August Weather in Alta, Sweden

Last updated: August 27, 2025

August in Alta, Sweden offers a delightful blend of summer warmth and refreshing breezes. With maximum temperatures reaching up to 27°C (81°F) and an average of 17°C (63°F), the month invites outdoor exploration amidst stunning landscapes. However, travelers should be prepared for some rain, as precipitation totals around 68 mm (2.7 in) over approximately 12 days, contributing to the region's lush scenery. The humidity level hovers at 77%, creating a pleasant, albeit occasionally muggy, atmosphere perfect for enjoying the vibrant natural beauty of northern Scandinavia.

August Temperature in Alta

In August, Alta, Sweden enjoys a delightful shift as summer wanes, with temperatures reaching a comfortable average of 17°C (63°F). Early in the month, temperatures can range from a cool 8°C (47°F) to a warm 27°C (81°F), offering a perfect blend of warmth for outdoor adventures and cool evenings ideal for stargazing. This period marks a transition into autumn, as the min and max temperatures begin to subtly dip from July's heights. With the vibrant landscape still alive and the days gradually shortening, August is a charming time to experience Alta's natural beauty in a warm yet refreshing atmosphere.

August Weather in Alta: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Alta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alta, August typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec333235404959636356484135
Data source: Temperature data for Alta generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Alta

In August, Alta, Sweden, experiences a notable surge in precipitation, receiving 68 mm (2.7 in) of rain over 12 days. This increase marks a transition from the drier summer months, contributing to a lush landscape as the region shifts towards autumn. Compared to the preceding months, August's rainfall is the highest of the summer season, reflecting a pattern of escalating moisture that continues into September. This uptick not only impacts the vibrant greenery but also sets the stage for the consistently wetter conditions that characterize the fall months. As the year progresses, the shift in precipitation patterns highlights the dynamic climate of this beautiful Arctic landscape.

August Precipitation Trends in Alta

The chart displays monthly precipitation patterns in Alta, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Alta, August typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec433844255044556852765170
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Alta

In August, Alta, Sweden experiences a moderate humidity level of 77%, marking a slight uptick from the drier months of July (74%) and June (76%). This shift signifies the transition from the summer's comfortable climate towards the more humid autumn months, with September expected to rise significantly again to 85%. Interestingly, this month lies amidst a broader trend; humidity levels in Alta tend to peak during the winter months, reaching a high of 90% in both January and November. Overall, the yearly pattern reflects the region's typically humid atmosphere, particularly as the seasons change and temperatures cool.

August Average Humidity in Alta

This chart illustrates the average monthly humidity levels in Alta, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Alta is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%89%85%77%76%74%77%85%89%90%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Alta

In August, Alta experiences a moderate UV Index of 5, a slight decrease from the high levels of summer months like June and July. During this time, outdoor enthusiasts can expect a burn time of about 30 minutes, encouraging a balance of sun enjoyment while remaining mindful of UV exposure. This transition signifies the subtle shift towards the cooler months, yet still allows for enjoyable summer activities. As the days start to shorten, it’s essential to stay informed about the UV Index trends to protect your skin effectively. For detailed information, visit Alta UV Index.

Maximum UV Index Levels in Alta for August

The chart shows the monthly maximum UV Index (UVI) for Alta in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Alta typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123457754211
Data source: Alta August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Alta

Amid the striking landscapes of Alta, Sweden, August shines brightly, contributing 419 hours of sunlight to an already vibrant summer. This month marks a slight dip from the peak brightness of July, which boasts an impressive 488 hours. However, August continues to uphold a generous amount of sunshine, reflecting a gradual transition as summer edges towards fall. As the year progresses, sunlight levels decrease, with September following closely at 312 hours. The gradual shift into autumn is palpable, but August remains a cherished bridge, blending the lingering warmth of summer with the gentle approach of the cooler months ahead.

Monthly Sunshine Duration in Alta: August Highlighted

The August sunshine duration represents the total number of hours Alta experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec71h171h261h366h454h477h488h419h312h219h138h78h
Data source: Alta August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Alta During August

In Alta, Sweden, the likelihood of sunny weather sees a noticeable ebb and flow throughout the year. As we transition from winter to summer, the chance of sunshine climbs steadily, peaking in July at 57%. However, in August, this sunny trend takes a dip to 38%, reflecting a shift as the summer months give way to the onset of fall. Despite the drop, August still enjoys a substantially higher probability of sun compared to the chillier months, particularly January's meager 11%. This gradual yet noticeable fluctuation highlights the dynamic nature of Alta's climate, making August a blend of lingering summer warmth and the early hints of autumn's arrival.

Percentage of Sunny Days in August in Alta

The chart illustrates the percentage of sunny days in Alta throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Alta experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%30%34%49%31%55%57%38%27%30%29%30%
Data source: Alta August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Alta in August

In August, Alta, Sweden experiences a pleasant decline in daylight as the summer days gradually shorten, offering about 15 hours of sunlight. This marks a gentle transition from the long, sun-drenched days of June and July, where residents enjoyed up to 18 hours of daylight. As the season shifts, August serves as a bridge to the upcoming autumn months, with daylight hours still markedly longer than the early winter months, such as November and December, which are characterized by a mere 6 hours of daylight. This decreasing trend in daylight duration from the peak summer months signals changes in both nature and lifestyle, inviting a gradual embrace of autumn's beauty.

Average Daylight Hours in Alta for August

The chart illustrates the variation in daylight duration in Alta throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 59m9h 14m11h 52m14h 33m17h 1m18h 26m17h 40m15h 23m12h 46m10h 7m7h 38m6h 13m
Data source: Alta daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Alta

In August, Alta, Sweden experiences a notable uptick in wind activity, with an average wind speed of 4.5 m/s (10 mph), a refreshing shift from the more tranquil summer months of June and July. This increase suggests a gradual transition towards the brisker winds that characterize the early autumn months, as wind speeds rise steadily in September and October. As the summer warmth begins to wane, the winds rejuvenate the landscape, signaling a vibrant shift in the local weather patterns. This gentle breeze in August not only refreshes the air but also hints at the dynamic changes that lie ahead as the seasons change in this beautiful northern locale.

Average August Wind Speed in Alta

The chart displays monthly wind speed patterns in Alta, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.25.15.14.94.03.53.94.5 m/s4.85.85.35.3
Data source: Alta August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Alta Compares to Other Months

Weather in Alta varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Alta, focusing on differences in temperature, rainfall, humidity, and UV levels.

In August, the weather exhibits a more moderate climate with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 27°C (81°F) and an average of 17°C (63°F). This month also sees significant precipitation of 68 mm (2.7 in) over approximately 12 days, accompanied by a relative humidity of 77%. In stark contrast, January brings much colder temperatures, with a minimum of -15°C (6°F) and a maximum of only 9°C (49°F), averaging around 0°C (33°F). January is also characterized by lower precipitation levels of 43 mm (1.7 in) across about 10 days, though humidity is notably high at 90%. For more detailed information, you can visit Alta weather in January.

August and February present starkly different weather conditions. In August, temperatures range from a minimum of 8°C (47°F) to a comfortable average of 17°C (63°F), reaching up to a pleasant maximum of 27°C (81°F). The month experiences moderate rainfall, with 68 mm (2.7 in) spread over 12 days and a humidity level of 77%, making it relatively warm and humid.

In contrast, February brings much colder temperatures, with a minimum of -12°C (11°F) and a frigid average of 0°C (32°F), peaking at only 9°C (48°F). This month records less precipitation at 38 mm (1.5 in) over 9 days, but the high humidity of 88% makes the cold feel even more biting. For more specific insights into February's weather, you can refer to Alta weather in February.

In comparing the weather of August and March, there are significant differences in temperature and precipitation. August tends to be much warmer, with average temperatures ranging from a minimum of 8°C to a maximum of 27°C, while March experiences colder conditions with temperatures typically ranging from a low of -10°C to a high of 14°C. Additionally, August sees an average precipitation of 68 mm over 12 days, compared to March's 44 mm of precipitation spread over 9 days. Humidity levels are notably high in March at 89%, surpassing August's humidity of 77%. These factors highlight the transition from the warmth of summer to the chill of early spring. For a more detailed look at March weather, you can check Alta weather in March.

When comparing the weather in April and August, notable differences emerge. August enjoys warmer temperatures, with an average of 17°C (63°F), a stark contrast to April's cooler average of only 5°C (40°F). Additionally, August experiences a higher maximum temperature of 27°C (81°F), compared to April’s peak of 17°C (62°F). Precipitation is also more frequent in August, with 68 mm (2.7 in) observed over 12 days, while April sees only 25 mm (1.0 in) across 7 days. Interestingly, humidity levels are slightly higher in August at 77%, compared to 85% in April. For more detailed insights into April weather, you can visit Alta weather in April.

The weather in August typically showcases a warmer climate compared to May, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 27°C (81°F). In contrast, May experiences cooler conditions, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 21°C (69°F). While both months have an identical humidity level of 77%, August tends to be wetter, receiving about 68 mm (2.7 in) of precipitation over 12 days, compared to May's 50 mm (2.0 in) over 9 days. For those interested in exploring detailed weather patterns, Alta weather in May provides valuable insights.

In comparing the weather between June and August, August tends to be warmer with average temperatures reaching 17°C (63°F), whereas June's average temperature is slightly lower at 15°C (60°F). The maximum temperatures in August can escalate to 27°C (81°F), compared to June's peak of 23°C (75°F). While both months experience relatively high humidity, August averages 77% compared to June's 76%. Additionally, precipitation in August is more pronounced, totaling 68 mm (2.7 in) over 12 days, compared to June's 44 mm (1.7 in) over just 7 days. For more specific details, you can check Alta weather in June.

In comparing the weather of August and July, August tends to be slightly warmer, with a maximum temperature of 27°C (81°F) compared to July's 26°C (80°F). The minimum temperatures are fairly close, with August recording a low of 8°C (47°F) slightly cooler than July’s 9°C (48°F). Precipitation in August is higher, with 68 mm (2.7 in) falling over 12 days, while July experiences 55 mm (2.1 in) across 9 days. Humidity also rises in August to an average of 77%, compared to 74% in July. For a more detailed look at weather conditions, you can check Alta weather in July.

August typically experiences warmer temperatures compared to September, with averages around 17°C (63°F) peaking at 27°C (81°F), while September sees a decline, averaging 13°C (56°F) with a maximum of only 22°C (72°F). Precipitation is slightly lower in September at 52 mm (2.0 in) over 10 days, compared to 68 mm (2.7 in) over 12 days in August. Additionally, September tends to be more humid, with levels reaching 85%, while August has a humidity level of 77%. For a closer look at the weather conditions in September, you can visit Alta weather in September.

August and October present quite contrasting weather patterns. In August, temperatures range from a pleasant 8°C (47°F) at night to a warm 27°C (81°F) during the day, with an average of 17°C (63°F). This month experiences some rainfall, with 68 mm (2.7 in) spread over 12 days, and humidity levels at 77%. In contrast, October brings a notable drop in temperatures, with a minimum of 0°C (32°F) and a high of only 16°C (60°F), averaging 9°C (48°F). The month sees slightly more precipitation at 76 mm (3.0 in) over 13 days, along with increased humidity, reaching 89%. For more detailed information, you can check Alta weather in October.

August and November present starkly contrasting weather conditions. In August, temperatures range from a mild 8°C (47°F) in the early morning to a warm 27°C (81°F) during the day, with an average of 17°C (63°F). The month sees a moderate amount of rainfall, totaling 68 mm (2.7 in) over about 12 days, and humidity levels are relatively high at 77%. In sharp contrast, November brings much colder conditions, with temperatures dipping to a minimum of -7°C (20°F) and averaging just 5°C (41°F), peaking at a mere 14°C (57°F). Precipitation slightly decreases to 50 mm (2.0 in) across 11 days, while humidity rises to an even higher 90%. For a more detailed insight into the weather patterns in November, you can check Alta weather in November.

August and December present contrasting weather conditions. In August, temperatures range from a mild 8°C (47°F) to a warm maximum of 27°C (81°F), with an average of 17°C (63°F). Humidity levels are relatively high at 77%, and the month experiences around 68 mm (2.7 in) of precipitation over approximately 12 days. In stark contrast, December is much colder, with temperatures plunging from a minimum of -10°C (14°F) to a maximum of only 8°C (47°F), averaging just 2°C (35°F). Precipitation slightly increases to 70 mm (2.8 in) but occurs over a greater number of days, approximately 15, and humidity rises to 87%. For more details on specific conditions, you can check Alta weather in December.

Compare Alta's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Alta

As August rolls in, Alta experiences a delightful transition from the summer heat. The weather is characterized by milder temperatures, providing an average that is notably comfortable and perfect for outdoor activities. While rainfall is present, with about 12 days of precipitation, it tends to enhance the lush landscapes rather than hinder exploration. With humidity levels at 77%, August strikes a balance between warmth and the refreshing coolness of incoming autumn breezes. This month stands out as a time of change, inviting visitors to embrace the beauty of nature as it prepares for the fall. For more on the local climate, check out Alta Climate.