Derince weather in July

In July, Derince sees average daytime highs of 28°C and overnight lows near 18°C, with 38 mm of rain across 5.8 wet days and about 14.6 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 75% of the time in July, and the air most often feels humid.

Daylight stretches from about 14 h 54 min at the start of July to 14 h 12 min by month's end. Set against the rest of the year, July is Derince's 1st-clearest and 2nd-windiest month. For the whole year in context, see Derince's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
18°
11th coldest
Rainfall
38 mm
5.8 wet days
Daylight
14 h 42 min
4:47 AM – 7:26 PM
Cloud cover
25%
1st clearest
Wind
9 km/h
2nd windiest
Solar energy
6.72 kWh/m²
Travel score
7.3
out of 10

Derince is district and town in Kocaeli Province, 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 Derince reaches about 28°C in the afternoon and slips back to 18°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 31°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12717
22717
32717
42717
52718
62818
72818
82818
92818
102818
112818
122818
132818
142818
152818
162818
172818
182818
192819
202819
212819
222819
232819
242819
252819
262919
272919
282919
292919
302919
312919

How July really feels in Derince

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.

Derince 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 / 9513.66.29.41.1
Feb / 8112.65.310.41.7
Mar12° / 8812.92.711.73.0
Apr17° / 6610.80.513.15.2
May21° / 12°599.3014.26.9
Jun26° / 16°639.7014.97.2
Jul28° / 18°385.8014.67.3
Aug28° / 19°365.5013.67.1
Sep25° / 15°577.9012.37.6
Oct20° / 12°8110.4010.96.3
Nov14° / 7510.219.74.3
Dec / 103133.89.11.8

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of July, with mostly cloudy or overcast conditions the remaining 12%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18614
28614
38614
48614
58614
68614
78515
88515
98515
108515
118614
128614
138614
148614
158614
168713
178713
188812
198911
208911
219010
22919
23919
24919
25928
26937
27937
28937
29937
30937
31937

Chance of precipitation in July

Any precipitation

Derince gets around 38 mm of rain over 5.8 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 20% and peaks near 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
123
222
321
421
521
620
720
820
920
1020
1120
1221
1321
1421
1521
1621
1721
1821
1920
2020
2120
2219
2319
2418
2518
2618
2718
2817
2917
3017
3117

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 39% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
152841251
252741261
352741271
442740271
542640282
642640292
732540292
832540302
932441312
1022341313
1122341323
1222241323
1312141333
1412141333
1512041343
1611941353
1711941354
1811841364
1911741374
2011641374
2111641384
2211540395
2311440405
2411339406
2511339417
2611238427
2711138428
2811137439
2911036449
30110354410
3119354510

Wind in July

Winds average 9 km/h in July.

Across July, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 54 min at the start of July to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over July. Sunrise moves from 4:37 AM to 5:00 AM, and sunset from 7:31 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:377:31
214.94:387:31
314.94:387:31
414.94:397:30
514.84:397:30
614.84:407:30
714.84:417:30
814.84:417:29
914.84:427:29
1014.84:427:29
1114.84:437:28
1214.74:447:28
1314.74:457:28
1414.74:457:27
1514.74:467:27
1614.74:477:26
1714.64:487:25
1814.64:487:25
1914.64:497:24
2014.64:507:23
2114.54:517:23
2214.54:527:22
2314.54:537:21
2414.44:537:20
2514.44:547:19
2614.44:557:19
2714.44:567:18
2814.34:577:17
2914.34:587:16
3014.34:597:15
3114.25:007:14

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.72 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.5 kWh/m² to a high of 6.72 kWh/m² in July across the year — July's 6.72 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.9Intense
26.9Intense
36.9Intense
46.8Intense
56.8Intense
66.8Intense
76.8Intense
86.8Intense
96.8Intense
106.8Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.7Intense
186.6Intense
196.6Intense
206.6Intense
216.6Intense
226.6Intense
236.6Intense
246.6Intense
256.6Intense
266.6Intense
276.5Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in July

Is July a good time to visit Derince?

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

7.3
Sightseeing
2nd-best month of the year
8.0
Beach & pool
2nd-best month of the year

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

What to pack for Derince in July

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

In July, Derince sees daytime highs around 28°C and nights near 18°C. Pack light clothes and sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Derince 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 41 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 11 to Oct 10 — about 4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan9Bracing
Feb7Bracing
Mar8Bracing
Apr10Bracing
May16Cool
Jun21Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Cool
Dec11Bracing

UV index in Derince 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 Derince peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highHighModerateLowJun 23UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Derince 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 Derince is worst in March — around 16 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2316 µg/m³Dec 198 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar16Moderate
Apr16Moderate
May15Moderate
Jun13Moderate
Jul10Good
Aug10Good
Sep10Good
Oct10Good
Nov10Good
Dec8Good
Location & terrain

Where is Derince?

Derince sits at 40.8°N, 29.8°E, 42 m above sea level, in Turkey. The nearest listed city is Körfez, 3.0 km away.

Topography around Derince

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

Within 3 km, the terrain around Derince has only modest variations in elevation — a maximum elevation change of 217 m around an average of 42 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 991 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,600 m.

The land around Derince is covered by artificial surfaces (49%) and water (30%) within 3 km, trees (55%) within 16 km, and trees (49%) and water (26%) within 80 km.

3 km
217 m
16 km
991 m
80 km
1,600 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Körfez 3.0 km · Gölcük 5.0 km · İzmit 10 km · Karamürsel 18 km · Gebze 33 km · İznik 37 km · Sapanca 39 km · Kandıra 45 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 Derince (40.7569°, 29.8147°, elevation 42 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).