Last updated: April 1, 2025
In Ostrava, Czech Republic, January brings a chilly embrace with temperatures ranging from a minimum of -18°C (0°F) to a maximum of 11°C (52°F), resulting in an average of 0°C (31°F). Throughout the month, residents can expect moderate precipitation, with 44 mm (1.7 in) of rain falling over approximately 12 days, contributing to the city's high humidity levels of around 90%. Despite the cold and damp, the winter landscape offers a unique charm that captures the essence of the season.
In Ostrava, Czech Republic, January marks the heart of winter, characterized by a challenging yet fascinating temperature range. The month kicks off with minimum temperatures dipping to -18°C (0°F), while daytime warmth struggles to breach an average of 0°C (31°F), peaking at 11°C (52°F). This chill is a harbinger of a gradual warming trend, as February sees a slight uptick in averages, hinting at the upcoming spring. The stark cold of January, with its freezing lows, sets the stage for a transformative transition into milder months, paving the way for a gradual ascent in temperatures as the year progresses. The shift from harsh winter to refreshing spring becomes increasingly pronounced, making this time a crucial turning point in Ostrava's climate narrative.
In January, Ostrava experiences an average precipitation of 44 mm (1.7 in), spread over approximately 12 days of the month. This sets the tone for the winter season, characterized by relatively lower rainfall compared to the spring and summer months. As the year progresses, precipitation gradually increases, peaking in May with a notable 101 mm (4.0 in) across more frequent rainy days. Interestingly, while January's precipitation is modest, it serves as a precursor to the wetter months that follow, especially August, which typically sees the highest accumulation at 112 mm (4.4 in). This trend highlights the shift from a drier winter into a lush and vibrant summer, showcasing Ostrava’s dynamic climate throughout the year.
In January, Ostrava experiences a notably high average humidity of 90%, reflecting the chilly winter air that dominates the season. This level of moisture begins to taper in February and continues its gradual decline into March, where humidity reaches 83%. As spring approaches, the air becomes increasingly drier, with humidity dropping to 76% in April and continuing to decrease until it reaches its lowest point of 64% in August. However, a noticeable trend occurs as the seasons shift again; by September and October, humidity levels rise once more, peaking at 91% by December. This cyclical pattern highlights the winter months as consistently moisture-rich, while the summer offers a brief respite with lower levels, effectively illustrating Ostrava's varied climate throughout the year.
In Ostrava, January welcomes a low UV Index of 2 with a burn time of up to 45 minutes, making sun exposure relatively safe for residents and visitors alike. This trend continues into February, but as winter fades and spring approaches, March sees a shift to a moderate UV Index of 4, where burn time decreases to 30 minutes. As the days grow longer and sunnier in April and May, the UV Index climbs significantly, reaching high levels of 6 and 7, respectively, with a more urgent burn time of 25 minutes. The summer months present the most intense sun exposure, with both June and July recording a very high UV Index of 8—a stark reminder to take precautions, as burn time plummets to just 15 minutes. As fall sets in, September and October show a gradual decline, stabilizing at moderate to high levels before the winter chill returns in November and December, lowering the UV risk once again. For more detailed insights, visit Ostrava UV Index.
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January in Ostrava, Czech Republic, greets residents with 133 hours of sunlight, a modest beginning to the year that sets the stage for brighter days ahead. As winter fades, the sun begins to shine more generously, with February seeing an increase to 194 hours. The trend continues into spring, culminating in a stunning 328 hours of sunshine by April. This remarkable rise keeps soaring through late spring and into summer, peaking at 429 hours in July, the sunniest month of the year. As summer transitions to autumn, the sunlight gradually tapers off, with September basking in 310 hours before dipping further to 191 hours in November. The cycle of sunshine in Ostrava beautifully mirrors the changing seasons, providing both a comforting routine and a captivating dance of light throughout the year.
In January, Ostrava, Czech Republic experiences a modest 20% chance of sunny weather, making it one of the cloudier months of the year. As winter progresses into February, the likelihood of sunshine cautiously rises to 30%, hinting at a gradual shift towards brighter days. However, the real transition occurs in March, where sunshine chances leap to 41%, signaling the arrival of early spring. This trend continues, peaking in June with a robust 51% chance of sun, before gradually tapering off again as the year advances, particularly in the chill of December when the sunny days dwindle back to just 18%. Overall, while January may not offer much sunshine, the data clearly illustrates an encouraging upward trajectory as winter gives way to spring.
In Ostrava, Czech Republic, the daylight duration experiences a significant transformation throughout the year, starting with just 8 hours in January. As winter fades, February brings a welcoming increase to 10 hours, signaling the initial signs of spring. The days continue to elongate dramatically, reaching 11 hours in March and 13 hours in April, as nature awakens and blossoms. May further delights residents with 15 hours of daylight, while the peak of summer in June offers a generous 16 hours, perfect for enjoying the outdoors. However, as the seasons shift, daylight gradually recedes, with July and August still providing ample light at 15 and 14 hours respectively. By the time autumn arrives, September sees a reduction to 12 hours, and the descent continues, hitting 10 hours in October and dwindling to 8 hours again by December. This annual pattern encapsulates the beautiful rhythm of light and darkness, embracing the cycle of the seasons in Ostrava.
In January, the wind in Ostrava, Czech Republic gently sweeps through at an average speed of 3.2 m/s (7 mph), setting a tranquil tone for the winter month. As the seasons progress into February, the breeze picks up slightly to 3.5 m/s (8 mph), hinting at the transition towards spring. Interestingly, the wind speed stabilizes back to 3.2 m/s in March and fluctuates lightly through the month of April at 3.4 m/s. A noticeable pattern emerges as May arrives, bringing a touch more vigor with an average of 3.6 m/s before the summer months take a quieter turn. From June to August, the winds soften significantly, dropping to a leisurely 2.3 m/s to 2.6 m/s (5-6 mph), ideal for sunny days and outdoor activities. However, as autumn approaches, the winds begin to regain strength, peaking at 3.8 m/s (9 mph) in October, before settling back to 3.2 m/s in the closing months of the year. This rhythmic dance of wind speeds reflects the dynamic climate of Ostrava, offering a unique charm to each season.
The weather in Ostrava changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Ostrava and find detailed weather information for every month.
January and February both showcase cold temperatures, but February tends to be slightly milder and wetter. In January, temperatures can dip as low as -18°C (0°F), with an average temperature of 0°C (31°F) and a maximum reaching 11°C (52°F). The month receives around 44 mm (1.7 in) of precipitation over 12 days, accompanied by high humidity levels at 90%. In contrast, February features a minimum of -18°C (0°F), but the average increases to 1°C (34°F) and can climb up to 17°C (63°F). Precipitation in February is also higher at 57 mm (2.2 in), maintaining a similar frequency of 12 wet days, and with humidity slightly lower at 87%. For a detailed look at February's weather, you can refer to Ostrava weather in February.
When comparing the weather in January and March, there are notable differences in temperature and overall conditions. January typically experiences its coldest temperatures, with an average of 0°C (31°F) and a minimum that can drop to -18°C (0°F). In contrast, March sees a significant warming trend, with average temperatures rising to 4°C (40°F) and highs reaching up to 20°C (69°F). Although both months receive similar amounts of precipitation, January's humidity is higher at 90%, compared to March's 83%. For more details on March weather specifics, you can check Ostrava weather in March.
January and April present quite contrasting weather conditions. In January, temperatures can drop as low as -18°C (0°F) with an average of around 0°C (31°F) and a maximum of 11°C (52°F). The month experiences a fair amount of precipitation, totaling 44 mm (1.7 in) over 12 days, along with high humidity levels at 90%. In contrast, April marks a significant warming trend, with minimum temperatures of -6°C (22°F), an average of 9°C (48°F), and maximums reaching up to 27°C (80°F). Though April has slightly higher precipitation at 60 mm (2.4 in), it occurs over fewer days (10 days) and features a more comfortable humidity level of 76%. For more detailed information on the weather in April, visit Ostrava weather in April.
In January, the weather in Ostrava is characterized by frigid temperatures, with a minimum of -18°C (0°F) and an average of 0°C (31°F), making it one of the coldest months of the year. Precipitation occurs on about 12 days, totaling 44 mm (1.7 in), and the humidity remains high at around 90%, contributing to a chilly atmosphere.
In contrast, May brings a significant warming trend, with temperatures ranging from a minimum of -2°C (29°F) to a pleasant average of 13°C (56°F) and reaching a maximum of 29°C (84°F). Although May experiences more precipitation at 101 mm (4.0 in) over 16 rainy days, the humidity drops to a more comfortable 70%. For more details on the weather in May, check Ostrava weather in May.
In January, the weather in Ostrava is characterized by cold temperatures, with a minimum of -18°C (0°F) and an average around 0°C (31°F). The month experiences around 44 mm (1.7 in) of precipitation over approximately 12 days, accompanied by high humidity levels at 90%. In contrast, June brings warmer conditions, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 32°C (90°F) and an average of 19°C (66°F). Precipitation increases to 86 mm (3.4 in) over 14 days, but humidity drops significantly to 71%. For more detailed information, you can check Ostrava weather in June.
January and July present a stark contrast in weather conditions. In January, temperatures can plummet to a minimum of -18°C (0°F), with an average of around 0°C (31°F) and a maximum of 11°C (52°F). The month experiences high humidity at 90% and sees approximately 44 mm (1.7 in) of precipitation over 12 days. In contrast, July boasts a much warmer climate, with temperatures ranging from a minimum of 7°C (44°F) to a sweltering maximum of 35°C (95°F) and an average of 19°C (67°F). While July has slightly more precipitation at 92 mm (3.6 in) over 14 days, the humidity drops to 67%. For more details about July weather, visit Ostrava weather in July.
January and August present striking contrasts in weather conditions. In January, temperatures can dip as low as -18°C (0°F), with an average of 0°C (31°F) and highs reaching 11°C (52°F). The month is characterized by high humidity at 90% and precipitation occurring on about 12 days, totaling 44 mm (1.7 in). In stark contrast, August enjoys much milder conditions, with a minimum temperature of 7°C (45°F), an average of 20°C (68°F), and maximums soaring to 33°C (92°F). Although August sees more total precipitation at 112 mm (4.4 in) over about 14 days, the humidity is significantly lower at 64%. For more details about August weather, visit Ostrava weather in August.
In January, the weather is characterized by chilly temperatures, with a minimum of -18°C (0°F) and an average of 0°C (31°F), while it can reach a maximum of 11°C (52°F). The month experiences high humidity at 90% and receives about 44 mm (1.7 in) of precipitation over 12 days. In contrast, September offers a much milder climate, with minimum temperatures around 1°C (34°F) and an average of 15°C (59°F), peaking at a warm 30°C (87°F). This month also sees increased precipitation at 103 mm (4.1 in) spread over 13 days, but the humidity drops to a more comfortable 67%. For more information, visit Ostrava weather in September.
In January, the weather in Ostrava is characterized by frigid temperatures, with a minimum of -18°C (0°F) and an average of 0°C (31°F), making it one of the coldest months of the year. Precipitation occurs over approximately 12 days, totaling around 44 mm (1.7 in), and the humidity remains high at 90%. In contrast, October offers a much milder climate, with temperatures ranging from a minimum of -2°C (28°F) to a pleasant maximum of 24°C (76°F), averaging 10°C (51°F). Although October experiences slightly more precipitation at 84 mm (3.3 in) over 11 days, the humidity is lower at 83%. For more details on the weather in October, you can visit Ostrava weather in October.
January and November present starkly contrasting weather conditions. In January, temperatures plunge to a minimum of -18°C (0°F), with an average of 0°C (31°F) and a maximum of 11°C (52°F). This cold month also experiences about 44 mm (1.7 in) of precipitation over 12 days, all while maintaining a high humidity level of 90%. In comparison, November offers a milder climate, where temperatures range from a minimum of -8°C (17°F) to a comfortable average of 6°C (43°F) and can peak at 19°C (66°F). With slightly more precipitation at 49 mm (1.9 in) over just 9 days, the humidity remains consistent at 90%. For more details, you can visit Ostrava weather in November.
In January, the weather in Ostrava tends to be colder than in December, with average temperatures hovering around 0°C (31°F), compared to December's average of 1°C (35°F). January experiences a wider range of temperatures, dipping as low as -18°C (0°F) and reaching a maximum of 11°C (52°F), while December has a minimum temperature of -11°C (12°F) and a maximum of 14°C (58°F). Precipitation is lighter in January, with 44 mm (1.7 in) over 12 days, compared to December's 68 mm (2.7 in) across 14 days. Humidity levels remain similar, with January at 90% and December slightly higher at 91%. For more details, you can check Ostrava weather in December.
As January settles in, Ostrava embraces the heart of winter with its chilly temperatures dropping to a brisk average of around 0°C. Unlike the milder months that precede it, this month showcases the extremes, with lows plunging to a frigid -18°C, providing a stark contrast to the more temperate conditions experienced in late autumn and early spring. The frequent precipitation, falling on approximately 12 days, coupled with a high humidity of 90%, envelops the city in a damp coldness that is characteristic of the season. This ambiance draws those seeking the enchanting beauty of winter, a time when Ostrava's landscape transforms under a blanket of snow. To learn more about how winter shapes this vibrant city, you can visit Ostrava Climate.