Last updated: February 24, 2025
June in San Antonio offers a vibrant summer experience, with maximum temperatures soaring up to 39°C (103°F) and a comfortable average of 28°C (83°F). The nights cool off pleasantly, dipping to a minimum of 18°C (64°F). While visitors can bask in the warmth, they may also encounter occasional rain, as the month records 78 mm (3.1 in) of precipitation spread over 12 days. Coupled with a humidity level of 76%, the weather creates a typical sultry atmosphere perfect for enjoying both indoor and outdoor activities in this dynamic Texas city.
In June, San Antonio experiences a noticeable shift towards warmer weather, with temperatures showcasing the peak of summer. The month starts off with a minimum temperature of 18°C (64°F) and an average of 28°C (83°F), steadily climbing to a sweltering maximum of 39°C (103°F). This pattern reflects a consistent increase from the milder temps of previous months, particularly May, where highs reached 37°C (99°F). As June unfolds, the heat intensifies, hinting at the sizzling summer days ahead, ensuring that residents and visitors alike prepare for a vibrant Texan summer filled with sunshine and outdoor activities.
In June, San Antonio experiences a significant shift in precipitation patterns, with 78 mm (3.1 in) of rain typically falling over 12 days. This marks a decrease from the substantially wetter month of May, which recorded 130 mm (5.1 in) over 15 days. As spring transitions to summer, June’s rainfall provides a crucial reprieve from the heat, yet it's notably less than the impressive totals seen in the preceding months. Interestingly, this mid-year precipitation level aligns more closely with what is observed in July, emphasizing a trend where early summer months share similar atmospheric behaviors. The rainfall not only nourishes the local flora but also prepares the region for the drier August ahead, showcasing the delicate balance of San Antonio’s climatic rhythm.
June humidity in San Antonio exhibits a notable shift, measuring 76%, which is a slight decrease from the higher levels seen in May at 81%. This transition marks the beginning of a gradual decline in humidity as the region moves towards the hotter summer months, with July recording an even lower 66%. Over the year, humidity tends to peak in the winter and early spring, followed by a drop during the height of summer. Notably, the months of January and February maintain a consistent high at 79%, while late fall shows an increase again, with November reaching 81%. This cyclical pattern underscores San Antonio's diverse climatic characteristics, where humidity plays a significant role in shaping both temperature perceptions and comfort levels throughout the year.
As summer arrives, **San Antonio's UV Index reaches peak levels, hitting a significant 12 in June. This positions the city in the extreme exposure category, with a minimal burn time of just 10 minutes. The trend through the warmer months reveals a consistent rise in UV intensity, with both May and June recording the highest values, mirroring the extreme conditions also seen in July and August. As temperatures soar, residents and visitors alike should take heed of the increasing UV risk and take necessary precautions to protect their skin. For more detailed information, check out the San Antonio UV Index.
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June in San Antonio is a glorious showcase of sunshine, boasting an impressive 325 hours of bright, sunny days. This marked increase in daylight follows a steady rise from earlier months, with May already setting the stage with 276 hours of sunshine. The transition into June highlights a peak in sunlight that continues into July, which records the highest hours of the year at 344 hours. As the summer unfolds, the vibrant energy of the sun not only elevates outdoor activities but also brings a refreshing warmth that invites residents and visitors alike to revel in the beauty of San Antonio's summer charm. This delightful trend in sunny hours peaks in the heart of summer, promising long, bright days filled with adventure and relaxation.
In San Antonio, the likelihood of sunny weather sees some intriguing shifts throughout the year. While January boasts a healthy 59% chance of sunshine, this starts to dip, reaching its low point in May at just 34%. As we move into June, the chances slightly recover to 44%, hinting at a mix of sunny days among the warmer summer months ahead. Interestingly, July and August mirror May’s trend with another drop to 34% and 40%, respectively, suggesting that while summer heats up, clear skies may not be as frequent. In contrast, September welcomes back the sunshine with a robust 61%, indicating that fall in San Antonio is likely to be more radiant than the early summer months.
As summer unfolds in San Antonio, the city experiences a delightful 13 hours of daylight in both June and the months surrounding it, allowing residents and visitors alike to soak in the sun and engage in outdoor activities. This peak in daylight duration follows a gradual increase from 10 hours in January to its zenith in late spring; by June, the days are vibrant and long. Interestingly, the sunlight begins to wane slightly as the year progresses, with daylight tapering back to 12 hours by September and further down to 10 hours by December. This cyclical dance of daylight highlights the essence of San Antonio’s seasonal transitions, fostering a rich environment for various summer festivities and experiences.
In June, San Antonio experiences a slight dip in average wind speed, dropping to 3.0 m/s (7 mph) from the higher speeds of the spring months. This trend reflects a gradual decrease in winds as summer approaches, with July and August seeing even lower averages of 2.6 m/s (6 mph). Notably, the early months of the year showcase a pattern of increasing wind, peaking in March at 4.0 m/s (9 mph), before tapering off into the summer heat. The steady decline in wind speeds highlights the transition from the more brisk springtime breezes to the warmer, calmer summer days typical of San Antonio, creating an inviting atmosphere for outdoor activities amidst the rising temperatures.
The weather in San Antonio changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of June's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in San Antonio and find detailed weather information for every month.
In June, the weather is typically much warmer, with temperatures ranging from a minimum of 18°C (64°F) to a scorching average of 28°C (83°F) and peaking at 39°C (103°F). The month also sees considerable humidity at 76% and experiences precipitation on about 12 days, totaling 78 mm (3.1 in). In contrast, January brings a much cooler climate, with temperatures dipping as low as -7°C (20°F) and averaging 11°C (53°F), reaching a high of 27°C (81°F). Although January is relatively dry, with only 44 mm (1.7 in) of precipitation over 6 days, the humidity remains slightly elevated at 79%. For more detailed insights, you can check San Antonio weather in January.
June and February exhibit vastly different climates, showcasing the diversity of seasonal weather patterns. In June, temperatures range from a minimum of 18°C (64°F) to a scorching maximum of 39°C (103°F), with an average of 28°C (83°F). The month experiences moderate precipitation, totaling 78 mm (3.1 in) across about 12 days, while humidity remains high at 76%. In contrast, February presents a much cooler atmosphere with temperatures that can dip to -12°C (10°F) at night, peaking at 31°C (87°F) during the day, for an average of 13°C (55°F). This month has a lower precipitation rate of 58 mm (2.3 in) over approximately 10 days and a slightly higher humidity level of 79%. For further details on the unique climate patterns during February, check out San Antonio weather in February.
In comparing the weather of June and March, it's evident that June is significantly warmer, with average temperatures reaching 28°C (83°F) compared to March's 18°C (65°F). June features a broad temperature range with highs potentially soaring up to 39°C (103°F), while March peaks at a much milder 33°C (91°F). Additionally, June experiences more precipitation, totaling 78 mm (3.1 in) over approximately 12 days, whereas March records 62 mm (2.5 in) over 9 days. Humidity remains relatively high in both months, with June at 76% and March slightly lower at 74%. For more detailed information about March's conditions, visit San Antonio weather in March.
In comparing the weather between April and June, it's clear that June is significantly warmer, with average temperatures soaring to 28°C (83°F) and reaching highs of up to 39°C (103°F). In contrast, April boasts a much cooler average of 21°C (70°F), with a maximum temperature of 35°C (95°F). Though both months experience similar levels of humidity at 76%, June sees slightly more precipitation, totaling 78 mm (3.1 in) over approximately 12 days, compared to April's 71 mm (2.8 in) across 8 days. For more details on April's weather, you can visit San Antonio weather in April.
In June, the temperatures rise significantly compared to May, with minimums of 18°C (64°F) and averages reaching 28°C (83°F), peaking at a sweltering 39°C (103°F). In contrast, May experiences cooler temperatures, with nighttime lows of 11°C (51°F) and an average of 25°C (77°F), while the maximums are slightly lower at 37°C (99°F). Rainfall also decreases in June, totaling 78 mm (3.1 in) over 12 rainy days, compared to May’s higher precipitation of 130 mm (5.1 in) across 15 days. Additionally, while humidity remains relatively high in both months, June sees a slight drop to 76% from May's 81%. For a detailed look at the weather patterns, you can visit San Antonio weather in May.
In June, the weather is characterized by a minimum temperature of 18°C (64°F) and an average temperature of 28°C (83°F), with a maximum reaching up to 39°C (103°F). The month experiences about 78 mm (3.1 in) of precipitation spread over 12 days, leading to a relatively high humidity level of 76%.
In contrast, July sees slightly lower minimum temperatures at 17°C (64°F) and a marginally higher average temperature of 29°C (85°F), with maximum temperatures peaking at 41°C (106°F). July also has reduced precipitation, totaling 69 mm (2.7 in) over just 8 days, and the humidity drops to a more comfortable 66%. For more detailed information, you can visit San Antonio weather in July.
June and August both experience warm temperatures, but August is generally slightly warmer with an average of 30°C (86°F) compared to June's 28°C (83°F). Both months can reach highs of 39-40°C (103°F), but June sees more precipitation, receiving 78 mm (3.1 in) over 12 days, while August has just 56 mm (2.2 in) over 6 days. Additionally, the humidity in June is higher at 76%, making the weather feel more oppressive, whereas August has a more comfortable humidity level of 58%. For more detailed information, check out San Antonio weather in August.
June and September both experience warm temperatures, with highs reaching up to 39°C (103°F) in June and 39°C (102°F) in September. However, June typically has a higher average temperature of 28°C (83°F) compared to September's average of 27°C (80°F). In terms of precipitation, September is notably wetter, receiving 117 mm (4.6 in) over 10 days, while June sees 78 mm (3.1 in) across 12 days. Additionally, humidity is higher in June at 76%, compared to September's 65%. For a detailed look at September weather, check out San Antonio weather in September.
June and October present contrasting weather patterns. In June, temperatures are notably higher, with an average of 28°C (83°F) and maximums reaching up to 39°C (103°F). The month experiences substantial humidity at 76%, accompanied by approximately 78 mm (3.1 in) of precipitation over 12 days. In contrast, October offers a milder climate with an average temperature of 22°C (72°F) and minimums dropping to 3°C (37°F), a significant decrease from the summer months. While October receives slightly more rainfall at 89 mm (3.5 in), it enjoys a lower humidity level of 74% and slightly fewer rainy days, totaling 10. For more detailed insights, you can explore San Antonio weather in October.
June and November present striking contrasts in weather patterns. In June, temperatures can soar from a minimum of 18°C (64°F) to a sizzling maximum of 39°C (103°F), with an average around 28°C (83°F). This month experiences significant humidity at 76% and receives about 78 mm (3.1 in) of precipitation over approximately 12 days. In contrast, November boasts cooler temperatures, ranging from -4°C (25°F) to a pleasant maximum of 32°C (90°F), with an average temperature of 16°C (61°F). Precipitation is less frequent, totaling 46 mm (1.8 in) over just 6 days, while humidity increases slightly to 81%. For more details, you can check out San Antonio weather in November.
June and December present a striking contrast in weather conditions. In June, temperatures soar with a minimum of 18°C (64°F) and can reach a sweltering maximum of 39°C (103°F), accompanied by high humidity at 76% and substantial rainfall of 78 mm (3.1 in) over 12 days. In contrast, December experiences a much cooler climate, where temperatures dip to a minimum of -3°C (27°F) and average around 13°C (56°F), with a pleasant maximum of 29°C (85°F). Additionally, December has less rainfall at 57 mm (2.3 in) over just 7 days and a slightly higher humidity of 86%. For more detailed information on December weather specifics, visit San Antonio weather in December.
As June unfolds in San Antonio, the city experiences a notable shift in weather compared to the preceding months. The temperatures soar, often peaking at sweltering levels, while the humidity climbs to a muggy 76%, making the air feel heavier. Rainfall becomes more frequent, with occasional storms punctuating the warm days, leading to around 12 days of precipitation throughout the month. This blend of heat and humidity not only marks June as one of the hottest months of the year but also sets the stage for the vibrant summer atmosphere. For a deeper dive into the climate dynamics of this lively city, check out San Antonio Climate.