Mary weather in December

In December, Mary sees average daytime highs of 11°C and overnight lows near 1°C, with 14 mm of precipitation across 3.3 wet days and about 9.5 hours of daylight. It is the 11th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 11°C through the month. The sky is clear or mostly clear about 47% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of December to 9 h 24 min by month's end. Set against the rest of the year, December is Mary's 8th-clearest and 9th-windiest month. For the whole year in context, see Mary's year-round climate.

Daytime high
11°
11th warmest
Overnight low
2nd coldest
Precipitation
14 mm
3.3 wet days
Daylight
9 h 24 min
8:06 AM – 5:31 PM
Cloud cover
47%
8th clearest
Wind
10 km/h
9th windiest
Solar energy
2.34 kWh/m²
Travel score
3.2
out of 10

Mary is city of Mary Province in Turkmenistan.

Founded
1884

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 11°C through the month.

A typical December day in Mary reaches about 11°C in the afternoon and slips back to 1°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 19°C. Set against its neighbours, December runs about 5°C cooler than November and about 1°C warmer than January.

-10°10°20°151015202531
Avg high (°C)Avg low (°C)
1122
2122
3122
4122
5122
6112
7112
8111
9111
10111
11111
12111
13111
14111
15111
16111
17111
18111
19111
20111
21111
22111
23111
24111
25111
26111
27111
28111
29111
30111
31111

How December really feels in Mary

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Mary weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 204.51.89.72.7
Feb13° / 295.81.510.63.8
Mar18° / 386.70.311.76.3
Apr25° / 12°245012.97.6
May31° / 17°102.60145.6
Jun36° / 21°10.3014.52.9
Jul37° / 23°00.2014.31.9
Aug36° / 21°00.1013.43.1
Sep31° / 15°10.2012.36.5
Oct24° / 10°61.50118.9
Nov16° / 153.30.3106.2
Dec11° / 143.30.69.53.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% 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 41%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26436
36436
46337
56238
66238
76238
86139
96040
106040
116040
125941
135941
145842
155743
165743
175743
185743
195644
205644
215743
225743
235842
245842
255842
265941
275941
285941
295941
305941
316040

Chance of precipitation in December

Any precipitationSnow

Mary gets around 14 mm of rain and snow over 3.3 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 11% and peaks near 12% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1112
2112
3112
4102
5102
6102
7102
8112
9112
10112
11112
12122
13122
14122
15122
16122
17122
18122
19122
20122
21122
22122
23112
24112
25112
26112
27112
28112
29122
30122
31123

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 10 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 36 min at the start of December to 9 h 24 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 7:55 AM to 8:13 AM, and sunset from 5:30 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:555:30
29.67:565:30
39.67:565:30
49.57:575:30
59.57:585:30
69.57:595:30
79.58:005:30
89.58:015:30
99.58:015:30
109.58:025:30
119.58:035:30
129.48:045:30
139.48:045:31
149.48:055:31
159.48:065:31
169.48:065:31
179.48:075:32
189.48:085:32
199.48:085:32
209.48:095:33
219.48:095:33
229.48:105:34
239.48:105:34
249.48:115:35
259.48:115:35
269.48:115:36
279.48:125:36
289.48:125:37
299.48:125:38
309.48:135:38
319.48:135:39

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.34 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 7.7 kWh/m² in July across the year — December's 2.34 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.4Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.3Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in December

Hazard calendar for Mary

In seasonPeak

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

Mary sees seasonal dust haze (April–August), heaviest in July.

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

Is December a good time to visit Mary?

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

3.2
Sightseeing
8th-best month of the year
0.0
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Mary.

What to pack for Mary in December

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

In December, Mary sees daytime highs around 11°C and nights near 1°C. Pack a warm layer. About 3 days see rain.

a warm layer

UV index in Mary 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 Mary peaks around June 22 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 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 highModerateJun 22UV 10Jan 11UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May7High
Jun10Very high
Jul9Very high
Aug8Very high
Sep7Very high
Oct4Moderate
Nov3Moderate
Dec2Moderate

Air quality in Mary 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 Mary is worst in July — around 65 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (January, 32 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorJul 1864 µg/m³Jan 1833 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb35Poor
Mar48Poor
Apr50Poor
May49Poor
Jun48Poor
Jul65Unhealthy
Aug54Poor
Sep48Poor
Oct41Poor
Nov39Poor
Dec36Poor
Location & terrain

Where is Mary?

Mary sits at 37.6°N, 61.8°E, 223 m above sea level, in Turkmenistan. The nearest listed city is Bayramaly, 30 km away.

TejenSarahsSarakhsKaka

Topography around Mary

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

Within 3 km, the terrain around Mary has only modest variations in elevation — a maximum elevation change of 17 m around an average of 222 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 38 m; within 80 km, only modest variations in elevation — a maximum elevation change of 182 m.

The land around Mary is covered by artificial surfaces (81%) within 3 km, cropland (63%) and artificial surfaces (23%) within 16 km, and bare terrain (42%) and cropland (31%) within 80 km.

3 km
17 m
16 km
38 m
80 km
182 m
shrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Bayramaly 30 km · Çaşgyn 34 km · Türkmengala 49 km · Yolöten 57 km · Tejen 119 km · Sarahs 131 km · Sarakhs 131 km · Kaka 197 km

Turkmenistan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type B / C / F
220 V · 50 Hz
Prices
≈ 0% of US
price level, 2025
GDP per capita
$6,540
2025
Happiness
5.5 / 10
World Happiness, 2021
Safe drinking water
95%
of population, 2024
Homicide rate
1
per 100k, 2015
Road deaths
13.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 456
Religion
Muslim 93%Christian 6%

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 Mary (37.5938°, 61.8303°, elevation 223 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. 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).