Bilecik in Spring
In spring (March, April and May), Bilecik sees average daytime highs around 18°C and overnight lows near 7°C, with 169 mm of precipitation over about 31 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 12°C in early March to 24°C by late May. The sky is clear or mostly clear about 33% of the time across spring, and the air most often feels dry.
Spring is Bilecik's 3rd-best season to visit on our travel score. For the whole year in context, see Bilecik's year-round climate.
- Avg daytime high
- 18°C
- 3rd-warmest season
- Avg overnight low
- 7°C
- Precipitation
- 169 mm
- 31 wet days
- Avg wind
- 6 km/h
- Travel score
- 5.4
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Bilecik in Spring
Over the season highs climb from about 12°C in early March to 24°C by late May.
A typical spring day in Bilecik reaches about 18°C and drops to 7°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Bilecik
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 1 that feel at or below 0°C.
The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.
Bilecik weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 7° / -0° | 58 | 10.3 | 5.4 | 9.5 | 1.0 |
| Feb | 9° / 1° | 53 | 10.2 | 4.6 | 10.4 | 1.9 |
| Mar | 13° / 3° | 64 | 11.2 | 2.9 | 11.7 | 3.4 |
| Apr | 18° / 6° | 56 | 10.5 | 0.6 | 13 | 5.7 |
| May | 23° / 11° | 49 | 9.4 | 0 | 14.2 | 7.1 |
| Jun | 27° / 15° | 38 | 7.7 | 0 | 14.8 | 7.1 |
| Jul | 30° / 17° | 15 | 3.8 | 0 | 14.6 | 6.3 |
| Aug | 30° / 18° | 13 | 3.2 | 0 | 13.6 | 6.1 |
| Sep | 27° / 14° | 24 | 5 | 0 | 12.3 | 7.7 |
| Oct | 21° / 10° | 44 | 7.1 | 0 | 10.9 | 7.1 |
| Nov | 15° / 5° | 44 | 7.8 | 1.1 | 9.8 | 4.7 |
| Dec | 9° / 1° | 62 | 10.3 | 3.8 | 9.2 | 1.8 |
Cloud cover in Spring
The sky is clear or mostly clear about 33% of the time across spring.
Chance of precipitation in Spring
Bilecik gets around 169 mm of rain and snow over 31 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 6 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 hours in early March to 14 h 36 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.0 kWh/m².
Is spring a good time to visit Bilecik?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Bilecik for sightseeing.
What to pack for Bilecik in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Bilecik sees daytime highs around 18°C and nights near 7°C. Pack sun protection. Worth having: light clothes, a warm layer and rain gear. About 31 days see rain.
UV index in Bilecik in Spring
Clear-sky midday UV across spring averages 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 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 3 | 7 | 7 | 9 | 9 | 9 | 7 | 4 | 3 | 2 |
| Level | Low | Moderate | Moderate | Very high | Very high | Very high | Very high | Very high | Very high | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 3 | Moderate |
| Apr | 7 | Very high |
| May | 7 | Very high |
| Jun | 9 | Very high |
| Jul | 9 | Very high |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 4 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Bilecik in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 14 | 17 | 24 | 24 | 24 | 19 | 15 | 16 | 15 | 15 | 15 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 17 | Moderate |
| Mar | 24 | Moderate |
| Apr | 24 | Moderate |
| May | 24 | Moderate |
| Jun | 19 | Moderate |
| Jul | 15 | Moderate |
| Aug | 16 | Moderate |
| Sep | 15 | Moderate |
| Oct | 15 | Moderate |
| Nov | 15 | Moderate |
| Dec | 13 | Moderate |
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.
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
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.