Last updated: August 21, 2025
In Hanko, Finland, January presents a striking mix of winter chill and moisture. The maximum temperature hovers around 8°C (46°F), while the average settles at a brisk 1°C (33°F), dipping to a chilly minimum of -13°C (8°F). This month sees 56 mm (2.2 in) of precipitation spread over 14 days, contributing to the region's high humidity of a substantial 92%. Overall, January in Hanko is characterized by its stark yet beautiful winter landscape, making it a unique time for both residents and visitors.
In January, Hanko, Finland, experiences a chilly climate as winter firmly takes hold. With minimum temperatures plummeting to -13°C (8°F), you can expect icy conditions that define the month. However, the average temperature hovers around 1°C (33°F), providing brief moments of mildness amidst the cold. Daytime highs can reach up to 8°C (46°F), offering a slight reprieve from the deep freeze. This month sets the tone for winter in Hanko, contrasting markedly with the upcoming months as temperatures gradually rise, hinting at the transition from frigid winter to the more temperate early spring ahead. Expect the chill to linger, but know that change is on the horizon as days slowly begin to warm.
In January, Hanko, Finland experiences a moderate precipitation of 56 mm (2.2 in) spread across approximately 14 days. This marks a gradual decline from the wetter months of October and November, which see significantly higher precipitation levels, with October peaking at 123 mm (4.8 in). Interestingly, January's precipitation aligns closely with February's 49 mm (1.9 in). The distribution of rainy days during January sets the stage for a wetter winter, as it serves as a transition toward the drier months ahead, such as April and May, which average around 28 mm (1.1 in) and 36 mm (1.4 in), respectively. This pattern highlights Hanko’s dynamic winter weather, offering a balance of chilly conditions and frequent, albeit light, rain.
In Hanko, Finland, January embraces a strikingly high humidity level of 92%, setting the stage for a winter characterized by a moist chill. As the year unfolds, this humidity gradually tapers off, with February and March following closely at 91% and 90% respectively, creating a consistently damp environment. By April, a shift occurs as humidity drops to 87%, hinting at the approaching spring. This trend continues throughout the warmer months, culminating in a noticeable dip to 76% in May, before stabilizing around the 80% mark during June and July. As autumn arrives, humidity levels creep back up, peaking again at 91% in November, only to settle at 90% in December. Overall, Hanko's humidity pattern reflects a cyclical rhythm that underscores the region's maritime climate, oscillating between damp winters and comfortably humid summers.
In Hanko, Finland, January welcomes a low UV Index of 1, indicating minimal sun exposure risk with a safe burn time of 45 minutes. As winter persists, this index remains steady through February, providing continued reassurance for outdoor activities. However, as spring approaches in March, the UV Index rises to 3, signifying a shift to moderate exposure with a reduced burn time of 30 minutes. This upward trend continues into April and May, where the index peaks at 5 during late spring, urging residents to be more mindful of sun safety despite the comparatively brisk temperatures. As the summer sun graces Hanko, the UV Index escalates further to 7 in June and July, marking a high exposure category where burn times shrink to just 25 minutes. The UV levels gradually decline as autumn approaches, settling back to a comfortable 1 by November. For more in-depth details on sun exposure and safety, check out the comprehensive Hanko UV Index.
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In Hanko, Finland, the January sunshine is modest, offering only 66 hours of daylight, a stark contrast to the brightness that begins to awaken with February’s 171 hours. As winter loosens its grip, the sunlit hours surge dramatically, culminating in a vibrant 276 hours by March. With each passing month, sunlight becomes increasingly plentiful, peaking in the luminous days of June, where residents enjoy 490 hours of sunshine. This trend continues into midsummer, gradually tapering off as autumn approaches, leading to a gentle decline back to 135 hours in November and a mere 73 hours by December. This rhythmic dance of daylight captures the essence of Hanko's seasonal transformation, where each month's sunshine paints a unique picture that brightens the spirit through the long Finnish winter.
In Hanko, Finland, the likelihood of sunny weather is at its lowest in January, with only a meager 5% chance of sunshine. As winter transitions into spring, this figure gradually increases, peaking in the warmer months of July and June, where residents enjoy over half the days basking in the sun. The trend becomes quite evident as February sees a rise to 19%, followed by March at 37% and April reaching a balanced 50%. This pattern highlights a significant seasonal shift, where the chances of sun transform dramatically, offering a welcoming respite from the prolonged winter gloom. By the time autumn rolls around, the likelihood of clear skies diminishes again, showcasing a fascinating yearly cadence of Hanko's weather.
In Hanko, Finland, January marks the beginning of the year with just six hours of daylight, creating a stark contrast to the longer days that follow. As February arrives, daylight increases to nine hours, hinting at the gradual return of the sun and the promise of brighter days ahead. By March, residents enjoy eleven hours of light, further lifting spirits as winter recedes. The transition continues into April with a notable fourteen hours of daylight, leading up to the longest days of summer in June, where daylight peaks at an impressive eighteen hours. This abundance of light continues into July before gradually tapering off in the fall months, with August still offering fifteen hours. As autumn settles in, daylight declines to ten hours by October, and further dwindles to seven hours in November, ultimately returning to the winter gloom of six hours by December. This cyclical dance of daylight throughout the year beautifully illustrates the rhythm of the seasons in this coastal town.
In January, the coastal town of Hanko, Finland experiences a brisk average wind speed of 7.5 m/s (17 mph), setting a lively tone for the winter month. This gusty start transitions into a slightly calmer February with winds averaging 6.5 m/s (15 mph), offering a brief respite before the winds pick up again in March at 7.8 m/s (18 mph). Interestingly, as spring approaches, wind speeds begin to fluctuate more noticeably, with April cooling to 7.2 m/s (16 mph) and May dropping further to 5.9 m/s (13 mph). The summer months witness a gentle lull, with June averaging 4.8 m/s (11 mph) before the wind picks up again in August to 7.1 m/s (16 mph). As autumn sets in, there's a noticeable shift, with October embracing the highest winds at 9.3 m/s (21 mph), followed by November and December, which maintain a robust pace at 8.5 m/s (19 mph) and 7.9 m/s (18 mph), respectively. This trend highlights the dynamic nature of Hanko's winter and autumn winds, where conditions can shift quickly, enhancing the coastal experience.
Weather in Hanko varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Hanko, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparison to January, February experiences slightly colder average temperatures, with an average of -1°C (31°F) compared to January's 1°C (33°F). Both months have the same minimum temperature of -13°C (8°F), but February’s maximum temperature is lower at 6°C (43°F) compared to January's 8°C (46°F). Precipitation decreases slightly from 56 mm (2.2 in) in January to 49 mm (1.9 in) in February, and the number of rainy days also reduces from 14 to 11. Humidity remains fairly consistent, with January at 92% and February at 91%. For more information on February weather specifics, check Hanko weather in February.
January and March exhibit noticeable differences in weather conditions, despite both being winter months. In January, temperatures range from a chilly -13°C (8°F) at night to a maximum of 8°C (46°F) during the day, with an average of 1°C (33°F). This month also sees higher precipitation, totaling 56 mm (2.2 in) over 14 days, coupled with a humidity level of 92%. In contrast, March features slightly milder temperatures, with a minimum of -10°C (13°F) and a maximum of 7°C (44°F), averaging around 0°C (33°F). Precipitation decreases to 50 mm (2.0 in) over just 10 days, alongside a slight dip in humidity to 90%. For a closer look at Hanko's weather in March, you can visit Hanko weather in March.
January and April present a notable contrast in weather conditions. In January, temperatures can plummet to a minimum of -13°C (8°F), with an average of 1°C (33°F) and a maximum of 8°C (46°F). The month is characterized by high humidity at 92% and a significant amount of precipitation, totaling 56 mm (2.2 in) over 14 days. In contrast, April sees milder temperatures, with a minimum of -2°C (29°F), an average of 3°C (38°F), and a maximum of 9°C (49°F). Precipitation decreases to 28 mm (1.1 in) and occurs over just 7 days, while humidity is slightly lower at 87%. For more details, you can check Hanko weather in April.
In January, the weather is significantly colder, with temperatures ranging from a brisk minimum of -13°C (8°F) to a maximum of 8°C (46°F) and an average of 1°C (33°F). The month sees considerable precipitation, totaling 56 mm (2.2 in) over about 14 days, coupled with high humidity levels at 92%. In contrast, May welcomes milder conditions, with temperatures starting at a minimum of 1°C (35°F) and reaching a pleasant maximum of 18°C (64°F), averaging 8°C (46°F). The precipitation decreases to 36 mm (1.4 in) over just 7 days, and humidity also drops to a more comfortable 76%. For a closer look at weather specifics during this time, visit Hanko weather in May.
In January, the weather is notably cold, with temperatures ranging from a frigid minimum of -13°C (8°F) to a maximum of 8°C (46°F) and an average of just 1°C (33°F). The month experiences considerable moisture, with 56 mm (2.2 in) of precipitation spread over 14 days, paired with high humidity at 92%. In contrast, June brings a significant shift in climate, with milder temperatures that range from a minimum of 6°C (44°F) to a comfortable average of 14°C (57°F) and a high reaching 22°C (73°F). Precipitation decreases to 37 mm (1.5 in) over only 6 days, and humidity is lower at 80%. For a closer look at the warm weather conditions, explore Hanko weather in June.
January and July present distinctly different weather patterns. In January, temperatures plunge, with averages around 1°C (33°F) and a minimum of -13°C (8°F), while the humidity remains high at 92%. This month also sees significant precipitation spread over about 14 days. In contrast, July offers a much milder climate, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 25°C (76°F) and an average of 17°C (63°F). The humidity decreases to 80%, and precipitation is lower, occurring over just 8 days. For more information on July weather specifically, you can check Hanko weather in July.
In January, Hanko experiences significantly colder temperatures, with an average around 1°C (33°F) and occasional lows plunging to -13°C (8°F). The month is characterized by high humidity at 92% and roughly 56 mm (2.2 in) of precipitation over 14 days. In contrast, August brings a much milder and pleasant climate, featuring average temperatures of 17°C (63°F) and highs reaching up to 23°C (73°F). Although the precipitation increases to 94 mm (3.7 in) over 13 days, the overall humidity drops to a more comfortable 83%. For more details, you can check Hanko weather in August.
In January, the weather is notably colder, with temperatures ranging from a minimum of -13°C (8°F) to a maximum of 8°C (46°F), and an average of around 1°C (33°F). In addition to the frigid temperatures, January experiences high humidity at 92% and approximately 56 mm (2.2 in) of precipitation spread over 14 days. In contrast, September offers a milder climate, with temperatures varying from a minimum of 7°C (45°F) to a comfortable maximum of 20°C (68°F), averaging 14°C (57°F). Although September sees a bit more precipitation at 71 mm (2.8 in) across the same number of days, the humidity is slightly lower at 87%. For a detailed look at the weather specifics, you can visit Hanko weather in September.
In January, temperatures are significantly colder, with a minimum of -13°C (8°F) and an average of 1°C (33°F), while October enjoys milder conditions with a minimum of 1°C (35°F) and an average of 10°C (49°F). January also experiences less precipitation at 56 mm (2.2 in) over 14 days, compared to October's higher total of 123 mm (4.8 in) across 19 days. Despite being slightly less humid, January's humidity stands at 92%, while October's is a close 90%. For a more detailed look at October weather, visit Hanko weather in October.
In January, temperatures are sharper, with a minimum plunging to -13°C (8°F) and an average around 1°C (33°F), while November enjoys milder conditions, ranging from a minimum of -3°C (26°F) to an average of 6°C (43°F). Precipitation levels are also notable, with January receiving 56 mm (2.2 in) over 14 days, compared to November’s 82 mm (3.2 in) across 17 days, indicating a wetter month. Despite the difference in rainfall, humidity is fairly consistent, sitting at 92% in January and slightly lower at 91% in November. For more details on the weather specifics in November, you can visit Hanko weather in November.
In comparing the weather of January and December, it’s evident that both months experience cold temperatures, but January tends to be slightly colder. January sees minimum temperatures drop to -13°C (8°F) compared to December's milder minimum of -9°C (17°F). The average temperature in January is around 1°C (33°F), while December averages at 2°C (36°F). Precipitation levels are higher in December, with 80 mm (3.1 in) falling over 19 days, compared to January's 56 mm (2.2 in) over 14 days. Additionally, humidity remains high in both months, with January at 92% and December slightly lower at 90%. For more specific details on December's weather, you can check Hanko weather in December.
January in Hanko presents a distinct contrast to the milder months of the year, characterized by its chilling temperatures and heightened humidity. With frequent precipitation over nearly half the month, residents and visitors alike experience a stark departure from the more temperate conditions of spring and summer. The crisp air, often dipping into freezing territory, is a reminder of winter's strong grip. Despite the cold, January's atmosphere holds a unique charm, inviting adventure in the serene, frosty landscape. For a deeper understanding of Hanko's varied climate throughout the year, explore the complete details here: Hanko Climate.