Year-round weather and climate in Bolu, Türkiye
Average temperatures in Bolu run from an average low of -1°C30°F in February up to an average high of 30°C86°F in August. August is the driest month at 3 rainy days; May the wettest at 17. Here is the annual climate data, so you know what you are packing for.
Good to know
- Population
- 185K
- Currency
- TRY
- Language
- Turkish
- Time zone
- Istanbul
Best time to visit
The most pleasant weather falls in June, July, and August, offering a perfect balance of comfortable temperatures and clear skies.
Rain character
Moderate Showers: Rainfall is standard and manageable. A compact travel umbrella or light rain jacket will easily get you through any wet days.
Day-to-night swing
The Daypack Trap: Beware the "noon illusion". In months like August, crisp sunny days drop off a cliff by 13°C23°F at sunset. Always carry an evening layer.
Seasonality Profile
True Four Seasons: Dramatic contrasts. Freezing winters, transitional shoulders, and blazing summers.
Evening vibe
Seasonal Terraces: During the more temperate months, the city opens up with lively outdoor terraces. For the rest of the year, expect to dine indoors.
Sightseeing stamina
All-Day Strolling: Weather is generally forgiving for long walking days. Comfortable sneakers are your most important packing item.
Average temperatures, sunshine, and rainfall
Average monthly weather in Bolu, based on recent historical data. Essential insights on temperature swings, expected rainfall, and daily sunshine.
Bars span the average daily low to high. Aug is typically driest at 3 days (15mm); May the wettest at 17 days (119mm).
| Month | Average high | Average low | Sunshine hours | Rainy days | Total rainfall |
|---|---|---|---|---|---|
| Jan | 9°C / 49°F | 0°C / 33°F | 7h | 11 | 73mm |
| Feb | 7°C / 45°F | -1°C / 29°F | 6h | 13 | 70mm |
| Mar | 13°C / 56°F | 2°C / 36°F | 8h | 14 | 88mm |
| Apr | 16°C / 62°F | 6°C / 43°F | 9h | 14 | 89mm |
| May | 19°C / 66°F | 9°C / 48°F | 10h | 17 | 119mm |
| Jun | 25°C / 78°F | 14°C / 58°F | 13h | 8 | 43mm |
| Jul | 29°C / 83°F | 17°C / 62°F | 13h | 7 | 45mm |
| Aug | 30°C / 86°F | 17°C / 63°F | 13h | 3 | 15mm |
| Sep | 25°C / 77°F | 14°C / 57°F | 11h | 8 | 48mm |
| Oct | 19°C / 67°F | 9°C / 48°F | 9h | 12 | 74mm |
| Nov | 15°C / 58°F | 4°C / 40°F | 6h | 11 | 115mm |
| Dec | 10°C / 50°F | 2°C / 36°F | 6h | 13 | 117mm |
Weather data by Open-Meteo.com (opens in a new tab)
Frequently Asked Questions
When is the sunniest time of year to visit Bolu?
The most sunshine in Bolu comes around July, averaging 13 hours a month. If you're heading there then, pack your sunglasses and sunscreen.
What clothes should I pack for Bolu?
Your packing list depends entirely on when you travel. Temperatures in Bolu swing from an average low of -1°C30°F in February up to 30°C86°F in August. The Packola app builds a tailored packing list for you based on the live weather forecast for your exact travel dates.
Do I need to pack an umbrella for Bolu?
Bolu gets rain on about 131 days out of the year. The wettest month is May. If you're traveling during the rainy season, you'll definitely want to pack an umbrella and a light rain jacket.
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Bolu with Packola.
Get the app