Bolu Province

Region · 🇹🇷 Türkiye

Population 299,413

Area 8,198 km²

Time zone Europe/Istanbul

Official website www.bolu.gov.tr

Bolu Province

Bolu Province – Planning a Trip?

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Featured Lists

Bolu Essentials

Bolu sits between Istanbul and Ankara, characterized by high-altitude crater lakes and the Köroğlu Mountains. The region features the landslide-formed Abant Lake and the diverse ecosystems of Yedigöller National Park. Architectural highlights include the historic Victory Tower in Göynük and the surreal, abandoned castle town of Burj al Babas. For recreation, Kartalkaya provides premier winter sports slopes, while the Mudurnu district offers thermal spring facilities and major highway-side shopping hubs.

Bolu Province — Map

Bolu Province — Map

Climate & when to visit

Best time to visit: May, June, July, September, October

Select a month

Typical weather in January

Poor

5° (feels like 0°) · extremes -12°–11°
-2° at night
12 rainy days
6 sunny days
3 hours of sunshine per day
Dry air
Light breeze
UV index 1 · low

Typical weather in February

Poor

7° (feels like 3°) · extremes -10°–15°
-2° at night
11 rainy days
8 sunny days
5 hours of sunshine per day
Dry air
Light breeze
UV index 2 · low

Typical weather in March

Poor

12° (feels like 7°) · extremes -6°–20°
1° at night
11 rainy days
9 sunny days
6 hours of sunshine per day
Dry air
Light breeze
UV index 3 · moderate

Typical weather in April

Good

17° (feels like 14°) · extremes -1°–26°
5° at night
10 rainy days
10 sunny days
7 hours of sunshine per day
Dry air
Light breeze
UV index 5 · moderate

Typical weather in May

Great

22° (feels like 20°) · extremes 4°–29°
10° at night
12 rainy days
13 sunny days
8 hours of sunshine per day
Dry air
Calm winds
UV index 6 · high

Typical weather in June

Great

26° (feels like 25°) · extremes 9°–33°
13° at night
11 rainy days
15 sunny days
10 hours of sunshine per day
Comfortable humidity
Calm winds
UV index 8 · very high

Typical weather in July

Great

30° (feels like 29°) · extremes 12°–37°
16° at night
5 rainy days
21 sunny days
11 hours of sunshine per day
Comfortable humidity
Light breeze
UV index 9 · very high

Typical weather in August

Good

31° (feels like 30°) · extremes 12°–37°
16° at night
5 rainy days
22 sunny days
11 hours of sunshine per day
Comfortable humidity
Light breeze
UV index 8 · very high

Typical weather in September

Great

26° (feels like 25°) · extremes 8°–33°
13° at night
7 rainy days
16 sunny days
8 hours of sunshine per day
Dry air
Calm winds
UV index 6 · high

Typical weather in October

Great

20° (feels like 18°) · extremes 2°–27°
9° at night
9 rainy days
14 sunny days
6 hours of sunshine per day
Dry air
Calm winds
UV index 4 · moderate

Typical weather in November

Fair

14° (feels like 10°) · extremes -2°–21°
4° at night
9 rainy days
11 sunny days
5 hours of sunshine per day
Dry air
Calm winds
UV index 2 · low

Typical weather in December

Poor

7° (feels like 3°) · extremes -8°–13°
0° at night
12 rainy days
6 sunny days
3 hours of sunshine per day
Dry air
Light breeze
UV index 1 · low

Climate data: NASA POWER (MERRA-2) · 1996–2025

Practical information

Currency: Turkish Lira TRY ₺ · Card payments · Widely accepted
Emergency numbers: 112 Ambulance
Electricity: Type C / Type F
230 V · 50 Hz

Languages: Turkish
Tap water: Drink with caution
Driving side: Right
Calling code: +90

Tours & Activities

Related destinations

Turkey Bolu Lake Abant

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