47:474:10
168.47:484:11
178.47:484:11
188.47:494:11
198.47:494:11
208.47:504:12
218.47:514:12
228.47:514:13
238.47:524:13
248.47:524:14
258.47:524:14
268.47:534:15
278.47:534:15
288.47:534:16
298.47:534:17
308.47:544:18
318.47:544:18

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.11 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.11 kWh/m² to a high of 5.66 kWh/m² in June across the year — December's 1.11 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.1Dim
21.1Dim
31.1Dim
41.1Dim
51.1Dim
61.1Dim
71.1Dim
81.1Dim
91.1Dim
101.1Dim
111.1Dim
121.1Dim
131.1Dim
141.1Dim
151.1Dim
161.1Dim
171.1Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.1Dim
241.1Dim
251.1Dim
261.1Dim
271.1Dim
281.1Dim
291.1Dim
301.1Dim
311.1Dim
Planning a trip in December

Is December a good time to visit Sankt Martin?

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
8th-best month of the year

December is a weaker month for outdoor sightseeing in Sankt Martin.

What to pack for Sankt Martin in December

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

In December, Sankt Martin sees daytime highs around 2°C and nights near -4°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

UV index in Sankt Martin 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 Sankt Martin peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highHighModerateLowJul 16UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar5Moderate
Apr7High
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Sankt Martin in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Sankt Martin is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2316 µg/m³Nov 910 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar16Moderate
Apr16Moderate
May14Moderate
Jun15Moderate
Jul13Moderate
Aug12Good
Sep11Good
Oct11Good
Nov10Good
Dec12Moderate
Location & terrain

Where is Sankt Martin?

Sankt Martin sits at 46.6°N, 14.3°E, 443 m above sea level, in Austria. The nearest listed city is Klagenfurt, 2.0 km away.

VillachKranjBohinjWolfsberg

Topography around Sankt Martin

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

Within 3 km, the terrain around Sankt Martin has significant variations in elevation — a maximum elevation change of 260 m around an average of 466 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,431 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,810 m.

The land around Sankt Martin is covered by trees (35%) and artificial surfaces (35%) within 3 km, trees (56%) within 16 km, and trees (74%) within 80 km.

3 km
260 m
16 km
1,431 m
80 km
2,810 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Klagenfurt 2.0 km · Sankt Peter 5.0 km · Bled 30 km · Villach 33 km · Kranj 42 km · Bohinj 46 km · Wolfsberg 49 km · Ljubljana 65 km

Austria travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 82% of US
price level, 2025
GDP per capita
$62,930
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.9
per 100k, 2023
Road deaths
4.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 616
Religion
Roman Catholic 55%none 22%Muslim 8%other 5%

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 Sankt Martin (46.6167°, 14.2833°, elevation 443 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).