Last updated: August 27, 2025
Experience the captivating August weather of Interlaken, Switzerland, where the charm of summer meets the beauty of the mountains. With maximum temperatures reaching 28°C (82°F), residents and visitors alike can enjoy warm, sun-drenched days. However, the average temperature hovers around a comfortable 15°C (59°F), providing a pleasant escape from the heat. While temperatures dip to a refreshing minimum of 5°C (41°F) at night, expect some variability as August brings about 203 mm (8.0 in) of rainfall over 18 days, resulting in a humidity level of 80% that adds to the lush, green landscape. Whether you seek adventure or tranquility, Interlaken in August promises an unforgettable experience amidst its stunning scenery.
In August, Interlaken, Switzerland embraces the warmth of summer with temperatures ranging from a minimum of 5°C (41°F) to a comfortable maximum of 28°C (82°F). This month experiences an average temperature of 15°C (59°F), creating ideal conditions for outdoor adventures against the backdrop of stunning alpine scenery. As the hottest month of the year, August marks a delightful transition from the cooler days of spring and early summer, providing visitors with longer daylight hours and vibrant landscapes. The trend of rising temperatures culminates in this peak summer experience, inviting travelers to relish in the beauty of Interlaken's lakes, mountains, and lush green valleys.
In August, Interlaken experiences a significant amount of precipitation, with 203 mm (8.0 in) of rain falling over 18 days. This marks a slight decrease from the more intense summer months of June and July, which recorded higher totals of 225 mm (8.9 in) and 219 mm (8.6 in), respectively. Despite this decline, August remains one of the wetter months, contributing to the lush landscapes that define the region. As summer transitions into autumn, the consistency of rainfall ensures that nature retains its vibrant hues, inviting visitors to explore the scenic beauty of Interlaken amid its ongoing precipitation patterns. Overall, the trend highlights a dynamic shift from the peak summer rains to the more sporadic showers typical of early autumn.
In Interlaken, Switzerland, August typically sees humidity levels at a comfortable 80%, contributing to a pleasant summer atmosphere. This figure is aligned with the general trend of decreasing humidity from the earlier peak months of winter, where levels hover around 92% in January and gradually decrease through the season. As spring unfolds, humidity dips slightly, reaching 80% by May, before stabilizing around the mid-80s% in June and July. Interestingly, a slight increase occurs as summer transitions into fall, with humidity rising again to about 83% in September and then reaching higher levels in October. This pattern reveals that while August offers a respite from the higher humidity of winter, the transition to autumn brings a noticeable uptick, echoing the region's unique climate dynamics.
In August, Interlaken experiences a UV Index of 9, categorizing it as having a very high level of UV radiation, similar to the previous months of June and July. This peak in summer sun means that visitors should be especially cautious, with a burn time of just 15 minutes for those with lighter skin tones. As the season transitions into September, the UV Index begins to decrease, dipping to 7 and transitioning into a high exposure category. With these trends, it’s important for both residents and tourists to keep in mind the protective measures necessary for enjoying the beautiful alpine landscapes while safeguarding their skin. For more detailed insights, check out the Interlaken UV Index.
UV Risk Categories
Amidst the stunning landscapes of Interlaken, August shines brightly with 384 hours of sunshine, making it one of the year's sunniest months. Following a peak in July with 416 hours, the sunshine begins to taper off, yet August still offers plenty of warm, sun-soaked days for outdoor adventures. The transition from the vibrant summer months to the slightly cooler September, which sees a drop to 322 hours, indicates a gradual shift in the seasons. Overall, the trend reveals a lively summer atmosphere in Interlaken, where longer daylight hours create the perfect backdrop for exploring this picturesque Swiss gem.
In August, Interlaken enjoys a 38% chance of sunny weather, making it a favorable time for outdoor enthusiasts to explore the stunning Swiss Alps. This percentage aligns with the relatively moderate summer months of June and July, which both hold the same likelihood of sunshine. As the season transitions into September, the chance of sun remains consistent, indicating that late summer maintains a similar appeal. While August is not the sunniest month in Interlaken, its weather patterns reflect a robust summer trend, offering visitors ample opportunity to soak in the picturesque views amidst the backdrop of the snow-capped peaks and lush greenery.
In Interlaken, Switzerland, August offers a delightful balance of 14 hours of daylight, marking a gradual decline from the summer peak experienced in June and July, which hold steady at 15 hours. This vibrant month sits comfortably between the sun-soaked heights of summer and the softer light of autumn, providing ample time for outdoor exploration. As the days shorten, the transition becomes more noticeable; September sees a drop to 12 hours, leading gradually into the cozy embrace of fall. The consistent increase in daylight from January's 9 hours to the summer months reflects the region's captivating seasonal rhythm, showcasing the beauty of each phase of the year.
In August, the winds in Interlaken, Switzerland tend to be gentle, averaging just 1.3 m/s (3 mph). This slight breeze marks a continuation of a trend seen in the summer months, where wind speeds remain modest, reflecting the calm yet stunning atmosphere of the region. Following a peak in January and February with winds at 1.6 to 1.7 m/s (4 mph), the lighter currents during August create a serene backdrop for the breathtaking views of the lakes and mountains. As the year progresses towards autumn, the wind speeds barely fluctuate, highlighting Interlaken's tranquil charm that invites visitors to revel in its natural beauty without the distraction of blustery conditions.
Weather in Interlaken varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Interlaken, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present stark contrasts in weather, reflecting the seasonal shift. In August, temperatures range from a mild 5°C (41°F) to a maximum of 28°C (82°F), with an average temperature of 15°C (59°F). This summer month also experiences considerable rainfall, totaling 203 mm (8.0 in) over approximately 18 days, accompanied by a humidity level of 80%. In contrast, January is marked by much colder conditions, where temperatures drop significantly, ranging from a chilling -19°C (-1°F) to a maximum of just 9°C (48°F), with an average of -3°C (26°F). January sees less precipitation, totaling 123 mm (4.9 in) over about 12 days, but the humidity remains high at 92%. For more specific details, check out Interlaken weather in January.
August and February present stark contrasts in weather patterns. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F). The month is characterized by high humidity at 80% and significant precipitation of 203 mm (8.0 in) over about 18 days. In contrast, February experiences frigid conditions, with temperatures dipping as low as -18°C (-1°F) and peaking at 14°C (58°F), averaging -1°C (31°F). The humidity is higher at 89%, but precipitation is lower at 103 mm (4.0 in) spread over just 11 days. For more detailed insights, you can check out Interlaken weather in February.
The weather in August is notably warmer compared to March, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 28°C (82°F) and an average of 15°C (59°F). In contrast, March experiences much colder temperatures, with a minimum of -23°C (-9°F) and a maximum of 16°C (60°F), averaging only 2°C (36°F). While August is characterized by higher precipitation, averaging 203 mm (8.0 in) over 18 days, March has less rainfall, totaling 125 mm (4.9 in) over just 15 days. Additionally, both months exhibit high humidity levels, but March is slightly more humid at 87% compared to August's 80%. For more detailed insights, you can check Interlaken weather in March.
When comparing the weather in August and April, notable differences emerge. August typically features milder temperatures, with a minimum of 5°C (41°F), an average of 15°C (59°F), and a maximum of 28°C (82°F). In contrast, April experiences cooler conditions, with temperatures ranging from a minimum of -12°C (10°F) to a maximum of 19°C (67°F), averaging around 5°C (42°F). While August is characterized by higher precipitation levels at 203 mm (8.0 in) over 18 days, April is relatively drier, receiving 94 mm (3.7 in) over just 12 days. Humidity levels are slightly higher in April at 84% compared to 80% in August. For those interested in more detailed information, you can explore Interlaken weather in April.
August and May present quite different weather profiles. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F). This month also sees significant rainfall, with 203 mm (8.0 in) over 18 days, while humidity remains high at 80%. In contrast, May experiences cooler temperatures, with a minimum of -7°C (20°F), an average of 9°C (48°F), and a maximum of 25°C (78°F). The precipitation is slightly lower at 182 mm (7.2 in) across 19 days, but humidity levels are consistent at 80%. For a more detailed look at May's climate, you can visit Interlaken weather in May.
In comparing the weather of August and June, we find notable differences in temperature and precipitation. August experiences a wider temperature range, with a minimum of 5°C (41°F) and a maximum of 28°C (82°F), averaging at 15°C (59°F). In contrast, June, while having a slightly lower average temperature of 14°C (57°F), shows a maximum of 29°C (85°F). June also has higher precipitation levels, totaling 225 mm (8.9 in) over 18 days, compared to August's 203 mm (8.0 in) over the same number of days. Both months have high humidity levels, around 80% in August and 82% in June, contributing to a generally damp atmosphere. For more detailed insights into June weather, you can visit Interlaken weather in June.
In comparing the weather between July and August, both months exhibit similar temperature ranges, with August showing a slight decrease in the maximum temperature, averaging 28°C (82°F) compared to July's 29°C (84°F). The average temperature remains relatively consistent, hovering around 15°C (59°F) to 15°C (60°F). However, August experiences slightly less precipitation than July, recording 203 mm (8.0 in) over 18 days, in contrast to July's 219 mm (8.6 in) under the same number of days. Humidity levels are also comparable, with August at 80% and July at 83%. For more detailed insights into July's climate, you can explore Interlaken weather in July.
August and September in Interlaken showcase a notable transition in weather patterns. August tends to be warmer, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 28°C (82°F) and an average of 15°C (59°F). This month also sees significant rainfall, with 203 mm (8.0 in) spread over 18 days, coupled with a humidity level of 80%. In contrast, September experiences cooler temperatures, dipping to a minimum of 0°C (32°F) and reaching a maximum of 23°C (73°F), with an average of 11°C (53°F). Rainfall decreases to 124 mm (4.9 in) over 14 days, while humidity slightly rises to 83%. This shift marks the transition from summer to fall, resulting in a much more temperate environment. For more details on September weather in the region, visit Interlaken weather in September.
August and October present distinct weather patterns, reflecting the transition from summer to autumn. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F). This month sees significant precipitation, totaling 203 mm (8.0 in) over 18 days, and humidity levels around 80%. In contrast, October experiences a cooler climate, with temperatures dipping to a minimum of -4°C (26°F) and an average of 7°C (45°F), peaking at 19°C (67°F). Although October's precipitation is lower at 138 mm (5.4 in) over 13 days, humidity rises to 90%. For a detailed look at specific weather conditions in October, you can check Interlaken weather in October.
August weather is characterized by warmer temperatures, with averages around 15°C (59°F) and maximums reaching up to 28°C (82°F). However, it also brings considerable rainfall, totaling 203 mm (8.0 in) over approximately 18 days, accompanied by an average humidity of 80%. In contrast, November experiences colder temperatures, with an average of just 2°C (35°F) and maximums peaking at 18°C (64°F), while the minimum can drop to -10°C (13°F). Precipitation in November is significantly lower, at 97 mm (3.8 in) over about 13 days, but humidity rises to 88%. For a detailed look at the weather conditions in November, you can visit Interlaken weather in November.
August and December exhibit strikingly different weather patterns. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F). This month is characterized by high humidity at 80% and notable precipitation, totaling 203 mm (8.0 in) spread over 18 days. In contrast, December experiences a much colder climate, with temperatures ranging from a brisk -13°C (8°F) to a maximum of 9°C (49°F), averaging -2°C (29°F). Precipitation levels are slightly lower at 175 mm (6.9 in), occurring over 17 days, but humidity is higher at 90%. For more details on December weather, you can check Interlaken weather in December.
August in Interlaken is a vibrant month, showcasing a warm and inviting climate that stands out amidst the cooler seasons. With temperatures reaching a maximum of 28°C (82°F) and an average of 15°C (59°F), this month offers a pleasant escape for outdoor enthusiasts. However, it’s also characterized by relatively high humidity and frequent rainfall, with precipitation occurring on 18 days throughout the month. This blend of warmth and moisture not only enhances the lush landscapes but also means that visitors should be prepared for a few rainy spells. For a deeper understanding of how August weather compares to other months, check out Interlaken Climate.