Behbahān weather in December

In December, Behbahān sees average daytime highs of 20°C and overnight lows near 9°C, with 118 mm of rain across 7.4 wet days and about 10.1 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 21°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 hours by month's end. Set against the rest of the year, December is Behbahān's 10th-clearest and 12th-windiest month. For the whole year in context, see Behbahān's year-round climate.

Daytime high
20°
10th warmest
Overnight low
3rd coldest
Rainfall
118 mm
7.4 wet days
Daylight
10 hours
7:04 AM – 5:06 PM
Cloud cover
37%
10th clearest
Wind
8 km/h
12th windiest
Solar energy
3.22 kWh/m²
Travel score
7.0
out of 10

Behbahān is city in Khuzestan 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 21°C in the first days to 19°C by the end.

A typical December day in Behbahān reaches about 20°C in the afternoon and slips back to 9°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 24°C. Set against its neighbours, December runs about 6°C cooler than November and about 2°C warmer than January.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12211
22110
32110
42110
52110
62110
72110
82010
92010
10209
11209
12209
13209
14209
15209
16209
17199
18199
19199
20199
21198
22198
23198
24198
25198
26198
27198
28198
29198
30198
31198

How December really feels in Behbahān

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.

Behbahān weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan18° / 115910.26.2
Feb20° / 716.810.97.1
Mar24° / 12°70611.87.9
Apr31° / 17°283.712.75.6
May38° / 22°60.813.51.3
Jun43° / 26°0013.90.0
Jul45° / 28°00.113.80.0
Aug44° / 28°10.613.10.0
Sep41° / 24°10.812.20.2
Oct35° / 19°51.511.23.4
Nov26° / 13°785.410.57.5
Dec20° / 1187.410.17.0

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 11% of December, with mostly cloudy or overcast conditions the remaining 31%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
26832
36931
46832
56832
66832
76733
86733
96733
106733
116733
126832
136832
146832
156832
166931
176931
186931
197030
207030
217030
227030
237129
247129
257129
267030
277030
286832
296832
306733
316733

Chance of precipitation in December

Any precipitation

Behbahān gets around 118 mm of rain over 7.4 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
124
225
325
425
526
626
726
827
927
1027
1127
1227
1326
1426
1526
1625
1725
1824
1924
2023
2122
2222
2322
2421
2521
2621
2722
2822
2923
3023
3124

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 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19091
29091
39091
49091
59091
69091
79091
89181
99280
109280
119280
129370
139370
149460
159460
169550
179550
189640
199640
209730
219730
229820
239820
249820
259910
269910
279910
289910
299910
309910
319910

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 12 min at the start of December to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 6:54 AM to 7:11 AM, and sunset from 5:04 PM to 5:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.26:545:04
210.26:555:04
310.16:555:04
410.16:565:04
510.16:575:04
610.16:585:04
710.16:585:04
810.16:595:04
910.17:005:04
1010.17:005:05
1110.17:015:05
1210.17:025:05
1310.07:025:05
1410.07:035:05
1510.07:045:06
1610.07:045:06
1710.07:055:06
1810.07:055:07
1910.07:065:07
2010.07:065:08
2110.07:075:08
2210.07:075:09
2310.07:085:09
2410.07:085:10
2510.07:095:10
2610.07:095:11
2710.07:105:11
2810.07:105:12
2910.07:105:12
3010.07:115:13
3110.07:115:14

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.22 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.22 kWh/m² to a high of 7.92 kWh/m² in June across the year — December's 3.22 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.2Moderate
83.2Moderate
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
243.2Moderate
253.2Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.2Moderate
303.2Moderate
313.2Moderate
Planning a trip in December

Hazard calendar for Behbahān

In seasonPeak

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

Behbahān sees seasonal dust haze (March–May), heaviest in April.

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

Is December a good time to visit Behbahān?

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

7.0
Sightseeing
4th-best month of the year
3.5
Beach & pool
7th-best month of the year

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

What to pack for Behbahān in December

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

In December, Behbahān sees daytime highs around 20°C and nights near 9°C. Little to plan around — just the basics. About 7 days see rain.

Sea temperature near Behbahān in December

The nearest coast averages about 20°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 54 km away) is warmest in August at about 33°C and coldest in February near 16°C.

It's comfortable for a long swim from Apr 1 to Dec 14 — about 8.5 months when the water holds above 20°C.

20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar18Cool
Apr22Refreshing
May26Warm
Jun29Tropical
Jul31Tropical
Aug33Tropical
Sep32Tropical
Oct29Tropical
Nov24Warm
Dec20Cool

UV index in Behbahān 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 Behbahān peaks around August 11 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateAug 11UV 10Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb5High
Mar7High
Apr7High
May8Very high
Jun10Very high
Jul9Very high
Aug10Very high
Sep6High
Oct7High
Nov5Moderate
Dec3Moderate

Air quality in Behbahān 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 Behbahān is worst in April — around 45 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateApr 1545 µg/m³Dec 1733 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb38Poor
Mar44Poor
Apr45Poor
May43Poor
Jun34Moderate
Jul37Poor
Aug35Moderate
Sep34Moderate
Oct35Moderate
Nov34Moderate
Dec33Moderate
Location & terrain

Where is Behbahān?

Behbahān sits at 30.6°N, 50.2°E, 326 m above sea level, in Iran. The nearest listed city is Shahrak-e Ţāleqānī, 27 km away.

Topography around Behbahān

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

Within 3 km, the terrain around Behbahān has only modest variations in elevation — a maximum elevation change of 50 m around an average of 324 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 862 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,481 m.

The land around Behbahān is covered by artificial surfaces (56%) and cropland (30%) within 3 km, grassland (54%) and cropland (35%) within 16 km, and grassland (55%) and bare terrain (24%) within 80 km.

3 km
50 m
16 km
862 m
80 km
3,481 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Shahrak-e Ţāleqānī 27 km · Līkak 36 km · Dehdasht 38 km · Aghajari 41 km · Charām 51 km · Omīdīyeh 55 km · Dogonbadan 59 km · Bandar-e Deylam 61 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 Behbahān (30.5959°, 50.2417°, elevation 326 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).