Khorramshahr weather in December

In December, Khorramshahr sees average daytime highs of 20°C and overnight lows near 10°C, with 37 mm of rain across 4.8 wet days and about 10.1 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 19°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 10 h 12 min at the start of December to 10 h 06 min by month's end. Set against the rest of the year, December is Khorramshahr's 11th-clearest and 11th-windiest month. For the whole year in context, see Khorramshahr's year-round climate.

Daytime high
20°
11th warmest
Overnight low
10°
2nd coldest
Rainfall
37 mm
4.8 wet days
Daylight
10 hours
7:12 AM – 5:15 PM
Cloud cover
36%
11th clearest
Wind
13 km/h
11th windiest
Solar energy
3.24 kWh/m²
Travel score
7.6
out of 10

Khorramshahr is city in Khuzestan Province, Iran.

Density
3,912/km²
people per km²

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 22°C in the first days to 19°C by the end.

A typical December day in Khorramshahr reaches about 20°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 25°C. Set against its neighbours, December runs about 6°C cooler than November and about 2°C warmer than January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12312
22212
32212
42212
52212
62211
72111
82111
92111
102111
112111
122111
132111
142010
152010
162010
172010
182010
192010
202010
212010
222010
232010
242010
252010
262010
272010
282010
29199
30199
31199

How December really feels in Khorramshahr

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.

Khorramshahr 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 daysDaylight (hours)Travel score
Jan19° / 385.310.37.1
Feb22° / 11°213.410.98.1
Mar27° / 15°253.411.87.8
Apr34° / 21°101.912.74.0
May41° / 27°40.713.50.4
Jun45° / 30°00.113.90.0
Jul47° / 32°00.113.80.0
Aug47° / 31°00.113.10.0
Sep43° / 27°00.112.20.0
Oct36° / 22°60.711.32.4
Nov27° / 15°413.710.57.5
Dec20° / 10°374.810.17.6

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 13% of December, with mostly cloudy or overcast conditions the remaining 28%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27129
37129
47129
57129
67129
77030
87129
97129
107129
117129
127129
137228
147228
157327
167327
177327
187327
197426
207426
217426
227426
237327
247327
257228
267129
277129
287030
296931
306931
316931

Chance of precipitation in December

Any precipitation

Khorramshahr gets around 37 mm of rain over 4.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 15% and peaks near 18% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
217
318
418
518
618
718
818
918
1018
1118
1217
1317
1417
1516
1616
1716
1815
1915
2014
2114
2213
2313
2413
2512
2612
2712
2813
2913
3013
3113

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 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1731791
2731791
3731791
4731890
5751780
6751780
7751780
8751780
9751780
10771670
11771670
12781570
13791560
14801460
15801460
16821350
17821350
18841240
19841240
20841240
21861130
22861130
23861130
24881020
25881020
26881020
27881020
28881020
29881020
30881020
31881020

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 12 min at the start of December to 10 h 06 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 7:02 AM to 7:19 AM, and sunset from 5:12 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.27:025:12
210.27:035:12
310.27:035:12
410.17:045:12
510.17:055:12
610.17:065:12
710.17:065:13
810.17:075:13
910.17:085:13
1010.17:085:13
1110.17:095:13
1210.17:105:14
1310.17:105:14
1410.17:115:14
1510.07:125:14
1610.07:125:15
1710.07:135:15
1810.07:135:15
1910.07:145:16
2010.07:145:16
2110.07:155:17
2210.07:155:17
2310.07:165:18
2410.07:165:18
2510.07:175:19
2610.07:175:19
2710.07:175:20
2810.07:185:20
2910.07:185:21
3010.17:185:22
3110.17:195:22

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.24 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.24 kWh/m² to a high of 7.82 kWh/m² in June across the year — December's 3.24 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.3Moderate
83.3Moderate
93.2Moderate
103.2Moderate
113.2Moderate
123.2Moderate
133.2Moderate
143.2Moderate
153.2Moderate
163.2Moderate
173.2Moderate
183.2Moderate
193.2Moderate
203.2Moderate
213.2Moderate
223.2Moderate
233.2Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.3Moderate
293.3Moderate
303.2Moderate
313.2Moderate
Planning a trip in December

Hazard calendar for Khorramshahr

In seasonPeak

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

Khorramshahr sees seasonal dust haze (March–July), heaviest in May.

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

Is December a good time to visit Khorramshahr?

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

7.6
Sightseeing
3rd-best month of the year
4.3
Beach & pool
6th-best month of the year

December is one of the better times to visit Khorramshahr for general sightseeing.

What to pack for Khorramshahr in December

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

In December, Khorramshahr sees daytime highs around 20°C and nights near 10°C. Little to plan around — just the basics. About 5 days see rain.

Sea temperature near Khorramshahr in December

The nearest coast averages about 19°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 66 km away) is warmest in August at about 32°C and coldest in February near 16°C.

It's comfortable for a long swim from Apr 1 to Dec 9 — about 8.3 months when the water holds above 20°C.

20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar18Cool
Apr22Refreshing
May26Warm
Jun29Tropical
Jul31Tropical
Aug32Tropical
Sep31Tropical
Oct28Tropical
Nov24Refreshing
Dec19Cool

UV index in Khorramshahr 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 Khorramshahr peaks around June 22 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highHighModerateJun 22UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May7High
Jun11Extreme
Jul10Extreme
Aug9Very high
Sep7High
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Khorramshahr 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 Khorramshahr is worst in April — around 70 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyApr 1170 µg/m³Jun 2254 µg/m³
PM2.5 (µg/m³)Level
Jan68Unhealthy
Feb64Unhealthy
Mar70Unhealthy
Apr70Unhealthy
May67Unhealthy
Jun54Poor
Jul55Poor
Aug59Unhealthy
Sep62Unhealthy
Oct66Unhealthy
Nov62Unhealthy
Dec66Unhealthy
Location & terrain

Where is Khorramshahr?

Khorramshahr sits at 30.4°N, 48.2°E, 4 m above sea level, in Iran. The nearest listed city is Abadan, 16 km away.

Topography around Khorramshahr

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

Within 3 km, the terrain around Khorramshahr has only modest variations in elevation — a maximum elevation change of 8 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 14 m; within 80 km, only modest variations in elevation — a maximum elevation change of 135 m.

The land around Khorramshahr is covered by artificial surfaces (49%) and bare terrain (30%) within 3 km, bare terrain (67%) within 16 km, and bare terrain (67%) within 80 km.

3 km
8 m
16 km
14 m
80 km
135 m
treesshrubscroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Abadan 16 km · Abū al-Kahṣīb 29 km · Al Başrah al Qadīmah 36 km · Basrah 39 km · Al Hārithah 44 km · Az Zubayr 47 km · Shādegān 52 km · Umm Qaşr 52 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 Khorramshahr (30.4408°, 48.1843°, elevation 4 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).