Last updated: February 24, 2025
July in Tucson, United States, is characterized by sweltering heat and occasional monsoon rains. Temperatures can soar to a blistering 43°C (110°F), with an average hovering around 31°C (88°F), providing a stark contrast to cooler nights that dip to 20°C (69°F). During this month, precipitation averages 54 mm (2.1 in) across approximately 10 rainy days, contributing to a humidity level of 34%. This blend of heat and moisture creates a unique climate, perfect for those seeking a quintessential desert summer experience.
In Tucson, United States, July marks the peak of summer, where temperatures rise significantly, showcasing the region's desert climate. With minimums averaging 20°C (69°F) and a staggering maximum of 43°C (110°F), the heat can be intense, though the average temperature hovers around a warm 31°C (88°F). This month sets itself apart as one of the hottest, following an upward trend seen from the milder months of January through June. The consistent warmth of July pairs with low humidity, creating a dry heat that characterizes the desert landscape, inviting both locals and visitors to seek shade and enjoy sunset strolls as the day cools off.
In Tucson, July stands out as a pivotal month for precipitation, showcasing a significant uptick compared to the earlier summer months. With 54 mm (2.1 in) of rain recorded over 10 days, July not only marks the peak of the monsoon season but also reflects a dramatic increase from the 8 mm (0.3 in) observed in June. This influx of rain brings a much-needed respite from the sweltering desert heat, enhancing the local landscapes and supporting the region's biodiversity. Following July, precipitation begins to taper off slightly in August, suggesting a transition towards the drier months ahead. The data paints a clear picture: while Tucson's summer starts hot and dry, July reigns as a refreshing oasis that rejuvenates both the land and its inhabitants.
In Tucson, July brings a slight dip in humidity, settling at 34%, which is consistent with the dry trend established in the preceding months. Following the peak levels of 79% humidity experienced in February, the desert climate transforms as the year progresses, showcasing a significant decline. The transition from the wetter spring months—where April, for instance, holds a humidity level of 55%—to the arid summer reflects Tucson’s characteristic dry desert climate. While August does see a modest increase to 48%, July remains one of the driest months, emphasizing the stark contrast from the more humid winter months. This dryness not only highlights the region's climatic extremes but also underscores the intensity of the summer heat, making adequate hydration essential for residents and visitors alike.
In July, Tucson experiences a persistent extreme UV Index of 12, mirroring the intense sunlight seen in June and reaching its peak during the summer months. With a quick burn time of just 10 minutes, it’s crucial for residents and visitors to take protective measures against the sun's harmful rays. Following a steady increase from moderate levels in January to the extreme category starting in April, July's UV Index underscores the importance of vigilance in sun safety. As temperatures soar, the risk of skin damage escalates, making knowledge of daily UV levels essential for planning outdoor activities. For a detailed overview of sun safety throughout the year, check out the Tucson UV Index.
UV Risk Categories
July in Tucson dazzles with 354 hours of sunshine, making it one of the sunniest months of the year. As the summer heat peaks, this vibrant desert city continues to bask in bright, sunny days following June's equally radiant 371 hours. Interestingly, sunshine hours see a slight dip in August, with 340 hours, hinting at the subtle transition toward cooler fall months. Throughout the year, sunlight progressively increases from January's 204 hours to its peak in May and June, showcasing a clear pattern of increasing warmth and brightness that Tucsonites cherish. This consistent abundance of sunshine not only enhances the region's allure but also contributes to its lively desert ecology and vibrant outdoor culture.
While Tucson is known for its sun-soaked days, July presents an interesting shift in weather patterns. With a sunshine probability of just 34%, this month marks a notable dip compared to the more radiant spring and early summer months. As temperatures peak and the monsoon season approaches, the likelihood of overcast skies and rain increases. In fact, before July, sunshine percentages soar, hitting heights of 88% in May and 76% by April, showcasing a clear trend of robust sunny weather. As the heart of summer unfolds, it’s clear that July offers a stark contrast to the consistently bright days that characterize other months in this vibrant desert environment.
In Tucson, July offers a delightful 13 hours of daylight, continuing a trend of ample sunshine that began in June with a peak of 14 hours. As summer progresses, daylight hours begin to stabilize, with July's duration mirroring that of August. Interestingly, the months leading up to this peak showcase a gradual increase from 10 hours in January to June's high, reflecting the region's shift into warmer, longer days. After July, daylight begins its slow descent, signaling the transition towards autumn. This pattern not only highlights the vibrancy of Tucson's summer but also sets the stage for the shorter, more moderate days ahead.
In July, Tucson experiences a dip in average wind speeds, with the breeze slowing to 2.2 m/s (5 mph). This decline marks the lowest point in the annual wind cycle, contrasting sharply with the preceding months of spring and early summer, which typically see speeds around 3.3 m/s (7 mph). As the city embraces the heat of summer, the dwindling winds may contribute to a more stagnant atmosphere, compelling residents to seek solace in shaded spots or air-conditioned retreats. Following July, the trend continues downward into August and September, where winds hover at their calmest, lingering near 2.1 m/s (5 mph). This seasonal lull not only reinforces the essence of Tucson's summer but also highlights the cyclical nature of the desert climate, preparing for a gradual resurgence of wind come October.
The weather in Tucson changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Tucson and find detailed weather information for every month.
The weather in Tucson varies dramatically between July and January. In July, temperatures soar with a minimum of 20°C (69°F) and an average high reaching 31°C (88°F), peaking at an intense 43°C (110°F). Despite the higher heat, the humidity remains relatively low at 34%, and the region experiences about 54 mm (2.1 inches) of rain over approximately 10 days. In stark contrast, January offers much cooler temperatures, with a minimum of -1°C (30°F) and an average high of 11°C (53°F), going up to 25°C (77°F). The month is characterized by a more humid climate, with a humidity level of 76%, and significantly less rainfall, totaling just 23 mm (0.9 inches) over about 3 days. For more insights, visit Tucson weather in January.
The weather in July and February reflects the stark contrasts of Tucson's seasonal climate. In July, temperatures soar, with minimums around 20°C (69°F) and averages peaking at a sweltering 31°C (88°F), while the maximum can reach a blistering 43°C (110°F). Precipitation during July totals 54 mm (2.1 in) over approximately 10 days, accompanied by low humidity at 34%.
In contrast, February experiences much cooler conditions, with minimum temperatures dropping to -3°C (27°F) and averages at a mild 13°C (55°F). The maximum temperature in February reaches a pleasant 29°C (84°F). Rainfall is less frequent, totaling 34 mm (1.3 in) but occurring over only 4 days, and humidity is significantly higher at 79%. For a closer look at the February weather specifics, you can visit Tucson weather in February.
July and March in Tucson present a stark contrast in weather conditions. In July, temperatures can reach a scorching high of 43°C (110°F), with an average around 31°C (88°F), while March offers much cooler temperatures, ranging from a minimum of 1°C (33°F) to a maximum of 33°C (92°F), and an average of 16°C (62°F). Additionally, July experiences more days of rain, with precipitation occurring on about 10 days and totaling 54 mm (2.1 in), compared to March's modest 15 mm (0.6 in) over just 3 days. The humidity is notably lower in July at 34%, while March is much more humid at 67%. For more detailed information, you can check Tucson weather in March.
When comparing the weather in July and April, notable differences emerge. July experiences significantly higher temperatures, with an average of 31°C (88°F) and a maximum reaching up to 43°C (110°F), contrasting sharply with April's milder average of 22°C (71°F) and a maximum of 37°C (98°F). Additionally, July sees more precipitation, with 54 mm (2.1 in) over 10 days, while April remains notably dry with just 2 mm (0.1 in) recorded over zero days. Humidity levels also differ, as April has higher humidity at 55% compared to July's 34%, contributing to a different overall feel in the air. For a more detailed look at April weather, check Tucson weather in April.
July and May exhibit striking differences in weather patterns. July boasts significantly higher temperatures, with averages soaring to 31°C (88°F) and maximums reaching a sweltering 43°C (110°F), while May's temperatures are much milder, averaging 25°C (78°F) with a maximum of 40°C (104°F). Additionally, July experiences more frequent precipitation, with rain occurring on 10 days and totaling 54 mm (2.1 in), contrasting sharply with May's minimal rainfall of just 3 mm (0.1 in) over just 1 day. Humidity levels in July are lower at 34%, compared to 40% in May, creating a drier heat in mid-summer. For more information, you can check Tucson weather in May.
In comparing the weather between June and July, both months share a similar average temperature of 31°C (88°F). However, June experiences slightly cooler minimum temperatures, starting at 17°C (62°F) compared to July's minimum of 20°C (69°F). Additionally, July sees a notable increase in precipitation, with 54 mm (2.1 in) occurring over 10 days, while June is dry, recording just 8 mm (0.3 in) with no rainy days. Humidity levels remain relatively stable, with June at 33% and July at 34%. For more detailed weather insights, you can visit Tucson weather in June.
In July, temperatures in Tucson can reach a scorching maximum of 43°C (110°F), with an average high of 31°C (88°F) and relatively low humidity at 34%. The month experiences more frequent precipitation, totaling 54 mm (2.1 in) over approximately 10 days. Conversely, August sees slightly lower maximum temperatures at 42°C (108°F) while maintaining a similar average of 31°C (87°F). However, humidity increases to 48%, and precipitation decreases to 35 mm (1.4 in) over about 8 days. For more details on weather patterns, check out Tucson weather in August.
July in Tucson is characterized by significantly higher temperatures, with minimums around 20°C (69°F) and average highs reaching 31°C (88°F), peaking at a scorching 43°C (110°F). The month also experiences more frequent rainfall, averaging 54 mm (2.1 in) over 10 days, coupled with lower humidity at 34%. In contrast, September sees a notable drop in temperatures, with minimums of 13°C (56°F) and average highs at 28°C (83°F), though it can still reach up to 41°C (106°F). Additionally, September experiences less precipitation, totaling just 27 mm (1.1 in) across only 3 days, but the humidity rises significantly to 64%. For more detailed insights into September weather, visit Tucson weather in September.
July and October in Tucson present a striking contrast in weather characteristics. July is characterized by high temperatures, with an average of 31°C (88°F) and a maximum of 43°C (110°F), accompanied by notable humidity at 34% and frequent precipitation on around 10 days, amounting to 54 mm (2.1 in). In contrast, October offers a much cooler climate, featuring an average temperature of 23°C (73°F) and a peak of 38°C (100°F). Additionally, October sees significantly less rain, with just 10 mm (0.4 in) over 2 days, but the humidity increases to 67%. For more details on Tucson's October weather, you can visit Tucson weather in October.
July and November present a stark contrast in weather conditions. In July, temperatures soar with a minimum of 20°C (69°F) and an average peak of 31°C (88°F), reaching as high as 43°C (110°F). The month is characterized by relatively low humidity at 34% and a moderate amount of precipitation, with 54 mm (2.1 in) spread over 10 days. In contrast, November experiences much cooler temperatures, with a minimum of 2°C (36°F) and an average of 17°C (64°F), and a maximum of 33°C (91°F). November is also marked by high humidity levels at 77% and significantly less precipitation, only 14 mm (0.6 in) over just one day. For a detailed look at weather patterns typical for this month, you can refer to Tucson weather in November.
July and December exhibit stark contrasts in weather conditions. July boasts high temperatures, with averages around 31°C (88°F) and peaks reaching up to a blistering 43°C (110°F), while experiencing relatively low humidity at 34%. In contrast, December sees much cooler temperatures, with an average of 12°C (54°F) and nighttime lows dipping to -2°C (29°F). Additionally, December has more humidity at 82% and significantly less precipitation, averaging 27 mm (1.0 in) over just 4 days. For a more detailed look at December weather, you can check out Tucson weather in December.
July in Tucson ushers in the full force of summer, where temperatures soar and the air begins to shimmer under the relentless sun. Unlike other months, the city experiences its hottest days, with averages hovering around the high 30s Celsius, while nights provide a warm respite under the starry sky. With occasional rains, July sees an uptick in humidity, transforming the dry desert air into a moderately sticky warmth that punctuates the season. As the city embraces this intense heat and sporadic downpours, it’s a month that stands out distinctly from Tucson's otherwise more temperate months. To discover more about weather trends throughout the year, check out Tucson Climate.