Çatalca weather in July

In July, Çatalca sees average daytime highs of 28°C and overnight lows near 21°C, with 26 mm of rain across 4.3 wet days and about 14.7 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 82% of the time in July, and the air most often feels muggy.

Daylight stretches from about 14 h 54 min at the start of July to 14 h 18 min by month's end. Set against the rest of the year, July is Çatalca's 1st-clearest and 7th-windiest month. For the whole year in context, see Çatalca's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
21°
11th coldest
Rainfall
26 mm
4.3 wet days
Daylight
14 h 42 min
4:51 AM – 7:32 PM
Cloud cover
22%
1st clearest
Wind
16 km/h
7th windiest
Solar energy
6.99 kWh/m²
Travel score
7.8
out of 10

Çatalca is district of İstanbul, northwestern Turkey.

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical July day in Çatalca reaches about 28°C in the afternoon and slips back to 21°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 30°C. Set against its neighbours, July runs about 3°C warmer than June and on par with August.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12720
22720
32720
42720
52720
62721
72721
82721
92721
102721
112721
122821
132821
142821
152821
162821
172821
182821
192821
202821
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822
312822

How July really feels in Çatalca

Once humidity and wind are folded in, July 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

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Çatalca weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 11th-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 82% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of July, with mostly cloudy or overcast conditions the remaining 7%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
19010
29010
39010
4919
5919
6919
7919
8919
9919
10919
11919
12919
13928
14928
15928
16928
17937
18937
19946
20946
21946
22955
23955
24955
25955
26955
27955
28955
29955
30955
31955

Chance of precipitation in July

Any precipitation

Çatalca gets around 26 mm of rain over 4.3 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 17% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
113
214
314
414
515
615
715
816
916
1016
1116
1217
1316
1416
1516
1616
1715
1815
1914
2014
2113
2213
2312
2412
2512
2612
2712
2812
2912
3013
3113

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the muggy band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 53% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1320413060
2319413170
3318413170
4317403280
5217403380
6216403480
7215393580
8215393590
9214393690
10213393790
11213383890
12213383990
13212374090
14212374190
15212364290
16211354390
17211354490
181103444100
191103445100
20193345110
21193346120
22193246120
23183146140
24183047150
25073047160
26072947170
27062847180
28062747200
29052647210
30052647221
31052547231

Wind in July

Winds average 16 km/h in July.

Across July, daily wind ranges from about 14 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light 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
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 54 min at the start of July to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over July. Sunrise moves from 4:42 AM to 5:04 AM, and sunset from 7:37 PM to 7:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:427:37
214.94:427:37
314.94:437:37
414.94:437:37
514.94:447:37
614.94:447:37
714.94:457:36
814.84:457:36
914.84:467:36
1014.84:477:35
1114.84:477:35
1214.84:487:35
1314.84:497:34
1414.74:507:34
1514.74:507:33
1614.74:517:32
1714.74:527:32
1814.64:537:31
1914.64:537:31
2014.64:547:30
2114.64:557:29
2214.54:567:28
2314.54:577:28
2414.54:587:27
2514.54:597:26
2614.45:007:25
2714.45:017:24
2814.45:027:23
2914.35:027:22
3014.35:037:21
3114.35:047:20

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.99 kWh/m² — the sunniest month for solar.

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 — July's 6.99 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.1Intense
27.1Intense
37.1Intense
47.1Intense
57.1Intense
67.1Intense
77.1Intense
87.1Intense
97.0Intense
107.0Intense
117.0Intense
127.0Intense
137.0Intense
147.0Intense
157.0Intense
167.0Intense
177.0Intense
187.0Intense
197.0Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.7Intense
316.7Intense
Planning a trip in July

Is July a good time to visit Çatalca?

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

7.8
Sightseeing
2nd-best month of the year
8.3
Beach & pool
1st-best month of the year

July is one of the better times to visit Çatalca for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Çatalca in July

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

In July, Çatalca sees daytime highs around 28°C and nights near 21°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Çatalca in July

The nearest coast averages about 24°C in July — 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 July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 9 (very high — sun protection essential). 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 July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July 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
July 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).