Harsīn weather in December

In December, Harsīn sees average daytime highs of 9°C and overnight lows near -1°C, with 71 mm of precipitation across 8.8 wet days and about 9.8 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 10°C in the first days to 7°C by the end. The sky is clear or mostly clear about 42% 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 42 min by month's end. Set against the rest of the year, December is Harsīn's 9th-clearest and 12th-windiest month. For the whole year in context, see Harsīn's year-round climate.

Daytime high
10th warmest
Overnight low
-1°
3rd coldest
Precipitation
71 mm
8.8 wet days
Daylight
9 h 42 min
7:24 AM – 5:08 PM
Cloud cover
50%
9th clearest
Wind
5 km/h
12th windiest
Solar energy
2.75 kWh/m²
Travel score
1.8
out of 10

Harsīn is city in Kermanshah Province, Iran.

Founded
~550 BCE

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 10°C in the first days to 7°C by the end.

A typical December day in Harsīn reaches about 9°C in the afternoon and slips back to -1°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 13°C. Set against its neighbours, December runs about 6°C cooler than November and about 3°C warmer than January.

-10°10°20°151015202531
Avg high (°C)Avg low (°C)
1111
2111
3101
4101
5101
6100
7100
8100
990
1090
1190
1290
1390
1490
159-1
168-1
178-1
188-1
198-1
208-1
218-1
228-1
238-1
248-2
258-2
268-2
278-2
287-2
297-2
307-2
317-2

How December really feels in Harsīn

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.

Harsīn 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 / -4°7710.27.4100.3
Feb / -2°8411.26.410.71.3
Mar13° / 9912.13.311.73.5
Apr18° / 81120.112.85.7
May24° / 11°316.8013.87.6
Jun32° / 16°20.7014.25.7
Jul36° / 20°00.1014.12.9
Aug36° / 19°00.1013.33.0
Sep31° / 15°10.4012.26.3
Oct23° / 10°294.8011.18.1
Nov14° / 708.40.410.24.6
Dec / -1°718.83.99.81.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% 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 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25743
35743
45644
55644
65545
75446
85446
95446
105446
115347
125347
135347
145446
155446
165446
175446
185545
195545
205545
215644
225644
235743
245743
255644
265644
275644
285545
295545
305545
315545

Chance of precipitation in December

Any precipitationSnow

Harsīn gets around 71 mm of rain and snow over 8.8 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 28% and peaks near 30% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1296
2297
3297
4298
5298
6309
7309
83010
93011
103011
113012
123012
132912
142913
152913
162814
172814
182814
192814
202714
212714
222714
232614
242614
252615
262615
272615
282615
292715
302716
312816

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, the calmest month.

Across December, daily wind ranges from about 5 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
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
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 54 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 12 minutes over December. Sunrise moves from 7:13 AM to 7:31 AM, and sunset from 5:06 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:135:06
29.97:145:06
39.87:155:06
49.87:165:06
59.87:165:06
69.87:175:06
79.87:185:06
89.87:195:06
99.87:195:06
109.87:205:06
119.87:215:06
129.77:225:06
139.77:225:07
149.77:235:07
159.77:245:07
169.77:245:08
179.77:255:08
189.77:255:08
199.77:265:09
209.77:265:09
219.77:275:09
229.77:275:10
239.77:285:10
249.77:285:11
259.77:295:11
269.77:295:12
279.77:295:13
289.77:305:13
299.77:305:14
309.77:305:14
319.77:315:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.75 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.75 kWh/m² to a high of 8.08 kWh/m² in June across the year — December's 2.75 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.9Moderate
42.8Moderate
52.8Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.8Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.8Moderate
202.8Moderate
212.8Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in December

Hazard calendar for Harsīn

In seasonPeak

In December, Harsīn sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Harsīn's rainy season runs November–April, when most of the year's rain falls.

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

Is December a good time to visit Harsīn?

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

1.8
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 Harsīn.

What to pack for Harsīn in December

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

In December, Harsīn sees daytime highs around 9°C and nights near -1°C. Pack a warm layer. Worth having: rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Harsīn 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 Harsīn peaks around August 13 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 highModerateAug 13UV 11Jan 10UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar5High
Apr7Very high
May10Very high
Jun11Extreme
Jul10Extreme
Aug11Extreme
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Harsīn 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 Harsīn is worst in April — around 37 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 2337 µg/m³Jan 126 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb28Moderate
Mar34Moderate
Apr37Poor
May37Poor
Jun30Moderate
Jul29Moderate
Aug28Moderate
Sep29Moderate
Oct30Moderate
Nov26Moderate
Dec26Moderate
Location & terrain

Where is Harsīn?

Harsīn sits at 34.3°N, 47.6°E, 1,551 m above sea level, in Iran. The nearest listed city is Şaḩneh, 25 km away.

Topography around Harsīn

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

Within 3 km, the terrain around Harsīn has significant variations in elevation — a maximum elevation change of 576 m around an average of 1,608 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,422 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,590 m.

The land around Harsīn is covered by cropland (50%) and grassland (24%) within 3 km, grassland (57%) and cropland (38%) within 16 km, and grassland (55%) and cropland (38%) within 80 km.

3 km
576 m
16 km
1,422 m
80 km
2,590 m
treesgrasslandcroplandartificial surfacesbare terrain
December weather nearby: Şaḩneh 25 km · Nūrābād 42 km · Kangāvar 43 km · Kermanshah 48 km · Sonqor 57 km · Nahāvand 73 km · Asadābād 75 km · Aleshtar 77 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 Harsīn (34.2721°, 47.5861°, elevation 1,551 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).