Annual mean 13°C · wettest around January · prevailing wind SW
Warmest
28.8 °C
Coldest
4.6 °C
Wettest
24%
Windiest
2.2 m/s
Prevailing
SW
1.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Bolu over the whole year is 13°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 1°C. Bolu has no sharply defined rainy season: the chance of rain on a given day runs from 7% in August, the driest month, to 20% in January, the wettest. Winds in Bolu are highest in July, averaging 1.5 m/s (5 km/h), and lightest in October, at 0.9 m/s (3 km/h). The prevailing wind is from the SW. The clearest skies in Bolu come in July, when the sky is typically 39% covered; January is the cloudiest month, at 70%.
Month by month Bolu climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
5°C
1°C
3°C
20%
70%
1.1 m/s
3
0
28
February
8°C
2°C
5°C
17%
66%
1.1 m/s
8
0
43
March
11°C
4°C
8°C
17%
63%
1.2 m/s
17
0
58
April
16°C
7°C
14°C
15%
57%
1.3 m/s
47
4
75
May
20°C
12°C
19°C
18%
59%
1.3 m/s
68
18
68
June
25°C
16°C
25°C
15%
49%
1.3 m/s
66
50
34
July
28°C
18°C
28°C
7%
39%
1.5 m/s
49
66
17
August
28°C
19°C
28°C
7%
39%
1.4 m/s
43
73
12
September
24°C
15°C
23°C
9%
44%
1.1 m/s
72
43
45
October
18°C
10°C
17°C
13%
52%
0.9 m/s
66
8
78
November
12°C
5°C
10°C
17%
57%
0.9 m/s
25
1
69
December
8°C
3°C
5°C
20%
67%
1.0 m/s
7
0
42
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Bolu weather by season
Year round, Bolu has days of about 5°C at their warmest in January, its coolest month, and 28°C in August, its warmest; the coolest hours of the day run from 1°C to 19°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around January and least likely around August. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Bolu weather in winterDecember to February
High 7°CLow 2°CRain 19%
Winter in Bolu has typical daily highs of about 7°C and lows of about 2°C, with a 19% chance of rain on a given day.
Bolu weather in springMarch to May
High 16°CLow 8°CRain 17%
Spring in Bolu has typical daily highs of about 16°C and lows of about 8°C, with a 17% chance of rain on a given day.
Bolu weather in summerJune to August
High 27°CLow 18°CRain 10%
Summer in Bolu has typical daily highs of about 27°C and lows of about 18°C, with a 10% chance of rain on a given day.
Bolu weather in autumnSeptember to November
High 18°CLow 10°CRain 13%
Autumn in Bolu has typical daily highs of about 18°C and lows of about 10°C, with a 13% chance of rain on a given day.
When is the rainy season in Bolu?
Bolu has no sharply defined rainy season: the chance of rain on a given day runs from 7% in August, the driest month, to 20% in January, the wettest.
What time of year is Bolu windiest?
Winds in Bolu are highest in July, averaging 1.5 m/s (5 km/h), and lightest in October, at 0.9 m/s (3 km/h). The prevailing wind is from the SW.
What is the average temperature in Bolu year round?
The average temperature in Bolu over the whole year is 13°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 1°C.