Sultanbeyli weather in December

In December, Sultanbeyli sees average daytime highs of 10°C and overnight lows near 7°C, with 100 mm of precipitation across 13.1 wet days and about 9.1 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 12°C in the first days to 9°C by the end. The sky is clear or mostly clear about 22% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of December to 9 h 06 min by month's end. Set against the rest of the year, December is Sultanbeyli's 12th-clearest and 1st-windiest month. For the whole year in context, see Sultanbeyli's year-round climate.

Daytime high
10°
10th warmest
Overnight low
4th coldest
Precipitation
100 mm
13.1 wet days
Daylight
9 h 06 min
7:27 AM – 4:31 PM
Cloud cover
68%
12th clearest
Wind
16 km/h
1st windiest
Solar energy
1.44 kWh/m²
Travel score
2.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 12°C in the first days to 9°C by the end.

A typical December day in Sultanbeyli reaches about 10°C in the afternoon and slips back to 7°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 14°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)
1129
2129
3129
4128
5118
6118
7118
8118
9118
10118
11117
12107
13107
14107
15107
16107
17107
18107
19107
20107
21107
22106
23106
2496
2596
2696
2796
2896
2996
3096
3196

Sultanbeyli 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 daysSnow daysDaylight (hours)Travel score
Jan / 8712.839.41.4
Feb / 7011.92.510.41.5
Mar11° / 7310.60.911.72.5
Apr15° / 10°488.10.113.14.6
May19° / 14°356.2014.37.0
Jun24° / 19°356.1014.98.0
Jul27° / 22°253.7014.68.3
Aug27° / 22°243.6013.68.2
Sep24° / 19°486.5012.37.9
Oct19° / 15°758.9010.96.4
Nov14° / 11°739.80.19.74.3
Dec10° / 10013.11.49.12.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33862
43763
53763
63763
73664
83565
93466
103466
113565
123565
133565
143466
153466
163466
173367
183367
193367
203367
213367
223268
233268
243268
253367
263367
273367
283268
293268
303268
313268

Chance of precipitation in December

Any precipitationSnow

Sultanbeyli gets around 100 mm of rain and snow over 13.1 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 precipitation averages around 43% and peaks near 45% on the wettest days, and about 1 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1391
2401
3402
4402
5412
6412
7413
8423
9423
10423
11434
12434
13434
14444
15444
16445
17445
18445
19445
20435
21435
22435
23436
24446
25446
26447
27447
28447
29458
30458
31459

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 16 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 18 min at the start of December to 9 h 06 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 7:14 AM to 7:33 AM, and sunset from 4:31 PM to 4:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.37:144:31
29.37:154:31
39.27:164:30
49.27:174:30
59.27:184:30
69.27:194:30
79.27:204:30
89.27:214:30
99.17:224:30
109.17:234:30
119.17:234:30
129.17:244:30
139.17:254:31
149.17:264:31
159.17:264:31
169.17:274:31
179.17:284:31
189.17:284:32
199.17:294:32
209.17:294:33
219.17:304:33
229.17:304:33
239.17:314:34
249.17:314:34
259.17:324:35
269.17:324:36
279.17:324:36
289.17:334:37
299.17:334:37
309.17:334:38
319.17:334:39

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.44 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.44 kWh/m² to a high of 6.81 kWh/m² in July across the year — December's 1.44 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.6Dim
21.6Dim
31.6Dim
41.5Dim
51.5Dim
61.5Dim
71.5Dim
81.5Dim
91.5Dim
101.5Dim
111.4Dim
121.4Dim
131.4Dim
141.4Dim
151.4Dim
161.4Dim
171.4Dim
181.4Dim
191.4Dim
201.4Dim
211.4Dim
221.4Dim
231.4Dim
241.4Dim
251.4Dim
261.4Dim
271.4Dim
281.4Dim
291.5Dim
301.5Dim
311.5Dim
Planning a trip in December

Is December a good time to visit Sultanbeyli?

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

2.2
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Sultanbeyli.

What to pack for Sultanbeyli in December

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

In December, Sultanbeyli sees daytime highs around 10°C and nights near 7°C. Pack a warm layer. Worth having: rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Sultanbeyli in December

The nearest coast averages about 12°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 16 km away) is warmest in August at about 24°C and coldest in February near 8°C.

It's comfortable for a long swim from Jun 12 to Oct 6 — about 3.8 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar9Bracing
Apr11Bracing
May16Cool
Jun21Refreshing
Jul23Refreshing
Aug24Warm
Sep22Refreshing
Oct19Cool
Nov15Cool
Dec12Bracing

UV index in Sultanbeyli 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 Sultanbeyli peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowJul 17UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Sultanbeyli 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 Sultanbeyli is worst in March — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 1917 µg/m³Jul 189 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar17Moderate
Apr16Moderate
May13Moderate
Jun10Good
Jul9Good
Aug10Good
Sep10Good
Oct11Good
Nov11Good
Dec10Good
Location & terrain

Where is Sultanbeyli?

Sultanbeyli sits at 41.0°N, 29.3°E, 151 m above sea level, in Turkey. The nearest listed city is Sancaktepe, 6.0 km away.

Topography around Sultanbeyli

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

Within 3 km, the terrain around Sultanbeyli has significant variations in elevation — a maximum elevation change of 402 m around an average of 193 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 541 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,604 m.

The land around Sultanbeyli is covered by artificial surfaces (58%) and trees (38%) within 3 km, trees (38%) and artificial surfaces (33%) within 16 km, and water (47%) and trees (34%) within 80 km.

3 km
402 m
16 km
541 m
80 km
1,604 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Sancaktepe 6.0 km · Maltepe 10 km · Ataşehir 13 km · Umraniye 14 km · Gebze 22 km · Çubuklu 22 km · Üsküdar 23 km · İstinye 25 km

Turkey travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$18,599
2025
Happiness
5.3 / 10
World Happiness, 2025
Homicide rate
3.2
per 100k, 2023
Road deaths
6.7
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 488
Religion
Muslim 100%other 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 Sultanbeyli (40.9607°, 29.2707°, elevation 151 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).