Damāvand weather in December

In December, Damāvand sees average daytime highs of 1°C and overnight lows near -6°C, with 35 mm of precipitation across 6.9 wet days and about 9.6 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 2°C in the first days to -0°C by the end. The sky is clear or mostly clear about 50% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is Damāvand's 9th-clearest and 11th-windiest month. For the whole year in context, see Damāvand's year-round climate.

Daytime high
10th warmest
Overnight low
-6°
3rd coldest
Precipitation
35 mm
6.9 wet days
Daylight
9 h 36 min
7:10 AM – 4:46 PM
Cloud cover
43%
9th clearest
Wind
4 km/h
11th windiest
Solar energy
2.96 kWh/m²
Travel score
0.0
out of 10

Damāvand is city in Tehran 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 2°C in the first days to -0°C by the end.

A typical December day in Damāvand reaches about 1°C in the afternoon and slips back to -6°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between -4°C and 6°C. Set against its neighbours, December runs about 6°C cooler than November and about 3°C warmer than January.

-15°-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
13-4
22-4
32-4
42-5
52-5
62-5
72-5
81-5
91-5
101-5
111-5
121-6
131-6
141-6
151-6
161-6
171-6
180-6
190-6
200-6
210-6
220-6
230-6
240-6
250-6
260-7
270-7
280-7
290-7
300-7
310-7

How December really feels in Damāvand

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.

Damāvand weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -8°357.27.59.90.0
Feb-1° / -7°4588.310.60.0
Mar / -2°589.58.311.70.1
Apr11° / 539.92.912.92.6
May17° / 10°306.60.413.96.3
Jun24° / 15°113.3014.48.7
Jul27° / 18°102.4014.28.5
Aug26° / 17°81.8013.48.9
Sep22° / 13°82012.28.8
Oct15° / 2450.811.15.5
Nov / -0°376.95.110.10.9
Dec / -6°356.97.19.60.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% 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 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36337
46238
56139
66139
76139
86139
96139
106139
116238
126238
136337
146337
156337
166436
176436
186535
196634
206634
216832
226832
236931
247030
257030
267030
277030
287030
297030
307030
316931

Chance of precipitation in December

Any precipitationSnow

Damāvand gets around 35 mm of rain and snow over 6.9 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 22% and peaks near 25% on the wettest days, and about 7 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
12424
22424
32425
42425
52525
62526
72526
82526
92526
102525
112425
122425
132424
142424
152323
162323
172223
182222
192122
202121
212121
222020
232020
241919
251919
261919
271819
281919
291920
301920
311920

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 4 km/h in December.

Across December, daily wind ranges from about 4 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
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 48 min at the start of December to 9 h 36 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 6:59 AM to 7:17 AM, and sunset from 4:44 PM to 4:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.86:594:44
29.77:004:44
39.77:004:44
49.77:014:44
59.77:024:44
69.77:034:44
79.77:044:44
89.77:054:44
99.67:054:44
109.67:064:44
119.67:074:44
129.67:074:45
139.67:084:45
149.67:094:45
159.67:094:45
169.67:104:46
179.67:114:46
189.67:114:46
199.67:124:47
209.67:124:47
219.67:134:48
229.67:134:48
239.67:144:49
249.67:144:49
259.67:154:50
269.67:154:50
279.67:154:51
289.67:164:51
299.67:164:52
309.67:164:53
319.67:174:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.96 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.96 kWh/m² to a high of 7.23 kWh/m² in June across the year — December's 2.96 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
32.9Moderate
42.9Moderate
52.9Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
142.9Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.0Moderate
253.0Moderate
263.0Moderate
273.1Moderate
283.1Moderate
293.1Moderate
303.1Moderate
313.1Moderate
Planning a trip in December

Is December a good time to visit Damāvand?

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 Damāvand.

What to pack for Damāvand in December

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

In December, Damāvand sees daytime highs around 1°C and nights near -6°C. Pack a warm layer and a heavy coat. About 7 days see rain.

a warm layera heavy coat

UV index in Damāvand in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Damāvand peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 18UV 11Jan 10UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5High
Apr8Very high
May10Very high
Jun10Very high
Jul11Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Damāvand 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 Damāvand is worst in January — around 151 µg/m³ PM2.5 (very unhealthy), about 3.1× the cleanest month (July, 49 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJan 12150 µg/m³Jul 1850 µg/m³
PM2.5 (µg/m³)Level
Jan151Very unhealthy
Feb139Unhealthy
Mar113Unhealthy
Apr101Unhealthy
May85Unhealthy
Jun63Unhealthy
Jul49Poor
Aug58Unhealthy
Sep77Unhealthy
Oct101Unhealthy
Nov122Unhealthy
Dec148Unhealthy
Location & terrain

Where is Damāvand?

Damāvand sits at 35.7°N, 52.1°E, 1,959 m above sea level, in Iran. The nearest listed city is Rūdehen, 15 km away.

Topography around Damāvand

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

Within 3 km, the terrain around Damāvand has large variations in elevation — a maximum elevation change of 683 m around an average of 2,101 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,514 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,487 m.

The land around Damāvand is covered by grassland (55%) within 3 km, grassland (68%) within 16 km, and grassland (44%) and bare terrain (31%) within 80 km.

3 km
683 m
16 km
2,514 m
80 km
5,487 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Rūdehen 15 km · Būmahen 18 km · Pardīs 23 km · Lavāsān 40 km · Mojtame‘-e Maskūnī-ye Nāmjū 42 km · Qīāmdasht 44 km · Pākdasht 44 km · Kahrīzak 46 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 Damāvand (35.7184°, 52.0696°, elevation 1,959 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).