Gorgān weather in December

In December, Gorgān sees average daytime highs of 8°C and overnight lows near -0°C, with 53 mm of precipitation across 8.8 wet days and about 9.5 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 9°C in the first days to 7°C by the end. The sky is clear or mostly clear about 46% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of December to 9 h 30 min by month's end. Set against the rest of the year, December is Gorgān's 6th-clearest and 7th-windiest month. For the whole year in context, see Gorgān's year-round climate.

Daytime high
10th warmest
Overnight low
-0°
3rd coldest
Precipitation
53 mm
8.8 wet days
Daylight
9 h 30 min
7:04 AM – 4:33 PM
Cloud cover
47%
6th clearest
Wind
5 km/h
7th windiest
Solar energy
2.46 kWh/m²
Travel score
1.2
out of 10

Gorgān is city in Golestan 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 9°C in the first days to 7°C by the end.

A typical December day in Gorgān reaches about 8°C in the afternoon and slips back to -0°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 2°C and 13°C. Set against its neighbours, December runs about 5°C cooler than November and about 2°C warmer than January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
191
291
391
481
581
680
780
880
980
1080
1180
1280
1380
1480
1570
1670
1770
1870
1970
207-1
217-1
227-1
237-1
247-1
257-1
267-1
277-1
287-1
297-1
307-1
317-1

How December really feels in Gorgān

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 21 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
21
wind chill below the day's low

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

Gorgān weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°609.789.80.2
Feb / -2°7711.89.410.60.4
Mar10° / 11616.39.711.71.9
Apr15° / 15420.22.912.93.5
May20° / 12°19522.50.213.94.7
Jun24° / 16°10916.7014.56.1
Jul26° / 18°5611.8014.36.7
Aug26° / 18°6512013.46.8
Sep23° / 15°10914.4012.36.6
Oct19° / 10°10013.80.3115.7
Nov12° / 8111.14.2103.2
Dec / -0°538.86.69.51.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35545
45545
55545
65545
75446
85545
95545
105644
115644
125743
135842
145842
155941
166040
176040
186139
196139
206238
216337
226337
236436
246436
256535
266535
276535
286535
296436
306436
316337

Chance of precipitation in December

Any precipitationSnow

Gorgān gets around 53 mm of rain and snow over 8.8 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 29% and peaks near 34% on the wettest days, and about 7 days bring snow. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13424
23425
33325
43325
53325
63225
73225
83225
93125
103125
113124
123024
133024
143023
152923
162922
172922
182821
192821
202720
212719
222619
232618
242518
252517
262517
272517
282517
292518
302618
312618

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 5 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
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 42 min at the start of December to 9 h 30 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 6:52 AM to 7:10 AM, and sunset from 4:32 PM to 4:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.76:524:32
29.66:534:32
39.66:544:32
49.66:554:31
59.66:564:31
69.66:564:31
79.66:574:31
89.66:584:32
99.56:594:32
109.57:004:32
119.57:004:32
129.57:014:32
139.57:024:32
149.57:024:32
159.57:034:33
169.57:044:33
179.57:044:33
189.57:054:34
199.57:054:34
209.57:064:34
219.57:074:35
229.57:074:35
239.57:074:36
249.57:084:36
259.57:084:37
269.57:094:37
279.57:094:38
289.57:094:39
299.57:104:39
309.57:104:40
319.57:104:41

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.46 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.46 kWh/m² to a high of 6.68 kWh/m² in June across the year — December's 2.46 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.4Moderate
162.4Moderate
172.4Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.5Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in December

Is December a good time to visit Gorgān?

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

1.2
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 Gorgān.

What to pack for Gorgān in December

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

In December, Gorgān sees daytime highs around 8°C and nights near -0°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 9 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Gorgān in December

The nearest coast averages about 15°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 59 km away) is warmest in August at about 29°C and coldest in February near 11°C.

It's comfortable for a long swim from May 13 to Nov 6 — about 5.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb11Bracing
Mar12Bracing
Apr16Cool
May21Refreshing
Jun25Warm
Jul28Warm
Aug29Tropical
Sep27Warm
Oct23Refreshing
Nov19Cool
Dec15Bracing

UV index in Gorgān 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 Gorgān peaks around July 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJul 17UV 10Jan 11UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun8Very high
Jul10Extreme
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec3Moderate

Air quality in Gorgān 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 Gorgān is worst in September — around 27 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1827 µg/m³Dec 2319 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb20Moderate
Mar22Moderate
Apr25Moderate
May22Moderate
Jun20Moderate
Jul21Moderate
Aug22Moderate
Sep27Moderate
Oct24Moderate
Nov21Moderate
Dec19Moderate
Location & terrain

Where is Gorgān?

Gorgān sits at 36.8°N, 54.4°E, 140 m above sea level, in Iran. The nearest listed city is Āq Qalā, 19 km away.

Topography around Gorgān

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

Within 3 km, the terrain around Gorgān has only modest variations in elevation — a maximum elevation change of 247 m around an average of 132 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,355 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,905 m.

The land around Gorgān is covered by artificial surfaces (68%) within 3 km, cropland (55%) and trees (33%) within 16 km, and bare terrain (30%) and cropland (24%) within 80 km.

3 km
247 m
16 km
2,355 m
80 km
3,905 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Āq Qalā 19 km · Sīmīn Shahr 27 km · Fāẕelābād 28 km · Kord Kūy 30 km · Bandar-e Torkaman 34 km · 'Alī Ābād-e Katūl 38 km · Gomīshān 41 km · Bandar-e Gaz 45 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 Gorgān (36.8427°, 54.4439°, elevation 140 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).