April Weather in Olsztyn, Poland

Last updated: August 27, 2025

April in Olsztyn, Poland ushers in a vibrant transition from winter to spring, characterized by dynamic temperatures ranging from a maximum of 27°C (81°F) to a chilly minimum of -7°C (20°F). The average temperature settles at a refreshing 9°C (48°F), inviting signs of life and rejuvenation. However, expect to encounter precipitation, with approximately 58 mm (2.3 in) over 10 rainy days, contributing to the lush landscapes typical of this season. With humidity levels at a notable 79%, April provides a moist environment, perfect for exploring the natural beauty and cultural richness of Olsztyn as it blossoms into spring.

April Temperature in Olsztyn

In April, Olsztyn experiences a significant warming trend as it transitions fully into spring. With temperatures ranging from a chilly -7°C (20°F) at night to a delightful 27°C (81°F) during the day, the average temperature rises to a comfortable 9°C (48°F). This month marks a noticeable shift from the cold grip of winter, showcasing a dramatic increase compared to the previous months. As snow and frost give way to budding flora, residents and visitors alike can savor the pleasant weather that makes outdoor activities particularly inviting. The warming days of April signal not only the end of frigid nights but also the vibrant return of life to this picturesque Polish city.

April Weather in Olsztyn: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Olsztyn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olsztyn, April 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).
JanFebMarAprMayJunJulAugSepOctNovDec303439485667676859514235
Data source: Temperature data for Olsztyn 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.

April Precipitation in Olsztyn

April in Olsztyn, Poland, brings a notable uptick in precipitation, with 58 mm (or 2.3 in) of rain falling over 10 days. This increase marks a shift from the milder spring months of January through March, where average rainfall hovered around 40 to 50 mm. The arrival of April’s showers is a precursor to the wetter months ahead, as May typically sees rainfall climb further to 83 mm. With April serving as a bridge between the initial awakening of spring and the vibrant growth of late spring, the consistent rainfall helps nourish the blossoming landscape, making it a vital month for both nature and agriculture in the region.

April Precipitation Trends in Olsztyn

The chart displays monthly precipitation patterns in Olsztyn, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Olsztyn, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec405042588376839187654056
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Olsztyn

As we transition into April, Olsztyn experiences a notable shift in humidity, dropping to 79%—a refreshing change from the higher levels seen in the winter months. This decline continues the trend of gradually decreasing humidity that starts in January, when levels peak at 90%. By April, the air feels noticeably drier, paving the way for the warmer months ahead. The subsequent months, particularly May with its 65% humidity, hint at a more arid climate that will dominate the summer. This progression from the chilled, dampness of winter to a more moderate spring atmosphere reflects Olsztyn's seasonal transition, inviting residents to enjoy the blooming landscapes.

April Average Humidity in Olsztyn

This chart illustrates the average monthly humidity levels in Olsztyn, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Olsztyn is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%79%65%66%67%67%72%83%90%92%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Olsztyn

As we transition into April, Olsztyn experiences a notable shift in the UV Index, which rises to 5, indicating a moderate level of sun exposure. This marks an increase from March's UV Index of 4, reflecting the approaching warmth of spring. With a burn time of just 30 minutes, it's essential for residents and visitors alike to take precautions when enjoying outdoor activities. While the UV levels become more significant than in the winter months, they remain manageable compared to the higher levels seen in late spring and summer. Be sure to stay informed and protected, as UV exposure is set to rise in the coming months. For more information, visit Olsztyn UV Index.

Maximum UV Index Levels in Olsztyn for April

The chart shows the monthly maximum UV Index (UVI) for Olsztyn in April, 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 April, the maximum UV index in Olsztyn typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578876321
Data source: Olsztyn April 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.

April Sunshine in Olsztyn

As the months progress in Olsztyn, Poland, the arrival of April ushers in a significant increase in sunshine hours, totaling an impressive 318 hours. This marks a noticeable shift from the earlier months, with sunshine gradually becoming more abundant since January's modest 122 hours. Following the dreariness of winter, March brings a boost with 270 hours, hinting at spring's promise. Yet, it's April that truly embraces the sun, paving the way for even brighter days ahead, as seen in May with 362 hours. This upward trend continues through the summer months, peaking in July with 415 hours, highlighting Olsztyn's transition into a sun-kissed paradise, ultimately inviting residents and visitors alike to bask in the warmth of longer, sunnier days.

Monthly Sunshine Duration in Olsztyn: April Highlighted

The April sunshine duration represents the total number of hours Olsztyn experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec122h188h270h318h362h405h415h379h297h251h188h132h
Data source: Olsztyn April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Olsztyn During April

April in Olsztyn, Poland marks a noteworthy transition in weather patterns, with a 36% chance of sunny days—a modest increase from March's 35%. As the chill of winter recedes, residents can look forward to brighter skies, a trend that continues into May when the likelihood of sunshine rises slightly to 37%. This gradual ascent toward more favorable weather highlights the onset of spring, making April an inviting time for outdoor activities as daylight expands and temperatures begin to climb. However, while April's sunshine probability is still considerably lower than the peak 51% seen in June, it signals a clear shift toward a more cheerful climate, enhancing the anticipation for the upcoming warmer months.

Percentage of Sunny Days in April in Olsztyn

The chart illustrates the percentage of sunny days in Olsztyn throughout the year, with April 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 Olsztyn experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec18%28%35%36%37%51%36%29%38%48%26%16%
Data source: Olsztyn April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Olsztyn in April

As spring unfolds in Olsztyn, Poland, April brings a delightful increase in daylight, boasting 13 hours of sunshine—an invigorating boost from the 11 hours experienced in March. This upward trend in daylight hours signifies a clear transition from the winter months, where January and February offered only 8 and 10 hours, respectively. As warmer days approach, May will offer even more light, reaching 15 hours. This gradual elongation of daylight not only enhances outdoor activities but also uplifts the spirit, making April a cherished month for both residents and visitors alike. The rhythm of nature is unmistakable, with each month unveiling a little more sunlight and encouraging a vibrant, lively atmosphere in this charming Polish city.

Average Daylight Hours in Olsztyn for April

The chart illustrates the variation in daylight duration in Olsztyn throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 29m10h 1m11h 54m13h 51m15h 32m16h 25m15h 57m14h 26m12h 34m10h 39m8h 55m8h
Data source: Olsztyn daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Olsztyn

In April, Olsztyn experiences a gentle embrace of spring, as the average wind speed rises to 3.9 m/s (about 9 mph), slightly above the previous month's winds. This month serves as a transition from the brisk breezes of winter, reflected in the steady average speeds from January to March, hovering between 3.7 m/s and 4.3 m/s. As the city shakes off the chill, wind speeds begin to pick up gradually, indicating the vibrancy of the changing season. Following April, May sees a modest increase to 4.1 m/s, while the summer months bring a shift to calmer winds, with June and July both dropping to 2.8 m/s. This trend highlights April as a pivotal point in Olsztyn’s wind patterns, where the refreshing gusts of spring signal a move towards the softer breezes of summer.

Average April Wind Speed in Olsztyn

The chart displays monthly wind speed patterns in Olsztyn, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.84.33.73.9 m/s4.12.82.83.23.44.24.14.1
Data source: Olsztyn April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Olsztyn Compares to Other Months

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

April and January present contrasting weather patterns. In April, temperatures range from a minimum of -7°C (20°F) to a pleasant maximum of 27°C (81°F), with an average of 9°C (48°F). The month sees about 58 mm (2.3 in) of precipitation over approximately 10 days, accompanied by a humidity level of 79%. In comparison, January experiences much colder conditions, with temperatures dipping as low as -26°C (-15°F) and peaking at just 11°C (52°F), averaging -1°C (31°F). Precipitation in January is slightly lower at 40 mm (1.6 in) over the same number of rainy days, coupled with higher humidity at 90%. For a detailed look at the frigid temperatures in January, visit Olsztyn weather in January.

April's weather shows a significant warming trend compared to February, with average temperatures rising from February's chilly 1°C (34°F) to a more moderate 9°C (48°F), and maximum temperatures climbing from 18°C (65°F) to a pleasant 27°C (81°F). While both months experience a fair amount of precipitation—58 mm (2.3 in) in April compared to 50 mm (2.0 in) in February—the number of rainy days is relatively similar, with April seeing rain on 10 days versus 11 days in February. Additionally, February carries a higher humidity at 88% compared to April's 79%, which can make the cold feel even more biting. For more detailed information on February's weather, visit Olsztyn weather in February.

April weather shows a noticeable improvement compared to March, with average temperatures rising from 4°C (39°F) in March to a more comfortable 9°C (48°F) in April. The minimum temperature in April, while still chilly at -7°C (20°F), is significantly milder than the harsh -15°C (5°F) recorded in March. Moreover, April experiences less precipitation, with 58 mm (2.3 in) falling over 10 days, compared to 42 mm (1.7 in) across 11 days in March. However, humidity remains relatively high in both months, at 79% in April and 86% in March. For more details on March weather, visit Olsztyn weather in March.

April and May present a notable contrast in weather patterns. In April, temperatures range from a frigid minimum of -7°C (20°F) to a pleasant maximum of 27°C (81°F), with an average temperature of 9°C (48°F). The month experiences 58 mm (2.3 in) of precipitation over 10 days, coupled with a higher humidity level of 79%.

In contrast, May sees a more mild temperature range, with a minimum of -2°C (29°F), an average of 14°C (57°F), and a maximum reaching 30°C (85°F). Precipitation increases to 83 mm (3.3 in) spread across 15 days, but humidity decreases significantly to 65%. For more detailed insights and trends on May weather, you can check Olsztyn weather in May.

April and June present distinct weather patterns, highlighting the transition from spring to early summer. In April, temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 27°C (81°F), with an average temperature of 9°C (48°F). This month experiences a relatively high humidity level of 79% and sees around 58 mm (2.3 inches) of precipitation over approximately 10 days. In contrast, June boasts a significantly warmer climate, with temperatures ranging from a minimum of 5°C (42°F) to a scorching maximum of 35°C (95°F), and an average around 19°C (67°F). Although June has slightly more precipitation at 76 mm (3.0 inches) over 12 days, the humidity drops to 66%, making it feel less muggy. For detailed weather information, you can check Olsztyn weather in June.

April and July present contrasting weather profiles, highlighting the transition from spring to summer. April experiences cooler temperatures, with a minimum reaching -7°C (20°F) and an average of 9°C (48°F), while July enjoys warmer conditions, marked by a minimum of 8°C (46°F) and an average of 20°C (68°F). Precipitation is relatively frequent in both months, with April receiving 58 mm (2.3 in) over 10 days, compared to July’s 83 mm (3.3 in) across 13 days. Humidity is generally higher in April at 79%, while July sees a decline to 67%, making the air feel more comfortable despite the heat. For a closer look at July conditions, check out Olsztyn weather in July.

April and August present quite a contrast in weather conditions. In April, temperatures range from a chilly minimum of -7°C (20°F) to a pleasant maximum of 27°C (81°F), with an average of 9°C (48°F). The month sees about 58 mm (2.3 in) of precipitation over approximately 10 days and a higher humidity level of 79%. In comparison, August boasts warmer temperatures, with a minimum of 7°C (44°F) and a maximum reaching 35°C (94°F), averaging around 20°C (68°F). Precipitation increases to 91 mm (3.6 in) spread over roughly 12 days, but humidity drops to 67%, creating a more comfortable atmosphere. For more detailed information, you can check Olsztyn weather in August.

April and September present distinct weather patterns, characterized by differing temperatures and levels of precipitation. In April, temperatures range from a chilly minimum of -7°C (20°F) to a mild maximum of 27°C (81°F), with an average of 9°C (48°F). The month experiences a total of 58 mm (2.3 in) of precipitation over about 10 days, accompanied by relatively high humidity at 79%. In contrast, September showcases warmer temperatures, with a minimum of 1°C (34°F), an average of 15°C (59°F), and a maximum peaking at 32°C (90°F). This month tends to be wetter, with precipitation totaling 87 mm (3.4 in) over 11 days, although the humidity is slightly lower at 72%. For more detailed information on September weather, you can visit Olsztyn weather in September.

April and October present distinct weather patterns, reflecting their transitional nature in the calendar year. In April, temperatures can range from a chilling -7°C (20°F) at night to a warmer 27°C (81°F) during the day, averaging around 9°C (48°F). This month experiences about 58 mm (2.3 in) of precipitation over approximately 10 days, with humidity levels hovering around 79%.

In contrast, October shows milder temperatures, with a minimum of -3°C (27°F) and a maximum of 24°C (76°F), averaging 11°C (51°F). While slightly wetter, with 65 mm (2.6 in) of rainfall spread over 11 days, October has a higher humidity level of 83%.

For a more detailed look at October weather in Olsztyn, you can visit Olsztyn weather in October.

April and November in Olsztyn present distinct weather patterns. In April, temperatures range from a chilly minimum of -7°C (20°F) to a warm maximum of 27°C (81°F), with an average of 9°C (48°F). The month receives about 58 mm (2.3 in) of precipitation over approximately 10 days, accompanied by a humidity level of 79%. In contrast, November sees cooler conditions, with temperatures ranging from -7°C (19°F) to a maximum of 19°C (67°F) and an average of 6°C (42°F). The month records less precipitation at 40 mm (1.6 in) over 9 days, although humidity rises slightly to 90%. For a closer look at November's climate, check out Olsztyn weather in November.

April and December feature contrasting weather patterns, with April offering a more moderate climate than the cold depths of December. In April, temperatures range from a brisk -7°C (20°F) to a pleasant 27°C (81°F), averaging around 9°C (48°F). The month experiences some precipitation, totaling 58 mm (2.3 in) over approximately 10 days, with a humidity level of 79%. In contrast, December showcases much colder conditions, with temperatures dipping as low as -14°C (7°F) and averaging just 1°C (35°F). The month sees slightly less precipitation, at 56 mm (2.2 in), but over a greater number of days—13 in total—and a higher humidity level of 92%. For more detailed insights on December weather specifics, you can visit Olsztyn weather in December.

Compare Olsztyn's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Olsztyn

As April unfolds in Olsztyn, it marks a refreshing transition from the cold embrace of winter to the budding warmth of spring. Temperatures gradually rise, offering a delightful contrast with a maximum of 27°C that hints at summer's approach, while nights still chill with an occasional dip to -7°C. This month also sees a significant increase in precipitation, with rain gracing the landscape on about 10 days, creating a lush, vibrant atmosphere filled with flowers and greenery. The humidity level swells to 79%, adding to the freshness in the air. Overall, April stands as a month of exciting change, making it an ideal time to witness Olsztyn's natural beauty. For a deeper look into the weather patterns, check out Olsztyn Climate.