Last updated: April 17, 2025
The climate of Overijssel, Netherlands, classified under the Koppen-Geiger system as Cfb, is characterized by a temperate maritime climate with no dry season. Throughout the year, temperatures exhibit a notable range: the coldest month, February, can plummet to a minimum of -15°C (5°F), while the warmest month, July, can soar to an impressive 40°C (105°F). The annual average temperature hovers around 11°C (52°F), illustrating the region's capacity for both chilly winters and warm summers, making Overijssel's climate distinct and dynamic.
Overijssel, Netherlands, experiences distinct seasonal temperature patterns that reflect the region's temperate maritime climate. Winter months, particularly January and February, reveal chill temperatures, with February reaching a minimum of -15°C (5°F), while the averages linger around 4°C (39°F). As spring approaches, temperatures gradually rise, with March showcasing a remarkable increase in maximum temperatures, peaking at 22°C (71°F), signaling the onset of the warmer season. By May, warm conditions become more prevalent, as average temperatures climb to 13°C (56°F) and maximums reach 32°C (90°F). The peak summer, primarily in July, witnesses extreme warmth with maximums soaring to 40°C (105°F); however, temperatures modestly decline through August and September. Autumn ushers in cooler weather, with October and November reflecting average temperatures between 7°C (45°F) and 12°C (54°F). Overall, the climate of Overijssel evolves from harsh winters to warm summers, characterizing a vibrant seasonal cycle.
Kampen and Zwolle share similar temperature ranges, with minimums of -13°C (9°F) in February and maximums of 38°C (101°F) in July, as detailed in their respective climate links: monthly temperatures in Kampen and monthly temperatures in Zwolle. In nearby Giethoorn, the February minimum is slightly milder at -12°C (11°F), while July sees a maximum of 37°C (98°F), as outlined in this link: monthly temperatures in Giethoorn.
Precipitation in Overijssel, Netherlands, exhibits a distinct seasonal variation, with the highest levels recorded during the late summer and fall months. July and August are particularly wet, averaging 82 mm (3.2 in) and 85 mm (3.3 in) respectively, which is complemented by increased rainfall frequency, with 15 rainy days in August alone. The autumn months follow suit, with October receiving 84 mm (3.3 in) and December peaking at 86 mm (3.4 in), depicting a trend where precipitation tends to increase as the year closes.
In contrast, the spring months witness a marked reduction in precipitation, particularly in April, which sees a low of just 38 mm (1.5 in), despite a reasonable number of rainy days. The early winter months of January and February provide moderate rainfall, averaging 63 mm (2.5 in) and 71 mm (2.8 in), presenting a relatively stable precipitation pattern that transitions into the wetter late summer and fall seasons. Overall, Overijssel's climate demonstrates significant precipitation fluctuations, reflecting the dynamic characteristics inherent to its temperate maritime climate.
In Overijssel, Netherlands, humidity levels reveal intriguing seasonal patterns. During the winter months, from January to February, residents experience a high average humidity of 88%, creating a damp chill in the air. As spring arrives in March and April, humidity slightly decreases to around 86% and 84%, respectively, signaling a gradual transition. The warm summer months of June through August bring a more comfortable humidity level of 75%, offering a reprieve from the dampness. However, as autumn sets in, humidity levels rebound, reaching 83% in September and climbing back to 86% by October. The year wraps up with November and December seeing humidity levels return to a high of 87% and 86%, reminding us that the wet essence of Overijssel is ever-present, cycling through the seasons with a rhythm of comfort and chill.
Sunshine duration in Overijssel, Netherlands, reflects a clear seasonal pattern characterized by a steady increase from winter to summer. At the start of the year, January offers a mere 103 hours of sunshine, which represents the least light during the year. However, as February transitions to March, sunlight hours rise significantly, reaching 268 hours in March, and by April, this further escalates to 346 hours. This upward trend continues into May, peaking at 399 hours, indicating the onset of bright spring weather that prepares the region for the lengthy sunny days of summer.
Summer months are marked by a stellar performance in sunshine hours, with July achieving the highest total at 403 hours. August follows closely, contributing 385 hours, before beginning a gradual decline as autumn approaches. By September, sunshine hours drop to 316, and further decrease through October and November, with only 187 hours recorded in November. The data illustrates how Overijssel transitions from limited winter sunlight to an abundance of summer brightness, followed by a notable descent as the year concludes, reflecting the region's dynamic climatic shifts throughout the seasons.
The UV Index in Overijssel, Netherlands, exhibits distinct seasonal variations, reflecting changes in sun intensity throughout the year. During the winter months, both January and December show a low UV Index of 1, indicating minimal solar radiation exposure, with a burn time of 45 minutes. As the year progresses into early spring, ultraviolet radiation gradually increases, with February climbing to a UV Index of 2 and March reaching 4, transitioning to a moderate exposure category. By April, the index further rises to 5, emphasizing the need for caution as outdoor activities increase with the lengthening days.
The summer months present a more significant shift in UV Index values, peaking at 8 during June and July, categorized as very high, with a burn time of just 15 minutes. This highlights the importance of sun protection measures during peak hours, particularly for prolonged outdoor exposure. As August arrives, the UV Index drops slightly to 7, indicating high exposure. However, as autumn sets in, the UV levels begin to recede, with September falling back to a moderate index of 5, and further declining through October and November to 3 and 2, respectively. The pattern underscores the seasonal dynamics of UV exposure in Overijssel, reinforcing the need for awareness and protective measures during the sunnier months.
UV Risk Categories
Daylight duration in Overijssel, Netherlands, reveals a clear progression throughout the year, characterized by longer days in the summer and shorter days in the winter. In January, the days are relatively short, with only 8 hours of daylight, and this small increment continues into February, where daylight extends to 9 hours. As spring approaches, the increase becomes more pronounced; by March, daylight reaches 11 hours, and further extends to 13 hours in April, setting the stage for the brighter months ahead.
The summer months of June and July experience the longest daylight durations, each boasting 16 hours of light, providing residents with ample time to enjoy the outdoors. Following this peak, daylight begins its gradual decline, dropping to 14 hours in August and then tapering to 12 hours in September. As autumn progresses, the decrease continues with October at 10 hours, and ultimately descending to 8 hours in November and just 7 hours in December. This annual cycle of daylight underscores Overijssel's seasonal changes, shaping both daily life and natural ecosystems in the region.
Deventer, Netherlands, experiences a diverse climate characterized by cold winters and warm summers. January and February see temperatures ranging from -15°C to 18°C, with significant snowfall and average precipitation of around 71 mm. The warmer months from May to August can reach maximum temperatures of up to 39°C, accompanied by higher rainfall, especially in July and August, which average about 80-84 mm. Sunshine hours peak in summer, particularly in July with 402 hours, while winter months see significantly less. For more details, visit Deventer climate.
Giethoorn, Netherlands experiences a temperate maritime climate characterized by chilly winters and mild summers. January marks the coldest month with temperatures plummeting to a minimum of -7°C (19°F), while July is the warmest, reaching up to 37°C (98°F). The region receives substantial rainfall, particularly in July and August, with monthly averages around 90 mm (3.6 in). Sunshine duration peaks during the summer months, providing over 400 hours in June and July, making it an ideal time for outdoor activities. For more detailed information, visit Giethoorn climate.
Hellendoorn, Netherlands experiences a temperate maritime climate with distinct seasons. Winter temperatures can drop to a minimum of -14°C (7°F) in February, while summer months see highs reaching up to 40°C (103°F) in July. Precipitation varies throughout the year, peaking in August with 86 mm (3.4 in) and generally distributed across the months. Sunshine duration is highest in July, with 402 hours, providing relatively bright summers compared to the darker winter months. For detailed information, visit Hellendoorn climate.
Kampen, Netherlands experiences a temperate maritime climate with distinct seasonal variations. Winters can be chilly, with January temperatures averaging around 4°C (39°F) and lows dipping to -8°C (18°F). Summers are warmer, particularly in July and August, where highs can reach up to 38°C (101°F) and average temperatures hover around 18°C (65°F). Precipitation is fairly consistent throughout the year, peaking in the summer months, while sunshine hours are abundant in late spring and summer. For more detailed climate information, visit Kampen climate.
The climate in Ootmarsum, Netherlands, features a wide range of temperatures throughout the year, with January averaging 4°C (39°F) and peaks of 40°C (104°F) in July. Precipitation varies, with the wettest month being October at 83 mm (3.3 in), while April tends to be drier at 36 mm (1.4 in). Sunshine hours reach their maximum during the summer months, hitting 395 hours in July, but drop considerably in winter to just 100 hours in January. Overall, Ootmarsum experiences a temperate climate, suitable for outdoor activities from spring through fall. For more detailed information, visit Ootmarsum climate.
Zwolle, Netherlands experiences a temperate maritime climate with significant seasonal variations. Winter temperatures can drop to a minimum of -13°C (9°F) in February, while summers can soar to a maximum of 38°C (101°F) in July. Precipitation is relatively evenly distributed throughout the year, peaking in late summer, with July and August averaging around 90 mm (3.5 in) each. Sunshine hours are most abundant during the summer months, with July receiving up to 412 hours of sun, while January sees only 108 hours. For more detailed information, visit Zwolle climate.
In conclusion, the climate of Overijssel, Netherlands, is marked by distinct seasonal patterns that shape its temperature, precipitation, sunshine, UV index, and daylight duration. With chilly winters giving way to warm summers and variable rainfall throughout the year, these climatic factors contribute to the region's ecological diversity and influence the lifestyle of its residents. The gradual increase in sunshine and daylight hours during the spring and summer months underscores the importance of sun protection, particularly during peak UV exposure periods. Understanding these climatic dynamics not only enhances awareness of local environmental conditions but also aids in fostering sustainable practices and outdoor enjoyment throughout the seasons.