Last updated: February 24, 2025
In August, Calistoga experiences a vibrant summer, where temperatures soar to a maximum of 41°C (106°F), making it a perfect time for outdoor adventures. The average temperature rests comfortably at 23°C (73°F), while nights cool to a refreshing minimum of 11°C (52°F). Notably, precipitation remains absent, with 0 mm recorded over the month, allowing for uninterrupted exploration and enjoyment. Humidity levels at 66% add a touch of warmth to the summer air, creating an inviting atmosphere for both locals and visitors alike.
In August, Calistoga experiences summer in full swing, with temperatures typically ranging from a minimum of 11°C (52°F) to a maximum of 41°C (106°F). The month boasts an average temperature of 23°C (73°F), making it one of the warmest times of the year. This trend of rising heat is evident as August follows the already high temperatures of July, which hovers around 40°C (105°F) at its peak. With the sun blazing and the landscape vibrant, visitors can expect long, sunny days perfect for exploring the region’s renowned vineyards and natural hot springs. As the month progresses, temperatures begin to edge down, hinting at the transitioning months ahead, but August remains a time for enjoying the summer's last hurrah in this charming Californian town.
In Calistoga, August stands out as a stark contrast to the wetter months preceding it, with no recorded precipitation and a complete absence of rain days. This dry spell follows a gradual decline in rainfall throughout the summer, peaking in January and February with 137 mm and 141 mm respectively, and tapering dramatically to just 2 mm in June. This trend suggests that as summer settles in, Calistoga experiences a significant reduction in moisture, creating a dry and warm climate ideal for outdoor activities. As August concludes, the landscape remains parched, setting the stage for a slight uptick in precipitation come September, hinting at the transition toward the wetter months of autumn.
In Calistoga, United States, August marks a notable shift in humidity trends, with levels dipping to 66%, the lowest point of the year. This decline in humidity is a continuation of a gradual decrease that begins in July, where the humidity sits at 70%. As the summer months progress, from 86% in January to 84% in February and 83% in March, the air gradually becomes drier, highlighting the transition to drier seasonality. Following August, humidity slightly rebounds in September to 68%, showing how the region begins to prepare for the autumn months, but overall, the trend reflects a significant drop through the heart of summer.
In August, Calistoga experiences a UV Index of 10, indicating a very high exposure level that demands caution under the sun. As the summer reaches its peak, the burn time drops to just 15 minutes, similar to the previous month of July. This trend of rising UV levels from the beginning of the year highlights the importance of sun safety, as January starts off with a moderate UV Index of 3. Even as summer fades into autumn, September maintains a high UV Index of 9, ensuring that sun protection remains essential. Visitors and residents alike should stay informed about these fluctuations to enjoy the beautiful outdoors safely. For more insights, check out Calistoga UV Index.
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In August, Calistoga basks in an impressive 356 hours of sunshine, encapsulating the essence of summer days that linger just a bit longer. As the year progresses, the trend showcases a steady increase in sun exposure, peaking in July with 394 hours before gently tapering off. From the cold, dim days of January, which only see 141 hours, residents and visitors can truly appreciate how the sunshine transforms the landscape as spring deepens and summer reigns. By August, the warmth of the sun fosters an inviting atmosphere, while the sunshine begins to wane in September, with 314 hours still offering a delightful farewell to summer. This vibrant cycle not only highlights nature's rhythm but offers a captivating backdrop for all who seek to enjoy Calistoga's rich offerings.
In Calistoga, United States, August shines brightly, boasting an 88% chance of sunny weather. This high likelihood follows a trend of increasingly sunny days as the year progresses, with the probability rising from a modest 37% in January to an impressive 85% in July. As summer peaks, August maintains this sunny disposition, echoing June's favorable weather patterns. Following this month, September experiences a slight dip to 80%, signaling the gradual transition into autumn, yet still retaining a generous supply of sunshine. With such promising statistics, August truly stands out as a top choice for sun-seekers.
In Calistoga, United States, the daylight duration experiences a dynamic shift throughout the year, peaking during the sun-drenched months of May to July with 14 hours of daylight. As August arrives, the days begin to wane slightly, transitioning to 13 hours of daylight, a gentle reminder that summer is drawing to a close. This gradual decrease continues into September, where daylight drops to 12 hours, marking the onset of fall. The trend reveals a clear seasonal rhythm, with shorter days in winter and longer, sun-filled days in summer, offering a beautiful backdrop to the ever-changing landscape of Calistoga.
In Calistoga, the August wind embraces a gentle rhythm, contributing to its idyllic summer landscape. With an average wind speed of 1.8 m/s (4 mph), August mirrors the quieter breezes of both January and September, showcasing a contrast to the slightly more dynamic winds of May and March. Throughout the year, wind speeds oscillate modestly, peaking at 2.5 m/s (6 mph) in May and dipping to 1.4 m/s (3 mph) in November. This gentle pattern hints at a tranquil summer atmosphere, ideal for leisurely afternoons and cool vineyard explorations, while also signaling a transition towards the stillness of fall. As the year winds down, Calistoga’s breezes maintain a comforting consistency that enhances the serene charm of this beautiful region.
The weather in Calistoga changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Calistoga and find detailed weather information for every month.
August and January showcase stark contrasts in weather. August boasts warm temperatures, with minimums around 11°C (52°F), average highs of 23°C (73°F), and peaks reaching up to 41°C (106°F). With zero precipitation and a humidity level of 66%, it’s a dry and hot month. In contrast, January experiences much cooler conditions, featuring minimum temperatures of -1°C (30°F) and average temperatures around 9°C (49°F), with maximums reaching 25°C (77°F). The month is considerably wetter, receiving 137 mm (5.4 in) of precipitation over eight days, and higher humidity at 86%. For a detailed overview of January weather, you can check Calistoga weather in January.
August and February present stark contrasts in weather. August boasts warm temperatures, with an average of 23°C (73°F) and highs reaching up to 41°C (106°F), complemented by a dry climate featuring no precipitation. In contrast, February experiences much cooler conditions, with average temperatures around 10°C (51°F) and highs of 27°C (80°F), alongside significant rainfall totaling 141 mm (5.6 inches) across about seven days. The humidity is notably higher in February at 84%, compared to August's 66%. For a more detailed look at February's weather, you can visit Calistoga weather in February.
August and March exhibit strikingly different weather patterns. In August, temperatures soar with a minimum of 11°C (52°F) and can reach a scorching maximum of 41°C (106°F), while experiencing no precipitation and a moderate humidity level of 66%. In contrast, March presents cooler conditions, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 29°C (85°F). This month is also marked by significant rainfall, totaling 92 mm (3.6 in) over approximately 10 days, and higher humidity at 83%. Overall, while August embraces the heat and dryness, March is characterized by cooler temperatures and dampness, making them each unique in their respective climates. For more detailed information, you can visit Calistoga weather in March.
August and April offer contrasting weather experiences. In August, temperatures soar, with a minimum of 11°C (52°F) and a maximum reaching up to a scorching 41°C (106°F), accompanied by low humidity at 66% and no recorded precipitation. In stark contrast, April features milder temperatures, ranging from a minimum of 2°C (36°F) to a maximum of 33°C (92°F), along with increased humidity at 80% and an average of 39 mm (1.5 in) of rainfall over five days. For more details on April weather, you can check out Calistoga weather in April.
Comparing the weather in August to that in May reveals some notable differences. August features much warmer temperatures, with averages around 23°C (73°F) and highs reaching up to 41°C (106°F), while May's average temperature is lower at 18°C (64°F), peaking at 37°C (99°F). Precipitation is virtually absent in August, with no recorded rainfall, whereas May sees about 23 mm (0.9 in) of precipitation over three days. Additionally, the humidity in August is slightly lower at 66%, compared to a higher 80% in May, contributing to the overall comfort levels during these months. For more details, you can check Calistoga weather in May.
In August, the weather is characterized by a warm average temperature of 23°C (73°F), with a slightly higher minimum temperature of 11°C (52°F) compared to June's minimum of 9°C (49°F). Both months experience high maximum temperatures, with August peaking at 41°C (106°F) and June just slightly higher at 42°C (107°F). Interestingly, August sees no recorded precipitation, while June has minimal rainfall at 2 mm (0.1 in), making August a drier month overall. Humidity levels are also slightly lower in August at 66% compared to June's 76%. For more detailed information, you can check out Calistoga weather in June.
In August, temperatures range from a minimum of 11°C (52°F) to a maximum of 41°C (106°F), with an average of 23°C (73°F), while July experiences slightly higher minimum temperatures and a peak of 40°C (105°F) but maintains the same average. Both months are characterized by dry conditions, recording no precipitation, and a lack of rainy days. However, humidity levels are slightly lower in August at 66% compared to July's 70%. For more detailed information, you can check Calistoga weather in July.
August weather features warmer temperatures, with a minimum of 11°C (52°F) and an average of 23°C (73°F), peaking at a scorching 41°C (106°F). Notably, it is a dry month, recording no precipitation. In contrast, September sees slightly cooler conditions, with a minimum of 7°C (46°F) and an average of 21°C (71°F), while still reaching a high of 43°C (109°F). Unlike August, September does experience a small amount of rain, with a total of 2 mm (0.1 in), although it also records no precipitation days. Both months exhibit high humidity levels, though September is slightly higher at 68%. For more detailed insights, check out Calistoga weather in September.
August and October present contrasting weather patterns. In August, temperatures soar with daytime highs averaging around 23°C (73°F) and peaking at a sweltering 41°C (106°F), while the nights remain relatively warm with minimal precipitation. Conversely, October experiences cooler conditions, with average temperatures dropping to 18°C (64°F) and nighttime lows reaching 4°C (40°F). This month also brings increased humidity and occasional rainfall, with a total of 38 mm (1.5 in) over two days. For a closer look at what to expect, you can check out Calistoga weather in October.
In comparing the weather between August and November, it’s clear that the two months exhibit stark differences. August boasts a much warmer climate, with temperatures ranging from a minimum of 11°C (52°F) to a scorching maximum of 41°C (106°F), along with low humidity levels of 66% and absolutely no recorded precipitation. In contrast, November experiences a significant drop in temperatures, featuring a minimum of 0°C (31°F) and an average of 12°C (55°F), with highs reaching 29°C (84°F). Additionally, November sees more humidity at 84% and around 51 mm (2.0 in) of precipitation over five days. For a detailed look at how November weather contrasts with other months, you can view Calistoga weather in November.
Comparing the weather in August and December reveals a striking contrast. August features warm temperatures, with a minimum of 11°C and an average of 23°C, reaching as high as 41°C, while enjoying dry conditions with no recorded precipitation and humidity at 66%. In contrast, December experiences much cooler temperatures, ranging from a chilly -1°C minimum to an average of 9°C, with maximums reaching 23°C. This month is also significantly wetter, boasting 95 mm of precipitation across 8 days, along with higher humidity levels at 84%. For a detailed look at December's climate, you can visit Calistoga weather in December.
August in Calistoga stands out as a month of warmth and dry serenity, with temperatures reaching heights that charm sun-seekers. Unlike the other months, which may bring variability in precipitation, August enjoys an uninterrupted stretch of clear skies, boasting no recorded rainfall and a delightful average temperature that encourages outdoor adventures. The humidity levels remain moderately comfortable, enhancing the overall experience of this sun-drenched month. For those planning to explore the region, the August weather is a perfect backdrop to indulge in the beauty of Calistoga’s landscape. Dive deeper into the seasonal trends with our detailed overview at Calistoga Climate.