Last updated: January 18, 2025
Gotland, Sweden, experiences a temperate maritime climate, classified as Cfb under the Köppen-Geiger system. This climate type is characterized by mild summers and cool winters. Average temperatures hover around 9°C (48°F), with seasonal extremes ranging from a chilly minimum of -14°C (8°F) in February to a warm maximum of 31°C (88°F) in July. The unique climatic conditions foster a distinctive environment, shaping the island's vibrant ecosystems and influencing its cultural landscape.
The temperature patterns in Gotland, Sweden, reveal distinct seasonal trends that characterize its temperate maritime climate. Winters are chilly, with January and February registering minimum temperatures around -12°C to -14°C (11°F to 8°F) and average highs seldom exceeding 12°C (54°F). As spring approaches in March and April, temperatures gradually rise, marked by a notable increase in maximum values peaking at 23°C (75°F) by late April. The transition to summer sees June and July temperatures soar to an average of 18°C (65°F), with maximums reaching 31°C (88°F). Early autumn in September maintains a warmth similar to summer, showcasing highs of 28°C (82°F), but temperatures quickly decline as October ushers in cooler weather with averages dropping to 10°C (50°F). By the time winter returns in December, Gotland experiences its coldest spells again, illustrating a clear and pronounced seasonal cycle.
Visby experiences a significant temperature range throughout the year, with a minimum of -9°C (15°F) recorded in March and a maximum of 28°C (83°F) reached in August. This variation highlights the distinct seasonal changes that characterize the climate of this picturesque location. For more detailed information, you can visit the provided link: monthly temperatures in Visby.
Precipitation in Gotland, Sweden, exhibits notable variability throughout the year, with the highest levels recorded during the autumn months. January and February see relatively moderate rainfall, measuring 46 mm (1.8 in) and 42 mm (1.6 in), respectively, over about 10 to 11 days of rain. As spring arrives, precipitation decreases significantly in April to 21 mm (0.8 in), signaling drier conditions, while the intermittent rain in May and June contributes 33 mm (1.3 in) and 38 mm (1.5 in). The summer months of July and August see an uptick in precipitation levels, with 69 mm (2.7 in) and 62 mm (2.4 in) of rainfall, respectively, often resulting from occasional summer thunderstorms.
As autumn sets in, precipitation levels peak, especially in October, which records the highest monthly total of 80 mm (3.2 in) over 14 days of rain. This trend continues into November and December, with 63 mm (2.5 in) and 61 mm (2.4 in) observed, maintaining high frequency of rainy days. Throughout the year, Gotland's precipitation patterns highlight a shift from drier spring months to a wetter autumn season, reflecting the island’s maritime climate influences and contributing to its lush landscapes.
In Gotland, Sweden, sunshine duration exhibits a clear seasonal pattern, characterized by a steady increase from the depths of winter to the heights of summer. January starts with a modest 86 hours of sunlight, gradually rising to 175 hours in February. This upward trend accelerates in March, when sunshine hours reach 258 hours, marking a significant step towards the longer days of spring. By April, the island basks in 364 hours of sunlight, and the brightening continues through May, culminating in 447 hours as the days lengthen and the natural landscape bursts with vibrancy.
The peak sunshine period occurs during the summer months of June and July, both registering at 470 hours of glorious daylight, which provides ample opportunity for outdoor activities and enjoyment of the stunning coastal scenery. As summer transitions into autumn, however, sunshine begins to wane, with August still providing a healthy 417 hours, yet September dips to 307 hours. This downward trend continues into the final months of the year, with October bringing 234 hours, and the sunlight dwindling to just 100 hours in December, illustrating the notable contrast between the bright summer months and the subdued, darker winter days. Overall, Gotland's sunshine duration eloquently reflects the island's seasonal shifts and the impact of latitude on sunlight availability.
The UV Index in Gotland, Sweden, displays a clear seasonal variation, which is crucial for understanding sun exposure and the associated risks of skin damage. During the winter months, particularly in January and February, the UV Index remains low at 1 to 2, indicating minimal risk and a burn time of 45 minutes. As spring approaches in March, the index rises to 3, transitioning to a moderate exposure category, which signals the importance of sun protection as outdoor activities begin to increase. This upward trend continues into April, with a UV Index of 5, highlighting the growing intensity of the sun.
The summer months present the highest UV Index levels, peaking at 7 in June and July, categorized as high, which reduces the safe burn time to 25 minutes. This period underscores the need for effective sun protection as UV radiation can pose significant health risks. Even as summer wanes in August with a UV Index of 6, the importance of taking precautions remains, particularly for those spending extended time outdoors. In contrast, the fall and winter months see a return to low UV Index levels between 1 to 4, allowing for greater relaxation regarding sun exposure, but still necessitating awareness during peak daylight hours.
UV Risk Categories
Daylight duration in Gotland, Sweden, reveals a striking seasonal rhythm, beginning with the short days of winter. In January, residents experience only 7 hours of daylight, which gradually lengthens to 9 hours in February. As spring unfolds, March sees a notable increase to 11 hours, paving the way for the longer and brighter days ahead. By April, daylight extends to 14 hours, and May ushers in even more light with 16 hours, showcasing nature's vibrant return as the island awakens from its winter slumber.
The peak of daylight occurs during the summer months of June and July, where Gotland enjoys 17 hours of sunlight, creating ideal conditions for outdoor activities and exploration. As summer draws to a close in August, daylight begins to wane slightly to 15 hours, followed by a further decrease in September to 12 hours. The transition into autumn continues with October offering 10 hours, while the days grow shorter again, culminating in just 6 hours of daylight by December. This annual cycle of daylight duration not only influences the island's climate but also shapes the lifestyles and activities of its residents throughout the year.
Visby, Sweden experiences a varied climate throughout the year, with winter temperatures ranging from -9°C (15°F) in February to a milder average of 3°C (38°F) in December. The summer months peak with average temperatures of around 18°C (65°F) in July and August, making it the warmest period. Precipitation is higher during the summer months, particularly in July (67 mm), while the winter months see less rain, with January receiving 46 mm. Sunshine is abundant in late spring and summer, peaking at 471 hours in July. For more detailed information, visit Visby climate.
In conclusion, Gotland, Sweden, experiences a dynamic interplay of climate factors that shape its unique environmental landscape throughout the year. From the temperate maritime climate that brings mild summers and cool winters, to the clear seasonal variations in precipitation, sunshine duration, and UV Index, each aspect contributes to the island's vibrant ecosystem and cultural practices. The gradual increase in daylight hours from the depths of winter to the long summer days fosters a rich outdoor lifestyle, while the fluctuations in UV levels underscore the importance of sun protection during the warmer months. Overall, understanding these climatic elements is crucial for appreciating Gotland's natural beauty and for promoting sustainable practices among its residents and visitors alike.