Geyve weather in May

In May, Geyve sees average daytime highs of 22°C and overnight lows near 11°C, with 73 mm of rain across 11.2 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 23°C by the end. The sky is clear or mostly clear about 40% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is Geyve's 5th-clearest and 11th-windiest month. For the whole year in context, see Geyve's year-round climate.

Daytime high
22°
5th warmest
Overnight low
11°
8th coldest
Rainfall
73 mm
11.2 wet days
Daylight
14 h 12 min
4:48 AM – 7:02 PM
Cloud cover
52%
5th clearest
Wind
5 km/h
11th windiest
Solar energy
5.96 kWh/m²
Travel score
6.6
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 May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 23°C by the end.

A typical May day in Geyve reaches about 22°C in the afternoon and slips back to 11°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1198
2199
3209
4209
5209
6209
7209
8219
92110
102110
112110
122110
132110
142210
152211
162211
172211
182211
192211
202211
212311
222311
232312
242312
252312
262312
272312
282312
292312
302313
312313

How May really feels in Geyve

Once humidity and wind are folded in, May 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

May 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 May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25347
35347
45446
55446
65446
75545
85644
95743
105743
115743
125743
135842
145842
155842
165842
175842
185842
195842
205842
215743
225842
235842
245743
255842
265941
276040
286040
296139
306238
316337

Chance of precipitation in May

Any precipitation

Geyve gets around 73 mm of rain over 11.2 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 41% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
131
231
331
431
532
632
732
833
933
1033
1133
1234
1334
1434
1534
1635
1735
1836
1936
2037
2137
2238
2339
2439
2540
2640
2741
2841
2941
3041
3141

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19370
29280
39190
490100
589110
688120
787130
885150
983161
1081181
1180191
1278211
1376231
1474242
1572262
1670282
1769292
1866313
1964333
2063343
2160364
2259374
2356395
2455405
2554415
2652426
2750437
2849447
2947458
3045469
31434610

Wind in May

Winds average 5 km/h in May.

Across May, 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 May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:05 AM to 4:37 AM, and sunset from 6:47 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:056:47
213.75:046:48
313.85:026:49
413.85:016:50
513.95:006:51
613.94:596:52
713.94:576:53
814.04:566:54
914.04:556:55
1014.04:546:56
1114.14:536:57
1214.14:526:58
1314.14:516:59
1414.24:507:00
1514.24:497:01
1614.24:487:02
1714.34:477:03
1814.34:467:04
1914.34:457:05
2014.44:447:06
2114.44:437:07
2214.44:437:08
2314.54:427:09
2414.54:417:10
2514.54:407:11
2614.54:407:12
2714.64:397:12
2814.64:387:13
2914.64:387:14
3014.64:377:15
3114.74:377:16

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.96 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 — May's 5.96 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.7Bright
45.7Bright
55.7Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.9Bright
115.9Bright
125.9Bright
136.0Bright
146.0Bright
156.0Intense
166.0Intense
176.0Intense
186.0Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.2Intense
Planning a trip in May

Is May a good time to visit Geyve?

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

6.6
Sightseeing
5th-best month of the year
4.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Geyve for sightseeing.

What to pack for Geyve in May

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

In May, Geyve sees daytime highs around 22°C and nights near 11°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Geyve in May

The nearest coast averages about 16°C in May — 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 May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — 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 May

GoodModeratePoorUnhealthyVery unhealthy

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