Last updated: August 27, 2025
In August, Rheinfelden, Switzerland, experiences varying temperatures that create a rich climate tapestry. Daytime highs can reach a sizzling 34°C (94°F), while nights cool down to a refreshing 7°C (44°F), resulting in a comfortable average of 20°C (68°F). This month is characterized by moderate precipitation, with 115 mm (4.5 in) of rain spread over 15 days, contributing to a humidity level of 80%. Whether basking in the warm sun or enjoying the occasional rain shower, August in Rheinfelden offers a unique blend of summer warmth and refreshing breezes.
In Rheinfelden, Switzerland, August brings a delightful balance of warmth and coolness, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 34°C (94°F). The average temperature sits comfortably at 20°C (68°F), making it one of the warmest months of the year. This marks a notable increase from the cooler temperatures experienced in previous months, such as July, which also enjoyed highs of 36°C (98°F). As summer begins to wind down, visitors can expect pleasant days perfect for outdoor activities, while the cooler nights invite a refreshing conclusion to the long sunny days. Overall, August is a vivid representation of summer in Rheinfelden, characterized by a vibrant climate that encourages both exploration and relaxation amidst stunning scenic views.
In August, Rheinfelden experiences a healthy 115 mm (about 4.5 in) of rainfall over 15 days, continuing the region's trend of relatively consistent precipitation throughout the summer months. This amount is slightly lower than the preceding months of June and July, which saw 120 mm and 122 mm respectively, but reflects a typical late-summer pattern where rainfall begins to taper off as the season transitions into autumn. Interestingly, May stands out with the highest precipitation of the year at 126 mm, creating a stark contrast to the drier months that follow. Overall, August maintains a substantial level of rainfall, contributing to the lush landscapes that characterize this charming Swiss town.
In Rheinfelden, Switzerland, the humidity levels in August settle comfortably at 80%, marking a slight dip compared to the sweltering summer months of June and July, which hover around 82% and 83% respectively. This pattern reflects a gradual decline in humidity as the seasons transition from the heat of summer to the cooler embrace of autumn. Following August, humidity begins to rise again in September at 83%, before soaring to 90% by October. Overall, while August offers a respite from the higher humidity peaks of the preceding months, it still retains a notable moisture level, characteristic of the region's climate throughout the year.
In August, Rheinfelden, Switzerland, experiences a UV Index of 8, indicating a very high exposure risk that can lead to sunburn in just 15 minutes. This marks a slight dip from the peak Index of 9 seen in both June and July, yet it still demands caution for outdoor enthusiasts. As summer wanes, the UV Index begins to trend downwards in September, shifting to a high category with a safer burn time of 25 minutes. It's essential to remain vigilant during this month to protect your skin from harmful UV rays. For more detailed information, check out the Rheinfelden UV Index.
UV Risk Categories
August in Rheinfelden, Switzerland, is a vibrant month that radiates warmth and sunlight, with 381 hours of sunshine gracing the skies. This marks a subtle decline from the peak summer highs of July, which boasts an impressive 413 hours. However, August still benefits from a wealth of daylight, sustaining the vitality of the season. The preceding months showcase a steady increase in sunshine, starting from the chilly 136 hours in January and blossoming to the summer apex. As the days gradually shorten leading into autumn, Rheinfelden embraces the last vestiges of summer, inviting both locals and visitors to revel in its radiant beauty before the crispness of fall sets in.
In Rheinfelden, Switzerland, August offers a 39% chance of sunny weather, positioning it as a transitional month in the summer season. While this probability is slightly higher than the cooler summer months of June and July, it still reflects the unpredictable nature of late summer weather. Interestingly, preceding August, the optimism for sunshine peaks in April at 51%, suggesting that as summer progresses, chances tend to fluctuate. Moreover, the likelihood of sun takes a noticeable leap in September, rising to 43%, hinting that the warmth can linger a little longer. Overall, while August may not guarantee clear skies, it holds promise for those seeking to bask in the late summer sun.
In Rheinfelden, Switzerland, the rhythm of daylight unfolds throughout the year, showcasing a striking progression from the depths of winter to the heights of summer. By August, residents enjoy a generous 14 hours of daylight, though it marks a gradual decline from the peak of 15 hours seen in the preceding summer months. This month serves as a transitional period, hinting at the impending shorter days of autumn, as daylight diminishes to 12 hours in September. The trend reveals a clear pattern: from the glimmers of spring in March at 11 hours, daylight steadily increases, reaching its zenith in the vibrant summer months before naturally receding as the year draws to a close.
In August, the winds in Rheinfelden, Switzerland, calm to an average speed of 1.9 m/s (4 mph), mirroring the gentle breezes of both July and October. This marks a noticeable drop from the slightly stronger currents experienced in the spring and early summer months, where wind speeds were consistently higher, peaking at 2.7 m/s in May. As the summer progresses, the winds tend to soften, indicating a transition into the quieter, cooler autumn season. The pattern of diminishing breezes during the warm months is perhaps emblematic of the serene and relaxed atmosphere that envelops Rheinfelden during this time, inviting both locals and visitors to bask in the tranquility of late summer.
Weather in Rheinfelden varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Rheinfelden, focusing on differences in temperature, rainfall, humidity, and UV levels.
August and January present strikingly contrasting weather patterns. In August, temperatures can soar from a minimum of 7°C (44°F) to a maximum of 34°C (94°F), making it a warm and humid month with an average temperature of 20°C (68°F) and significant precipitation of 115 mm (4.5 in) over 15 days. In contrast, January experiences much colder conditions, with temperatures ranging from a frigid minimum of -13°C (8°F) to a maximum of 17°C (62°F), and an average temperature of just 1°C (35°F). Although January has lower overall precipitation at 89 mm (3.5 in) across 12 days, the humidity is notably high at 92%. For further details on January weather, you can check Rheinfelden weather in January.
August and February present contrasting weather patterns. In August, temperatures range from a cool 7°C (44°F) to a scorching 34°C (94°F), with an average of 20°C (68°F) and a higher humidity level of 80%. This month experiences significant precipitation, with around 115 mm (4.5 in) falling over about 15 days, making it a generally humid and wet period. In stark contrast, February features much colder temperatures, with a minimum of -13°C (9°F) and a maximum of 19°C (66°F), averaging just 4°C (39°F). Although it receives less precipitation at 75 mm (2.9 in) over 12 days, it faces even higher humidity levels at 89%. These differences highlight the drastic seasonal changes experienced in this region. For more details, visit Rheinfelden weather in February.
August and March present contrasting weather patterns. In August, temperatures range from a minimum of 7°C to a maximum of 34°C, with an average temperature of 20°C, making it a warm month. However, it also sees significant rainfall, with 115 mm of precipitation over 15 days and a humidity level of 80%. In contrast, March experiences much colder conditions, with temperatures ranging from -12°C to 21°C, and an average of only 6°C. While it has slightly less precipitation at 87 mm over 14 days, the humidity is slightly higher at 87%. For more detailed insight into March weather, check out Rheinfelden weather in March.
When comparing the weather in August and April, one can see a significant shift in temperatures and precipitation. In August, the minimum temperature is a mild 7°C (44°F), with an average of 20°C (68°F) and a peak of 34°C (94°F), making it markedly warmer than April, which starts with a minimum of -4°C (26°F) and averages just 10°C (50°F), with a maximum of 26°C (80°F). Additionally, August experiences more rainfall, with 115 mm (4.5 in) over about 15 days, compared to April’s 59 mm (2.3 in) over 10 days. Humidity levels are fairly similar, with August at 80% and April slightly higher at 84%. For a closer look at April's weather specifics, you can visit Rheinfelden weather in April.
When comparing the weather in May and August, we can see some notable differences. August generally presents warmer conditions, with average temperatures reaching 20°C (68°F) and a maximum of 34°C (94°F), while May has a cooler average of 14°C (57°F) and a maximum of 31°C (87°F). Both months experience relatively high humidity, sitting at 80%, which contributes to a muggy feel. Precipitation is slightly lower in August at 115 mm (4.5 inches) over about 15 days, compared to May's 126 mm (5.0 inches) over 17 days. For a more detailed look at the weather patterns, you can check out Rheinfelden weather in May.
When comparing the weather in August and June, both months exhibit similar maximum temperatures, with August averaging 20°C (68°F) and June slightly cooler at 19°C (66°F). However, August typically sees a higher minimum temperature of 7°C (44°F) compared to June's 6°C (43°F). Precipitation levels are also fairly close, with August receiving 115 mm (4.5 in) over 15 days and June slightly wetter at 120 mm (4.7 in) across 16 days. Humidity in August averages around 80%, which is marginally lower than June's 82%, indicating that both months are quite humid but with August being a touch more comfortable. For more details, you can check Rheinfelden weather in June.
In comparing the weather between July and August, August generally features slightly cooler temperatures, with a minimum of 7°C, compared to July's minimum of 9°C. Both months share a similar average temperature of around 20°C, but July reaches a higher maximum of 36°C, while August peaks at 34°C. Precipitation levels are quite close as well, with July recording 122 mm and August slightly lower at 115 mm, both occurring over 15 days. Humidity remains relatively high in both months, with July at 83% and August at 80%. For a detailed look at July weather, you can visit Rheinfelden weather in July.
In August, the weather tends to be warmer, with average temperatures around 20°C (68°F) and maximum highs reaching up to 34°C (94°F). The month experiences significant precipitation, totaling 115 mm (4.5 in) over approximately 15 days, and maintains a high humidity level of 80%. In contrast, September brings cooler temperatures, with a noticeable drop in the average to about 16°C (61°F) and maximums of 30°C (86°F). Precipitation also decreases to 69 mm (2.7 in), spread over around 12 days, while humidity rises slightly to 83%. For more detailed insights regarding September weather, you can check the link: Rheinfelden weather in September.
In August, the weather is generally warmer, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 34°C (94°F) and an average of 20°C (68°F). The month also experiences considerable precipitation, totaling 115 mm (4.5 inches) over about 15 days, and humidity levels hover around 80%. In contrast, October brings cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 24°C (75°F), averaging at 11°C (52°F). Despite having slightly less precipitation at 89 mm (3.5 inches) over 13 days, October sees a higher humidity level at 90%. For more details, you can check Rheinfelden weather in October.
August and November present contrasting weather patterns. In August, temperatures range from a minimum of 7°C (44°F) to a maximum of 34°C (94°F), with an average of 20°C (68°F). The month experiences significant precipitation, totaling 115 mm (4.5 in) over about 15 days, while humidity remains high at 80%. In comparison, November sees much cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 21°C (70°F), averaging around 5°C (42°F). Precipitation decreases to 73 mm (2.9 in) over 12 days, with a slight increase in humidity at 88%. For more detailed information, you can check Rheinfelden weather in November.
August and December present a stark contrast in weather conditions. In August, temperatures range from a mild 7°C (44°F) at night to a sweltering 34°C (94°F) during the day, with an average of 20°C (68°F). This month sees 115 mm (4.5 in) of precipitation over about 15 days, coupled with a humidity level of 80%, making it feel quite warm. In contrast, December brings much cooler temperatures, with a minimum of -5°C (24°F), an average of 3°C (38°F), and a maximum of 14°C (58°F). The precipitation slightly increases to 124 mm (4.9 in) across 18 days, and humidity rises to 90%, contributing to a chillier atmosphere. For more details about December weather, you can check Rheinfelden weather in December.
August in Rheinfelden marks a vibrant transition, with temperatures reaching their peak and an average that stands out against the cooler months. The warmth envelops the city, occasionally soaring to maximums of 34°C (94°F), providing plenty of sunny days for outdoor activities. However, this month also sees increased humidity and a tendency for frequent rainfall, with around 15 days of precipitation that contribute to a striking average of 80% humidity. Compared to the drier and cooler summer months, August's blend of heat and moisture creates a unique atmosphere, perfect for summer festivals and enjoying the lush landscapes. For a comprehensive look at weather patterns throughout the year, visit Rheinfelden Climate.