Last updated: April 22, 2025
In October, Hermosillo, Mexico experiences a warm climate with a maximum temperature reaching 31°C (88°F) and an average of 24°C (75°F). The nights cool down to a pleasant minimum of 16°C (62°F), making for comfortable evenings. However, October is also characterized by considerable precipitation, with a total of 658 mm (25.9 in) spread across 30 rainy days, contributing to the region's high humidity levels of 83%. Visitors should be prepared for frequent showers amidst the warm temperatures, creating a unique blend of tropical warmth and refreshing rain.
In Hermosillo, Mexico, October brings a delightful transition as temperatures begin to shift towards the cooler end of the spectrum. With nighttime lows averaging around 16°C (62°F) and pleasant daytime highs reaching up to 31°C (88°F), this month offers a comfortable climate ideal for outdoor activities. The average temperature hovers at a crisp 24°C (75°F), mirroring the pleasant conditions of previous months. Notably, as the year progresses, October marks a gradual decrease in extremes, contrasting with the warmer summer months. This steady cooling trend not only enhances the charm of Hermosillo but also makes it an inviting time for visitors to experience its vibrant culture against the backdrop of a perfect fall climate.
In October, Hermosillo experiences a significant amount of rainfall, with 658 mm (approximately 25.9 inches) accumulating over 30 days. This marks a continuation of the region's wet season, peaking just after September's staggering 683 mm. As the month progresses, the consistent precipitation contributes to the lush landscapes typical of this time, while also highlighting the area's transition from the intense summer downpours. Notably, October maintains a high number of precipitation days, reflecting the persistent nature of the rain, which is crucial for replenishing local water sources ahead of the drier months that follow. This trend underscores the importance of October as a vital period for water resources in the region.
In October, Hermosillo experiences a noticeable rise in humidity, peaking at 83%. This increase marks a continuation of the trend seen from the late summer months, where August and September also recorded high humidity levels of 82%. Following the dry heat of April and May, when humidity dipped to around 57%, the monsoon season significantly raises moisture levels in the air as the year transitions into fall. Although November settles slightly lower at 80%, the October spike demonstrates a shift towards a more humid atmosphere, underscoring Hermosillo's climatic variability throughout the year.
As October rolls into Hermosillo, Mexico, the UV Index remains notably high at 13, categorizing it as extreme and allowing for a burn time of just 10 minutes. This trend of elevated UV exposure continues from the peak summer months, reflecting a persistent intensity in sunlight that is characteristic of the region. The UV Index has shown minimal fluctuation, hovering around the extreme range from February through September, with October maintaining this pattern just slightly lower than its highest points over the summer. As the year transitions to cooler months, November will see a drop to 10, which still indicates a very high risk. For more detailed insights on UV levels, check out the Hermosillo UV Index.
UV Risk Categories
As the months transition from summer to autumn, Hermosillo, Mexico, enjoys a consistently sunny October, boasting around 268 hours of sunshine. This marks a slight dip from the brighter summer months, where sunlight peaked at 323 hours in March and hovered around the 300-hour mark through the height of June and July. As temperatures gradually cool down, the sun still offers ample warmth, making October a delightful month for outdoor adventures. Interestingly, a trend of fluctuating sunshine hours can be observed throughout the year, with November bringing a resurgence of brighter skies at 304 hours, setting the stage for the coming winter months.
In Hermosillo, Mexico, October brings a noticeable shift in weather patterns, featuring a 28% chance of sunny days. As the heat of summer recedes, this month marks a transitional phase, where the sunshine starts to reappear after the lingering grips of the rainy season. Compared to the earlier months, October's likelihood of clear skies is significantly higher than the summer’s low rates, yet it still falls short of the sunnier months like January and February. As a result, visitors can expect a mix of delightful sunny spells interspersed with cloudier days, making it a vibrant time to enjoy the city's charms while embracing the evolving fall ambiance.
In Hermosillo, Mexico, October marks a transition in daylight duration, offering 11 hours of sunshine each day. This pattern follows a consistent trend observed throughout the year, where daylight typically fluctuates between 11 and 12 hours. From February to September, residents enjoy a generous 12-hour window of daylight, showcasing the region's abundant sun. However, as the days shorten in October, this gradual decline signals the approach of winter months, bringing daylight back down to 11 hours until February. This cyclical rhythm highlights Hermosillo's predominantly sunny climate while also embracing the changing seasons with its slight yet noticeable variations in daylight.
As October settles over Hermosillo, the winds whisper a gentle symphony, with an average speed of 1.0 m/s (2 mph)—the calmest of the year. This drop in wind speed marks a notable trend as the summer's breezy gusts gradually recede. In contrast to the previous months, which maintained a consistent light breeze around 1.1 m/s, October's winds invite a stillness that envelops the city, creating a serene backdrop for the vibrant autumn landscape. As the year progresses, November brings a slight uptick back to 1.3 m/s, reminding us that Hermosillo's winds ebb and flow, shaping the ambiance of its unique climate.
The weather in Hermosillo 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 Hermosillo and find detailed weather information for every month.
In October, the weather is characterized by warm temperatures with a minimum of 16°C (62°F) and an average of 24°C (75°F), peaking at 31°C (88°F). However, this month also experiences significant rainfall, with 658 mm (25.9 in) typically spread over 30 days, leading to high humidity levels of 83%. In contrast, January offers a slightly cooler climate, with minimum temperatures of 13°C (56°F), an average of 23°C (73°F), and a maximum of 32°C (91°F). One notable difference is the drastically reduced precipitation in January, which averages only 27 mm (1.0 in) over just 6 days, resulting in lower humidity levels at 76%. For more details about January weather, visit Hermosillo weather in January.
In comparing the weather between October and February, October tends to be more humid and wetter, with an average temperature of 24°C (75°F) and total precipitation reaching 658 mm (25.9 in) over 30 days. This results in a high humidity level of 83%, making the atmosphere feel quite muggy. Conversely, February offers a drier experience with significantly less rainfall, totaling only 15 mm (0.6 in) over just 3 days, and although the average temperature remains the same at 24°C (75°F), the maximum temperature can rise to 33°C (91°F). This reduction in precipitation and humidity to 68% makes February a more comfortable month for outdoor activities. For more detailed insights, you can visit Hermosillo weather in February.
When comparing the weather in October and March, we see notable differences in temperature and precipitation. October generally has temperatures ranging from a minimum of 16°C (62°F) to a maximum of 31°C (88°F), while March offers a slightly wider range, with a minimum of 15°C (60°F) and a maximum of 32°C (91°F). However, October is characterized by significantly higher precipitation, receiving around 658 mm (25.9 in) over 30 days, compared to March's much drier conditions with only 38 mm (1.5 in) over 9 days. Additionally, humidity levels are higher in October at 83%, while March experiences a more comfortable 59%. For those interested in more detailed information, you can check out Hermosillo weather in March.
When comparing the weather in October and April, one can observe notable differences. In October, temperatures range from a minimum of 16°C (62°F) to a maximum of 31°C (88°F), with an average temperature of 24°C (75°F). However, this month also brings significant rainfall, totaling 658 mm (25.9 in) across 30 days, resulting in high humidity levels of 83%. In contrast, April features similar minimum temperatures (16°C or 62°F) but boasts warmer maximums, reaching up to 34°C (94°F) with an average of 25°C (78°F). Additionally, precipitation in April is considerably lower at 120 mm (4.7 in) over just 17 days, contributing to a much drier atmosphere with humidity at 57%. For a closer look at April's weather specifics, check out the detailed information here: Hermosillo weather in April.
October and May in Hermosillo showcase distinct weather characteristics. In October, the temperatures range from a minimum of 16°C (62°F) to a maximum of 31°C (88°F), with an average of 24°C (75°F), while May is slightly warmer, with temperatures ranging from 18°C (65°F) to 34°C (93°F), averaging 25°C (77°F). While October experiences more precipitation at 658 mm (25.9 in) over 30 days and a higher humidity level of 83%, May records less rainfall at 533 mm (21.0 in) and a more comfortable humidity of 65%. Overall, October is characterized by cooler temperatures and higher moisture, whereas May tends to be hotter and drier. For more detailed information, you can check Hermosillo weather in May.
In comparing the weather of October and June, we see some interesting contrasts. October typically experiences slightly cooler temperatures, with an average of 24°C (75°F), while June has a similar average but begins with a higher minimum of 18°C (64°F) and peaks at 32°C (90°F). Precipitation levels are also notable; October sees more rain with 658 mm (25.9 in) across 30 days, whereas June has 553 mm (21.8 in) over 29 days, contributing to its relatively lower humidity of 66% compared to October's 83%. For more details on what to expect, check out Hermosillo weather in June.
When comparing the weather in October and July, both months exhibit similar temperature ranges, with average temperatures hovering around 24°C (75°F) and maximums reaching up to 31°C (88°F) in October and 31°C (89°F) in July. However, October experiences significantly higher precipitation, totaling 658 mm (25.9 in) over 30 days, compared to 460 mm (18.1 in) across 31 days in July. Furthermore, October is notably more humid, with levels at 83%, while July's humidity is lower at 75%. For more detailed insights, you can visit Hermosillo weather in July.
In comparing the weather between October and August, both months exhibit similar average temperatures, with October featuring a minimum of 16°C (62°F) and an average of 24°C (75°F), while August has a slightly higher minimum of 17°C (64°F) and a comparable average of 24°C (76°F). However, August tends to be a bit warmer in terms of maximum temperatures, peaking at 32°C (90°F) compared to October's maximum of 31°C (88°F). Precipitation levels are notably higher in October, with 658 mm (25.9 in) compared to August’s 590 mm (23.2 in), resulting in similar humidity levels at 83% for October and 82% for August. For more detailed insights about weather conditions, you can check Hermosillo weather in August.
When comparing the weather in October and September, we notice some similarities and slight differences. Both months feature an average temperature of 24°C (75°F), with maximum temperatures reaching 31°C (88°F). However, October tends to be a bit warmer, with a minimum temperature of 16°C (62°F) compared to September's 17°C (63°F). Precipitation levels are also comparable, though September has slightly more rainfall at 683 mm (26.9 in) over 29 days, while October sees 658 mm (25.9 in) over 30 days. Humidity remains high in both months, hovering around 83% in October and 82% in September. For more details on September weather, you can refer to Hermosillo weather in September.
In October, the weather is generally warm, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 31°C (88°F), and an average of 24°C (75°F). However, this month also brings significant rainfall, accumulating to 658 mm (25.9 inches) over 30 days, along with high humidity levels at 83%.
In contrast, November presents slightly cooler temperatures, with a minimum of 15°C (60°F) and a maximum of 32°C (89°F). The average temperature decreases to 23°C (74°F), and the rainfall is considerably less, totaling 276 mm (10.9 inches) across 24 days. Additionally, humidity drops slightly to 80%. For more detailed information, you can explore Hermosillo weather in November.
In comparing the weather of October and December, October tends to be warmer and significantly wetter. With average temperatures reaching up to 24°C (75°F) and maximums of 31°C (88°F), the month also experiences high humidity at 83% and considerable rainfall of 658 mm (25.9 in) spread over 30 days. In contrast, December sees slightly cooler temperatures, with averages around 23°C (73°F) and maximums of 30°C (87°F), but is drier, with only 48 mm (1.9 in) of precipitation over just 9 days and lower humidity at 76%. For more detailed information, you can check Hermosillo weather in December.
As October unfolds in Hermosillo, it brings a notable shift in weather compared to the preceding months. The temperatures remain pleasant, with warm days and cooler nights, setting a comfortable backdrop for outdoor activities. However, unlike the drier summer months, October experiences a significant increase in precipitation, with rain almost every day contributing to the overall humidity of 83%. This shift not only enhances the green landscape but also marks the transition into the autumn season, where the vibrant colors of nature begin to emerge. For those interested in delving deeper into what to expect throughout the year, check out Hermosillo Climate.