Bilecik weather in May

In May, Bilecik sees average daytime highs of 23°C and overnight lows near 11°C, with 49 mm of rain across 9.4 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 21°C in the first days to 24°C by the end. The sky is clear or mostly clear about 43% 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 36 min by month's end. Set against the rest of the year, May is Bilecik's 5th-clearest and 9th-windiest month. For the whole year in context, see Bilecik's year-round climate.

Daytime high
23°
5th warmest
Overnight low
11°
8th coldest
Rainfall
49 mm
9.4 wet days
Daylight
14 h 12 min
4:50 AM – 7:03 PM
Cloud cover
49%
5th clearest
Wind
6 km/h
9th windiest
Solar energy
6.04 kWh/m²
Travel score
7.1
out of 10

Bilecik is central district and city in Bilecik Province, Turkey.

Air quality
Elevated
PM2.5 17.5 µg/m³ · 2019

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 21°C in the first days to 24°C by the end.

A typical May day in Bilecik reaches about 23°C in the afternoon and slips back to 11°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 29°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)
1209
2219
3219
4219
5219
6219
72110
82210
92210
102210
112210
122210
132311
142311
152311
162311
172311
182311
192411
202412
212412
222412
232412
242412
252412
262412
272412
282413
292413
302513
312513

How May really feels in Bilecik

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.

Bilecik 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 / -0°5810.35.49.51.0
Feb / 5310.24.610.41.9
Mar13° / 6411.22.911.73.4
Apr18° / 5610.50.6135.7
May23° / 11°499.4014.27.1
Jun27° / 15°387.7014.87.1
Jul30° / 17°153.8014.66.3
Aug30° / 18°133.2013.66.1
Sep27° / 14°245012.37.7
Oct21° / 10°447.1010.97.1
Nov15° / 447.81.19.84.7
Dec / 6210.33.89.21.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% 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 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35446
45545
55545
65644
75644
85743
95842
105842
115941
126040
136139
146238
156139
166238
176238
186238
196238
206238
216238
226238
236238
246337
256436
266436
276535
286535
296634
306733
316733

Chance of precipitation in May

Any precipitation

Bilecik gets around 49 mm of rain over 9.4 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 30% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
428
528
628
728
828
928
1028
1128
1229
1329
1429
1529
1630
1730
1830
1931
2031
2131
2232
2332
2432
2532
2632
2732
2832
2932
3032
3132

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 84% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19730
29640
39550
49550
59460
69370
79280
89280
99190
1090100
1189110
1289110
1388120
1487130
1586140
1685150
1784160
1883170
1982180
2082180
2180191
2279201
2378211
2477221
2576231
2675241
2773252
2872262
2970282
3068293
3166304

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:07 AM to 4:39 AM, and sunset from 6:48 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:076:48
213.75:066:49
313.85:046:50
413.85:036:51
513.85:026:52
613.95:016:53
713.94:596:54
813.94:586:55
914.04:576:56
1014.04:566:57
1114.04:556:58
1214.14:546:59
1314.14:537:00
1414.14:527:01
1514.24:517:02
1614.24:507:03
1714.24:497:04
1814.34:487:05
1914.34:477:06
2014.34:467:07
2114.44:467:07
2214.44:457:08
2314.44:447:09
2414.44:437:10
2514.54:437:11
2614.54:427:12
2714.54:417:13
2814.54:417:14
2914.64:407:14
3014.64:407:15
3114.64:397:16

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.04 kWh/m².

For context, solar energy here swings from a low near 1.63 kWh/m² to a high of 6.89 kWh/m² in July across the year — May's 6.04 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.8Bright
55.8Bright
65.8Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
116.0Bright
126.0Intense
136.0Intense
146.0Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in May

Is May a good time to visit Bilecik?

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

7.1
Sightseeing
2nd-best month of the year
5.3
Beach & pool
5th-best month of the year

May is one of the better times to visit Bilecik for general sightseeing.

What to pack for Bilecik in May

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

In May, Bilecik sees daytime highs around 23°C and nights near 11°C. Pack sun protection. Worth having: light clothes and rain gear. About 9 days see rain.

sun protectionlight clothesrain gear

UV index in Bilecik 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 Bilecik 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highModerateLowAug 10UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar3Moderate
Apr7Very high
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep7Very high
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Bilecik 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 Bilecik is worst in March — around 24 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 13 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Bilecik's WHO annual average of 17.5 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2324 µg/m³Dec 1913 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar24Moderate
Apr24Moderate
May24Moderate
Jun19Moderate
Jul15Moderate
Aug16Moderate
Sep15Moderate
Oct15Moderate
Nov15Moderate
Dec13Moderate
Location & terrain

Where is Bilecik?

Bilecik sits at 40.1°N, 30.0°E, 517 m above sea level, in Turkey. The nearest listed city is Osmaneli, 24 km away.

Topography around Bilecik

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

Within 3 km, the terrain around Bilecik has significant variations in elevation — a maximum elevation change of 481 m around an average of 500 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,136 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,526 m.

The land around Bilecik is covered by trees (34%) and grassland (32%) within 3 km, trees (55%) and grassland (22%) within 16 km, and trees (54%) and grassland (21%) within 80 km.

3 km
481 m
16 km
1,136 m
80 km
2,526 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Osmaneli 24 km · Bozüyük 26 km · Yenişehir 31 km · İznik 39 km · İnegol 40 km · Akhisar 44 km · Geyve 49 km · Eskişehir 61 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 Bilecik (40.1419°, 29.9793°, elevation 517 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. 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).