Last updated: August 27, 2025
January in Bolu, Turkey presents a captivating winter landscape, with temperatures ranging from a chilly minimum of -19°C (-2°F) to a comfortable maximum of 17°C (63°F). The average temperature hovers around 0°C (32°F), creating the perfect backdrop for snow and seasonal activities. Visitors can expect 91 mm (3.6 in) of precipitation across 13 days, adding to the region's picturesque charm. With humidity levels at a notable 84%, January in Bolu offers a unique blend of frosty air and breathtaking scenery, making it an enchanting destination for winter enthusiasts.
In Bolu, Turkey, January presents a striking display of winter’s chill, with temperatures plunging as low as -19°C (-2°F) at night, while the average temperature hovers around 0°C (32°F), offering a stark reminder of the season's grip. Despite these frigid lows, daytime highs can reach up to 17°C (63°F), providing fleeting warmth during the sunniest hours. This contrasting temperature trend marks January as one of the coldest months, setting the stage for a gradual warming in February and beyond, where temperatures steadily rise, ultimately leading to the crisp, refreshing days of spring. As the month progresses, residents and visitors alike can experience both the icy beauty and the gradual transition toward milder weather, making Bolu an enchanting destination for winter enthusiasts.
January in Bolu, Turkey, sets the stage for a wet winter, with an average precipitation of 91 mm (3.6 in) spread across approximately 13 rainy days. This month marks a significant start to the year, showcasing a robust level of rainfall that transitions into February’s slightly lower 81 mm (3.2 in) and mirrors April's precipitation, suggesting a pattern of consistency in the wet season. As the months roll into spring, notably March and May, rainfall peaks at 116 mm (4.6 in) and 131 mm (5.2 in) respectively, revealing a trend of increasing precipitation leading up to the lush greenery of late spring. Interestingly, January’s rainfall is quite balanced compared to the latter half of the year, where July sees a marked reduction to just 71 mm (2.8 in). Overall, Bolu's January precipitation not only lays the groundwork for the year ahead but also highlights the region's rich climatic patterns, driven by its seasonal transitions.
In January, Bolu, Turkey experiences a high humidity level of 84%, setting the tone for a season marked by moisture. This trend continues into February, where humidity rises slightly to 85% before stabilizing at 84% in March. As spring approaches in April and May, humidity begins to drop, reaching 78% in both months. The summer months bring a more noticeable decline, with humidity levels decreasing to 62% by July and further down to 53% in August. However, as autumn sets in, humidity starts to creep up again, hitting 76% in October and climbing back to 83% in November, before closing the year at another high of 85% in December. This cyclical pattern leads us through a year marked by overall elevated humidity, punctuated by the welcome relief of drier summer months.
In January, Bolu, Turkey experiences a moderate UV Index of 3, indicating that while sun exposure is relatively safe, caution is still advised. With a burn time of 30 minutes, it’s a good idea to enjoy the winter sun with some protective measures. As spring approaches in February, the UV Index rises to 5, maintaining the moderate level but hinting at the sunnier days ahead. This trend continues into March, where the Index spikes to a high 7, reducing the recommended burn time to 25 minutes. The changing seasons mark a significant jump in UV exposure as the summer months arrive, peaking in June with an extreme UV Index of 11 and a drastic burn time of only 10 minutes. As summer transitions into fall, the Index begins to decline, yet remains notably high through the peak months, with June and July reaching 10. By November and December, the UV Index drops back to more manageable levels, reflecting a seasonal pattern where winter yields lower UV exposure. To learn more about the UV Index trends throughout the year, visit Bolu UV Index.
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January in Bolu, Turkey, typically welcomes 175 hours of sunshine, marking the beginning of a gradual upward trend in daylight hours as the months progress. By February, the sun's embrace strengthens to 236 hours, heralding longer days. This sunny ascent continues through spring and into summer, peaking in July with an impressive 415 hours of bright skies. As the warmth of summer begins to wane, sunlight remains abundant through August and September, albeit at slightly reduced levels. As autumn sets in, the golden rays gradually diminish, with November and December offering 257 and 217 hours respectively. This seasonal pattern not only highlights the vibrant sunlight Bolu experiences but also showcases the enchanting shift from winter's chill to the warmth of summer bliss.
In Bolu, Turkey, January presents a 26% chance of sunny weather, making it one of the cooler months in terms of clear skies. As we transition into February, the likelihood of sunshine sees a significant uptick to 41%, hinting at the promise of brighter days ahead. This upward trend continues into March with a 32% chance, while April drops slightly to 27%. The warmth of late spring truly arrives in May, boasting a 51% chance of sunshine, which peaks further with the sultry summer months. Overall, while January's sunshine may be limited, it paves the way for a gradual increase as the year progresses.
In Bolu, Turkey, January ushers in a modest 9 hours of daylight, marking the start of a gradual increase throughout the winter months. As February unfolds, daylight extends to 10 hours, signaling the approach of spring. By March, the days grow even longer, with 11 hours of sun, and April shines brightly at 13 hours. The trend continues into May, where daylight peaks at 14 hours. Although June offers the longest days at 15 hours, July witnesses a slight decline to 14 hours. The remainder of summer gently tapers off, with August offering 13 hours and September 12 hours. As autumn sets in, October returns to 11 hours, followed by a return to 9 hours in both November and December, reflecting the cyclical nature of daylight in this picturesque region.
In Bolu, Turkey, the January winds usher in the year with an average speed of 2.4 m/s (5 mph), setting a brisk but manageable pace that contrasts nicely with the gentle breezes of later months. As winter transitions into spring, wind speeds gradually decrease, dipping to 2.1 m/s (5 mph) in February and reaching a low of 1.7 m/s (4 mph) by June. This subtle decline reflects the calming progression of the seasons, with the wind picking up slightly again in July before returning to a more serene state by autumn. Interestingly, the year's final months witness a slight uptick, culminating at 2.3 m/s (5 mph) in December. Overall, the trend highlights a shift from the invigorating gusts of winter to the soft whispers of summer, creating a dynamic dance of the elements throughout the year.
Weather in Bolu varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Bolu, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures range from a chilly minimum of -19°C (-2°F) to a maximum of 17°C (63°F), with an average temperature around 0°C (32°F). The month experiences a substantial amount of precipitation, totaling 91 mm (3.6 in) over 13 days, accompanied by high humidity levels of 84%.
Conversely, February witnesses slightly milder conditions, with temperatures fluctuating from a minimum of -16°C (3°F) to a maximum of 16°C (62°F), resulting in an average temperature of 2°C (36°F). Precipitation decreases slightly to 81 mm (3.2 in), also occurring over 13 days, and humidity remains relatively high at 85%. For more detailed insights on February weather, you can check Bolu weather in February.
January and March exhibit notable differences in weather patterns, despite both months experiencing similar minimum temperatures of around -19°C (-2°F). In January, the average temperature hovers at 0°C (32°F) with a maximum of 17°C (63°F), while March sees a rise in average temperature to 4°C (40°F) and a higher maximum of 21°C (70°F). Precipitation also varies slightly, with January receiving 91 mm (3.6 in) over 13 days, compared to March's 116 mm (4.6 in) spread across 15 days. Both months share a consistent humidity level of 84%, contributing to a chilly but evolving transition into spring. For more information about the weather specifics in March, visit Bolu weather in March.
In January, the weather is characterized by much colder temperatures, with a minimum of -19°C (-2°F) and an average of 0°C (32°F), whereas April brings milder conditions, with minimum temperatures rising to -3°C (26°F) and an average of 9°C (48°F). The maximum temperatures in January reach 17°C (63°F), compared to April’s higher peak of 23°C (73°F). Both months receive similar precipitation levels at 91 mm (3.6 in), but January experiences slightly fewer rainy days (13) compared to April (14). Additionally, January has a higher humidity of 84%, while April's humidity decreases to 78%. For a closer look at April's weather specifics, visit Bolu weather in April.
In January, the weather can be quite harsh, with temperatures ranging from a chilling -19°C (-2°F) to a maximum of 17°C (63°F) and an average of 0°C (32°F). This month experiences significant precipitation, totaling 91 mm (3.6 in) over about 13 days, combined with high humidity levels at 84%. In stark contrast, May boasts much milder conditions, with temperatures starting at a minimum of -1°C (30°F), averaging 13°C (57°F), and peaking at a warm 30°C (86°F). May also sees an increase in precipitation to 131 mm (5.2 in) over 17 days, but with slightly lower humidity at 78%. For more details on May weather, visit Bolu weather in May.
In January, the weather is notably harsh, with temperatures ranging from a chilling minimum of -19°C (-2°F) to a maximum of 17°C (63°F), averaging around 0°C (32°F). The month sees significant precipitation, totaling 91 mm (3.6 in) across 13 days, accompanied by high humidity levels at 84%. In stark contrast, June presents a far more temperate climate, with temperatures varying from a minimum of 4°C (39°F) to a pleasant maximum of 27°C (82°F), averaging 17°C (62°F). Although June experiences increased rainfall of 129 mm (5.1 in) over 19 days, the humidity drops to a more comfortable 71%. For more detailed insights on June weather, visit Bolu weather in June.
In January, the weather in Bolu is characterized by frigid temperatures, with lows plunging to -19°C (-2°F) and an average temperature around 0°C (32°F). The region experiences significant precipitation of 91 mm (3.6 in) over 13 days, coupled with high humidity levels of 84%. In stark contrast, July brings milder and warmer conditions, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 31°C (88°F), and an average of 19°C (67°F). Precipitation decreases to 71 mm (2.8 in) over just 11 days, and humidity drops to 62%, offering a more comfortable summer climate. For more specific details on July weather, visit Bolu weather in July.
In January, the weather is characterized by frigid temperatures, with lows reaching an alarming -19°C (-2°F) and an average of just 0°C (32°F). The month sees considerable precipitation, totaling 91 mm (3.6 in) over 13 days, and a high humidity level of 84%, contributing to a chilly atmosphere. In stark contrast, August offers much milder conditions, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 33°C (92°F) and an average of 20°C (68°F). Precipitation in August is significantly lower at 43 mm (1.7 in) over only 7 days, accompanied by a more comfortable humidity level of 53%. The stark differences between these two months highlight the seasonal contrasts, making January a time for warmth indoors, while August invites outdoor activities. For further details, check out Bolu weather in August.
January and September showcase stark differences in weather conditions. In January, temperatures can plunge as low as -19°C (-2°F), while the average hovers around 0°C (32°F), reaching a maximum of 17°C (63°F). This month also experiences significant precipitation, with 91 mm (3.6 in) falling over 13 days and high humidity at 84%. In contrast, September offers a much warmer climate, with minimum temperatures of 1°C (34°F) and average highs of 16°C (62°F), peaking at a maximum of 34°C (93°F). Precipitation decreases to 51 mm (2.0 in) across just 8 days, and humidity drops to a more comfortable 61%. For more information on weather specifics in September, visit Bolu weather in September.
January and October present contrasting weather conditions. In January, temperatures can plunge to a minimum of -19°C (-2°F) and average around 0°C (32°F), with a maximum of 17°C (63°F). The month experiences about 91 mm (3.6 in) of precipitation over 13 days, coupled with high humidity at 84%. In stark contrast, October boasts milder temperatures with a minimum of -2°C (29°F), an average of 12°C (54°F), and a maximum reaching 29°C (85°F). The precipitation level is slightly lower at 78 mm (3.1 in) over 9 days, with humidity decreasing to 76%. For more detailed insights, check out Bolu weather in October.
In January, the weather tends to be quite harsh, with temperatures ranging from a frigid minimum of -19°C (-2°F) to a maximum of 17°C (63°F) and an average of around 0°C (32°F). This month also sees significant precipitation, with 91 mm (3.6 in) falling over 13 days, accompanied by high humidity levels averaging 84%. In contrast, November offers a milder climate, where temperatures range from a minimum of -6°C (21°F) to a pleasant maximum of 21°C (69°F), yielding an average temperature of 7°C (44°F). During November, precipitation decreases to 59 mm (2.3 in) over just 8 days, with humidity remaining relatively high at 83%. For more insights into November weather specifics, visit Bolu weather in November.
In January, temperatures range from a minimum of -19°C (-2°F) to a maximum of 17°C (63°F), with an average of 0°C (32°F). This month experiences about 91 mm (3.6 in) of precipitation over 13 days, while humidity remains relatively high at 84%. In contrast, December sees slightly warmer temperatures, with a minimum of -13°C (9°F) and an average of 3°C (39°F) to a maximum of 16°C (62°F). Precipitation is more frequent, totaling 117 mm (4.6 in) across 16 days, and humidity is slightly higher at 85%. For more details, you can check Bolu weather in December.
January in Bolu brings a distinct chill compared to other months, characterized by its average temperature hovering around freezing and occasional drops to well below zero. This month also sees a notable amount of precipitation, with frequent rainy days that give the landscape a fresh, wintry feel. The high humidity plays a significant role in the overall cold sensation, making this period quite different from the milder temperatures found in spring or the warmth of summer. If you're planning to visit, be prepared for a frosty adventure amidst Bolu's beautiful winter scenery. For a deeper insight into the region's weather patterns, check out Bolu Climate.