Hamadan weather in December

In December, Hamadan sees average daytime highs of 6°C and overnight lows near -3°C, with 48 mm of precipitation across 7.8 wet days and about 9.7 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 7°C in the first days to 4°C by the end. The sky is clear or mostly clear about 43% 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 42 min by month's end. Set against the rest of the year, December is Hamadan's 9th-clearest and 11th-windiest month. For the whole year in context, see Hamadan's year-round climate.

Daytime high
10th warmest
Overnight low
-3°
3rd coldest
Precipitation
48 mm
7.8 wet days
Daylight
9 h 42 min
7:22 AM – 5:02 PM
Cloud cover
47%
9th clearest
Wind
6 km/h
11th windiest
Solar energy
2.89 kWh/m²
Travel score
0.3
out of 10

Hamadan is city in Hamadan Province, Iran.

Air quality
High
PM2.5 26.7 µg/m³ · 2016

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 7°C in the first days to 4°C by the end.

A typical December day in Hamadan reaches about 6°C in the afternoon and slips back to -3°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 0°C and 11°C. Set against its neighbours, December runs about 6°C cooler than November and about 3°C warmer than January.

-10°10°151015202531
Avg high (°C)Avg low (°C)
18-1
28-1
37-1
47-1
57-2
67-2
77-2
86-2
96-2
106-2
116-2
126-2
136-3
145-3
155-3
165-3
175-3
185-3
195-3
205-3
215-3
225-3
235-4
245-4
255-4
265-4
274-4
284-4
294-4
304-4
314-4

How December really feels in Hamadan

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.

Hamadan 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 / -6°488.88.49.90.0
Feb / -4°559.78.610.70.2
Mar10° / 77126.311.72.2
Apr16° / 6913.41.212.84.6
May22° / 10°399.4013.87.1
Jun29° / 15°51.5014.36.9
Jul33° / 19°20.5014.14.4
Aug33° / 18°10.6013.34.8
Sep28° / 13°20.7012.27.9
Oct20° / 265.8011.17.5
Nov11° / 508.32.210.23.1
Dec / -3°487.86.19.70.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 40%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26040
36040
45941
55941
65842
75842
85842
95743
105743
115743
125842
135842
145842
155941
165941
176040
186040
196040
206139
216238
226238
236238
246238
256139
266139
276040
286040
296040
306040
316040

Chance of precipitation in December

Any precipitationSnow

Hamadan gets around 48 mm of rain and snow over 7.8 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 25% and peaks near 28% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
12717
22717
32718
42718
52719
62719
72720
82820
92820
102821
112721
122721
132721
142721
152621
162621
172621
182520
192520
202420
212420
222320
232319
242319
252219
262219
272219
282319
292320
302320
312421

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.

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 48 min at the start of December to 9 h 42 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 7:11 AM to 7:28 AM, and sunset from 5:01 PM to 5:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.87:115:01
29.87:125:01
39.87:125:01
49.87:135:01
59.87:145:01
69.87:155:01
79.87:165:01
89.77:165:01
99.77:175:01
109.77:185:01
119.77:195:01
129.77:195:01
139.77:205:02
149.77:215:02
159.77:215:02
169.77:225:02
179.77:225:03
189.77:235:03
199.77:245:03
209.77:245:04
219.77:255:04
229.77:255:05
239.77:265:05
249.77:265:06
259.77:265:06
269.77:275:07
279.77:275:07
289.77:275:08
299.77:285:09
309.77:285:09
319.77:285:10

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.89 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.89 kWh/m² to a high of 7.92 kWh/m² in June across the year — December's 2.89 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
13.0Moderate
22.9Moderate
32.9Moderate
42.9Moderate
52.9Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.9Moderate
232.9Moderate
243.0Moderate
253.0Moderate
263.0Moderate
273.0Moderate
283.0Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in December

Is December a good time to visit Hamadan?

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

0.3
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 Hamadan.

What to pack for Hamadan in December

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

In December, Hamadan sees daytime highs around 6°C and nights near -3°C. Pack a warm layer. Worth having: a heavy coat. About 8 days see rain.

a warm layera heavy coat

UV index in Hamadan 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 Hamadan peaks around July 18 at about 12 (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 highHighModerateJul 18UV 12Jan 10UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May10Very high
Jun11Extreme
Jul12Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Hamadan 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 Hamadan is worst in April — around 35 µg/m³ PM2.5 (poor), about 1.6× the cleanest month (August, 22 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Hamadan's WHO annual average of 26.7 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateApr 2035 µg/m³Aug 1922 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb26Moderate
Mar31Moderate
Apr35Poor
May34Moderate
Jun26Moderate
Jul27Moderate
Aug22Moderate
Sep25Moderate
Oct25Moderate
Nov23Moderate
Dec23Moderate
Location & terrain

Where is Hamadan?

Hamadan sits at 34.8°N, 48.5°E, 1,820 m above sea level, in Iran. The nearest listed city is Bahār, 14 km away.

Topography around Hamadan

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

Within 3 km, the terrain around Hamadan has only modest variations in elevation — a maximum elevation change of 184 m around an average of 1,829 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,861 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,193 m.

The land around Hamadan is covered by artificial surfaces (80%) within 3 km, grassland (41%) and cropland (29%) within 16 km, and cropland (56%) and grassland (29%) within 80 km.

3 km
184 m
16 km
1,861 m
80 km
2,193 m
treesgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Bahār 14 km · Tūyserkān 28 km · Asadābād 36 km · Kabūdarāhang 49 km · Kangāvar 60 km · Malāyer 62 km · Nahāvand 69 km · Qorveh 76 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 Hamadan (34.7992°, 48.5146°, elevation 1,820 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).