Last updated: February 24, 2025
In Sister Bay, United States, the weather in October presents a captivating blend of autumnal colors and crisp air. With maximum temperatures reaching 20°C (68°F), and an average of 11°C (52°F), the month offers a pleasant yet cool climate ideal for outdoor activities. However, visitors should prepare for prevalent precipitation, with 108 mm (4.2 in) falling over 13 days, contributing to the region's lush landscapes. The humidity level remains high at 83%, enhancing the refreshing feel of the autumn air. Embrace the season's charm while enjoying the vibrant surroundings of Sister Bay!
As October settles in Sister Bay, the region experiences a notable shift in temperatures, with the mercury ranging from a minimum of 1°C (35°F) to a pleasant maximum of 20°C (68°F). This month marks the transition into cooler autumn days, where the average temperature hovers around 11°C (52°F). Compared to the warm summer months, October offers a refreshing reprieve, while still providing mild conditions that invite outdoor exploration. The gradual decline in temperatures is a precursor to the chill of November and December, making October an ideal time for enjoying the vibrant fall foliage before winter takes hold.
In October, Sister Bay experiences a notable increase in precipitation, recording 108 mm (4.2 in), making it the wettest month of the year. This surge comes with 13 days of rainfall, contributing to a dramatic shift from the relatively drier late summer months. By comparison, previous months such as September, with 74 mm (2.9 in) over 10 days, highlight a clear escalation in both quantity and frequency of rain as the season transitions. The pattern suggests that October acts as a bridge into the wetter winter months, where increased moisture paves the way for the cold and snow ahead. As autumn unfolds, the vibrant colors of the foliage paired with the rhythmic sound of rain evoke a serene yet dynamic atmosphere that defines Sister Bay during this time of year.
October in Sister Bay brings a slight uptick in humidity, averaging around 83%, as the summer warmth begins to fade. This month serves as a transition; after the lower levels of 75% to 79% seen in the peak summer months, October's humidity starts to edge closer to the higher levels typical of winter. With the humidity gradually increasing from 79% in September, October hints at the return of the more moist conditions that characterize the colder months ahead. While still comfortable compared to the depths of winter, the noticeable rise places October in a unique position as nature prepares for the seasonal shift.
In October, Sister Bay experiences a moderate UV Index of 5, suggesting that while the sun is less intense than in the peak summer months, caution is still warranted. With an estimated burn time of 30 minutes, it's a reminder to protect your skin during outdoor activities. The UV Index has seen a gradual decline from very high levels of 9 in the bustling summer months, demonstrating the seasonal shift as autumn sets in. This trend continues from the previous month, where the UV Index was at 7 in September. As the temperature cools and the days shorten, it's wise to keep an eye on the UV levels to enjoy the fall colors safely. For more detailed information, check the Sister Bay UV Index.
UV Risk Categories
As October rolls in, Sister Bay basks in a golden glow with 213 hours of sunshine, a delightful transition from the vibrant summer months. After experiencing a peak of 364 hours in July, the days gradually shorten, yet October maintains a comfortable brightness compared to the colder months ahead. This time of year sees a notable decline from the lively 334 hours of August, but is still significantly brighter than the chilling days of November and December. As the autumn leaves transform the landscape, Sister Bay offers a charming ambience, inviting residents and visitors alike to enjoy the warmth of the sun before the winter chill sets in.
In Sister Bay, October brings a moderate chance of sunshine, with only 38% likelihood of clear skies. This marks a noticeable decline from the summer months, where July peaks at 61% and August follows closely at 56%. As fall settles in, the chances of sunshine dip further, mirroring the transition from vibrant summer days to the cooler, cloudier vibes of late autumn. Interestingly, October's sun probability closely resembles that of November, suggesting a consistent pattern of diminishing daylight and warmth as the year progresses. While sunny days may be less frequent, the crisp air and changing foliage create a beautiful backdrop worth enjoying even on the cloudier days.
As autumn settles in Sister Bay, October brings a notable shift in daylight duration, offering about 10 hours of daylight—just a step down from the 12 hours seen in September. This gradual decline signals the transition into shorter days, mirroring the rhythm of the changing seasons. After basking in the longest days of summer, where sunlight reached a peak of 15 hours in June and July, the daylight begins to wane, cozying up the atmosphere for the onset of winter. The trend toward shorter days continues into November, further emphasizing the seasonal cycle and inviting residents and visitors alike to savor the warm hues of fall before the days grow even shorter.
As October rolls into Sister Bay, the winds settle into a gentle rhythm, with an average speed of 6.3 m/s (14 mph). This marks a slight increase from the summer's lower breezes in July and June, which dipped to 4.9 m/s (11 mph) and 5.8 m/s (13 mph), respectively. However, the fall air feels noticeably brisker compared to the lighter summer months, paving the way for a transition to the stronger winds of winter. Notably, November brings a significant uptick, with winds jumping to 8.6 m/s (19 mph), indicating that autumn's bite is just around the corner. The gentle shift in October's winds signals a time of change, inviting both locals and visitors to embrace the crispness of the season.
The weather in Sister Bay changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of October's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Sister Bay and find detailed weather information for every month.
In October, temperatures range from a chilly 1°C (35°F) at night to a mild 20°C (68°F) during the day, with an average of 11°C (52°F). This month sees significant rainfall, averaging 108 mm (4.2 in) over about 13 days, making it one of the wetter months, coupled with a humidity level of 83%. In contrast, January brings much colder conditions, with temperatures plummeting between -18°C (-1°F) and a maximum of just 5°C (41°F), averaging a frigid -4°C (25°F). Precipitation is lower in January, at 48 mm (1.9 in) over 9 days, but the humidity is slightly higher at 91%. For more details on the January climate, you can visit Sister Bay weather in January.
October and February present starkly contrasting weather patterns. In October, temperatures range from a chilly 1°C (35°F) to a more comfortable 20°C (68°F), with an average of 11°C (52°F). The month experiences significant precipitation, averaging 108 mm (4.2 in) over 13 days, while humidity sits at a relatively high 83%. Conversely, February brings frigid conditions, with temperatures plunging to a minimum of -19°C (-2°F) and an average of -4°C (24°F), peaking at only 6°C (44°F). Despite February's lower precipitation of 57 mm (2.3 in) across 11 days, the humidity is slightly higher at 91%, creating an overall chillier atmosphere. For more details on the February weather in Sister Bay, you can visit Sister Bay weather in February.
October and March present quite contrasting weather patterns. In October, temperatures range from a minimum of 1°C (35°F) to a comfortable maximum of 20°C (68°F), with an average of 11°C (52°F). The month experiences a significant amount of rainfall at 108 mm (4.2 in) over approximately 13 days, with humidity hovering around 83%. In stark contrast, March brings much chillier conditions, with temperatures dipping as low as -19°C (-1°F) and only reaching a maximum of 7°C (45°F), leading to an average of -1°C (31°F). Precipitation during March is lighter at 61 mm (2.4 in) over 9 days, accompanied by a slightly higher humidity level of 87%. For a closer look at weather specifics, check out Sister Bay weather in March.
When comparing the weather in October and April, October generally exhibits milder conditions, with average temperatures ranging from 1°C (35°F) to a maximum of 20°C (68°F). In contrast, April tends to be cooler, featuring minimum temperatures as low as -7°C (19°F) and an average of just 2°C (36°F). Both months experience significant precipitation, with October receiving 108 mm (4.2 in) over 13 days, while April sees slightly less at 88 mm (3.5 in) over 11 days. Humidity levels are relatively similar, with October at 83% and April slightly higher at 87%. For a detailed look at the climate in April, you can view more information here: Sister Bay weather in April.
In comparing the weather of October and May, October generally experiences milder temperatures with a minimum of 1°C (35°F) and an average of 11°C (52°F), while May sees slightly cooler conditions with a minimum of -1°C (31°F) and an average of 6°C (44°F). October also tends to be wetter, with 108 mm (4.2 in) of precipitation over 13 days, compared to May's 86 mm (3.4 in) over 10 days. Humidity levels are comparable in both months, with October at 83% and May at 82%. For more detailed insights into May's climate, you can check the link: Sister Bay weather in May.
October weather is generally cooler and wetter than June, with average temperatures ranging from a minimum of 1°C (35°F) to a maximum of 20°C (68°F). In contrast, June enjoys milder conditions, featuring minimum temperatures of 5°C (41°F) and maximums reaching 22°C (72°F), making it more pleasant for outdoor activities. Additionally, October experiences more rainfall, with 108 mm (4.2 in) spread over 13 days, compared to June's 91 mm (3.6 in) and 11 rainy days. October's higher humidity at 83% also contributes to a more damp feel, while June's humidity is slightly lower at 79%. For a closer look at the weather during June, visit Sister Bay weather in June.
Comparing the weather between October and July reveals distinct differences in temperature and humidity. In October, the temperature ranges from a chilly 1°C (35°F) to a milder 20°C (68°F), with an average of 11°C (52°F). This month also experiences higher precipitation, with 108 mm (4.2 in) of rain spread over 13 days and a humidity level of 83%. In contrast, July is much warmer, with minimum temperatures around 12°C (54°F) and a maximum of 26°C (79°F), averaging 19°C (67°F). It sees less precipitation at 74 mm (2.9 in) over 10 days and lower humidity at 75%. For more details on July weather, you can refer to this link: Sister Bay weather in July.
Comparing the weather in October and August reveals a notable shift in conditions. October experiences cooler temperatures, with a minimum of 1°C (35°F) and an average of 11°C (52°F), whereas August boasts warmer temperatures, ranging from a minimum of 15°C (58°F) to an average of 20°C (68°F). In addition, October sees more precipitation, totaling 108 mm (4.2 in) over 13 days, compared to August's 78 mm (3.1 in) over just 9 days. The humidity is also higher in October at 83%, compared to August's 76%. For a closer look at August weather specifics, check out Sister Bay weather in August.
In comparing the weather of September and October, it’s clear that October brings cooler temperatures, with a minimum of 1°C (35°F) compared to September’s milder low of 7°C (45°F). The average temperature in October drops to 11°C (52°F), significantly lower than September's average of 17°C (63°F). Additionally, October experiences increased precipitation, with 108 mm (4.2 in) falling over 13 days, whereas September sees only 74 mm (2.9 in) over 10 days. Humidity levels are also slightly higher in October at 83%, compared to September's 79%. For more details about September's weather, you can check Sister Bay weather in September.
October and November exhibit noticeable differences in weather conditions. In October, temperatures range from a minimum of 1°C (35°F) to a maximum of 20°C (68°F), with an average temperature of 11°C (52°F). The month also sees significant precipitation at 108 mm (4.2 in) over 13 days and a humidity level of 83%. In contrast, November brings cooler weather, with temperatures dropping to a minimum of -6°C (21°F) and averaging just 4°C (39°F), reaching a maximum of 14°C (57°F). Precipitation decreases to 66 mm (2.6 in) over 10 days, while humidity rises slightly to 86%. For a more detailed look at the weather in Sister Bay during November, you can visit Sister Bay weather in November.
In October, temperatures in Sister Bay range from a chilly 1°C (35°F) to a mild 20°C (68°F), with an average of 11°C (52°F), accompanied by substantial precipitation of 108 mm (4.2 in) over 13 days and a humidity level of 83%. In contrast, December ushers in much colder weather, with temperatures dipping as low as -17°C (1°F) and averaging around -1°C (31°F), while the maximum temperature reaches only 11°C (52°F). Precipitation decreases to 69 mm (2.7 in) spread over 11 days, and humidity rises slightly to 87%. For more details on December weather conditions, check out Sister Bay weather in December.
As the vibrant hues of fall paint Sister Bay, October ushers in a notable shift in weather that sets it apart from the warmer months. With temperatures gradually cooling, the air becomes crisp, inviting visitors to enjoy the 83% humidity while donning layers to embrace the season. The increased precipitation, averaging over a week of rain, adds to the lush landscapes, contrasting with the drier heat of summer. The melding of milder days and chilly nights create a unique charm, perfect for enjoying the scenic views and autumn festivities. For more insights into what to expect throughout the year, explore the details at Sister Bay Climate.