Bolu in May
6.2out of 10
Possible, with caveats
Mild: highs around 18°C. Very wet: about 16 rainy days.
18°CAvg high
8°CAvg low
16Rainy days (110 mm)
14:16 hDaylight
05:42Sunrise · 19:58 Sunset
Why this score
- Mild: highs around 18°C
- Very wet: about 16 rainy days
- Rain varies a lot between years (±4.5 days)
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in May varies a lot between years (±4.5 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 4°C | -4°C | 91 mm | 14 | – | – | 3.8 |
| February | 5°C | -3°C | 89 mm | 14 | – | – | 4.2 |
| March | 9°C | -1°C | 107 mm | 15 | – | – | 4.7 |
| April | 14°C | 3°C | 99 mm | 14 | – | – | 5.7 |
| May | 18°C | 8°C | 110 mm | 16 | – | – | 6.2 |
| June | 22°C | 11°C | 96 mm | 13 | – | – | 7.2 |
| July | 24°C | 13°C | 50 mm | 9 | – | – | 7.9 |
| August | 25°C | 14°C | 52 mm | 8 | – | – | 8.0 |
| September | 22°C | 10°C | 66 mm | 9 | – | – | 7.9 |
| October | 17°C | 7°C | 90 mm | 11 | – | – | 6.7 |
| November | 11°C | 2°C | 75 mm | 10 | – | – | 5.9 |
| December | 6°C | -2°C | 96 mm | 13 | – | – | 4.3 |
Frequently asked questions
How hot is Bolu in May?
Daytime highs average 18°C and nights about 8°C.
When is the best time to visit Bolu?
The best months are August, July, September.