Geyve weather in October

In October, Geyve sees average daytime highs of 20°C and overnight lows near 10°C, with 70 mm of rain across 9.2 wet days and about 10.9 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 17°C by the end. The sky is clear or mostly clear about 36% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 18 min by month's end. Set against the rest of the year, October is Geyve's 6th-clearest and 12th-windiest month. For the whole year in context, see Geyve's year-round climate.

Daytime high
20°
6th warmest
Overnight low
10°
7th coldest
Rainfall
70 mm
9.2 wet days
Daylight
10 h 54 min
6:17 AM – 5:11 PM
Cloud cover
55%
6th clearest
Wind
5 km/h
12th windiest
Solar energy
3.09 kWh/m²
Travel score
6.5
out of 10

Geyve is ilçe (district), administrative county of Sakarya, northwestern Turkey.

Density
31/km²
people per km²

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 17°C by the end.

A typical October day in Geyve reaches about 20°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 26°C. Set against its neighbours, October runs about 5°C cooler than September and about 6°C warmer than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12312
22312
32312
42212
52211
62211
72211
82211
92211
102111
112111
122111
132110
142110
152010
162010
172010
182010
191910
20199
21199
22199
23199
24189
25188
26188
27188
28178
29177
30177
31177

How October really feels in Geyve

Once humidity and wind are folded in, October 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

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

Geyve weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°8312.37.19.40.7
Feb / 7612.66.210.41.5
Mar12° / 8913.2411.73.0
Apr17° / 7411.50.7135.2
May22° / 11°7311.2014.26.6
Jun25° / 15°6810.6014.87.0
Jul28° / 17°315.4014.67.3
Aug28° / 17°305.6013.66.9
Sep25° / 14°457.6012.37.6
Oct20° / 10°709.2010.96.5
Nov14° / 649.31.39.74.1
Dec / 8712.24.79.21.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36337
46139
56139
66040
75941
85842
95743
105644
115545
125347
135248
145149
155050
165050
174951
184951
194753
204753
214852
224654
234654
244753
254753
264654
274654
284753
294753
304753
314852

Chance of precipitation in October

Any precipitation

Geyve gets around 70 mm of rain over 9.2 wet days in October. 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%151015202531
Rain chance (%)
128
227
327
427
527
627
726
826
926
1026
1126
1227
1327
1428
1528
1629
1730
1831
1931
2032
2132
2232
2333
2433
2532
2632
2732
2832
2931
3030
3130

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
159347
261336
362326
463316
565305
666295
768284
869274
970264
1072253
1173243
1274233
1375223
1477212
1578202
1680191
1781181
1882171
1983161
2085150
2187130
2288120
2389110
2490100
259190
269280
279460
289460
299550
309640
319730

Wind in October

Winds average 5 km/h in October, the calmest month.

Across October, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over October. Sunrise moves from 6:01 AM to 6:34 AM, and sunset from 5:35 PM to 4:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:015:35
211.56:025:33
311.56:035:32
411.46:045:30
511.46:055:28
611.36:065:27
711.36:075:25
811.36:085:23
911.26:095:22
1011.26:105:20
1111.16:115:19
1211.16:125:17
1311.06:135:16
1411.06:155:14
1510.96:165:12
1610.96:175:11
1710.96:185:09
1810.86:195:08
1910.86:205:07
2010.76:215:05
2110.76:225:04
2210.66:245:02
2310.66:255:01
2410.66:265:00
2510.56:274:58
2610.56:284:57
2710.46:294:56
2810.46:314:54
2910.46:324:53
3010.36:334:52
3110.36:344:51

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.09 kWh/m².

For context, solar energy here swings from a low near 1.59 kWh/m² to a high of 6.78 kWh/m² in July across the year — October's 3.09 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.8Moderate
33.8Moderate
43.7Moderate
53.6Moderate
63.6Moderate
73.5Moderate
83.5Moderate
93.4Moderate
103.4Moderate
113.3Moderate
123.3Moderate
133.2Moderate
143.2Moderate
153.1Moderate
163.1Moderate
173.0Moderate
183.0Moderate
192.9Moderate
202.9Moderate
212.9Moderate
222.8Moderate
232.8Moderate
242.7Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.5Moderate
Planning a trip in October

Is October a good time to visit Geyve?

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

6.5
Sightseeing
6th-best month of the year
3.5
Beach & pool
6th-best month of the year

October is a reasonable time to visit Geyve for sightseeing.

What to pack for Geyve in October

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

In October, Geyve sees daytime highs around 20°C and nights near 10°C. Worth packing: rain gear. About 9 days see rain.

rain gear

Sea temperature near Geyve in October

The nearest coast averages about 19°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 70 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 Geyve in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Geyve peaks around August 10 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowAug 10UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr7High
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Geyve in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Geyve 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 Geyve?

Geyve sits at 40.5°N, 30.3°E, 84 m above sea level, in Turkey. The nearest listed city is Sapanca, 21 km away.

Topography around Geyve

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

Within 3 km, the terrain around Geyve has significant variations in elevation — a maximum elevation change of 290 m around an average of 113 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,484 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,820 m.

The land around Geyve is covered by trees (50%) within 3 km, trees (73%) within 16 km, and trees (61%) within 80 km.

3 km
290 m
16 km
1,484 m
80 km
1,820 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Sapanca 21 km · Osmaneli 29 km · Adapazarı 32 km · Akyazı 34 km · İzmit 42 km · Gölcük 46 km · Bilecik 49 km · Derince 49 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 Geyve (40.5075°, 30.2925°, elevation 84 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).