Çatalca weather in January

In January, Çatalca sees average daytime highs of 8°C and overnight lows near 4°C, with 76 mm of precipitation across 11.5 wet days and about 9.4 hours of daylight. It is the 12th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 8°C through the month. The sky is clear or mostly clear about 24% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 06 min at the start of January to 9 h 48 min by month's end. Set against the rest of the year, January is Çatalca's 11th-clearest and 4th-windiest month. For the whole year in context, see Çatalca's year-round climate.

Daytime high
12th warmest
Overnight low
1st coldest
Precipitation
76 mm
11.5 wet days
Daylight
9 h 18 min
7:35 AM – 4:56 PM
Cloud cover
68%
11th clearest
Wind
17 km/h
4th windiest
Solar energy
1.75 kWh/m²
Travel score
1.4
out of 10

Çatalca is district of İstanbul, northwestern Turkey.

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 8°C through the month.

A typical January day in Çatalca reaches about 8°C in the afternoon and slips back to 4°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 13°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
195
295
395
494
594
684
784
884
984
1084
1184
1284
1384
1484
1584
1684
1784
1884
1984
2084
2184
2284
2384
2484
2584
2684
2784
2884
2984
3084
3184

How January really feels in Çatalca

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 15 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
15
wind chill below the day's low

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

Çatalca weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7611.52.89.41.4
Feb / 7011.12.810.41.7
Mar11° / 6910.5111.72.8
Apr15° / 457.5013.15.0
May20° / 14°376.6014.37.1
Jun25° / 18°335.7014.97.9
Jul28° / 21°264.3014.77.8
Aug28° / 22°224.7013.67.5
Sep24° / 18°546.8012.37.7
Oct20° / 14°879.1010.96.4
Nov15° / 10°699.109.74.4
Dec10° / 9312.71.79.12.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23565
33466
43466
53565
63565
73466
83466
93565
103565
113565
123565
133565
143565
153565
163664
173466
183466
193565
203565
213466
223466
233565
243565
253565
263565
273664
283664
293664
303664
313763

Chance of precipitation in January

Any precipitationSnow

Çatalca gets around 76 mm of rain and snow over 11.5 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 37% and peaks near 40% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1409
2399
33910
43910
53810
6389
7379
8379
9369
10369
11358
12358
13358
14348
15348
16348
17348
18358
19358
20368
21368
22379
23379
24379
253810
263810
273810
283810
293811
303811
313811

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January 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 January

Winds average 17 km/h in January.

Across January, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
118light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 06 min at the start of January to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over January. Sunrise moves from 7:37 AM to 7:26 AM, and sunset from 4:42 PM to 5:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.17:374:42
29.17:374:43
39.17:374:43
49.17:374:44
59.17:374:45
69.17:374:46
79.27:374:47
89.27:374:48
99.27:374:49
109.27:374:50
119.27:374:51
129.37:364:52
139.37:364:53
149.37:364:54
159.37:354:55
169.37:354:56
179.47:354:57
189.47:344:58
199.47:344:59
209.47:335:00
219.57:335:01
229.57:325:02
239.57:325:04
249.67:315:05
259.67:305:06
269.67:305:07
279.77:295:08
289.77:285:10
299.77:285:11
309.87:275:12
319.87:265:13

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.75 kWh/m².

For context, solar energy here swings from a low near 1.46 kWh/m² to a high of 6.99 kWh/m² in June across the year — January's 1.75 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.5Dim
21.5Dim
31.5Dim
41.5Dim
51.6Dim
61.6Dim
71.6Dim
81.6Dim
91.6Dim
101.6Dim
111.6Dim
121.7Dim
131.7Dim
141.7Dim
151.7Dim
161.8Dim
171.8Dim
181.8Dim
191.8Dim
201.8Dim
211.9Dim
221.9Dim
231.9Dim
241.9Dim
252.0Dim
262.0Dim
272.0Moderate
282.0Moderate
292.1Moderate
302.1Moderate
312.1Moderate
Planning a trip in January

Is January a good time to visit Çatalca?

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

1.4
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Çatalca.

What to pack for Çatalca in January

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

In January, Çatalca sees daytime highs around 8°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 12 days see rain.

a warm layerrain gear

Sea temperature near Çatalca in January

The nearest coast averages about 8°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 29 km away) is warmest in August at about 25°C and coldest in February near 7°C.

It's comfortable for a long swim from Jun 10 to Oct 7 — about 3.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan8Bracing
Feb7Bracing
Mar8Bracing
Apr10Bracing
May16Cool
Jun21Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Bracing
Dec11Bracing

UV index in Çatalca in January

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Çatalca peaks around July 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 13UV 9Dec 22UV 1
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr7Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Çatalca in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Çatalca is worst in March — around 16 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2015 µg/m³Jul 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar16Moderate
Apr15Moderate
May12Moderate
Jun10Good
Jul9Good
Aug10Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Çatalca?

Çatalca sits at 41.1°N, 28.5°E, 64 m above sea level, in Turkey. The nearest listed city is Kavaklı, 12 km away.

Topography around Çatalca

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

Within 3 km, the terrain around Çatalca has significant variations in elevation — a maximum elevation change of 315 m around an average of 110 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 325 m; within 80 km, large variations in elevation — a maximum elevation change of 944 m.

The land around Çatalca is covered by trees (32%), grassland (26%) and cropland (25%) within 3 km, cropland (43%) within 16 km, and water (58%) within 80 km.

3 km
315 m
16 km
325 m
80 km
944 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Kavaklı 12 km · Tepecik 15 km · Mimarsinan 16 km · Büyükçekmece 17 km · Silivri 19 km · Gürpınar 21 km · Esenyurt 22 km · Beylikdüzü 23 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 Çatalca (41.1407°, 28.4597°, elevation 64 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).