Last updated: August 27, 2025
In Jukkasjärvi, Sweden, September unveils a captivating transition from summer to autumn, characterized by temperatures ranging from a maximum of 21°C (69°F) to a chilly minimum of -4°C (24°F). The average temperature hovers around a brisk 7°C (44°F), inviting both locals and visitors to embrace the crisp air. With precipitation totaling 73 mm (2.9 in) over 11 days, the month showcases the quintessential beauty of fall amidst a backdrop of moisture-rich atmosphere, as reflected in a notable humidity level of 92%. Experience the enchanting shift of seasons in this Arctic gem, where each day brings a unique blend of colors and temperatures.
In September, Jukkasjärvi, Sweden begins to transition from the warm embrace of summer to the crisp touch of autumn. With temperatures ranging from a chilly -4°C (24°F) to a pleasant 21°C (69°F), there's a notable shift in the climate as the month progresses. The average temperature hovers around 7°C (44°F), offering a refreshing respite from the heat of summer. This month marks a significant cooling trend, as September's lows are starkly lower than the warmest summer months, yet still display a hint of lingering warmth. As nights grow cooler and days begin to shorten, Jukkasjärvi invites visitors to experience its stunning autumn hues, making it a perfect time for exploration in this captivating Arctic region.
September in Jukkasjärvi, Sweden, marks a transition into the wetter autumn months, receiving 73 mm (2.9 in) of precipitation over 11 days. This amount reflects a slight decrease from the previous summer months of July and August, which experienced heavier rainfall, measuring 106 mm (4.2 in) and 102 mm (4.0 in) respectively. However, September’s consistent precipitation helps nourish the landscape as it prepares for the approaching winter chill. As the days grow shorter and temperatures begin to drop, the steady rhythm of rain creates a serene atmosphere, signaling the gradual shift towards colder, frostier conditions typical of the region.
In September, Jukkasjärvi experiences a notable rise in humidity, reaching 92%, a figure reflective of the transitional season as summer gently gives way to autumn. Following the warm, somewhat drier months of June and July, where humidity dipped to 81% and 84% respectively, the air begins to retain more moisture again as temperatures cool. This trend continues into October with a significant increase to 96%, suggesting that the arrival of fall brings with it a lush, refreshing quality to the atmosphere. As the year moves toward winter, the humidity rises further, culminating in the peak winter months, January and December, where it consistently holds at a remarkable 100%. This cycle highlights Jukkasjärvi's unique climate, characterized by its dramatic shifts from crisp, dry summers to the rich, moisture-laden air of autumn and winter.
In September, Jukkasjärvi experiences a UV Index of 3, indicating a moderate level of sun exposure that necessitates some caution, especially during midday hours. As summer wanes, the UV Index shows a slight decline from the peak of 5 in July and August, where sunburn risk was more significant with a burn time of just 30 minutes. This transition marks a gradual shift towards lower UV levels, reminiscent of the early spring months, yet still requiring awareness. With a burn time of 30 minutes, it remains crucial for residents and visitors to safeguard their skin while enjoying the fading warmth of autumn. For more detailed insights, visit the Jukkasjaervi UV Index.
UV Risk Categories
As summer transitions to autumn, September in Jukkasjärvi, Sweden, brings a beautifully balanced 260 hours of sunshine, representing a shift from the sun-drenched days of midsummer. This month marks a notable decline from the peak of 498 hours in June, enchanting residents and visitors with softer, gentler light as it prepares for the oncoming colder months. The gradual descent in daylight hours from September onward signals winter's approach, creating a striking contrast to the previous vitality of July and August. As nature begins to don its autumnal coat, the lingering warmth of September sunshine invites exploration, reflection, and a quieter rhythm in this serene Arctic paradise.
September in Jukkasjärvi, Sweden, brings a slim chance of sunshine with only about 23% likelihood of clear skies. As summer fades, this represents a slight decline from the sunnier months of July and June, which boast chances of 42% and 43% respectively. April and May also showed promising sun, but the pattern seems to shift as autumn approaches. Overall, while the sun may grace Jukkasjärvi occasionally in September, the lingering warmth of summer gives way to a more overcast weather pattern, setting the stage for the cooler, cloudier months ahead.
As summer transitions into autumn, September in Jukkasjärvi, Sweden, offers a gentle decline in daylight, with 13 hours of sunlight illuminating the crisp days. Following the exuberant brightness of June and July, where the sun graced the landscape for a full 24 hours and 22 hours, September marks a shift towards shorter days. While still bathed in a noticeable glow compared to the starkness of winter months—which only receive about 4 hours of daylight in November and December—the month serves as a precursor to the darkness ahead. The gradual reduction from the vibrant 20 hours of May showcases the ebb of summer's brilliance, allowing residents and visitors alike to embrace the enchanting hues of autumn as the days grow shorter.
As September unfolds in Jukkasjärvi, Sweden, the winds begin to pick up subtly, averaging a brisk 3.6 m/s (8 mph). This marks a refreshing transition from the summer months, where wind speeds hovered around a mild 2.7 m/s (6 mph) in August. The increasing gusts in September herald not only the arrival of autumn but also a shift from the typically gentle breezes of the previous months. The rise in wind speed reflects a broader trend as the year progresses, peaking during the spring and early fall, with March (3.7 m/s) and September leading the way. As nature prepares for the cold embrace of winter, the winds of September invigorate the landscape, inviting both locals and visitors to revel in the crisp, fresh air that characterizes this enchanting season.
Weather in Jukkasjaervi varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Jukkasjaervi, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present starkly contrasting weather conditions. In September, temperatures range from a mild minimum of -4°C (24°F) to a comfortable maximum of 21°C (69°F), with an average of 7°C (44°F). The month experiences 73 mm (2.9 in) of precipitation over 11 days, coupled with a relatively high humidity of 92%. In contrast, January is significantly colder, with temperatures plunging to a minimum of -31°C (-24°F) and an average of -11°C (13°F), only reaching a maximum of 5°C (41°F). This winter month sees less precipitation, totaling 38 mm (1.5 in) over the same number of days, but the humidity is notably higher at 100%. For a detailed look at January's weather, you can check Jukkasjaervi weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures range from a minimum of -4°C (24°F) to a pleasant maximum of 21°C (69°F), with an average of 7°C (44°F). During this month, precipitation is relatively high at 73 mm (2.9 in) over about 11 days, and the humidity sits at 92%. In contrast, February is much harsher, with temperatures plummeting to a minimum of -29°C (-21°F) and an average of -11°C (12°F). The maximum temperature only reaches 8°C (46°F), while precipitation decreases to 33 mm (1.3 in) over 8 days. Notably, February's humidity is slightly higher at 98%, creating a frigid atmosphere. For more detailed information about February weather, check out this link: Jukkasjaervi weather in February.
In September, temperatures average a milder 7°C (44°F), with daily highs reaching up to 21°C (69°F), while lows only dip to -4°C (24°F). The month sees approximately 73 mm (2.9 in) of precipitation over 11 days, and humidity remains high at 92%. In contrast, March experiences much colder conditions, with an average temperature of -6°C (21°F) and maximums only reaching 9°C (48°F). The minimum temperature drops significantly to -27°C (-17°F), and precipitation amounts to 35 mm (1.4 in) over 10 days, accompanied by even slightly higher humidity at 93%. For a detailed look at March weather in Jukkasjaervi, you can check Jukkasjaervi weather in March.
Comparing the weather between September and April reveals significant differences. In September, temperatures range from a chilly -4°C (24°F) at their lowest to a comfortable 21°C (69°F) at their peak, with an average of 7°C (44°F). The month also sees 73 mm (2.9 in) of precipitation over 11 days, coupled with a high humidity of 92%. In contrast, April experiences much colder temperatures, with a minimum of -17°C (1°F), averaging -1°C (30°F), and a maximum of 14°C (58°F). It features significantly less precipitation, only 32 mm (1.2 in) over 7 days, and a slightly lower humidity of 89%. For a more detailed look at April weather, you can visit Jukkasjaervi weather in April.
In comparing the weather between September and May, September tends to be milder with average temperatures reaching 7°C (44°F) and a maximum of 21°C (69°F), while May experiences somewhat cooler average temperatures at 4°C (39°F), despite having a similar maximum of 22°C (73°F). Interestingly, September has a slightly higher minimum temperature of -4°C (24°F) compared to May’s lower minimum of -9°C (17°F). Rainfall is more prominent in September, accumulating 73 mm (2.9 in) over 11 days, whereas May receives less precipitation at 54 mm (2.1 in), also over 11 days. Humidity levels are higher in September at 92%, compared to May’s 84%, indicating a more humid atmosphere in the early autumn months. For more detailed information about the weather conditions in May, you can visit Jukkasjaervi weather in May.
In comparing the weather of September and June, we see notable differences in temperature and humidity. September experiences a broader temperature range, with a minimum of -4°C (24°F) and a maximum of 21°C (69°F), while June has milder temperatures ranging from -1°C (30°F) to a maximum of 26°C (80°F). Additionally, both months have similar levels of precipitation—73 mm (2.9 in) in September and 75 mm (2.9 in) in June—though September has slightly higher humidity at 92% compared to June's 81%. For more specific details on June weather, you can visit Jukkasjaervi weather in June.
In comparing the weather between September and July, we notice significant differences in temperature and conditions. September experiences a cooler range with minimum temperatures dipping to -4°C (24°F) and an average temperature of 7°C (44°F), while July boasts much warmer weather, with minimum temperatures starting at 2°C (36°F) and an average of 14°C (58°F), peaking at a high of 30°C (86°F). Precipitation is also more pronounced in July, with 106 mm (4.2 in) over 13 days compared to September's 73 mm (2.9 in) across 11 days, illustrating how the summer month tends to be wetter. Additionally, humidity levels are slightly higher in September at 92%, compared to 84% in July. For those looking to explore the specific climate in July, more details can be found at Jukkasjaervi weather in July.
September exhibits a notable drop in temperatures compared to August, with minimums plummeting to -4°C (24°F) and a maximum of 21°C (69°F), while August enjoys a more moderate range with minimums at 1°C (34°F) and maximums reaching 28°C (82°F). Precipitation levels also shift; September sees 73 mm (2.9 in) over 11 days, whereas August experiences a higher total of 102 mm (4.0 in) across 15 days. Additionally, humidity in September rises slightly to 92%, compared to August's 88%. For a closer look at the weather specifics, you can explore Jukkasjaervi weather in August.
In September, the weather begins to cool down with temperatures ranging from a minimum of -4°C (24°F) to a maximum of 21°C (69°F), averaging around 7°C (44°F). The month sees a total precipitation of 73 mm (2.9 in) over 11 days and maintains a high humidity level of 92%. In contrast, October experiences a more significant drop in temperature, with minimums falling to -16°C (4°F) and maximums only reaching 13°C (55°F), averaging 0°C (33°F). October also sees increased precipitation of 83 mm (3.2 in) spread over 14 days, alongside a rise in humidity to 96%. This shift in weather contributes to a much colder atmosphere as winter approaches. For more detailed insights, check out Jukkasjaervi weather in October.
In September, temperatures range from a chilly -4°C (24°F) at night to a mild high of 21°C (69°F) during the day, with an average of 7°C (44°F). This month experiences 73 mm (2.9 in) of precipitation over 11 days, accompanied by a relatively high humidity of 92%. In contrast, November sees a dramatic drop in temperatures, with nighttime lows plunging to -28°C (-18°F) and daytime highs barely reaching 7°C (45°F), resulting in an average temperature of -5°C (23°F). Precipitation in November is lower at 44 mm (1.7 in), yet it still occurs over 11 days, along with an even higher humidity level of 97%. For a more detailed insight into the weather during November, check out Jukkasjaervi weather in November.
September and December present stark contrasts in weather conditions. In September, temperatures range from a chilly -4°C (24°F) at night to a mild 21°C (69°F) during the day, with an average of 7°C (44°F). This month experiences about 73 mm (2.9 in) of precipitation over 11 days and a high humidity level of 92%. In contrast, December is significantly colder, with temperatures plummeting to as low as -26°C (-15°F) at night and averaging -8°C (17°F) for the month, peaking at only 4°C (39°F). While December has less precipitation at 49 mm (1.9 in) across 13 days, the humidity soars to a maximum of 100%, often resulting in a more biting cold. For more details about the specific conditions, you can refer to the Jukkasjaervi weather in December.
As September arrives in Jukkasjärvi, the weather shifts notably from the warmth of summer, bringing cooler temperatures and an increase in precipitation. The days are marked by a blend of crisp air and occasional rain, creating a unique atmosphere that contrasts with the balmy days of July and August. While the average temperature hovers around a refreshing 7°C, the transition to autumn becomes palpable with the increasing likelihood of chilly evenings. This month tends to see higher humidity levels as autumn sets in, making the landscape increasingly vibrant and inviting for those who appreciate the beauty of nature in change. For a comprehensive overview of climate details throughout the year, be sure to check Jukkasjaervi Climate.