Jūybār weather in December

In December, Jūybār sees average daytime highs of 14°C and overnight lows near 7°C, with 65 mm of rain across 7.5 wet days and about 9.5 hours of daylight. It is the 10th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 15°C in the first days to 13°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 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 Jūybār's 8th-clearest and 11th-windiest month. For the whole year in context, see Jūybār's year-round climate.

Daytime high
14°
10th warmest
Overnight low
3rd coldest
Rainfall
65 mm
7.5 wet days
Daylight
9 h 30 min
7:09 AM – 4:40 PM
Cloud cover
50%
8th clearest
Wind
8 km/h
11th windiest
Solar energy
2.24 kWh/m²
Travel score
4.4
out of 10

Jūybār is city in Mazandaran 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 15°C in the first days to 13°C by the end.

A typical December day in Jūybār reaches about 14°C in the afternoon and slips back to 7°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 10°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)
1159
2158
3158
4158
5158
6158
7158
8148
9148
10148
11147
12147
13147
14147
15147
16147
17147
18147
19147
20147
21147
22146
23146
24146
25136
26136
27136
28136
29136
30136
31136

How December really feels in Jūybār

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.

Jūybār weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 647.69.83.6
Feb13° / 577.910.63.6
Mar15° / 608.911.74.8
Apr19° / 12°386.512.96.7
May24° / 17°234.513.97.8
Jun29° / 22°163.214.56.9
Jul31° / 25°183.314.25.3
Aug32° / 25°183.813.44.8
Sep29° / 22°586.212.26.3
Oct24° / 17°757.411.17.5
Nov18° / 11°908.8106.1
Dec14° / 657.59.54.4

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 14% of December, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35347
45248
55248
65149
75149
85149
95248
105248
115248
125347
135347
145446
155446
165545
175545
185644
195743
205743
215842
225842
235941
246040
256139
266139
276139
286040
296139
306040
316040

Chance of precipitation in December

Any precipitation

Jūybār gets around 65 mm of rain 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 rain averages around 25% and peaks near 31% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
330
430
530
629
729
828
928
1028
1127
1227
1326
1425
1525
1624
1724
1823
1923
2022
2122
2221
2321
2420
2520
2620
2720
2820
2920
3020
3121

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 (%)Comfortable (%)
1991
2991
3991
4991
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in December

Winds average 8 km/h in December.

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.

0246810151015202531
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 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 6:58 AM to 7:16 AM, and sunset from 4:38 PM to 4:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.76:584:38
29.76:594:38
39.67:004:38
49.67:004:38
59.67:014:38
69.67:024:38
79.67:034:38
89.67:044:38
99.67:044:38
109.67:054:38
119.57:064:39
129.57:074:39
139.57:074:39
149.57:084:39
159.57:094:39
169.57:094:40
179.57:104:40
189.57:104:40
199.57:114:41
209.57:124:41
219.57:124:42
229.57:134:42
239.57:134:43
249.57:134:43
259.57:144:44
269.57:144:44
279.57:154:45
289.57:154:45
299.57:154:46
309.57:154:47
319.57:164:47

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.24 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 6.35 kWh/m² in June across the year — December's 2.24 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.3Moderate
42.3Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.4Moderate
Planning a trip in December

Hazard calendar for Jūybār

In seasonPeak

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

Jūybār's rainy season runs September–March, 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 Jūybār?

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

4.4
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a reasonable time to visit Jūybār for sightseeing.

What to pack for Jūybār in December

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

In December, Jūybār sees daytime highs around 14°C and nights near 7°C. Worth packing: a warm layer. About 8 days see rain.

a warm layer

Sea temperature near Jūybār 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 26 km away) is warmest in August at about 28°C and coldest in February near 11°C.

It's comfortable for a long swim from May 19 to Nov 10 — about 5.8 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar12Bracing
Apr14Bracing
May20Cool
Jun25Warm
Jul27Warm
Aug28Tropical
Sep27Warm
Oct23Refreshing
Nov19Cool
Dec15Cool

UV index in Jūybār 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 Jūybār peaks around July 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May7Very high
Jun7Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Moderate

Air quality in Jūybār 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 Jūybār 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 Jūybār?

Jūybār sits at 36.6°N, 52.9°E, -7 m above sea level, in Iran. The nearest listed city is Sari, 16 km away.

Topography around Jūybār

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

Within 3 km, the terrain around Jūybār has only modest variations in elevation — a maximum elevation change of 12 m around an average of -10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 110 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,003 m.

The land around Jūybār is covered by cropland (39%), trees (27%) and artificial surfaces (25%) within 3 km, cropland (54%) within 16 km, and water (41%) and trees (32%) within 80 km.

3 km
12 m
16 km
110 m
80 km
4,003 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Sari 16 km · Qā’em Shahr 20 km · Amīr Kolā 23 km · Bābol 23 km · Bābolsar 24 km · Nekā 35 km · Fereydūn Kenār 35 km · Zīr Āb 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 Jūybār (36.6409°, 52.9121°, elevation -7 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).