January Weather in Trnava, Slovakia

Last updated: August 31, 2025

In Trnava, Slovakia, January unveils a chilly embrace, with temperatures oscillating between a maximum of 14°C (57°F) and a biting minimum of -15°C (5°F). The month showcases an average temperature hovering around 0°C (32°F), enveloping the city in a crisp winter atmosphere. January also brings significant precipitation, totaling 35 mm (1.4 in) over 8 days, contributing to the season's high humidity levels at 90%. Whether wrapped in cozy layers or exploring the frosty landscape, residents and visitors alike experience the unique charm of Trnava in the heart of winter.

January Temperature in Trnava

In January, Trnava, Slovakia, experiences a chilly climate, with temperatures ranging from a brisk -15°C (5°F) to a mild 14°C (57°F). This month marks the peak of winter, where the city feels the full brunt of cold, averaging around 0°C (32°F). As the year progresses into February, the cold begins to wane slightly, with minimum temperatures around -12°C (11°F) and a subtle rise in the average to 3°C (37°F). Notably, March continues this trend, showcasing warmer days as it transitions into spring, with average temperatures reaching 6°C (43°F) and maximums soaring to 22°C (71°F). This gradual increase in warmth sets the stage for a vibrant spring, as the frosty grip of winter relinquishes its hold on this charming Slovak town.

January Weather in Trnava: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Trnava, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trnava, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec323742515970717262534436
Data source: Temperature data for Trnava generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Trnava

January in Trnava, Slovakia, experiences a moderate precipitation amount of 35 mm (1.4 in) over approximately 8 days of rain. This trend of consistent moisture continues through the winter months, with February and March seeing similar totals of 34 mm. As spring approaches in April, precipitation remains steady at 34 mm, hinting at a gradual rise in rainfall as the year progresses. Notably, there is a significant jump in May, where the total leaps to 77 mm (3.0 in), reflecting a typical increase in spring showers and setting the stage for the wetter summer months ahead. Overall, January’s early rain sets a balanced tone for the unfolding year, providing essential hydration while offering a glimpse of the seasonally shifting weather patterns.

January Precipitation Trends in Trnava

The chart displays monthly precipitation patterns in Trnava, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Trnava, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec353434357769767282535261
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Trnava

In January, Trnava, Slovakia experiences a notably high humidity level of 90%, setting the tone for a month often characterized by a damp chill. This humidity gradually decreases as winter transitions into spring, with February and March showing drops to 87% and 85%, respectively. As the months warm, humidity continues to decline, reaching its lowest point in May at 73%. However, a slight increase is observed during the summer months, maintaining around the mid-70s range from June to August. As autumn approaches, the humidity rises again, peaking in November and December at 90% and 91%, suggesting that the region's winter chill is often accompanied by a return to moist conditions. Overall, Trnava's humidity reflects a clear trend of high moisture in the colder months, contrasted with drier conditions in the warmer spring and early summer months.

January Average Humidity in Trnava

This chart illustrates the average monthly humidity levels in Trnava, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Trnava is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%85%78%74%77%76%76%75%85%90%91%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Trnava

In January, Trnava experiences a low UV Index of 2, indicating a safe period for outdoor activities with a burn time of 45 minutes before needing protection. As the months progress, a noticeable trend emerges: UV exposure increases, with February rising to a moderate Index of 3 and a reduced burn time of 30 minutes. By March, the UV Index jumps to 5, prompting a more cautious approach, while April reaches a high Index of 6, where sun protection becomes essential within just 25 minutes. The summer months challenge residents with very high indices peaking in June at 9, allowing only 15 minutes of unprotected sun exposure. As autumn unfolds, the UV Index gradually lessens, returning to low levels by December. Understanding these seasonal variations is crucial for enjoying the sun safely year-round in Trnava. For more details, visit Trnava UV Index.

Maximum UV Index Levels in Trnava for January

The chart shows the monthly maximum UV Index (UVI) for Trnava in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Trnava typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689886421
Data source: Trnava January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Trnava

In January, Trnava experiences a modest 150 hours of sunshine, setting the stage for a gradual increase as the year unfolds. By February, the sun's rays brighten the landscape with 217 hours, hinting at the approaching spring. The trend continues upward; March basks in 304 hours, and April reaches a vibrant 338 hours, showcasing a blossoming landscape under clear skies. As summer approaches, May and June delight residents with 385 and 419 hours of sunshine, respectively, allowing outdoor activities to flourish. The sun hits its peak in July at 431 hours, creating the perfect backdrop for summer adventures. As the seasons transition, August retains some of that warmth with 394 hours, though there's a noticeable decline in September with 325 hours. The sun gradually recedes in October with 270 hours, followed by the cooler months of November and December, where the sunshine dips to 189 and 166 hours. This annual cycle paints a vivid picture of Trnava's climate, celebrating the radiant sun during warmer months and embracing the quieter, dimmer days of winter.

Monthly Sunshine Duration in Trnava: January Highlighted

The January sunshine duration represents the total number of hours Trnava experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec150h217h304h338h385h419h431h394h325h270h189h166h
Data source: Trnava January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Trnava During January

In Trnava, Slovakia, January presents a relatively dismal forecast for sunshine, with only a 28% chance of sunny days. This trend continues into the winter months, as December sees the lowest likelihood at 22%, suggesting that this time of year is characterized by cloudier skies and less daylight. However, as the calendar transitions into February, there's a noticeable uplift to 37%, hinting at a gradual shift towards brighter conditions. The likelihood of sunny weather sees a marked increase in March, jumping to 56%, showcasing the early signs of spring awakening. Overall, while January may feel rather gloomy, the data indicates that the days become decidedly brighter as winter wanes, with sunshine becoming increasingly frequent as the seasons change.

Percentage of Sunny Days in January in Trnava

The chart illustrates the percentage of sunny days in Trnava throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Trnava experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%37%56%39%38%56%51%41%51%52%29%22%
Data source: Trnava January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Trnava in January

In Trnava, Slovakia, January brings a modest 8 hours of daylight, setting the stage for a gradual increase as winter wanes. As we transition into February, the days begin to lengthen noticeably, reaching 10 hours, which heralds the approach of spring. March continues this upward trend with 11 hours of daylight, while April sees a significant jump to 13 hours, invigorating the landscape with more natural light. May and June peak at 15 and 16 hours respectively, showcasing the vibrant energy of the season. The daylight starts to recede again in July, with 15 hours, followed by August at 14 hours, marking a gentle shift towards autumn. As September transitions to 12 hours, the days grow shorter, continuing through October and November with 10 and 9 hours respectively, before returning to January's familiar 8 hours. This rhythmic ebb and flow of daylight elegantly mirrors the changing seasons in Trnava, capturing the essence of nature's cycle.

Average Daylight Hours in Trnava for January

The chart illustrates the variation in daylight duration in Trnava throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 48m10h 11m11h 55m13h 42m15h 13m16h15h 36m14h 14m12h 31m10h 46m9h 12m8h 22m
Data source: Trnava daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Trnava

In Trnava, Slovakia, January ushers in a gentle embrace of wind, with an average speed of 3.0 m/s (7 mph)—a pace that resonates with the calm of winter. This modest flow continues its presence into March, suggesting a stable pattern as the season transitions. However, a slight uptick can be seen in April and May, where averages increase to 3.6 m/s (8 mph) and 3.8 m/s (8 mph), invigorating the atmosphere as spring unfurls. The summer months bring a dip, particularly in June and August, where winds soften to 2.7 m/s (6 mph) and 2.4 m/s (5 mph), creating a more serene environment. As the year progresses into autumn, winds pick up again, reflecting a return to more robust speeds in October at 3.4 m/s (8 mph). Overall, January's wind sets the tone for a year that ebbs and flows, hinting at the ever-changing dance of the seasons.

Average January Wind Speed in Trnava

The chart displays monthly wind speed patterns in Trnava, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.0 m/s3.23.03.63.82.73.02.42.53.43.13.3
Data source: Trnava January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Trnava Compares to Other Months

Weather in Trnava varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Trnava, focusing on differences in temperature, rainfall, humidity, and UV levels.

January and February showcase notable differences in weather patterns. January experiences colder temperatures with a minimum of -15°C (5°F) and an average of 0°C (32°F), while February offers milder conditions, starting with a minimum of -12°C (11°F) and an average of 3°C (37°F). Although the precipitation levels are quite similar—35 mm (1.4 in) in January and 34 mm (1.3 in) in February—both months see about 8 days of rain. Additionally, February benefits from slightly lower humidity at 87%, compared to January's 90%. For more specific details on February weather, visit Trnava weather in February.

In January, temperatures can drop as low as -15°C (5°F) and typically average around 0°C (32°F), with a maximum of 14°C (57°F). The month experiences about 35 mm (1.4 in) of precipitation over approximately 8 days, coupled with high humidity levels at 90%. In contrast, March shows a noticeable warming trend, with minimum temperatures around -12°C (10°F) and an average of 6°C (43°F). The maximum can reach 22°C (71°F), and precipitation remains similar at 34 mm (1.4 in) over 7 days, with humidity slightly lower at 85%. For more detailed insights, you can check out Trnava weather in March.

January and April present stark contrasts in weather, showcasing the transition from winter to spring. In January, temperatures can dip as low as -15°C (5°F), with an average temperature of 0°C (32°F) and a maximum reaching 14°C (57°F). The month sees around 35 mm (1.4 in) of precipitation over 8 days and high humidity levels at 90%. In comparison, April brings a significant warming trend, with minimum temperatures around -5°C (23°F), an average of 11°C (52°F), and highs soaring to 29°C (84°F). Precipitation remains similar at 34 mm (1.4 in) over just 7 days, but humidity decreases to a more comfortable 78%. For a more detailed look at the weather in April, visit Trnava weather in April.

January and May present stark contrasts in weather conditions. In January, temperatures can plummet to a minimum of -15°C (5°F), with an average temperature of 0°C (32°F) and a maximum reaching 14°C (57°F). The month sees a considerable amount of precipitation, measuring 35 mm (1.4 in) over about 8 days, accompanied by high humidity levels of 90%. In contrast, May experiences much milder and warmer weather, with temperatures ranging from a minimum of -1°C (31°F) to an average of 15°C (60°F) and a maximum of 31°C (89°F). This month also has increased precipitation, totaling 77 mm (3.0 in) over 13 days, but with lower humidity at 73%. For more details on May weather in Trnava, you can check Trnava weather in May.

In January, the weather in Trnava is characterized by bitterly cold temperatures, with a minimum of -15°C (5°F) and an average of 0°C (32°F), while high temperatures reach only up to 14°C (57°F). The precipitation level is relatively low at 35 mm (1.4 in), falling over approximately 8 days, and the humidity is quite high at 90%, adding to the chilly atmosphere.

In contrast, June brings a much warmer climate, with temperatures ranging from a minimum of 8°C (46°F) to a balmy average of 21°C (70°F) and peak highs of 34°C (93°F). Although the precipitation increases to 69 mm (2.7 in) over about 11 days, the humidity drops to a more comfortable 77%. For more detailed information about the weather in Trnava during June, you can check out Trnava weather in June.

January and July present starkly contrasting weather conditions. In January, temperatures can plummet to a minimum of -15°C (5°F), with an average hovering around 0°C (32°F) and a maximum of 14°C (57°F). This chilly month experiences high humidity levels of 90%, accompanied by about 35 mm (1.4 in) of precipitation over eight days. In contrast, July boasts a much warmer climate, with minimum temperatures of 7°C (45°F), an average of 22°C (71°F), and a maximum reaching a sweltering 36°C (97°F). Though July sees more precipitation at 76 mm (3.0 in), it occurs over a few more days—11 in total—and with lower humidity at 76%. For more detailed information, check out Trnava weather in July.

January and August in Trnava present a stark contrast in weather conditions. In January, temperatures can drop as low as -15°C (5°F), with an average of around 0°C (32°F) and a modest maximum of 14°C (57°F). The month experiences significant humidity at 90%, alongside precipitation occurring on about 8 days, totaling 35 mm (1.4 in). In contrast, August brightens the landscape with a minimum temperature of 8°C (47°F) and a much warmer average of 22°C (72°F), peaking at a sweltering 37°C (100°F). While August sees slightly more precipitation with 72 mm (2.9 in) over 10 days, the humidity is notably lower at 76%. For more details on the weather specifics during this warm month, check out Trnava weather in August.

In January, the weather is characterized by cold temperatures, with a minimum of -15°C (5°F) and an average of 0°C (32°F), making it a stark contrast to September. January receives around 35 mm (1.4 in) of precipitation over 8 days, coupled with high humidity levels at 90%. In September, temperatures rise significantly, ranging from a minimum of 2°C (35°F) to a maximum of 32°C (90°F), with an average of 17°C (62°F). The month sees increased precipitation at 82 mm (3.2 in) over 9 days, although humidity is lower at 75%. For more detailed insights on the weather patterns during this month, visit Trnava weather in September.

January and October showcase distinct weather patterns, reflecting the transition from winter to autumn. In January, temperatures can drop significantly, with a minimum of -15°C (5°F) and an average around 0°C (32°F), while reaching a maximum of 14°C (57°F). The month typically sees around 35 mm (1.4 in) of precipitation over approximately eight days, along with high humidity levels of 90%. In contrast, October offers a milder climate with minimum temperatures around -2°C (29°F), averaging 12°C (53°F), and peaking at 25°C (77°F). Precipitation increases slightly to 53 mm (2.1 in) over the same number of days but comes with a lower humidity of 85%. For more insights into what to expect, check out Trnava weather in October.

January and November present distinct weather patterns, with January typically being much colder. In January, temperatures can range from a frigid minimum of -15°C (5°F) to a maximum of 14°C (57°F), averaging around 0°C (32°F). In contrast, November sees milder temperatures, with a minimum of -7°C (19°F) and a maximum of 19°C (67°F), averaging 6°C (44°F). While both months experience high humidity at 90%, November is slightly wetter, receiving 52 mm (2.0 in) of precipitation over about 10 days compared to January's 35 mm (1.4 in) over 8 days. For more specific insights on November weather, check out Trnava weather in November.

In January, temperatures typically dip lower than in December, with minimums reaching -15°C (5°F) compared to December's milder minimum of -7°C (20°F). The average temperature in January is around 0°C (32°F), while December sees an average of 2°C (36°F). Precipitation in December is also higher, with 61 mm (2.4 in) falling over 12 days, compared to January's 35 mm (1.4 in) over just 8 days. Both months experience high humidity, with January at 90% and December slightly higher at 91%. For more details on December's weather, you can check Trnava weather in December.

Compare Trnava's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Trnava

January in Trnava presents a distinct shift from the milder conditions of other months, immersing the region in the chill of winter. With temperatures often dipping to a chilly minimum, this month can feel biting, especially when compared to the more temperate springs and warm summers. Precipitation, though lower than in the rainy months, still contributes to a damp atmosphere, complemented by high humidity levels that amplify the cold. As you experience the frosty landscapes, you’ll find January is truly a month of contrast—a time when the beauty of winter blankets the city while promising the imminent approach of spring. For a deeper understanding of Trnava's yearly weather patterns, visit Trnava Climate.