Bandar-e Deylam weather in December

In December, Bandar-e Deylam sees average daytime highs of 20°C and overnight lows near 12°C, with 89 mm of rain across 6.4 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 22°C in the first days to 19°C by the end. The sky is clear or mostly clear about 60% 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 Bandar-e Deylam's 11th-clearest and 10th-windiest month. For the whole year in context, see Bandar-e Deylam's year-round climate.

Daytime high
20°
10th warmest
Overnight low
12°
3rd coldest
Rainfall
89 mm
6.4 wet days
Daylight
10 h 06 min
7:03 AM – 5:08 PM
Cloud cover
35%
11th clearest
Wind
12 km/h
10th windiest
Solar energy
3.31 kWh/m²
Travel score
7.4
out of 10

Bandar-e Deylam is city in Bushehr 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 22°C in the first days to 19°C by the end.

A typical December day in Bandar-e Deylam reaches about 20°C in the afternoon and slips back to 12°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°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)
12214
22213
32213
42213
52213
62113
72113
82113
92113
102113
112112
122112
132012
142012
152012
162012
172012
182012
192012
202012
212012
222011
232011
242011
252011
261911
271911
281911
291911
301911
311911

How December really feels in Bandar-e Deylam

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.

Bandar-e Deylam 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° / 10°74710.36.8
Feb20° / 12°384.810.97.5
Mar24° / 15°344.311.88.3
Apr30° / 20°101.912.76.3
May36° / 25°40.313.52.4
Jun40° / 29°0013.90.0
Jul41° / 30°0013.70.0
Aug41° / 30°0013.10.0
Sep38° / 27°0012.21.2
Oct34° / 22°20.511.34.2
Nov26° / 16°584.210.57.7
Dec20° / 12°896.410.17.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% 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 29%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17327
27228
37228
47228
57228
67129
77030
87129
97129
107129
117129
127129
137129
147129
157129
167030
177030
187129
197129
207129
217129
227129
237129
247129
257129
267129
277129
287129
297030
307030
316931

Chance of precipitation in December

Any precipitation

Bandar-e Deylam gets around 89 mm of rain over 6.4 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 21% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
121
221
322
422
522
623
723
823
924
1024
1123
1223
1323
1423
1522
1622
1721
1821
1920
2019
2119
2218
2318
2417
2517
2617
2717
2817
2918
3018
3119

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 (%)
169247
270237
370237
470237
571227
671227
772217
874206
974206
1075196
1177185
1279174
1380164
1482153
1582153
1683143
1784142
1885132
1986131
2086131
2187121
2287121
2387121
2488120
2589110
2689110
2789110
2889110
2989110
3089110
3189110

Wind in December

Winds average 12 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
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light 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 6:53 AM to 7:10 AM, and sunset from 5:05 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.26:535:05
210.26:545:05
310.26:555:05
410.26:555:05
510.26:565:05
610.16:575:05
710.16:575:06
810.16:585:06
910.16:595:06
1010.17:005:06
1110.17:005:06
1210.17:015:07
1310.17:015:07
1410.17:025:07
1510.17:035:07
1610.17:035:08
1710.17:045:08
1810.17:045:08
1910.17:055:09
2010.17:055:09
2110.17:065:10
2210.17:065:10
2310.17:075:11
2410.17:075:11
2510.17:085:12
2610.17:085:12
2710.17:095:13
2810.17:095:13
2910.17:095:14
3010.17:105:15
3110.17:105:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.31 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.31 kWh/m² to a high of 7.82 kWh/m² in June across the year — December's 3.31 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.4Moderate
33.4Moderate
43.4Moderate
53.4Moderate
63.4Moderate
73.4Moderate
83.3Moderate
93.3Moderate
103.3Moderate
113.3Moderate
123.3Moderate
133.3Moderate
143.3Moderate
153.3Moderate
163.3Moderate
173.3Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.3Moderate
293.3Moderate
303.3Moderate
313.3Moderate
Planning a trip in December

Hazard calendar for Bandar-e Deylam

In seasonPeak

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

Bandar-e Deylam 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 Bandar-e Deylam?

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

7.4
Sightseeing
4th-best month of the year
4.1
Beach & pool
7th-best month of the year

December is one of the better times to visit Bandar-e Deylam for general sightseeing.

What to pack for Bandar-e Deylam in December

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

In December, Bandar-e Deylam sees daytime highs around 20°C and nights near 12°C. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near Bandar-e Deylam 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 offshore 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 Bandar-e Deylam 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 Bandar-e Deylam peaks around August 10 at about 9 (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 10UV 9Jan 1UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr6High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Bandar-e Deylam 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 Bandar-e Deylam is worst in May — around 43 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMay 1242 µg/m³Nov 2232 µg/m³
PM2.5 (µg/m³)Level
Jan36Poor
Feb38Poor
Mar41Poor
Apr41Poor
May43Poor
Jun37Poor
Jul41Poor
Aug40Poor
Sep37Poor
Oct36Poor
Nov32Moderate
Dec32Moderate
Location & terrain

Where is Bandar-e Deylam?

Bandar-e Deylam sits at 30.1°N, 50.2°E, 5 m above sea level, in Iran. The nearest listed city is Hendījān, 48 km away.

Topography around Bandar-e Deylam

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bandar-e Deylam.

Within 3 km, the terrain around Bandar-e Deylam has only modest variations in elevation — a maximum elevation change of 11 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 102 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,180 m.

The land around Bandar-e Deylam is covered by bare terrain (58%) and water (26%) within 3 km, water (41%) and bare terrain (36%) within 16 km, and grassland (36%), water (30%) and bare terrain (23%) within 80 km.

3 km
11 m
16 km
102 m
80 km
2,180 m
shrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Hendījān 48 km · Behbahān 61 km · Bandar-e Genāveh 63 km · Dogonbadan 70 km · Aghajari 78 km · Shahrak-e Ţāleqānī 87 km · Omīdīyeh 90 km · Dehdasht 91 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 Bandar-e Deylam (30.0542°, 50.159°, elevation 5 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).