The best times to visit Bolu for ideal weather are
April 23rd to October 14th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Bolu Travel Guide
Other Bolu Travel Info
Weather in Bolu
Temperature
Average temperatures in Bolu vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 39th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Bolu, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 87.5°F (30.8°C) with temperatures rarely dropping below 60.6°F (15.9°C) at night.
Bolu Temperatures (Fahrenheit)
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Bolu Temperatures (Celsius)
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“Feels-Like” Temperatures
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Bolu Perceived Temperature (F)
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Bolu Perceived Temperature (C)
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Average Bolu Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
Show Fahrenheit
| Month | Avg. High (°F) | Avg. Mean (°F) | Avg. Low (°F) |
|---|---|---|---|
| Jan | 43.3 | 35.4 | 28.3 |
| Feb | 47.3 | 38.3 | 30.2 |
| Mar | 53.6 | 43.8 | 34.3 |
| Apr | 62.7 | 51.6 | 39.9 |
| May | 72.8 | 60.9 | 48.1 |
| Jun | 78.7 | 66.6 | 54.1 |
| Jul | 84 | 73.4 | 58.5 |
| Aug | 85.5 | 73.3 | 58.5 |
| Sep | 78.1 | 65.7 | 52.6 |
| Oct | 67.1 | 55.6 | 45.8 |
| Nov | 57.9 | 47.1 | 37.8 |
| Dec | 46.9 | 39.2 | 31.4 |
Show Celsius
| Month | Avg. High (°C) | Avg. Mean (°C) | Avg. Low (°C) |
|---|---|---|---|
| Jan | 6.3 | 1.9 | -2.1 |
| Feb | 8.5 | 3.5 | -1 |
| Mar | 12 | 6.6 | 1.3 |
| Apr | 17.1 | 10.9 | 4.4 |
| May | 22.7 | 16.1 | 8.9 |
| Jun | 25.9 | 19.2 | 12.3 |
| Jul | 28.9 | 23 | 14.7 |
| Aug | 29.7 | 22.9 | 14.7 |
| Sep | 25.6 | 18.7 | 11.4 |
| Oct | 19.5 | 13.1 | 7.7 |
| Nov | 14.4 | 8.4 | 3.2 |
| Dec | 8.3 | 4 | -0.3 |
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Bolu are July, August, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid to late August. For example, on the week of August 20th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early June with an average of 3 days of significant precipitation the week of June 4th.
When can you find snow in Bolu? Weather stations report large amounts of snow likely to be deepest around January, especially close to early to mid January. The best time to ski (if at all) in Bolu is often around around January 15th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Bolu.
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Snow on the Ground
The graph below shows the average snow on the ground in Bolu (in).
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Average Rain and Snow by Month
Show Inches
| Month | Daily Chance of Rain | Average Snow Depth (in) | Total Precipitation (in) |
|---|---|---|---|
| Jan | 22% | 4.9 | 2.5 |
| Feb | 21% | 3.9 | 1.9 |
| Mar | 27% | 3.1 | 2.5 |
| Apr | 21% | 2.8 | 2.1 |
| May | 23% | 0 | 2.6 |
| Jun | 23% | 0 | 3.1 |
| Jul | 6% | 0 | 0.8 |
| Aug | 6% | 0 | 0.6 |
| Sep | 10% | 0 | 1.2 |
| Oct | 17% | 0 | 2 |
| Nov | 14% | 0.8 | 1.2 |
| Dec | 20% | 3.5 | 2.3 |
Show Centimeters
| Month | Daily Chance of Rain | Average Snow Depth (cm) | Total Precipitation (cm) |
|---|---|---|---|
| Jan | 22 | 12.4 | 6.4 |
| Feb | 21 | 9.9 | 4.8 |
| Mar | 27 | 7.9 | 6.4 |
| Apr | 21 | 7.1 | 5.3 |
| May | 23 | 0 | 6.6 |
| Jun | 23 | 0 | 7.9 |
| Jul | 6 | 0 | 2 |
| Aug | 6 | 0 | 1.5 |
| Sep | 10 | 0 | 3 |
| Oct | 17 | 0 | 5.1 |
| Nov | 14 | 2 | 3 |
| Dec | 20 | 8.9 | 5.8 |
Humidity and Wind
Bolu has some very humid months, with other moderately humid months on the other side of the year. The least humid month is August (49.7% relative humidity), and the most humid month is January (74.3%).
Wind in Bolu is usually extremely calm. The windiest month is July, followed by August and April. July’s average wind speed of around 3 knots (3.5 MPH or 5.6 KPH) is considered “light air.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late August to early September where average top sustained speeds reach 6.8 knots, which is considered a light breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Bolu.
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Wind
The graph below shows wind speed (max and average) in knots.
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Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
| Month | Avg. Wind | Avg. Wind Feel | Sustained High Wind | High Wind Feel |
| Jan | 2.1 | Barely noticeable | 4.2 | Light breeze |
| Feb | 2.4 | Barely noticeable | 4.7 | Light breeze |
| Mar | 2.7 | Barely noticeable | 5.7 | Light breeze |
| Apr | 2.8 | Barely noticeable | 6.2 | Light breeze |
| May | 2.7 | Barely noticeable | 6 | Light breeze |
| Jun | 2.6 | Barely noticeable | 6 | Light breeze |
| Jul | 3 | Barely noticeable | 6.2 | Light breeze |
| Aug | 3 | Barely noticeable | 6.5 | Light breeze |
| Sep | 2.6 | Barely noticeable | 6 | Light breeze |
| Oct | 2.1 | Barely noticeable | 4.7 | Light breeze |
| Nov | 2 | Barely noticeable | 4.1 | Light breeze |
| Dec | 1.9 | Barely noticeable | 3.6 | Barely noticeable |
Show Relative Humidity by Month
| Month | Avg. Relative Humidity |
|---|---|
| Jan | 74.3% |
| Feb | 67.6% |
| Mar | 62.3% |
| Apr | 56.5% |
| May | 57% |
| Jun | 59.7% |
| Jul | 50.4% |
| Aug | 49.7% |
| Sep | 55.2% |
| Oct | 65.1% |
| Nov | 63.9% |
| Dec | 71.4% |
Is it Safe to Travel to Bolu?
Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Dec 04, 2023 there are travel warnings and regional advisories for Türkiye; exercise a high degree of caution and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Nov 23, 2023.
The Busiest and Least Crowded Months
The busiest month for tourism in Bolu, Turkey is January, followed by August and March. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Bolu in December. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
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Overall Bolu Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderately cold. Highs range from 76.5°F (24.7°C) and 48.7°F (9.3°C) with warmer temperatures in the later months. Rain is somewhat common with 6 to 8 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see the least precipitation with 2 to 7 days of precipitation per month. June – August is the busiest season for tourism in Bolu, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 81.7°F (27.6°C) and 53.7°F (12.1°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 3 to 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is too cold this time of year in Bolu to be enjoyable for warm weather travelers. The average high during this season is between 51.2°F (10.7°C) and 41.2°F (5.1°C). On average, it rains or snows a fair amount: 6 to 7 times per month. These times of year are fairly slow with tourists.
Best Times to Travel› Turkey › Bolu, Turkey