Oskū weather in December

In December, Oskū sees average daytime highs of 7°C and overnight lows near -3°C, with 25 mm of precipitation across 5.9 wet days and about 9.4 hours of daylight. It is the 11th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 8°C in the first days to 5°C by the end. The sky is clear or mostly clear about 44% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of December to 9 h 24 min by month's end. Set against the rest of the year, December is Oskū's 9th-clearest and 12th-windiest month. For the whole year in context, see Oskū's year-round climate.

Daytime high
11th warmest
Overnight low
-3°
2nd coldest
Precipitation
25 mm
5.9 wet days
Daylight
9 h 24 min
7:40 AM – 5:03 PM
Cloud cover
47%
9th clearest
Wind
6 km/h
12th windiest
Solar energy
2.31 kWh/m²
Travel score
0.8
out of 10

Oskū is city in East Azerbaijan Province, Iran.

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 8°C in the first days to 5°C by the end.

A typical December day in Oskū reaches about 7°C in the afternoon and slips back to -3°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 2°C and 11°C. Set against its neighbours, December runs about 6°C cooler than November and about 2°C warmer than January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
19-1
29-1
38-1
48-1
58-2
68-2
78-2
87-2
97-2
107-2
117-2
127-2
137-2
147-2
156-3
166-3
176-3
186-3
196-3
206-3
216-3
226-3
236-3
246-3
256-3
266-3
276-3
285-3
295-3
305-3
315-4

How December really feels in Oskū

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.

Oskū weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°225.74.29.70.0
Feb / -2°316.83.810.51.1
Mar12° / 438.82.311.73.6
Apr18° / 427.80.3136.3
May24° / 11°286.70147.6
Jun31° / 16°92.6014.66.1
Jul34° / 19°61.8014.44.0
Aug34° / 18°30.7013.54.2
Sep29° / 13°30.6012.37.5
Oct21° / 132.70118.2
Nov13° / 2851.1104.0
Dec / -3°255.93.29.40.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 39%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
35941
45842
55842
65842
75842
85743
95743
105743
115743
125842
135842
145842
155941
166040
176139
186139
196238
206337
216436
226436
236535
246535
256535
266436
276436
286436
296436
306436
316337

Chance of precipitation in December

Any precipitationSnow

Oskū gets around 25 mm of rain and snow over 5.9 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 19% and peaks near 21% on the wettest days, and about 3 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1207
2208
3208
4208
5208
6208
7209
8219
9219
102110
112110
122110
132110
142010
152010
162010
172011
181911
191911
201911
211811
221811
231711
241711
251711
261711
271611
281711
291711
301712
311712

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, the calmest month.

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
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 36 min at the start of December to 9 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 7:28 AM to 7:47 AM, and sunset from 5:02 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:285:02
29.57:295:02
39.57:305:02
49.57:315:02
59.57:325:02
69.57:335:02
79.57:345:02
89.57:345:02
99.47:355:02
109.47:365:02
119.47:375:02
129.47:375:02
139.47:385:02
149.47:395:03
159.47:395:03
169.47:405:03
179.47:415:04
189.47:415:04
199.47:425:04
209.47:425:05
219.47:435:05
229.47:435:06
239.47:445:06
249.47:445:07
259.47:455:07
269.47:455:08
279.47:455:08
289.47:465:09
299.47:465:09
309.47:465:10
319.47:475:11

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.31 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 7.83 kWh/m² in June across the year — December's 2.31 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.4Moderate
42.4Moderate
52.4Moderate
62.4Moderate
72.3Moderate
82.3Moderate
92.3Moderate
102.3Moderate
112.3Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in December

Is December a good time to visit Oskū?

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

0.8
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Oskū.

What to pack for Oskū in December

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

In December, Oskū sees daytime highs around 7°C and nights near -3°C. Pack a warm layer. Worth having: a heavy coat. About 6 days see rain.

a warm layera heavy coat

UV index in Oskū in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Oskū peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 14UV 11Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May9Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct5High
Nov3Moderate
Dec3Moderate

Air quality in Oskū 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 Oskū is worst in April — around 34 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (August, 21 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 2334 µg/m³Aug 1621 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb30Moderate
Mar32Moderate
Apr34Moderate
May34Moderate
Jun26Moderate
Jul22Moderate
Aug21Moderate
Sep23Moderate
Oct27Moderate
Nov26Moderate
Dec29Moderate
Location & terrain

Where is Oskū?

Oskū sits at 37.9°N, 46.1°E, 1,512 m above sea level, in Iran. The nearest listed city is Sahand, 4.0 km away.

Topography around Oskū

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

Within 3 km, the terrain around Oskū has significant variations in elevation — a maximum elevation change of 313 m around an average of 1,579 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,112 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,597 m.

The land around Oskū is covered by grassland (41%) and bare terrain (24%) within 3 km, grassland (42%) and bare terrain (38%) within 16 km, and grassland (48%) within 80 km.

3 km
313 m
16 km
1,112 m
80 km
2,597 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Sahand 4.0 km · Khosrowshahr 7.0 km · Sardrūd 13 km · Īlkhchī 13 km · Āz̄arshahr 21 km · Tabriz 24 km · Shabestar 47 km · Ajab Shīr 53 km

Iran travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
220 V · 50 Hz
Prices
≈ 352% of US
price level, 2025
GDP per capita
$3,924
2025
Happiness
5.2 / 10
World Happiness, 2025
Safe drinking water
94%
of population, 2024
Homicide rate
2.4
per 100k, 2014
Road deaths
21.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 492
Religion
Muslim 99%Christian 1%Baha'i 0%agnostic 0%

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 Oskū (37.915°, 46.1226°, elevation 1,512 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).