Last updated: April 22, 2025
September in Zacatecas, Mexico offers a delightful mix of mild temperatures and refreshing rainfall. The maximum daytime temperature reaches a comfortable 27°C (81°F), while the average temperature sits at a pleasant 18°C (64°F). Evening coolness can be expected with minimum temperatures dipping to 9°C (48°F). This month is also characterized by significant precipitation, with a total of 148 mm (5.8 in) spread over 17 days, contributing to the lush surroundings. With humidity levels at around 86%, the air feels refreshing, making September an exciting time to experience the vibrant landscapes of Zacatecas.
In September, Zacatecas experiences a gentle transition into the cooler months, with temperatures showcasing a comfortable average of 18°C (64°F). The minimum temperature hovers around 9°C (48°F), while the daytime max reaches a pleasant 27°C (81°F), striking a balance that makes the city particularly inviting. As summer's peak fades away, there's a noticeable decrease in both the min and max temperatures compared to the hotter summer months of May through August. This makes September an ideal time for outdoor activities, as the milder weather opens up opportunities to explore the rich history and stunning landscapes of Zacatecas without the oppressive heat of the previous months.
In Zacatecas, Mexico, September stands out as a peak month for precipitation, showcasing a remarkable total of 148 mm (5.8 in) over 17 days of rain. This marks a slight increase from the preceding months, where July and June also brought significant rainfall, at 149 mm and 110 mm respectively. As the summer transitions into fall, September's downpours play a crucial role in replenishing the region's water reserves before the drier months ahead. Following the trend of increasing moisture from May's 26 mm (1.0 in) to September's robust totals, the landscape is revitalized, inviting vibrant flora and a refreshing atmosphere as the rainy season peaks.
As September arrives in Zacatecas, Mexico, the air becomes notably more humid, with levels reaching 86%. This month marks the peak of the humid season, following a gradual increase from the relatively comfortable 47% in April. The trend is clear: after a drier spring, humidity begins to climb in the summer months, reaching its zenith in September. Following this peak, humidity slightly declines to 83% in October, hinting at the onset of fall. This cyclical shift emphasizes how Zacatecas transitions from the dry warmth of spring to a moister atmosphere, making September a standout month in the yearly humidity pattern.
In Zacatecas, Mexico, the UV Index takes a steep rise from January through September, reaching a peak of 15 during the months of April and May. During this period, the exposure category remains at extreme, demanding caution, as the burn time stays consistently short at just 10 minutes. By September, the UV Index settles at 14, continuing the trend of extreme sun intensity, which underscores the importance of protective measures against sun damage. Following a gradual decline into October, where the index drops to 12, and further into the cooler months of November and December, which see the UV Index dip to 10 and 8 respectively, the sun's rays still demand respect. For more information on maintaining sun safety, visit Zacatecas UV Index.
UV Risk Categories
In Zacatecas, Mexico, September marks a transition into autumn, enveloping the city in a delightful embrace of sunshine with an average of 294 hours of bright light. As summer wanes, this month showcases slightly lower sunshine hours compared to the lush brightness of May and June, which peak at 350 and 334 hours respectively. However, September's generous sunlight still outshines the winter months, maintaining a glow that invites both locals and visitors to relish in the charming atmosphere. Following the bustling warmth of summer, this month offers a pleasant balance, reflecting a gradual yet steady decrease in daylight that hints at the upcoming change of seasons without compromising the inviting allure that Zacatecas is known for.
When considering the likelihood of sunny weather in September in Zacatecas, Mexico, it's important to note a clear trend: this month experiences one of the lowest chances of sunshine, with a mere 28% probability. Following a gradual decline from the relatively sunnier days of May (69%) and April (67%), September marks a significant drop as the rainy season approaches. As the region transitions toward the end of summer, the skies tend to be less forgiving, making it a less ideal time for outdoor activities compared to other months like February, which boasts an impressive 81% chance of sun. Overall, September’s weather is a reminder of the shifting patterns in Zacatecas, signaling the region's dynamic climatic shifts as autumn sets in.
As September arrives in Zacatecas, Mexico, the day continues to enjoy a generous 12 hours of daylight, mirroring the trends seen in both April and August. This consistent daylight duration reflects a gradual transition toward the shorter days of fall, with sunlight receding from the 13 hours seen during the peak of summer months. With the promise of warm, sunlit afternoons, September serves as a gentle bridge, allowing locals and visitors alike to savor the remaining days of extended daylight before the evenings grow longer in October. This shift not only marks a change in the clock but also invites the diversity of autumn's charm in this vibrant region.
In Zacatecas, Mexico, the September wind offers a gentle reprieve as average wind speeds drop to a soft 2.4 m/s (5 mph), marking it as one of the calmest months of the year. This gradual decline in wind intensity is part of a noticeable trend as the summer breezes fade into autumn, following a peak in April when winds reached 4.1 m/s (9 mph). The transition into fall not only brings lower wind speeds but also enhances the region's serene atmosphere, allowing residents and visitors to savor the crisp, fresh air without the previous season's brisk gusts. As October arrives, the winds barely pick up, hovering around 2.6 m/s (6 mph), reinforcing September's tranquil charm.
The weather in Zacatecas changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Zacatecas and find detailed weather information for every month.
In September, the weather is much milder with temperatures ranging from a minimum of 9°C (48°F) to an average of 18°C (64°F) and a maximum of 27°C (81°F). However, this month also experiences significant rainfall, totaling 148 mm (5.8 in) over 17 days, contributing to a high humidity level of 86%. In contrast, January features cooler temperatures, with a minimum of -2°C (29°F) and an average of 12°C (54°F), while reaching up to 26°C (78°F) on warmer days. This month sees drastically lower precipitation, with only 17 mm (0.7 in) spread across just 2 days, and humidity levels are more comfortable at 71%. For more detailed weather insights, you can check Zacatecas weather in January.
When comparing the weather in September and February, notable differences emerge. September tends to be warmer, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), and a relatively high humidity level of 86%. It also experiences considerable rainfall, with 148 mm (5.8 in) of precipitation over 17 days. In contrast, February features cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 29°C (85°F), but significantly less rainfall, averaging just 9 mm (0.4 in) over only 1 day. The humidity during this month is also lower at 64%. For more detailed insights, you can check Zacatecas weather in February.
September and March showcase distinct weather patterns, highlighting the transition between seasons. In September, temperatures range from a cool 9°C (48°F) at night to a warm 27°C (81°F) during the day, with a significant average temperature of 18°C (64°F) and considerable rainfall of 148 mm (5.8 in) over 17 days, accompanied by high humidity at 86%. In contrast, March experiences milder temperatures, with a minimum of 4°C (40°F) and a maximum of 32°C (90°F), averaging at 17°C (63°F). Precipitation in March is minimal at just 6 mm (0.2 in) across a single day, resulting in much lower humidity at 49%. For more details, visit Zacatecas weather in March.
In comparing the weather of September and April, one can observe distinct differences in temperature and precipitation patterns. September features a broader temperature range, with minimums around 9°C (48°F) and maximums reaching up to 27°C (81°F), along with notable precipitation of 148 mm (5.8 in) across 17 days, contributing to a humid environment with 86% humidity. In contrast, April experiences milder conditions, with cooler minimum temperatures of 5°C (40°F) and warm maximums hitting 32°C (89°F), but it boasts significantly lower precipitation at just 7 mm (0.3 in) over 1 day, resulting in a much drier atmosphere with only 47% humidity. For more detailed information, you can visit Zacatecas weather in April.
In comparing the weather between September and May, we notice some distinct differences. September experiences a wider temperature range with a minimum of 9°C (48°F) and a maximum of 27°C (81°F) and is characterized by high humidity at 86%. It also sees considerable rainfall, with 148 mm (5.8 in) over about 17 days. In contrast, May tends to be warmer overall, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 34°C (93°F) and much lower humidity at 55%. Rainfall during May is minimal, amounting to only 26 mm (1.0 in) over just 5 days. For more specifics about May weather, check out Zacatecas weather in May.
In comparing the weather of September and June, we find notable differences in temperature and humidity. September usually has a slightly cooler minimum temperature of 9°C (48°F) and an average of 18°C (64°F), peaking at 27°C (81°F). In contrast, June typically sees warmer temperatures, with a minimum of 10°C (50°F), an average of 20°C (69°F), and maximums reaching up to 34°C (93°F). Additionally, September experiences higher precipitation levels, with 148 mm (5.8 in) over 17 days and significantly higher humidity at 86%. June, on the other hand, enjoys less rainfall at 110 mm (4.3 in) across just 11 days and lower humidity at 77%. For more detailed insights into the climate, you can check Zacatecas weather in June.
When comparing the weather in September and July, September tends to be slightly cooler, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), while July's temperatures range from a minimum of 11°C (51°F) to a maximum of 30°C (85°F). Both months experience similar levels of precipitation, with September receiving 148 mm (5.8 in) over 17 days and July receiving 149 mm (5.9 in) over 15 days. Additionally, September has higher humidity at 86%, compared to 82% in July. For more detailed insights, you can refer to Zacatecas weather in July.
In comparing the weather between September and August, September tends to be slightly cooler, with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), while August remains warmer, with temperatures averaging from 10°C (50°F) to 30°C (86°F). Additionally, September experiences significantly more precipitation, totaling 148 mm (5.8 in) over 17 days, whereas August sees only 89 mm (3.5 in) in 10 days. Humidity levels are relatively high in both months, with September at 86% and August at 83%. For more detailed information about August weather, you can refer to Zacatecas weather in August.
September and October present a noticeable shift in weather conditions. In September, temperatures span from a minimum of 9°C (48°F) to a maximum of 27°C (81°F), with an average of 18°C (64°F). The month is characterized by higher precipitation, totaling 148 mm (5.8 in) over 17 days, along with a humidity level of 86%. In contrast, October brings slightly cooler temperatures with a minimum of 4°C (40°F) and an average of 17°C (62°F), peaking at 28°C (82°F). This month sees significantly less rain, with only 48 mm (1.9 in) falling over 7 days and a marginally lower humidity of 83%. For more detailed insights, you can check Zacatecas weather in October.
In comparing the weather between September and November, we see a notable shift. September experiences milder temperatures with a minimum of 9°C (48°F) and an average of 18°C (64°F), while November sees a drop, featuring a minimum of -3°C (28°F) alongside an average of 14°C (58°F). Interestingly, both months share a maximum temperature of 27°C (81°F); however, September is much wetter, receiving 148 mm (5.8 in) of precipitation over 17 days compared to November, which only experiences 16 mm (0.6 in) of rain over just 2 days. Additionally, humidity remains relatively high in both months, though slightly lower in November at 80%, compared to September’s 86%. For more detailed weather information, you can refer to Zacatecas weather in November.
Comparing the weather in September and December reveals a significant shift in climate conditions. September typically enjoys mild temperatures, with averages around 18°C (64°F) and highs reaching 27°C (81°F), accompanied by substantial rainfall of 148 mm (5.8 in) over 17 days, leading to high humidity levels of 86%. In contrast, December presents a much colder landscape, where temperatures drop to a minimum of -8°C (18°F) and average around 12°C (54°F), with a maximum of 26°C (79°F). Notably, December experiences minimal precipitation at only 12 mm (0.5 in) over just one day and slightly lower humidity at 83%. For more details, you can check Zacatecas weather in December.
As September unfolds in Zacatecas, the weather presents a unique blend of mild temperatures and higher humidity, setting it apart from other months of the year. With an average temperature of 18°C, daytime comfort gives way to cooler evenings, creating a refreshing change that invites outdoor exploration. However, expect frequent rain, as the month experiences a significant uptick in precipitation, bringing life to the landscape and a lush backdrop for visitors. This vibrant and occasionally soggy charm contrasts sharply with the drier, sunnier conditions of the preceding months. To better understand how September fits into the broader Zacatecas Climate, be sure to explore Zacatecas Climate.