Shahreẕā weather in December

In December, Shahreẕā sees average daytime highs of 10°C and overnight lows near -3°C, with 18 mm of precipitation across 3.8 wet days and about 9.9 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 11°C in the first days to 9°C by the end. The sky is clear or mostly clear about 65% 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 Shahreẕā's 7th-clearest and 12th-windiest month. For the whole year in context, see Shahreẕā's year-round climate.

Daytime high
10°
11th warmest
Overnight low
-3°
3rd coldest
Precipitation
18 mm
3.8 wet days
Daylight
9 h 54 min
7:01 AM – 4:56 PM
Cloud cover
33%
7th clearest
Wind
8 km/h
12th windiest
Solar energy
3.48 kWh/m²
Travel score
2.5
out of 10

Shahreẕā 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 11°C in the first days to 9°C by the end.

A typical December day in Shahreẕā reaches about 10°C in the afternoon and slips back to -3°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 14°C. Set against its neighbours, December runs about 5°C cooler than November and about 3°C warmer than January.

-10°10°20°151015202531
Avg high (°C)Avg low (°C)
111-1
211-1
311-1
411-1
511-1
610-2
710-2
810-2
910-2
1010-2
1110-2
1210-2
1310-2
1410-3
1510-3
169-3
179-3
189-3
199-3
209-3
219-3
229-3
239-3
249-3
259-4
269-4
279-4
289-4
299-4
308-4
318-4

How December really feels in Shahreẕā

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.

Shahreẕā weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°254.53.410.11.1
Feb10° / -3°183.6210.82.7
Mar15° / 193.80.911.85.3
Apr20° / 1440.112.87.4
May26° / 12°82.6013.68.2
Jun32° / 17°10.4014.15.8
Jul34° / 19°00.1013.94.2
Aug33° / 18°00.1013.25.1
Sep29° / 13°00012.27.6
Oct23° / 31.1011.28.9
Nov15° / 162.60.410.45.5
Dec10° / -3°183.81.99.92.5

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 65% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 23%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47525
57525
67525
77426
87426
97525
107525
117525
127624
137723
147822
157822
167822
177822
187822
198020
208020
218020
228020
238020
248020
258020
268020
278020
288020
297921
307822
317822

Chance of precipitation in December

Any precipitationSnow

Shahreẕā gets around 18 mm of rain and snow over 3.8 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 12% and peaks near 15% on the wettest days, and about 2 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1134
2145
3145
4145
5156
6156
7156
8156
9156
10157
11157
12157
13147
14147
15137
16137
17127
18127
19127
20117
21117
22106
23106
24106
2596
2696
2797
28107
29107
30107
31118

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, the calmest month.

Across December, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
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 6:51 AM to 7:08 AM, and sunset from 4:54 PM to 5:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.16:514:54
210.06:514:54
310.06:524:54
410.06:534:54
510.06:544:54
610.06:544:54
710.06:554:54
810.06:564:54
910.06:574:54
1010.06:574:55
119.96:584:55
129.96:594:55
139.96:594:55
149.97:004:56
159.97:014:56
169.97:014:56
179.97:024:57
189.97:024:57
199.97:034:57
209.97:034:58
219.97:044:58
229.97:044:59
239.97:054:59
249.97:055:00
259.97:065:00
269.97:065:01
279.97:065:01
289.97:075:02
299.97:075:02
309.97:075:03
319.97:085:04

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.48 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.48 kWh/m² to a high of 8.03 kWh/m² in June across the year — December's 3.48 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.5Moderate
33.5Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
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 Shahreẕā?

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

2.5
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 Shahreẕā.

What to pack for Shahreẕā in December

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

In December, Shahreẕā sees daytime highs around 10°C and nights near -3°C. Pack a warm layer. About 4 days see rain.

a warm layer

UV index in Shahreẕā 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 Shahreẕā peaks around July 20 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 — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 20UV 11Jan 10UV 3
UV index (midday)Level
Jan3Moderate
Feb6High
Mar7Very high
Apr8Very high
May11Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct8Very high
Nov5Moderate
Dec4Moderate

Air quality in Shahreẕā 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 Shahreẕā is worst in April — around 40 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (August, 22 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 1740 µg/m³Aug 1623 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb34Moderate
Mar36Poor
Apr40Poor
May37Poor
Jun26Moderate
Jul29Moderate
Aug22Moderate
Sep29Moderate
Oct31Moderate
Nov30Moderate
Dec32Moderate
Location & terrain

Where is Shahreẕā?

Shahreẕā sits at 32.0°N, 51.9°E, 1,822 m above sea level, in Iran. The nearest listed city is Dehāqān, 22 km away.

Topography around Shahreẕā

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

Within 3 km, the terrain around Shahreẕā has significant variations in elevation — a maximum elevation change of 427 m around an average of 1,839 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 980 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,235 m.

The land around Shahreẕā is covered by artificial surfaces (51%) and bare terrain (34%) within 3 km, bare terrain (90%) within 16 km, and bare terrain (74%) within 80 km.

3 km
427 m
16 km
980 m
80 km
2,235 m
treesgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Dehāqān 22 km · Mobārakeh 51 km · Dīzīcheh 54 km · Bahārestān 54 km · Borūjen 55 km · Varnāmkhvāst 60 km · Zarrīn Shahr 63 km · Chamgordān 65 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 Shahreẕā (32.0088°, 51.8641°, elevation 1,822 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).