Ardestān weather in December

In December, Ardestān sees average daytime highs of 13°C and overnight lows near 3°C, with 18 mm of precipitation across 4.3 wet days and about 9.8 hours of daylight. It is the 11th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 13°C by the end. The sky is clear or mostly clear about 58% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 48 min by month's end. Set against the rest of the year, December is Ardestān's 9th-clearest and 12th-windiest month. For the whole year in context, see Ardestān's year-round climate.

Daytime high
13°
11th warmest
Overnight low
2nd coldest
Precipitation
18 mm
4.3 wet days
Daylight
9 h 48 min
7:03 AM – 4:51 PM
Cloud cover
37%
9th clearest
Wind
6 km/h
12th windiest
Solar energy
3.1 kWh/m²
Travel score
4.6
out of 10

Ardestān is city in Isfahan 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 14°C in the first days to 13°C by the end.

A typical December day in Ardestān reaches about 13°C in the afternoon and slips back to 3°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 19°C. Set against its neighbours, December runs about 5°C cooler than November and about 2°C warmer than January.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1155
2154
3144
4144
5144
6144
7144
8144
9144
10144
11133
12133
13133
14133
15133
16133
17133
18133
19133
20133
21133
22133
23132
24132
25132
26132
27132
28132
29132
30132
31132

How December really feels in Ardestān

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 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
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ardestān 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
Jan12° / 244.71.9103.6
Feb15° / 204110.85.2
Mar20° / 2750.311.77.3
Apr25° / 14°204.1012.87.8
May31° / 19°82.1013.75.7
Jun36° / 23°10.1014.22.7
Jul38° / 26°000141.2
Aug37° / 24°00013.22.0
Sep33° / 20°00012.24.6
Oct27° / 14°41.2011.28.2
Nov18° / 193.60.310.36.9
Dec13° / 184.30.59.84.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
26931
36931
46931
56931
66931
76832
86832
96832
106832
116832
126931
136931
146931
157030
167030
177129
187129
197129
207228
217228
227228
237228
247327
257327
267327
277426
287426
297426
307426
317426

Chance of precipitation in December

Any precipitationSnow

Ardestān gets around 18 mm of rain and snow over 4.3 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 14% and peaks near 16% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1141
2141
3151
4151
5151
6151
7152
8162
9162
10162
11162
12162
13162
14162
15162
16162
17152
18152
19152
20142
21142
22132
23132
24122
25112
26112
27102
28102
29102
30102
31103

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 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
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 54 min at the start of December to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:52 AM to 7:09 AM, and sunset from 4:49 PM to 4:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.96:524:49
29.96:534:49
39.96:534:49
49.96:544:49
59.96:554:49
69.96:564:49
79.96:574:49
89.96:574:49
99.96:584:49
109.86:594:49
119.86:594:49
129.87:004:50
139.87:014:50
149.87:014:50
159.87:024:50
169.87:034:51
179.87:034:51
189.87:044:51
199.87:044:52
209.87:054:52
219.87:054:53
229.87:064:53
239.87:064:54
249.87:074:54
259.87:074:55
269.87:084:55
279.87:084:56
289.87:084:56
299.87:094:57
309.87:094:58
319.87:094:58

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.1 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.1 kWh/m² to a high of 7.9 kWh/m² in June across the year — December's 3.1 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.1Moderate
203.1Moderate
213.1Moderate
223.1Moderate
233.1Moderate
243.1Moderate
253.1Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.2Moderate
313.2Moderate
Planning a trip in December

Hazard calendar for Ardestān

In seasonPeak

None of Ardestān's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Ardestān sees seasonal dust haze (July), heaviest in July.

Dust
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Ardestān?

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

4.6
Sightseeing
7th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a reasonable time to visit Ardestān for sightseeing.

What to pack for Ardestān in December

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

In December, Ardestān sees daytime highs around 13°C and nights near 3°C. Worth packing: a warm layer. About 4 days see rain.

a warm layer

UV index in Ardestān 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 Ardestān peaks around July 17 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 12 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 17UV 11Jan 12UV 3
UV index (midday)Level
Jan3Moderate
Feb5High
Mar6High
Apr8Very high
May10Extreme
Jun10Extreme
Jul12Extreme
Aug10Extreme
Sep9Very high
Oct7High
Nov4Moderate
Dec4Moderate

Air quality in Ardestān 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 Ardestān is worst in July — around 45 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (November, 20 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1643 µg/m³Nov 2120 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb26Moderate
Mar31Moderate
Apr38Poor
May38Poor
Jun36Poor
Jul45Poor
Aug33Moderate
Sep32Moderate
Oct25Moderate
Nov20Moderate
Dec21Moderate
Location & terrain

Where is Ardestān?

Ardestān sits at 33.4°N, 52.4°E, 1,219 m above sea level, in Iran. The nearest listed city is Naţanz, 44 km away.

Isfahan

Topography around Ardestān

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

Within 3 km, the terrain around Ardestān has only modest variations in elevation — a maximum elevation change of 145 m around an average of 1,199 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,226 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,889 m.

The land around Ardestān is covered by bare terrain (71%) within 3 km, bare terrain (91%) within 16 km, and bare terrain (97%) within 80 km.

3 km
145 m
16 km
1,226 m
80 km
2,889 m
treesgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Naţanz 44 km · Nā’īn 88 km · Dowlatābād 90 km · Dastgerd 92 km · Gaz-e Borkhar 95 km · Khowrzūq 95 km · Shāhīn Shahr 96 km · Isfahan 104 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 Ardestān (33.3794°, 52.3698°, elevation 1,219 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).