Last updated: August 27, 2025
In May, Sandefjord, Norway experiences a delightful transition towards warmer weather. With daytime temperatures peaking at a maximum of 27°C (81°F), the pleasant average stands at 11°C (52°F), while the chilly nights can drop to a minimum of 1°C (33°F). This month sees 79 mm (3.1 in) of rainfall, distributed over approximately 11 days, contributing to a humidity level of 73%. As the landscape bursts into life, May in Sandefjord offers a refreshing blend of mild warmth and occasional showers, perfect for those seeking to enjoy the beauty of Norway’s spring.
As May arrives in Sandefjord, Norway, the temperatures take a delightful turn, marking a clear transition into warmer days. With minimums hovering around 1°C (33°F), the chill of winter gives way to a pleasant average of 11°C (52°F), creating an inviting atmosphere for outdoor activities. The month can truly warm up, reaching a maximum of 27°C (81°F), signaling that spring is in full swing. Compared to previous months, the climate shows a significant rise, especially from April, where even the highs made a modest leap to 20°C (67°F). This uptick not only enhances the natural beauty of the landscape, as blossoms burst into life, but also beckons residents and visitors alike to soak in the vibrant essence of May in this picturesque Norwegian town.
May in Sandefjord, Norway, typically experiences a significant increase in precipitation, amassing 79 mm (3.1 in) over 11 days of rainfall. This marks a noticeable rise from the drier April with only 37 mm (1.5 in) across just 5 days, signaling the transition into the wetter months. The consistent rainfall in May sets the stage for the upcoming summer, as precipitation levels climb further in June and July. As the days grow warmer, this uptick in moisture not only nourishes the landscape but also reflects the changing season, with lush greenery emerging as a hallmark of late spring in this charming Norwegian locale.
As spring unfolds in Sandefjord, Norway, May experiences a significant drop in humidity, averaging around 73%. This decline continues the trend seen from the previous months, where humidity levels have steadily decreased from a high of 94% in January to 82% in April. The arrival of warmer weather brings a refreshing change, as May stands out as one of the driest months leading into summer, heralding a brief respite before higher humidity returns in the following months. As June approaches, conditions remain comfortable with a modest 71% humidity, setting the stage for a pleasant Nordic summer.
As spring transitions into summer, the UV Index in Sandefjord, Norway, sees a notable rise. In May, the UV Index reaches 5, categorized as moderate, indicating a burn time of just 30 minutes. This marks a clear increase from the previous months, where the index remained low in January and February, and only entered the moderate range in March and April. With the longer days and more intense sunlight, residents and visitors alike should take care to protect their skin during outdoor activities, as the UV levels will continue to escalate in June and July. For more detailed information on UV levels throughout the year, visit Sandefjord UV Index.
UV Risk Categories
May in Sandefjord, Norway, is a delightful milestone in the transition to summer, boasting 428 hours of sunshine — a significant increase from the 372 hours in April. This upward trend mirrors the overall progression of daylight hours as the year unfolds, with each month leading into warmer days filled with light. The sunshine in May not only enhances the natural beauty of the surroundings but also invigorates the community, inviting both locals and visitors to bask in the outdoors. As the sun shines brighter, Sandefjord comes alive, setting the stage for the peak summer months ahead, where June and July promise even more luminous days with 464 and 475 hours of sunshine, respectively.
As May rolls into Sandefjord, Norway, the likelihood of sunny weather takes a dip, with a 31% chance of sunshine. This marks a noticeable contrast to the seasonal uptick in April, which boasts a 58% chance, hinting at the playful unpredictability of spring. While May is often associated with blossoming flowers and longer days, the sun seems to shy away a bit before the summer warms up temperatures in June, where the chance rises again to 41%. This slight decline in sunshine from April to May suggests a transitional period, where the lingering chill can still cast a shadow over those optimistic outdoor plans. Embracing the fleeting sunny moments in May may be key to enjoying this charming town as it awakens from winter's grasp.
In Sandefjord, Norway, the progression of daylight throughout the year reveals a captivating transformation. January starts with a mere 6 hours of daylight, gradually increasing to 9 hours in February and 11 hours by March. As spring unfolds, April boasts a delightful 14 hours, paving the way for the glorious 17 hours of daylight in May, where the long days truly begin to signify the arrival of summer. This radiant trend peaks in June with an impressive 18 hours, before gently tapering off. By July, daylight returns to 17 hours, followed by 15 hours in August, as the daylight gradually shortens in the fall. September offers a soft descent to 12 hours, and by October, daylight diminishes to 10 hours. The year closes with 7 hours in November and levels out again to 6 hours in December, highlighting the stark contrast between the luminous summer months and the subdued winter days.
In May, Sandefjord experiences a gentle shift in its winds, with an average speed of 3.3 m/s (about 7 mph), marking a slight reduction from the breezier months of earlier spring. This transitional month reflects a broader trend in the weather patterns of the region, as wind speeds gradually decline from their peak in the colder months. Notably, compared to the gusty winds of January and February, which maintained an average of 4.1 m/s (9 mph), May offers a more serene atmosphere ideal for enjoying outdoor activities. As summer approaches, the winds continue to ease, hinting at the calm and mild days that characterize the upcoming months. The shifting winds underscore the unique charm of Sandefjord in late spring, as nature prepares for the warmer, tranquil days ahead.
Weather in Sandefjord varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sandefjord, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of May and January, it is evident that January is significantly colder, with temperatures ranging from a minimum of -13°C (9°F) to a maximum of 11°C (51°F) and an average temperature of 0°C (33°F). In contrast, May sees more moderate conditions, with temperatures ranging from 1°C (33°F) to 27°C (81°F) and an average of 11°C (52°F). Both months experience similar levels of precipitation, with January receiving 75 mm (2.9 in) over 9 days and May accumulating 79 mm (3.1 in) over 11 days, although January has much higher humidity at 94% compared to May’s 73%. For more detailed information, you can visit Sandefjord weather in January.
May and February present a stark contrast in weather patterns. In May, temperatures range from a minimum of 1°C (33°F) to a pleasant maximum of 27°C (81°F), with an average of 11°C (52°F), creating a comfortable spring atmosphere. February, on the other hand, is much colder, with temperatures dipping as low as -13°C (8°F) and averaging around 0°C (32°F). Both months receive similar amounts of precipitation—about 80 mm (3.1 in) over 11 days—but February experiences higher humidity at 92%, compared to May's 73%. For more details on February weather in Sandefjord, visit Sandefjord weather in February.
In comparing the weather of May and March, May experiences significantly warmer temperatures, with a minimum of 1°C (33°F) and an average of 11°C (52°F), peaking at 27°C (81°F). In contrast, March is much cooler, featuring a minimum of -12°C (10°F) and an average of just 2°C (36°F), with a maximum of 14°C (58°F). Precipitation levels are fairly similar, with May receiving 79 mm (3.1 in) over 11 days and March accumulating 77 mm (3.0 in) over 9 days. Interestingly, March has a higher humidity level of 89%, compared to May's 73%. For a closer look at March weather specifics, you can check Sandefjord weather in March.
The weather in May shows a noticeable warming trend compared to April, with average temperatures rising from 6°C (43°F) to 11°C (52°F). While April still experiences nighttime lows around -6°C (21°F), May's temperatures rarely drop below 1°C (33°F), offering more pleasant conditions. Additionally, May sees increased precipitation at 79 mm (3.1 in) over 11 days, compared to April's 37 mm (1.5 in) over just 5 days, suggesting that while May is wetter, it also tends to have warmer and more moderate weather overall. For more detailed information, you can check Sandefjord weather in April.
When comparing the weather in May and June, we notice a marked increase in average temperatures. May sees a minimum of 1°C (33°F) and an average of 11°C (52°F), while June starts warmer with a minimum of 6°C (44°F) and an average of 16°C (61°F). Despite having the same maximum temperature of 27°C (81°F), June experiences slightly higher precipitation levels at 90 mm (3.6 in) compared to May’s 79 mm (3.1 in), though both months have approximately the same number of rainy days at 11. Additionally, humidity remains relatively constant, with May at 73% and June at 71%. For more detailed insights, you can check out Sandefjord weather in June.
In comparing the weather between May and July, it's clear that July tends to be warmer overall. May has a cooler temperature range, with lows of 1°C (33°F) and highs reaching only 27°C (81°F), while July sees minimum temperatures of 9°C (49°F) and maximums climbing to 31°C (87°F). Precipitation remains relatively consistent, with May experiencing 79 mm (3.1 in) over 11 days and July slightly wetter at 93 mm (3.7 in) also over 11 days. Humidity levels are similar, with May at 73% and July slightly lower at 72%. For a more detailed look at the July weather, you can visit Sandefjord weather in July.
In May, temperatures in Sandefjord range from a chilly 1°C (33°F) at night to a warm 27°C (81°F) during the day, with an average of 11°C (52°F). The month sees about 79 mm (3.1 in) of precipitation over 11 days, accompanied by a humidity level of 73%. In contrast, August features a more moderate temperature range, with nighttime lows of 9°C (48°F) and daytime highs reaching 26°C (79°F), averaging 17°C (62°F). Rainfall increases slightly to 90 mm (3.5 in) over 13 days, and humidity levels rise to 77%. For more information, you can check this link: Sandefjord weather in August.
In May, temperatures in Sandefjord range from a chilly minimum of 1°C (33°F) to a pleasant maximum of 27°C (81°F), with an average of 11°C (52°F). This month experiences moderate precipitation of 79 mm (3.1 in) over approximately 11 days, and humidity levels are around 73%.
Conversely, September presents a different weather profile, with minimum temperatures at 5°C (40°F), an average of 13°C (56°F), and a maximum of 23°C (73°F). Precipitation in September is significantly higher, totaling 138 mm (5.4 in) over about 14 days, accompanied by increased humidity of 86%. For more details, you can check Sandefjord weather in September.
May and October present quite contrasting weather patterns. In May, temperatures range from a minimum of 1°C (33°F) to a maximum of 27°C (81°F), with an average of 11°C (52°F) and relatively moderate precipitation of 79 mm (3.1 in) over about 11 days. The humidity at this time is also moderate, sitting around 73%. In contrast, October witnesses a drop in temperatures, with a minimum of -1°C (30°F) and a maximum of 17°C (62°F), leading to an average of 9°C (48°F). The month sees significantly higher precipitation, totaling 155 mm (6.1 in) over approximately 15 days, and increased humidity at 92%. For more detailed information on October weather in Sandefjord, please check Sandefjord weather in October.
May and November present strikingly different weather patterns. May is characterized by a milder temperature range, with lows of around 1°C and highs reaching up to 27°C, making it a much warmer month overall, with an average temperature of 11°C. In contrast, November typically experiences chillier temperatures, with averages around 4°C, and maximums only reaching 14°C, while dipping to lows of -7°C. Additionally, May sees about 79 mm of precipitation over approximately 11 days, whereas November is wetter, accumulating 128 mm over about 16 days, resulting in a higher humidity level of 93%. For more specifics on November weather, you can visit Sandefjord weather in November.
May and December exhibit significantly different weather patterns. In May, temperatures range from a mild 1°C (33°F) at night to a warm 27°C (81°F) during the day, with an average temperature of 11°C (52°F). The month sees about 79 mm (3.1 in) of precipitation over 11 days, accompanied by a humidity level of 73%. In contrast, December experiences much colder conditions, with temperatures dropping to a minimum of -9°C (16°F) and peaking at just 9°C (49°F), averaging at 1°C (34°F). The month is notably wetter, with 127 mm (5.0 in) of precipitation spread over 17 days and a high humidity of 93%. For a more detailed look at December weather, visit Sandefjord weather in December.
May in Sandefjord heralds a delightful shift in weather, as the chill of winter gives way to the warmth of spring. With temperatures rising significantly and an average that marks a welcome change, outdoor activities become more appealing, inviting both locals and tourists to explore the beautiful surroundings. Though May does bring some rain, the moderate humidity adds to the refreshing atmosphere rather than detracting from it. This month stands apart from the cooler, darker days of earlier months, showcasing a vibrant embrace of nature awakening. For further insights into Sandefjord's weather patterns throughout the year, check out Sandefjord Climate.