Akçakoca weather in September

In September, Akçakoca sees average daytime highs of 23°C and overnight lows near 17°C, with 85 mm of rain across 9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 52% of the time in September, and the air most often feels humid.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Akçakoca's 4th-clearest and 7th-windiest month. For the whole year in context, see Akçakoca's year-round climate.

Daytime high
23°
4th warmest
Overnight low
17°
9th coldest
Rainfall
85 mm
9 wet days
Daylight
12 h 18 min
5:42 AM – 5:58 PM
Cloud cover
41%
4th clearest
Wind
9 km/h
7th windiest
Solar energy
4.52 kWh/m²
Travel score
7.3
out of 10

Akçakoca is district and town of Düzce, Turkey.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 21°C by the end.

A typical September day in Akçakoca reaches about 23°C in the afternoon and slips back to 17°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12418
22418
32418
42418
52418
62418
72417
82317
92317
102317
112317
122317
132317
142317
152317
162317
172316
182216
192216
202216
212216
222216
232216
242216
252215
262215
272115
282115
292115
302115

How September really feels in Akçakoca

Once humidity and wind are folded in, September 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

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

Akçakoca weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 11114.36.69.41.0
Feb / 9613.45.810.41.3
Mar10° / 10113.93.611.72.2
Apr14° / 7411.30.613.14.0
May19° / 12°7510.4014.36.0
Jun23° / 17°739.1014.97.3
Jul25° / 19°487014.77.9
Aug25° / 20°596.5013.67.9
Sep23° / 17°859012.37.3
Oct19° / 13°11611.50.110.95.9
Nov14° / 9610.71.29.74.1
Dec10° / 12214.64.29.11.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17921
27921
37822
47723
57624
67624
77624
87525
97426
107426
117327
127327
137228
147129
157129
166931
176931
186832
196832
206832
216733
226733
236733
246634
256535
266535
276535
286436
296436
306337

Chance of precipitation in September

Any precipitation

Akçakoca gets around 85 mm of rain over 9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
129
229
330
430
530
629
729
828
928
1027
1127
1227
1327
1427
1527
1627
1728
1828
1929
2029
2130
2231
2331
2432
2532
2632
2733
2832
2932
3032

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 17% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
152039324
262139313
372339293
482439272
592539252
692639242
7102739222
8112839211
9112839201
10122939191
11122940181
12132940181
13133040170
14143039170
15143039160
16153039160
17163138150
18163138150
19173237140
20183237140
21193336130
22203335120
23213434110
24233433100
2524353290
2625363280
2726363170
2828373060
2929372950
3030382840

Wind in September

Winds average 9 km/h in September.

Across September, 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.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 5:26 AM to 5:56 AM, and sunset from 6:24 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:266:24
212.95:276:22
312.95:286:21
412.85:296:19
512.85:306:17
612.75:316:16
712.75:336:14
812.65:346:12
912.65:356:10
1012.55:366:09
1112.55:376:07
1212.55:386:05
1312.45:396:03
1412.45:406:01
1512.35:416:00
1612.35:425:58
1712.25:435:56
1812.25:445:54
1912.15:455:53
2012.15:465:51
2112.05:475:49
2212.05:485:47
2311.95:495:45
2411.95:505:44
2511.85:515:42
2611.85:525:40
2711.85:535:38
2811.75:545:37
2911.75:555:35
3011.65:565:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.52 kWh/m².

For context, solar energy here swings from a low near 1.55 kWh/m² to a high of 6.72 kWh/m² in July across the year — September's 4.52 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.6Bright
154.5Bright
164.5Bright
174.5Bright
184.4Bright
194.3Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.0Bright
274.0Moderate
283.9Moderate
293.9Moderate
303.8Moderate
Planning a trip in September

Is September a good time to visit Akçakoca?

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

7.3
Sightseeing
3rd-best month of the year
5.4
Beach & pool
4th-best month of the year

September is one of the better times to visit Akçakoca for general sightseeing.

What to pack for Akçakoca in September

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

In September, Akçakoca sees daytime highs around 23°C and nights near 17°C. Worth packing: light clothes, rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

Sea temperature near Akçakoca in September

The nearest coast averages about 23°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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 12 — about 4.1 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan9Bracing
Feb7Bracing
Mar8Bracing
Apr11Bracing
May16Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep23Refreshing
Oct20Cool
Nov15Cool
Dec12Bracing

UV index in Akçakoca in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Akçakoca peaks around August 10 at about 8 (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 highHighModerateLowAug 10UV 8Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr6High
May7High
Jun8Very high
Jul8Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Akçakoca in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Akçakoca is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2015 µg/m³Dec 188 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar15Moderate
Apr14Moderate
May12Moderate
Jun10Good
Jul9Good
Aug9Good
Sep9Good
Oct9Good
Nov9Good
Dec8Good
Location & terrain

Where is Akçakoca?

Akçakoca sits at 41.1°N, 31.1°E, 42 m above sea level, in Turkey. The nearest listed city is Kocaali, 23 km away.

Topography around Akçakoca

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

Within 3 km, the terrain around Akçakoca has only modest variations in elevation — a maximum elevation change of 144 m around an average of 27 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,167 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,191 m.

The land around Akçakoca is covered by water (50%) and trees (36%) within 3 km, water (50%) and trees (47%) within 16 km, and trees (57%) and water (28%) within 80 km.

3 km
144 m
16 km
1,167 m
80 km
2,191 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Kocaali 23 km · Alaplı 24 km · Düzce 28 km · Karasu Mahallesi 28 km · Ereğli 33 km · Karasu 36 km · Kaynaşlı 39 km · Hendek 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 Akçakoca (41.0894°, 31.1236°, 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).