Borūjen weather in December

In December, Borūjen sees average daytime highs of 6°C and overnight lows near -5°C, with 33 mm of precipitation across 5.2 wet days and about 9.9 hours of daylight. It is the 10th-warmest and 4th-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 53% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 06 min at the start of December to 9 h 54 min by month's end. Set against the rest of the year, December is Borūjen's 10th-clearest and 9th-windiest month. For the whole year in context, see Borūjen's year-round climate.

Daytime high
10th warmest
Overnight low
-5°
3rd coldest
Precipitation
33 mm
5.2 wet days
Daylight
9 h 54 min
7:03 AM – 4:59 PM
Cloud cover
41%
10th clearest
Wind
8 km/h
9th windiest
Solar energy
3.43 kWh/m²
Travel score
0.6
out of 10

Borūjen is city in Chaharmahal and Bakhtiari 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 Borūjen reaches about 6°C in the afternoon and slips back to -5°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 0°C and 12°C. Set against its neighbours, December runs about 6°C cooler than November and about 4°C warmer than January.

-10°10°151015202531
Avg high (°C)Avg low (°C)
18-3
28-3
38-3
48-3
58-3
67-4
77-4
87-4
97-4
107-4
117-4
126-4
136-5
146-5
156-5
166-5
176-5
186-5
196-5
206-6
215-6
225-6
235-6
245-6
255-6
265-6
275-6
285-6
295-6
305-6
314-6

How December really feels in Borūjen

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
4 feel bitter (≤ -10°C)

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

Borūjen weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -8°446.16.310.10.0
Feb / -6°385.35.110.80.2
Mar10° / -1°416.73.311.82.6
Apr16° / 266.60.312.85.6
May22° / 154.6013.67.9
Jun28° / 14°20.80147.8
Jul31° / 17°10.3013.96.0
Aug30° / 16°10.2013.26.8
Sep26° / 12°10.2012.28.9
Oct20° / 62011.28.1
Nov12° / 2741.610.43.8
Dec / -5°335.24.49.90.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
26931
36931
46832
56832
66832
76733
86733
96634
106634
116733
126733
136733
146832
156832
166832
176832
186931
196931
206931
216931
226931
236931
246931
256931
266931
276832
286832
296832
306733
316634

Chance of precipitation in December

Any precipitationSnow

Borūjen gets around 33 mm of rain and snow over 5.2 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 17% and peaks near 20% on the wettest days, and about 4 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
11914
21914
31915
42015
52016
62016
72017
82017
92017
102017
112017
121917
131917
141816
151816
161715
171715
181614
191514
201513
211413
221413
231312
241312
251312
261312
271312
281312
291413
301413
311514

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 8 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 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
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 06 min at the start of December to 9 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 6:53 AM to 7:10 AM, and sunset from 4:56 PM to 5:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.16:534:56
210.06:544:56
310.06:544:56
410.06:554:56
510.06:564:56
610.06:574:56
710.06:574:57
810.06:584:57
910.06:594:57
1010.07:004:57
119.97:004:57
129.97:014:57
139.97:024:58
149.97:024:58
159.97:034:58
169.97:034:59
179.97:044:59
189.97:054:59
199.97:055:00
209.97:065:00
219.97:065:01
229.97:075:01
239.97:075:02
249.97:085:02
259.97:085:03
269.97:085:03
279.97:095:04
289.97:095:04
299.97:095:05
309.97:105:05
319.97:105:06

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.43 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.43 kWh/m² to a high of 8.05 kWh/m² in June across the year — December's 3.43 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in December

Is December a good time to visit Borūjen?

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

0.6
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Borūjen.

What to pack for Borūjen in December

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

In December, Borūjen sees daytime highs around 6°C and nights near -5°C. Pack a warm layer and a heavy coat. About 5 days see rain.

a warm layera heavy coat

UV index in Borūjen in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Borūjen peaks around July 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 20UV 12Jan 10UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar8Very high
Apr8Very high
May11Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep9Very high
Oct8Very high
Nov5Moderate
Dec4Moderate

Air quality in Borūjen 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 Borūjen is worst in April — around 37 µg/m³ PM2.5 (poor), about 1.9× the cleanest month (August, 20 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 1937 µg/m³Aug 1820 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb29Moderate
Mar32Moderate
Apr37Poor
May35Moderate
Jun24Moderate
Jul26Moderate
Aug20Moderate
Sep24Moderate
Oct25Moderate
Nov23Moderate
Dec23Moderate
Location & terrain

Where is Borūjen?

Borūjen sits at 32.0°N, 51.3°E, 2,197 m above sea level, in Iran. The nearest listed city is Dehāqān, 34 km away.

Topography around Borūjen

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

Within 3 km, the terrain around Borūjen has only modest variations in elevation — a maximum elevation change of 82 m around an average of 2,237 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 958 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,813 m.

The land around Borūjen is covered by bare terrain (40%), cropland (33%) and artificial surfaces (26%) within 3 km, bare terrain (45%) and cropland (37%) within 16 km, and bare terrain (46%) and grassland (31%) within 80 km.

3 km
82 m
16 km
958 m
80 km
2,813 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Dehāqān 34 km · Varnāmkhvāst 44 km · Farrokh Shahr 45 km · Sedeh Lanjān 46 km · Mobārakeh 47 km · Chamgordān 48 km · Zarrīn Shahr 48 km · Dīzīcheh 51 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 Borūjen (31.9652°, 51.2873°, elevation 2,197 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).