Last updated: January 18, 2025
Vestfold og Telemark, Norway, showcases a diverse climate characterized by a blend of Köppen-Geiger climate classes, including Cfb (Temperate oceanic), Dfb and Dfc (Continental), along with ET (Tundra). This region experiences notable temperature variations, with minimums plunging to -26°C (-14°F) in November and averaging around 7°C (45°F) annually. In stark contrast, the summer months can reach maximums of 33°C (92°F) in July, illustrating the climatic extremes this area endures throughout the year. Such fluctuations render Vestfold og Telemark not only a meteorological interest but also a unique ecosystem.
Temperature patterns in Vestfold og Telemark, Norway, reveal distinct seasonal trends characterized by harsh winters and mild summers. During the winter months of January and February, the region experiences extreme cold, with minimum temperatures plummeting to -25°C (-13°F) and average temperatures hovering around -1°C (30°F). As spring approaches, temperatures gradually rise, notably in April, where the average reaches 5°C (41°F) and maximums near 23°C (74°F), signaling a shift towards warmer conditions. By May and June, the climate becomes significantly milder, with average temperatures exceeding 10°C (50°F) and July bringing peak warmth at 17°C (63°F) on average, showcasing maximums of 33°C (92°F). The warmth continues into August before transitioning into a cooler September, while the onset of October marks the return of lower temperatures, averaging 8°C (46°F). The yearly cycle concludes with a return to winter, as November and December see temperatures drop again, emphasizing the region's remarkable climatic contrasts and seasonal diversity.
Tonsberg experiences a minimum temperature of -12°C (11°F) in February, with a maximum of 31°C (88°F) in July, as detailed in the monthly temperatures in Tonsberg. In Larvik, the temperatures range from a minimum of -10°C (14°F) in March to a maximum of 26°C (80°F) in July, according to the monthly temperatures in Larvik. Meanwhile, Sandefjord records a minimum of -13°C (8°F) in February and reaches up to 31°C (87°F) in July, as shown in the monthly temperatures in Sandefjord.
Precipitation in Vestfold og Telemark, Norway, exhibits a seasonal pattern with notably higher levels during the autumn and winter months. January and February see average rainfall of 74 mm and 80 mm, respectively, accompanied by about 9 to 11 days of precipitation. As spring unfolds, there is a noticeable dip in rainfall, particularly in April, which averages 40 mm across just 6 days. However, May bounces back with 82 mm, signaling the transition to the wettest months ahead.
The peak precipitation occurs in the summer and early autumn, with July recording the highest at 102 mm over 11 days, followed closely by September and October with 136 mm and 150 mm respectively. This trend indicates the region's shift to a wetter period, with days of rain increasing from 10 days in May to 15 in October. Such patterns highlight the dynamic climate of Vestfold og Telemark, where variations in precipitation significantly shape the local landscape and ecosystems throughout the year.
In Vestfold og Telemark, Norway, sunshine duration exhibits a clear seasonal variation, with notable increases as the year progresses toward summer. Beginning in January, the region receives a mere 93 hours of sunlight, which gradually climbs through February to 178 hours and reaches 288 hours in March. This transition heralds the arrival of spring, culminating in April with 368 hours of bright sunshine. As the days grow longer, May and June witness an impressive surge, peaking in July with 470 hours, marking the height of summer. This period of abundant sunlight significantly enhances the region's vibrancy, making it an ideal time for outdoor activities.
In stark contrast, the latter part of the year sees a decline in sunshine duration, beginning in August with 402 hours, followed by a sharp drop to 280 hours in September. As autumn sets in, October brings only 226 hours, and the situation further deteriorates in November and December, where the sunshine duration falls to 132 hours and 94 hours, respectively. These winter months exemplify the challenging conditions with reduced daylight, reflecting the stark contrasts in Vestfold og Telemark’s climate. The dynamic shifts not only characterize the seasonal rhythms but also deeply influence the region's lifestyle and ecological balance throughout the year.
The UV Index in Vestfold og Telemark, Norway, exhibits significant variation throughout the year, reflecting seasonal changes in sun exposure. During the winter months of January and February, the UV Index remains low, with values of 1 and 2 respectively, allowing for relatively safe sun exposure of up to 45 minutes without risk of skin damage. As spring arrives in March, the UV Index increases to 3, indicating a moderate risk, and continues to climb through April, reaching 5. This transition marks a shift toward greater caution as outdoor activities become more common, necessitating shorter burn times of 30 minutes.
The summer months characterize the peak UV exposure, with the Index peaking at 7 in both June and July, categorized as high risk and requiring protective measures within 25 minutes of sun exposure. August sees a slight decline to 6, but remains in the high category. As fall approaches, the UV Index decreases again, dipping to 4 in September and returning to low values of 2 in October, ultimately settling back to 1 in November and December. This seasonal fluctuation underscores the importance of UV awareness in outdoor activities, especially during the sunnier months when protective measures are crucial for skin safety.
UV Risk Categories
In Vestfold og Telemark, Norway, daylight duration reflects a dramatic seasonal transformation, beginning with the shortest days of winter in January, when daylight lasts only 6 hours. As February unfolds, daylight increases to 9 hours, signaling the gradual return of light. March continues this trend, extending to 11 hours, and by April, the daylight duration reaches a substantial 14 hours, bringing an invigorating atmosphere as spring takes hold. May and June showcase the pinnacle of daylight, with June offering nearly 18 hours of sun, creating ideal conditions for outdoor activities and exploration.
As summer transitions into autumn, daylight begins to wane, with July slightly decreasing to 17 hours before tapering off to 15 hours in August. September sees a steeper decline to 12 hours, and as October arrives, daylight shortens further to 10 hours. The return of winter brings back the long, dark nights with November offering only 7 hours of daylight and just 6 hours again in December. This cycle of daylight duration not only shapes the ecological landscape of Vestfold og Telemark but also significantly impacts the daily lives and activities of its residents, emphasizing the importance of light throughout the year.
Asgardstrand, Norway, experiences a varied climate with cold winters and mild summers. January's temperatures range from -11°C to 11°C, while July can reach highs of 31°C. Precipitation is prevalent, particularly from September to November, with October seeing the highest rainfall at 157 mm. Sunshine peaks during the summer months, with July receiving 475 hours of sunlight. For more details, visit Asgardstrand climate.
Horten, Norway experiences a cold coastal climate marked by distinct seasonal variations. Winter months, particularly January and February, can see temperatures dropping as low as -18°C (0°F), while summers peak around 33°C (92°F) in July. Precipitation is abundant, especially in the fall, with October receiving 127 mm (5.0 in), and sunshine hours reach their maximum during the summer, topping 471 hours in July. For more detailed information, please visit Horten climate.
The climate in Kragerø, Norway, varies significantly throughout the year, with cold winters and mild summers. January temperatures range from -7°C to 10°C, with precipitation peaking in October at 183 mm. The highest average temperatures occur in July and August, around 17°C to 24°C, while sunshine hours reach their maximum during the summer months. Rainfall is abundant in autumn, particularly in September and November, making it one of the wettest seasons. For more detailed information, visit Kragero climate.
Langesund, Norway experiences a cold climate with temperatures ranging from a minimum of -11°C (13°F) in winter months to a maximum of 27°C (80°F) in the peak of summer. January and February are particularly chilly, with significant precipitation peaking in the fall, especially in September and October, which see over 140 mm (5.5 in) of rain. Sunshine hours vary throughout the year, with the longest days in summer months, providing ample daylight for outdoor activities. For more detailed climate information, visit Langesund climate.
Larvik, Norway experiences a varied climate characterized by cold winters and mild summers. January and February are the coldest months, with average temperatures around 1-2°C, while July boasts the warmest temperatures, averaging 18°C. Precipitation is fairly consistent throughout the year, peaking in September and October, with August and July receiving significant rainfall as well. The region receives ample sunshine during the summer months, with over 475 hours in July, compared to only 94 hours in January. For more details on weather patterns, visit Larvik climate.
Notodden, Norway, experiences a continental climate characterized by cold winters and mild summers. January temperatures often drop to a minimum of -21°C, while July can reach highs of 30°C, showcasing a significant seasonal variation. Precipitation is heaviest in the summer months, peaking at 116 mm in July, while sunshine hours reach a maximum of 470 in the same month. The relatively dry months of April and May provide a welcome contrast, with lower precipitation and increasing daylight. For more details, visit Notodden climate.
Rjukan, Norway experiences a diverse climate characterized by cold winters and mild summers. January temperatures can drop as low as -25°C (-13°F) with an average of -6°C (21°F), while July sees milder temperatures averaging 12°C (53°F) and peaking at 25°C (77°F). Precipitation is significant throughout the year, peaking in June with 126 mm (5.0 in) while November typically experiences 112 mm (4.4 in). Sunshine hours are plentiful in the summer months, reaching up to 451 hours in July, but decrease sharply in winter, dropping to just 69 hours in December. For more detailed information, visit Rjukan climate.
Sandefjord, Norway experiences a temperate climate with distinct seasons. Winters are cold, with temperatures in January reaching lows of -13°C (9°F) and averaging around 0°C (33°F). Summers are mild to warm, peaking in July with a maximum of 31°C (87°F) and abundant sunshine, totaling up to 475 hours. Precipitation is relatively high from September to November, with October being the wettest month at 155 mm (6.1 in). Overall, Sandefjord offers a varied climate that changes significantly throughout the year, making it a unique destination. For more details, visit Sandefjord climate.
Seljord, Norway experiences a diverse climate characterized by cold winters and mild summers. January sees temperatures dropping as low as -22°C (-7°F) with heavy precipitation averaging 72 mm, while July enjoys warmth with highs around 28°C (84°F) and ample sunshine totaling 468 hours. Precipitation peaks in September and October, contributing to a lush landscape, even as temperatures begin to cool. For more detailed information on the climate, visit Seljord climate.
Skien, Norway experiences a cold climate with significant variation in temperature and precipitation throughout the year. Winters are harsh, with January and February lows reaching -16°C (4°F) and -15°C (5°F) respectively, and notable snowfall contributing to monthly precipitation averages around 81 mm. Conversely, summers are relatively mild; July boasts average temperatures of 17°C (63°F) and the highest precipitation at 108 mm. The region enjoys the most sunshine during the summer months, particularly in July with 472 hours of sunshine. For detailed climate information, visit Skien climate.
Stavern, Norway experiences a varied climate throughout the year, with January being the coldest month, featuring temperatures ranging from -9°C to 11°C and significant precipitation of 72 mm. Summer months, particularly July and August, are warm with maximum temperatures reaching 26°C and 24°C, alongside higher rainfall peaking in September at 128 mm. The area enjoys ample sunshine from May to July, with June having the highest at 463 hours. Conversely, the winter months see reduced sunlight, with January only offering 94 hours. For more detailed information, visit Stavern climate.
Tonsberg, Norway experiences a varied climate throughout the year, with January temperatures ranging from a low of -11°C (12°F) to a high of 11°C (51°F). As spring approaches, temperatures gradually rise, peaking in July at an average of 18°C (65°F) and maxing out at 31°C (88°F). Precipitation is highest in the fall, particularly in October with 157 mm (6.2 in), while summer months enjoy more sunshine, especially June and July, with up to 475 hours. This blend of cooler winters, mild summers, and significant rainfall makes Tonsberg's climate unique and dynamic. For more detailed information, check out Tonsberg climate.
In conclusion, the climate and seasonal patterns of Vestfold og Telemark, Norway, reveal a complex interplay of temperature, precipitation, sunshine duration, UV Index, and daylight hours that collectively shape the region's unique environment. From the biting cold and limited daylight of winter to the vibrant, sun-soaked days of summer, residents and visitors experience a wide range of climatic conditions. Understanding these patterns is essential for making informed decisions about outdoor activities, health precautions against UV exposure, and agricultural practices. As climate variability continues to influence weather patterns globally, awareness of local climatic trends will remain crucial for adapting to the ongoing changes in Vestfold og Telemark's natural landscape and lifestyle.