Last updated: August 27, 2025
In Arosa, Switzerland, August weather presents a fascinating blend of temperatures and conditions. With a maximum reaching up to 23°C (74°F), the days can be pleasantly warm, while the average temperature hovers around 11°C (52°F). However, even in the summer, the minimum can drop to a cool 0°C (31°F), reminding visitors of the region's alpine charm. August is also characterized by significant precipitation, with 197 mm (7.8 in) of rainfall spread over approximately 20 days, leading to a humidity level of around 80%. This combination of elements creates a vibrant atmosphere, perfect for outdoor enthusiasts and nature lovers alike!
In August, Arosa, Switzerland, showcases a delightful summer ambiance with temperatures that begin to warm up significantly. The minimum temperature hovers around 0°C (31°F), while the average is a comfortable 11°C (52°F). With a maximum reaching 23°C (74°F), it’s a perfect time for outdoor adventures amidst the stunning Alpine backdrop. This month marks a notable peak in warmth compared to the preceding months, reflecting a clear trend towards milder, inviting weather as summer unfolds. Travelers can relish in the balance of pleasant days and cool evenings, making August an ideal time to experience the beauty of Arosa in all its sunny splendor.
In Arosa, Switzerland, August stands out as the wettest month of the year, accumulating a notable 197 mm (7.8 in) of precipitation over 20 days. This significant rainfall marks a peak following a progressive increase from the drier winter months, with precipitation steadily rising from 92 mm in January to a lush 161 mm in May. The summer months are characterized by a consistent pattern of rain, with July reaching 152 mm before August’s deluge. This trend showcases a transition into late summer, where the landscape flourishes under the abundant rainfall, nurturing the stunning alpine environment that Arosa is renowned for. As the season shifts to autumn in September, precipitation slightly decreases to 134 mm, indicating a gradual retreat from the summer's peak rainfall.
In Arosa, Switzerland, August delivers a refreshing respite from the summer heat, with humidity levels dropping to a comfortable 80%. This marks a notable decline from the preceding months, where July's humidity was slightly higher at 83%. The trend of decreasing humidity from May through August suggests a gradual shift towards more pleasant conditions, inviting both locals and tourists to enjoy the breathtaking alpine scenery. As the year progresses, humidity levels rise again in the fall, reaching 83% in September and spiking back to 90% by October. Overall, Arosa's humidity dynamics reveal a distinct pattern that enhances the region’s appeal, particularly during the summer months.
In August, Arosa, Switzerland sees a UV Index of 9, maintaining its very high exposure category for the month, similar to the peak summer months of June and July. The consistent burn time of just 15 minutes highlights the importance of sun protection during this period. As summer transitions toward fall, it's interesting to note that the UV Index has gradually decreased from July's peak of 10, yet remains significantly elevated compared to the earlier months of the year. With progressive reduction in UV levels noted in September, August serves as a climactic point in the seasonal sun exposure trends. Whether you’re hiking in the stunning alpine scenery or enjoying outdoor activities, it's essential to stay aware of UV levels. For more detailed information, visit Arosa UV Index.
UV Risk Categories
In August, Arosa, Switzerland, basks in a delightful 368 hours of sunshine, making it one of the sunniest months of the year. As we explore the seasonal trends, it's evident that the townsfolk and visitors can savor the warmth and light of summer as the days gradually shorten after the peak of July with its impressive 408 hours. This vibrant month follows a trend of increasing sunshine from January's modest 173 hours, reaching its pinnacle in the height of summer, and then tapering down into the cooler months of September and October. Arosa's weather paints a portrait of seasonal change, where sunshine hours mirror the gentle ebb and flow of winter's retreat and summer's embrace.
In Arosa, Switzerland, the month of August presents a 30% chance of sunny weather, which is slightly lower than the summer peaks seen in June and July at 34% and 31%, respectively. This decline suggests a gradual transition towards the autumn months, as the likelihood of sunshine dips from the earlier summer vibrancy. Notably, August's sunshine probability mirrors that of May, indicating a balanced climatic shift rather than a sharp departure from the summer’s warmth. As the season progresses, sunshine opportunities seem to hover in a consistent range, highlighting Arosa's delightful but somewhat unpredictable summer charm.
In Arosa, Switzerland, August offers a delightful retreat for sun-seekers with approximately 14 hours of daylight, gradually tapering off from the summer peak. As the year unfolds, daylight duration increases from 9 hours in January to a zenith of 15 hours from May to July, offering long, bright days ideal for outdoor activities. Following the golden summer months, August signals the beginning of a gentle decline in daylight, transitioning into the more subdued months of September and October. This pattern not only showcases the enchanting rhythm of the seasons but also highlights Arosa's vibrant summer allure before the cozy embrace of autumn.
In August, the wind in Arosa, Switzerland, gently whispers at an average speed of 1.3 m/s (3 mph), bringing a slight respite as summer begins to wind down. This marks a small dip compared to the slightly breezier months of May and October, which each feature winds reaching up to 1.6 m/s (4 mph). Overall, the trends indicate a consistent, mild breeze throughout the year, with January through July hovering around the same tranquil 1.4 to 1.6 m/s range. As the season shifts toward September, the wind speed remains steady at 1.3 m/s, suggesting a seamless transition towards autumn while enveloping the picturesque landscape of Arosa in its serene embrace.
Weather in Arosa varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Arosa, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, temperatures in Arosa range from a minimum of 0°C (31°F) to a maximum of 23°C (74°F), with an average of 11°C (52°F). The month experiences significant precipitation, totaling 197 mm (7.8 in) over approximately 20 days, and humidity levels are around 80%. In contrast, January brings much harsher conditions, with temperatures plummeting to a minimum of -30°C (-21°F) and averaging -9°C (16°F), peaking at just 5°C (40°F). Although precipitation is lower in January at 92 mm (3.6 in) over 11 days, humidity is slightly higher at 92%. For more detailed insights into the January weather, you can check Arosa weather in January.
August and February present stark contrasts in weather. In August, temperatures range from a minimum of 0°C (31°F) to a maximum of 23°C (74°F), with an average of 11°C (52°F). This month experiences considerable rainfall, totaling 197 mm (7.8 in) over 20 days, and humidity levels hover around 80%. In contrast, February is characterized by much colder temperatures, with a minimum of -26°C (-14°F), an average of -6°C (22°F), and a maximum of 9°C (48°F). Precipitation is also lower in February, at 65 mm (2.6 in) over 12 days, while humidity increases slightly to 89%. For a deeper understanding of February’s weather nuances, you can refer to Arosa weather in February.
August and March present stark contrasts in weather. In August, temperatures range from a chilly minimum of 0°C (31°F) to a pleasant maximum of 23°C (74°F), with an average of 11°C (52°F). The month is characterized by significant rainfall, with 197 mm (7.8 in) of precipitation spread over 20 days, and humidity levels hovering around 80%. In contrast, March experiences much colder conditions, with temperatures dipping to a minimum of -26°C (-14°F) and averaging -3°C (27°F), while reaching a maximum of 11°C (52°F). Precipitation is notably lower at 92 mm (3.6 in) over 16 days, accompanied by even higher humidity at 87%. For more details about the weather specifically during March, you can visit Arosa weather in March.
The weather in August is notably warmer and more humid compared to April. In August, temperatures range from a minimum of 0°C (31°F) to a maximum of 23°C (74°F), with an average of 11°C (52°F). This month also sees significant rainfall, with 197 mm (7.8 in) of precipitation over approximately 20 days. In contrast, April experiences much colder temperatures, with lows of -24°C (-11°F) and highs reaching only 15°C (59°F), resulting in an average temperature of 1°C (34°F). While April has less precipitation at 87 mm (3.4 in) over 14 days, its humidity is relatively high at 84%. For more detailed information on April weather patterns, you can check Arosa weather in April.
In comparing the weather between August and May, August generally offers milder temperatures, with minimums around 0°C (31°F) and averages of 11°C (52°F), while May tends to be cooler, exhibiting a minimum of -13°C (9°F) and an average of 5°C (41°F). Both months experience significant precipitation, but August sees more rain with 197 mm (7.8 in) over 20 days compared to May's 161 mm (6.3 in) across 23 days. Humidity remains consistent at 80% for both months, contributing to a damp atmosphere. For more detailed insights, you can check out Arosa weather in May.
When comparing the weather in August and June, we notice some notable differences. August generally has a slightly milder temperature range, with a minimum of 0°C (31°F) and a maximum of 23°C (74°F), while June features a cooler minimum of -2°C (28°F) and a warmer maximum of 26°C (79°F). Precipitation levels are also higher in August, totaling 197 mm (7.8 in) over 20 days, compared to June's 147 mm (5.8 in) spread over 19 days. Humidity is relatively consistent, with August at 80% and June slightly higher at 82%. For more detailed information, you can check Arosa weather in June.
When comparing the weather in August to that of July, we can see several notable differences. August typically features slightly cooler temperatures, with a minimum of 0°C (31°F) compared to July's 2°C (36°F). The average temperature remains consistent at 11°C (52°F) for both months, while the maximum temperature in August is 23°C (74°F), which is a couple of degrees lower than July's 25°C (78°F). Precipitation levels rise significantly in August, reaching 197 mm (7.8 in) over 20 days, compared to July's 152 mm (6.0 in) over the same number of days. Both months experience high humidity, though August is marginally lower at 80% compared to July's 83%. For a more detailed look at July weather, check out Arosa weather in July.
August generally presents warmer temperatures with a minimum of 0°C (31°F) and an average of 11°C (52°F), peaking at a maximum of 23°C (74°F). The month sees significant rainfall, totaling 197 mm (7.8 in) over about 20 days, coupled with a humidity level of 80%. In contrast, September experiences a notable drop in temperatures, with minimums reaching as low as -11°C (13°F) and an average of 7°C (46°F). The month remains fairly wet, though with less overall precipitation at 134 mm (5.3 in) over 16 days, and slightly higher humidity at 83%. For a detailed look at the weather during September in Arosa, check out this link: Arosa weather in September.
August and October present quite a contrast in weather conditions. In August, the temperatures are generally milder, ranging from a minimum of 0°C (31°F) to a maximum of 23°C (74°F), with an average of 11°C (52°F). However, it also sees significant rainfall, with 197 mm (7.8 in) spread across about 20 days, leading to a humidity level of 80%. In contrast, October experiences cooler temperatures, where the minimum drops to -9°C (16°F) and the maximum reaches only 16°C (61°F), averaging at 3°C (39°F). Precipitation decreases to 133 mm (5.3 in) over about 12 days, but humidity rises to 90%, contributing to a crisper feel in the air. For a closer look at how October weather unfolds in Arosa, you can refer to this link: Arosa weather in October.
August and November display stark contrasts in weather conditions. In August, temperatures range from a minimum of 0°C (31°F) to a pleasant maximum of 23°C (74°F), accompanied by considerable precipitation of 197 mm (7.8 in) over 20 days, and humidity levels at 80%. This month often brings warm, summer-like days, despite the frequent rain.
In contrast, November experiences much colder temperatures, where they can dip as low as -21°C (-5°F) with an average of -3°C (27°F) and peak at 12°C (55°F). Precipitation is also lower at 103 mm (4.0 in) spread over 13 days, but humidity increases slightly to 88%. The transition from August to November marks a shift to colder, more wintry conditions as winter approaches. For a closer look at November weather in Arosa, you can refer to Arosa weather in November.
In August, the weather is typically mild and pleasant, with temperatures ranging from a minimum of 0°C (31°F) to a maximum of 23°C (74°F) and an average of 11°C (52°F). This month experiences significant precipitation, averaging 197 mm (7.8 in) over about 20 days, contributing to the high humidity of 80%. In contrast, December brings much colder conditions, with temperatures dropping significantly, ranging from a min of -27°C (-17°F) to a max of 4°C (40°F). The average temperature for December hovers around -7°C (19°F). While there is less precipitation at 129 mm (5.1 in) spread across 16 days, the humidity is notably high at 90%. The stark difference between the warm, wet August and the frigid, dry December highlights the dramatic seasonal shifts in this region. For more insights on the winter climate, you can check out Arosa weather in December.
As summer reaches its peak, August in Arosa is characterized by a delightful mix of warm days and cooler nights, setting it apart from the rest of the year. While temperatures can soar to a pleasant 23°C (74°F), the average dips to a refreshing 11°C (52°F), allowing for both enjoyable afternoons and brisk evenings. Compared to the wettest months earlier in the season, August sees a notable increase in humidity at around 80%, leading to about 20 days of precipitation that tenderly nourishes the lush alpine landscape. This blend of warmth and moisture creates a beautiful tapestry of conditions for outdoor enthusiasts and nature lovers alike. To explore more about what to expect in Arosa's climate, check out Arosa Climate.