Climate of Slovakia

Last updated: April 14, 2025

The climate of Slovakia is characterized by a diverse range of temperatures and precipitation patterns across its regions. Winter months can see chilling lows, with temperatures plunging to a frigid -32°C (-26°F) in January in Banskobystrický kraj. In stark contrast, the summer heat can soar to a sweltering 39°C (103°F) in August in Nitriansky kraj. Precipitation varies considerably, with January receiving only 33 mm (1.3 in) in Nitriansky kraj but rising dramatically to 130 mm (5.1 in) in August in Žilinský kraj. Humidity levels fluctuate as well, averaging a minimum of 59% in August in Košický kraj, while reaching a maximum of 91% in December in the same region. This variability creates a rich tapestry of climate experiences throughout the year.

Slovakia Climate Zones

Slovakia boasts a diverse range of climate zones, with varying conditions across its regions. The northeastern areas, such as Prešovský kraj and Košický kraj, primarily experience Dfb (humid continental) climates, while segments of Banskobystrický kraj also share this classification. In contrast, the western regions, including Bratislavský Kraj and Trnava, are characterized by the milder Cfb (oceanic) climate. Nitriansky kraj also embraces this temperate zone. Žilinský kraj and parts of Trenčiansky kraj showcase a blend of Cfb and Dfb climates, providing a varied backdrop for local flora and fauna. Overall, Slovakia's climate zones offer a fascinating tapestry of weather patterns throughout the country, enhancing its natural beauty and agricultural diversity.

Köppen-Geiger Climate Classification of Slovakia
Climate ZoneDescription
CfbOceanic climate with mild temperatures and moderate rainfall year-round.
DfbHumid continental climate with warm summers and cold winters.
DfcSubarctic climate with cold, long winters and short, mild summers.

Slovakia Temperature by Month

Slovakia experiences a dramatic temperature range throughout the year, showcasing the country's diverse climate. January welcomes the chill with minimums plummeting to -32°C (-26°F) in Banskobystrický kraj, while the warmth peaks at 16°C (61°F) in Bratislavský Kraj. As winter recedes into February, temperatures gradually rise, culminating in a maximum of 19°C (67°F) in Nitriansky kraj by month's end. March introduces a more pronounced transition, with highs reaching 23°C (74°F) in Košický kraj. April surprises with maximums soaring to 30°C (86°F), proving that spring is on its way. As the warmer months of May and June unfold, temperatures can reach highs of 33°C (91°F) and a scorching 38°C (100°F), respectively, especially in areas like Košický kraj. July and August sustain this summer heat, with maxima peaking at 39°C (103°F) in Nitriansky kraj. As autumn approaches, September and October witness a cooling trend, presenting temperatures from as low as -3°C (27°F) to a comfortable 26°C (80°F). Finally, December descends into chill once more, with lows of -20°C (-4°F) in Prešovský kraj, contrasting with a mild 17°C (62°F) experienced in Nitriansky kraj. The cyclical dance of extremes not only highlights Slovakia's seasonal changes but also offers a tantalizing glimpse into the breadth of its climatic variations.

Monthly Temperatures in Slovakia

The chart illustrates Slovakia's temperature patterns throughout the year, with values aggregated from various locations across the region. It highlights seasonal variations and temperature changes across the months.
JanFebMarAprMayJunJulAugSepOctNovDec273238475565666757484031
Data source: Slovakia temperature data aggregated from multiple country locations, generated using Copernicus Climate Change Service information.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

Precipitation Patterns in Slovakia

Slovakia's precipitation patterns reveal notable seasonal variations, shaping the country’s climate and ecological environment. January typically sees the least precipitation, with only 33 mm (1.3 in) recorded in Nitriansky kraj, while August peaks dramatically at 130 mm (5.1 in) in Žilinský kraj, highlighting a striking summer deluge. On the other hand, the number of rainy days varies significantly throughout the year; March only experiences about 6 days of rainfall in Nitriansky kraj, contrasting sharply with May, which can have up to 18 days of rainy weather in Žilinský kraj. This trend illustrates the transitional nature of Slovakia's spring to summer, where moisture accumulation is essential for the lush landscapes that follow.

Precipitation Trends in Slovakia

The chart illustrates Slovakia's yearly temperature patterns, showing data aggregated from various locations across the region, highlighting seasonal variations and monthly temperature changes.
JanFebMarAprMayJunJulAugSepOctNovDec365446591091109710177766572
Data source: Slovakia precipitation data aggregated from multiple country locations, generated using Copernicus Climate Change Service information.
Choose your preferred precipitation unit

Slovakia Humidity

In Slovakia, humidity levels exhibit a notable fluctuation throughout the year, particularly in Košický kraj. The summer months bring a relatively lower humidity, with August recording a minimum of 59%, making it the most comfortable time for outdoor activities. In stark contrast, winter months see a significant increase in moisture, peaking at a maximum of 91% in December. This trend highlights the importance of seasonal adaptation, as residents and visitors alike experience the varying degrees of humidity that shape the climate and everyday life in this region.

Average Humidity in Slovakia

Slovakia's Average Monthly Humidity Levels: This chart highlights Slovakia's humidity fluctuations throughout the year, making it easy to compare seasonal trends. See how humidity varies month by month and understand Slovakia's climate patterns.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%84%76%70%70%67%63%67%84%90%91%
Data source: Humidity data for Slovakia generated using information from the Copernicus Climate Change Service.

Slovakia UV Index Trends

In Slovakia, the UV Index exhibits a notable consistency during the month of June, with both Bratislavský Kraj and Žilinský kraj reporting an average daily maximum UVI of 9. This high level of UV radiation underscores the importance of sun safety practices across these regions, especially as summer approaches and outdoor activities increase. Observing such trends allows residents and visitors to better prepare for the peak sun exposure periods, ensuring that effective protective measures are taken to safeguard against harmful UV rays.

Maximum UV Index Levels in Slovakia

The chart shows the monthly maximum UV Index (UVI) in Slovakia, 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Slovakia UV Index data aggregated from multiple regional locations, generated using Copernicus Climate Change Service information.

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.

Sunshine Duration in Slovakia

In Slovakia, sunshine duration varies significantly throughout the year and across different regions. In January, Trenčiansky kraj experiences a modest 138 hours of sunlight, while Nitriansky kraj sees a slightly brighter start to the year with 156 hours. As summer arrives in July, the sun shines most brilliantly, particularly in Žilinský kraj where residents bask in 420 hours of sunlight. However, Nitriansky kraj takes the lead with an impressive 431 hours, showcasing the vibrant differences in sunshine exposure across the country's diverse landscapes. This notable variation in sunlight not only influences local climates but also highlights the seasonal allure of Slovakia.

Monthly Sunshine Duration in Slovakia

The Slovakia sunshine duration chart shows the total hours of direct sunlight in Slovakia each month, excluding cloudy or obstructed periods, and compares the sunshine duration across different months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec151h204h297h332h374h415h425h395h324h261h194h156h
Data source: Slovakia sunshine duration data aggregated from multiple country locations, generated using Copernicus Climate Change Service information.

Chance of Sun in Slovakia

In Slovakia, the likelihood of sunny weather varies significantly throughout the year and across different regions. For instance, December in Žilinský kraj sees only a modest 14% chance of sunshine, suggesting that the winter months often bring cloud cover and colder conditions. In stark contrast, June in Nitriansky kraj boasts a much sunnier disposition, with a 58% likelihood of clear skies, making it an ideal time for outdoor activities and exploration. This clear shift from winter to summer highlights not only the changing seasons but also the vibrant climatic diversity that Slovakia offers throughout the year.

Percentage of Sunny Days in Slovakia

The chart illustrates the percentage of sunny days in Slovakia throughout the year. 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 Slovakia experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%39%47%36%37%52%42%36%48%49%31%25%
Data source: Slovakia chance of sun data, generated using information from the Copernicus Climate Change Service.

Average Daylight Hours Across the Slovakia

In Slovakia, particularly in the picturesque region of Žilinský kraj, the contrast between daylight hours across the seasons is striking. In December, the short winter days offer just 8 hours of sunlight, creating a cozy, introspective atmosphere as the year draws to a close. Conversely, by June, the days stretch to an impressive 16 hours, inviting outdoor adventures and lively gatherings under the bright sun. This significant shift not only influences the locals' daily routines but also highlights the rich seasonal diversity that Slovakia experiences throughout the year.

Average Monthly Daylight Hours in Slovakia

This chart shows the total daylight hours Slovakia receives each month, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 47m10h 10m11h 55m13h 42m15h 14m16h 1m15h 36m14h 14m12h 31m10h 45m9h 10m8h 20m
Data source: Slovakia daylight hours, calculated by summing the hours between sunrise and sunset for each day.

Climate Breakdown by Slovakia Region

Nestled in the heart of Slovakia, Banskobystrický kraj experiences a diverse climate that captivates year-round. Winters can be biting, with January temperatures dropping to as low as -32°C (-26°F), while summers bring warmth with July highs reaching 35°C (96°F). The region sees ample precipitation, especially in spring and early summer, with May and June averaging around 109 mm of rain. Humidity varies throughout the year, peaking in the winter months at 90%, creating a unique atmospheric character that's felt in every season. For a deeper dive into the nuances of this captivating climate, explore the full details at Banskobystrický kraj climate.

Bratislavský Kraj experiences a diverse climate, marked by cold winters and warm summers. January and February bring chilly temperatures, with averages hovering around freezing and nighttime lows often dipping below -10°C (14°F). As spring approaches, temperatures gradually rise, peaking in July and August when highs can reach up to 38°C (100°F). This region also sees a notable amount of precipitation, especially in late spring and early autumn, adding to the lush greenery of the landscapes. For a deeper dive into what to expect throughout the year, check out Bratislavský Kraj climate.

Located in the heart of Slovakia, Košický kraj experiences a diverse climate that transforms with each season. Winters can be quite chilly, with January temperatures plunging to as low as -30°C (-22°F), while summers bring warmth, peaking in July at around 20°C (68°F). Rainfall is fairly consistent throughout the year, with the lushest months being May and June, recording about 102 mm (4.0 in) of precipitation each. The region enjoys relatively high humidity in winter, hovering around 91%, which gradually decreases during the warmer months, making it a pleasant escape. For a detailed exploration of the area's climatic conditions, check out Košický kraj climate.

Nestled in the heart of Slovakia, Nitriansky kraj experiences a diverse climate that shifts dramatically throughout the year. Winters can be quite cold, with January temperatures dipping to a chilling -25°C (-13°F), while summers heat up to a sweltering 39°C (103°F) in August. Humidity levels vary, peaking in the colder months at nearly 90%, whereas summer offers slightly drier air around 62%. Rainfall is most abundant in May, with 90 mm (3.6 in) contributing to the region’s lush landscapes. For a more detailed look at the region’s climate patterns, check out Nitriansky kraj climate.

The climate in Prešovský kraj, Slovakia, showcases a remarkable contrast between seasons, with cold winters and warm summers. January temperatures can plunge as low as -31°C (-23°F), while July often sees peaks around 35°C (95°F). This region experiences significant precipitation, especially in late spring and summer, contributing to lush landscapes and vibrant flora. Humidity levels tend to be high during the winter months, creating a crisp chill, while summer air feels comfortably warm. For more detailed insights, explore the Prešovský kraj climate.

In Trenčiansky kraj, Slovakia, the climate showcases a stunning transformation throughout the year, with January temperatures dipping as low as -28°C (-18°F) and reaching an average of -2°C (29°F). As spring approaches, the mercury gradually rises, peaking in July and August with warm averages of 19°C (67°F) and 20°C (68°F), respectively, alongside maximums that can soar to 36°C (96°F). Precipitation is most abundant during the summer months, particularly in August with nearly 98 mm (3.9 in) of rainfall, while winter months often feature high humidity levels, rounding out a chilly 90% in January. Overall, this region's diverse climate offers a captivating backdrop for both outdoor adventures and cozy indoor retreats. For more detailed information, visit Trenčiansky kraj climate.

Trnava, Slovakia, experiences a diverse climate that shifts dramatically through the seasons. Winters can be quite chilly, with January temperatures dipping to a frigid -18°C (0°F), while summers are warm and inviting, seeing highs soar to 38°C (101°F) in August. The transition months of spring and autumn showcase moderate averages, making them ideal for exploration. Humidity levels fluctuate throughout the year, peaking at 90% in winter's depths before easing in the warmth of summer. For a more detailed look at its climate patterns, visit Trnava climate.

The climate in Žilinský kraj, Slovakia is characterized by substantial seasonal variations, with winters often featuring freezing temperatures that can plunge as low as -32°C (-26°F) in January, while summers showcase warmer averages, peaking at around 33°C (92°F) in July. Rainfall is most abundant during the summer months, particularly in August, where it can reach up to 130 mm (5.1 in), contributing to lush landscapes. Humidity levels are notably high in winter, hovering around 90%, but drop gradually as the year progresses, falling to about 64% in August. This diverse climate lends itself to a variety of outdoor adventures and scenic beauty throughout the year, making it a delightful destination. For more detailed insights, check out the Žilinský kraj climate.

Summary and Key Takeaways on the Climate of the Slovakia

The climate of Slovakia showcases a remarkable range of temperatures and precipitation patterns that reflect the country's diverse geography. From the biting cold of -32°C in January, recorded in Banskobystrický kraj, to scorching summer highs of 39°C in August in Nitriansky kraj, Slovakia experiences significant seasonal contrasts. Monthly precipitation varies notably, peaking at 130 mm in August in Žilinský kraj while dropping to a mere 33 mm in January in Nitriansky kraj. Humidity levels also tell a story of their own, with averages reaching a cozy 91% in December and dipping to 59% in the warmth of August, especially in Košický kraj. This blend of extreme temperatures and varied precipitation not only shapes Slovakia’s lush landscapes but also influences the lives of its people throughout the year.