Behshahr weather in December

In December, Behshahr sees average daytime highs of 13°C and overnight lows near 6°C, with 60 mm of precipitation across 7.5 wet days and about 9.5 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 13°C by the end. The sky is clear or mostly clear about 45% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of December to 9 h 30 min by month's end. Set against the rest of the year, December is Behshahr's 7th-clearest and 10th-windiest month. For the whole year in context, see Behshahr's year-round climate.

Daytime high
13°
10th warmest
Overnight low
3rd coldest
Precipitation
60 mm
7.5 wet days
Daylight
9 h 30 min
7:07 AM – 4:37 PM
Cloud cover
49%
7th clearest
Wind
7 km/h
10th windiest
Solar energy
2.27 kWh/m²
Travel score
4.1
out of 10

Behshahr is city in Mazandaran province, Iran.

Founded
1906

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 14°C in the first days to 13°C by the end.

A typical December day in Behshahr reaches about 13°C in the afternoon and slips back to 6°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 18°C. Set against its neighbours, December runs about 4°C cooler than November and about 2°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1158
2148
3148
4147
5147
6147
7147
8147
9147
10147
11137
12137
13137
14136
15136
16136
17136
18136
19136
20136
21136
22136
23136
24136
25136
26136
27136
28135
29135
30135
31135

How December really feels in Behshahr

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.

Behshahr weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 647.41.49.83.3
Feb12° / 648.51.910.63.3
Mar15° / 71100.611.74.5
Apr19° / 12°507.9012.96.4
May24° / 17°336013.97.5
Jun28° / 21°254.3014.57.2
Jul30° / 24°254.7014.35.6
Aug31° / 24°224.6013.45.2
Sep28° / 21°718.2012.26.6
Oct23° / 16°787.6011.17.5
Nov17° / 10°878.70.3105.8
Dec13° / 607.50.49.54.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% 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 44%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35347
45248
55248
65149
75149
85149
95149
105149
115149
125248
135347
145347
155446
165545
175545
185644
195743
205842
215842
226040
236139
246139
256139
266238
276238
286238
296238
306238
316139

Chance of precipitation in December

Any precipitationSnow

Behshahr gets around 60 mm of rain and snow over 7.5 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 31% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1312
2302
3302
4292
5292
6291
7281
8281
9281
10271
11271
12261
13261
14261
15251
16251
17241
18241
19241
20231
21231
22221
23211
24211
25201
26201
27201
28192
29202
30202
31202

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 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 42 min at the start of December to 9 h 30 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 6:55 AM to 7:13 AM, and sunset from 4:36 PM to 4:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.76:554:36
29.76:564:36
39.66:574:36
49.66:584:35
59.66:594:35
69.67:004:35
79.67:004:35
89.67:014:35
99.67:024:36
109.57:034:36
119.57:044:36
129.57:044:36
139.57:054:36
149.57:064:36
159.57:064:37
169.57:074:37
179.57:074:37
189.57:084:38
199.57:094:38
209.57:094:38
219.57:104:39
229.57:104:39
239.57:114:40
249.57:114:40
259.57:114:41
269.57:124:41
279.57:124:42
289.57:134:43
299.57:134:43
309.57:134:44
319.57:134:45

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.27 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.27 kWh/m² to a high of 6.4 kWh/m² in June across the year — December's 2.27 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.3Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.3Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in December

Is December a good time to visit Behshahr?

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

4.1
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a reasonable time to visit Behshahr for sightseeing.

What to pack for Behshahr in December

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

In December, Behshahr sees daytime highs around 13°C and nights near 6°C. Worth packing: a warm layer. About 8 days see rain.

a warm layer

Sea temperature near Behshahr in December

The nearest coast averages about 15°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 21 km away) is warmest in August at about 29°C and coldest in February near 11°C.

It's comfortable for a long swim from May 16 to Nov 10 — about 5.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar12Bracing
Apr15Cool
May20Refreshing
Jun25Warm
Jul27Warm
Aug29Tropical
Sep27Warm
Oct24Refreshing
Nov19Cool
Dec15Cool

UV index in Behshahr in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Behshahr peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 18UV 9Jan 10UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May7Very high
Jun7Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Moderate

Air quality in Behshahr 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 Behshahr is worst in March — around 33 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 19 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1633 µg/m³Jul 1719 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb32Moderate
Mar33Moderate
Apr32Moderate
May28Moderate
Jun24Moderate
Jul19Moderate
Aug24Moderate
Sep32Moderate
Oct32Moderate
Nov30Moderate
Dec29Moderate
Location & terrain

Where is Behshahr?

Behshahr sits at 36.7°N, 53.6°E, 10 m above sea level, in Iran. The nearest listed city is Nekā, 23 km away.

Topography around Behshahr

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

Within 3 km, the terrain around Behshahr has significant variations in elevation — a maximum elevation change of 469 m around an average of 69 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,479 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,777 m.

The land around Behshahr is covered by trees (36%), artificial surfaces (36%) and cropland (23%) within 3 km, trees (43%) and cropland (32%) within 16 km, and water (32%) and trees (26%) within 80 km.

3 km
469 m
16 km
1,479 m
80 km
3,777 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Nekā 23 km · Galūgāh 23 km · Bandar-e Gaz 36 km · Sari 46 km · Kord Kūy 51 km · Bandar-e Torkaman 52 km · Jūybār 57 km · Gomīshān 63 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 Behshahr (36.6923°, 53.5526°, elevation 10 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).