Last updated: August 27, 2025
In May, Rjukan, Norway, experiences a diverse weather landscape, with temperatures ranging from a chilly -14°C (7°F) at night to a pleasant maximum of 21°C (70°F) during the day. The average temperature hovers around a crisp 5°C (40°F), setting the stage for a refreshing spring atmosphere. With 88 mm (3.5 in) of precipitation spread across 12 days, residents can expect some rain, contributing to the region's lush greenery. The humidity level at 75% provides a moisture-laden environment, enhancing the vibrant natural beauty of Rjukan as it transitions into the warmer months.
In May, Rjukan, Norway begins to shake off the grip of winter, welcoming more moderate temperatures that hint at the approaching summer. With a minimum of -14°C (7°F) and a comfortable average of 5°C (40°F), this month marks a significant shift from the biting cold of earlier months. The highs soar to a pleasant 21°C (70°F), inviting locals and travelers alike to enjoy outdoor activities amid the breathtaking scenery. As the region transitions from April's chilly embrace, the burgeoning warmth of May not only brings longer daylight hours but also an invigorating spirit of renewal, making it an ideal time to explore Rjukan's stunning natural landscapes.
May marks a significant transition in Rjukan, Norway, as the region experiences an increase in precipitation, totaling 88 mm (3.5 in) over 12 days. This uptick follows April's lighter rainfall of 51 mm (2.0 in), highlighting the arrival of spring and the onset of the wetter months ahead. The pattern continues into June, where precipitation peaks at 126 mm (5.0 in), revealing a trend of increasing rainfall as summer approaches. As nature awakens, May's showers not only nourish the landscape but also set the stage for the lush greenery that characterizes the following months. The fluctuation in precipitation days—from a modest 8 days in April to 12 in May—further emphasizes the growing vitality of the season, making it a crucial time for both the environment and outdoor enthusiasts in Rjukan.
As spring transitions into summer in Rjukan, Norway, May heralds a notable drop in humidity, reaching a comfortable 75%. This decline from April's 83% marks a shift towards the drier conditions that the region experiences as temperatures rise. The trend continues into June and July, where humidity levels stabilize around 74%, making these months ideal for outdoor activities. However, this temporary relief gives way to a gradual increase in humidity as autumn approaches, with September's readings climbing back to 86%. Overall, May offers a pleasant reprieve, setting the stage for the sun-kissed days of summer ahead while hinting at the wetter months to follow.
In May, Rjukan, Norway experiences a notable increase in the UV Index, reaching a peak of 6, categorized as high exposure. This rise marks a transition from the more moderate levels seen in the previous months, emphasizing the need for proactive sun protection as burn times drop to 25 minutes. As the days lengthen and temperatures warm, outdoor activities become more enticing, but residents and visitors alike should be mindful of the sun's potency. This trend of increasing UV levels continues into June and July, underscoring the importance of staying informed. For more detailed insights, visit Rjukan UV Index.
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In May, Rjukan, Norway, basks in an impressive 406 hours of sunshine, marking a significant increase from the 360 hours recorded in April. This upward trend continues as the daylight stretches further into summer, with June and July illuminating the landscape with 411 and an astounding 451 hours, respectively. As spring turns to summer, residents and visitors alike can revel in the growing warmth and light, a delightful contrast to the shorter, darker days of winter, where January sees a mere 83 hours of sun. The gradual ascent from the wintry gloom showcases Rjukan’s transformation into a vibrant destination, welcoming the abundance of sunshine that characterizes the beautiful Norwegian summer.
When considering the likelihood of sunny weather in Rjukan, Norway during May, it's important to note a noticeable trend in sunshine throughout the year. While April enjoys a more promising 56% chance of sun, May sees a significant drop to only 26%, positioning it among the gloomiest months. Following this, June and July show a slight recovery with 30% and 40% chances, respectively, indicating that the prolonged daylight of summer starts to emerge. Despite the allure of spring, those planning outdoor activities in May should be prepared for overcast skies, as the month often yields more clouds than sunshine.
In Rjukan, Norway, the progression of daylight throughout the year is a captivating dance of light, with May standing out as a month of transformation. Beginning the year with a mere 6 hours of daylight in January, the sun gradually awakens, offering 9 hours in February and then reaching 11 hours by March. As spring unfolds, April brings a remarkable increase to 14 hours, culminating in May with 17 hours of glorious daylight. This trend continues, peaking in June with an impressive 18 hours before gradually tapering off in the summer months. The gentle decline in daylight from July's 17 hours back down to 6 hours by December illustrates the dramatic seasonal shifts that Rjukan experiences, accentuating the beauty of its long, sunlit days in spring and summer.
In Rjukan, Norway, the May wind paints a serene picture as average wind speeds reach 2.3 m/s (5 mph), a slight dip from the slightly breezier days of March and April. This gentle wind carries the freshness of spring while hinting at the more dynamic conditions on the horizon. As the region transitions to summer, the trend shows a gradual uptick in wind speeds, peaking in October at 3.4 m/s (8 mph). From the calm beginnings of the year, with January and February winds at just 2.1 m/s and 2.4 m/s respectively, the overall pattern suggests that Rjukan enjoys a mild and refreshing breeze during May, setting a tranquil tone before the season’s winds begin to pick up in the following months.
Weather in Rjukan varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Rjukan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between May and January, we observe significant differences in temperature and overall conditions. May boasts a minimum temperature of -14°C (7°F) and an average of 5°C (40°F), reaching a maximum of 21°C (70°F). This month experiences more moderate humidity at 75% and sees about 88 mm (3.5 in) of precipitation over roughly 12 days. Conversely, January is much colder, with minimum temperatures dropping to -25°C (-13°F) and an average of -6°C (21°F); the maximum only reaches 5°C (42°F). This winter month experiences higher humidity levels at 93% and slightly less precipitation at 68 mm (2.7 in) spread over 11 days. For more detailed insights, you can refer to Rjukan weather in January.
May and February present starkly contrasting weather conditions. In May, temperatures range from a chilly minimum of -14°C (7°F) to a pleasant high of 21°C (70°F), with an average of 5°C (40°F). The month experiences 88 mm (3.5 in) of precipitation over 12 days, accompanied by a humidity level of 75%. In contrast, February is much colder, with temperatures dipping as low as -25°C (-13°F) and peaking at only 6°C (43°F), averaging -7°C (20°F). It sees slightly less precipitation at 73 mm (2.9 in) across 13 days, but the humidity is notably higher at 91%. For more details about February weather in Rjukan, check out Rjukan weather in February.
In comparing the weather of March and May, a stark contrast emerges. In March, temperatures range from a minimum of -24°C (-11°F) to a maximum of 12°C (53°F), with an average of -4°C (24°F), reflecting the lingering chill of winter. The humidity is notably high at 88%, and while precipitation is slightly lower than in May at 75 mm (2.9 in), it occurs over 13 days. Conversely, May sees a significant warming trend, with temperatures ranging from -14°C (7°F) to a more comfortable maximum of 21°C (70°F) and an average of 5°C (40°F). Although it experiences slightly higher precipitation of 88 mm (3.5 in) over fewer days (12 days), the humidity remains high at 75%. For a more detailed look at March weather specifically, you can visit Rjukan weather in March.
In comparing the weather between April and May, it is evident that May brings a notable rise in temperatures, with minimums of -14°C (7°F), an average of 5°C (40°F), and maximums reaching 21°C (70°F). In contrast, April experiences colder conditions, with minimum temperatures dropping to -19°C (-2°F), an average of -1°C (30°F), and maximums only reaching 15°C (59°F).
Additionally, May has higher precipitation levels, totaling 88 mm (3.5 in) over 12 days, compared to April's 51 mm (2.0 in) across 8 days. Humidity also slightly decreases in May at 75%, down from April's 83%. For a detailed look at April's conditions, you can check out Rjukan weather in April.
In comparing the weather of May and June, we see a notable shift in both temperature and precipitation. May features a minimum temperature of -14°C (7°F) and an average of 5°C (40°F), with highs reaching 21°C (70°F). In contrast, June presents warmer conditions with a minimum of -1°C (30°F), an average of 10°C (51°F), and maximum temperatures peaking at 23°C (74°F). While May experiences 88 mm (3.5 in) of precipitation over 12 days, June sees an increase in precipitation to 126 mm (5.0 in) across 14 days, albeit with slightly lower humidity at 74%. For more detailed insights on June weather, check out Rjukan weather in June.
In comparing the weather between May and July, it is evident that both months exhibit significant differences in temperature and precipitation. May experiences a broader temperature range, with minimums dropping to -14°C (7°F) and maximums reaching 21°C (70°F), resulting in an average of 5°C (40°F). In contrast, July offers milder conditions, with minimums at 0°C (33°F) and maximums climbing to 25°C (77°F), leading to a warmer average of 12°C (53°F).
Precipitation in July is slightly higher, accumulating 114 mm (4.5 in) over 14 days compared to May's 88 mm (3.5 in) over 12 days. Despite this increase, humidity levels remain fairly consistent, with May at 75% and July slightly lower at 74%. For more detailed insights into July's weather patterns, you can refer to Rjukan weather in July.
In comparing the weather of May and August, it's evident that both months experience a range of temperatures and precipitation, but with some notable differences. May sees temperatures ranging from a chilly -14°C (7°F) at night to a pleasant max of 21°C (70°F), with an average temperature of 5°C (40°F). It has a total precipitation of 88 mm (3.5 in) over 12 days, while humidity sits at around 75%.
In contrast, August presents slightly warmer conditions, with temperatures dipping to a minimum of -1°C (30°F) and peaking at 22°C (72°F), averaging at 10°C (50°F). The month is also wetter with 113 mm (4.5 in) of precipitation spread over 17 days, contributing to a higher humidity level of 78%.
For more detailed insights into August weather, you can visit Rjukan weather in August.
May and September present contrasting yet similar weather patterns. In May, temperatures can vary from a chilly -14°C (7°F) at night to a pleasant 21°C (70°F) during the day, with an average temperature of around 5°C (40°F). The month sees about 88 mm (3.5 in) of precipitation over 12 days, accompanied by a humidity level of 75%. In contrast, September experiences milder nights with a minimum of -3°C (27°F) and daytime highs that match May at 21°C (69°F), but with a slightly higher average of 6°C (44°F). The precipitation increases notably to 134 mm (5.3 in) over 16 days, and humidity rises further to 86%. For those interested in more details, you can check out the Rjukan weather in September. Overall, both months highlight a transition in weather, with September being wetter and more humid than May.
May and October present contrasting weather patterns with significant differences in temperature, precipitation, and humidity. In May, temperatures range from a minimum of -14°C (7°F) to a pleasant maximum of 21°C (70°F), resulting in a mild average of 5°C (40°F) and relatively lower humidity at 75%. Conversely, October experiences cooler weather, with temperatures dropping to a minimum of -15°C (6°F) and peaking at only 13°C (56°F), yielding an average temperature of 2°C (35°F). Additionally, October is characterized by increased precipitation, totaling 143 mm (5.6 in) over 19 days, compared to May’s 88 mm (3.5 in) across 12 days, and a heightened humidity level of 92%. For more detailed information on October weather, you can visit Rjukan weather in October.
May and November exhibit striking contrasts in weather patterns. In May, temperatures vary from a chilly -14°C (7°F) at night to a pleasant 21°C (70°F) during the day, with an average of 5°C (40°F). The month witnesses 88 mm (3.5 in) of precipitation over approximately 12 days and maintains a humidity level of 75%. In stark contrast, November experiences much colder conditions, with temperatures dipping as low as -26°C (-14°F) and averaging -3°C (27°F), while the maximum only reaches 9°C (49°F). Precipitation increases to 112 mm (4.4 in) spread over 16 days, coupled with higher humidity at 92%. For a more detailed look at November's weather, check out Rjukan weather in November.
May and December present distinctly different weather patterns. In May, temperatures range from a chilly -14°C (7°F) at night to a pleasant 21°C (70°F) during the day, with an average of 5°C (40°F). The month experiences 88 mm (3.5 in) of precipitation over about 12 days, and humidity is around 75%. Conversely, December is much colder, with minimum temperatures dropping to -22°C (-8°F) and a maximum of just 5°C (42°F), resulting in an average temperature of -6°C (22°F). This month sees more precipitation, totaling 119 mm (4.7 in) spread across 18 days, coupled with higher humidity levels at 92%. For more insights into December weather, check Rjukan weather in December.
As May unfolds in Rjukan, the weather begins to shift dramatically from the chill of winter, providing a refreshing transition into spring. With average temperatures hovering around a mild 5°C, the month often attracts visitors eager to experience the beauty of blooming landscapes. Though one can occasionally see highs reaching a pleasant 21°C, it's essential to prepare for cooler days, especially as nighttime temperatures can dip as low as -14°C. Rainfall during this time is relatively moderate, with about 88 mm spread over 12 days, keeping the environment lush and vibrant. The humidity, averaging around 75%, adds a unique freshness to the air. Overall, May stands out as a month of potential and vitality, paving the way for the warmer days ahead. To explore more about the weather patterns throughout the year, check out Rjukan Climate.