Last updated: February 24, 2025
August in Galveston, Texas is characterized by warm, sultry conditions, with maximum temperatures reaching up to 32°C (89°F) and an average of 29°C (84°F). The month brings high humidity levels at around 73%, contributing to the tropical feel of the coastal city. While sunny days invite beachgoers, travelers should be prepared for frequent afternoon showers, as the area experiences a notable precipitation of 210 mm (8.3 in) over approximately 18 days. This blend of heat and rain makes August a quintessential summer month in Galveston, offering both sunlit adventures and refreshing breaks from the warmth.
In August, Galveston experiences its warmest temperatures of the year, with minimums consistently at 24°C (75°F), averaging around 29°C (84°F), and peaking at a maximum of 32°C (89°F). This month showcases a trend of gradually rising heat that began in late spring, peaking in the heart of summer. As the days stretch long and sultry, the warmth is complemented by increased humidity, making it a perfect time for beachgoers to enjoy the sun and surf. Following this steamy month, temperatures will begin to cool slightly as the season transitions into autumn, marking a shift in Galveston's climate atmosphere.
In August, Galveston experiences a significant uptick in precipitation, recording an impressive 210 mm (8.3 in) over 18 days. This surge marks one of the wettest months of the year, following a trend of increasing rainfall as summer progresses. Compared to July's 151 mm (5.9 in) across 14 days, August's heightened precipitation underscores the region’s vulnerability to summer storms and tropical weather systems. This pattern continues into September, which further escalates to 243 mm (9.6 in), reflecting the dynamic and often unpredictable Gulf Coast climate. As such, August stands out not only as a month of notable rainfall but also as a precursor to the rainy season that follows.
Throughout the year, Galveston experiences notably high humidity, with January and February often reaching peak levels around 79% to 80%. As spring arrives, April sees a slight increase at 81%, but temperatures begin to rise in the summer months. By August, humidity drops to its annual low of 73%, marking a trend of decreasing moisture levels as summer progresses. Interestingly, this dip in humidity contrasts with the wetter conditions typical of the early and latter parts of the year, where November heightens back to 79% and December peaks at 83%. This cyclical pattern illustrates how Galveston’s coastal climate creates a unique ebb and flow of humidity, shaping the overall weather experience throughout the year.
In August, Galveston experiences a high UV Index of 12, maintaining its position within the extreme exposure category for the third consecutive month. This trend showcases a peak in UV radiation, indicating a burn time of just 10 minutes for those unprotected. With a consistent pattern of high UV levels spanning from April through September, it’s clear that summer months pose significant risks for sun exposure. As the summer heat persists, residents and visitors alike should be vigilant about sun safety. For more detailed insights, check out the Galveston UV Index.
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In August, Galveston basks in 323 hours of sunshine, marking a continuation of the summer's radiant warmth. Following the sunniest months of July and June, which boast 327 and 319 hours respectively, August maintains this vibrant trend, showcasing a typical peak in sunshine hours. As the seasons transition into September, sunshine begins to wane, dropping to 275 hours, yet the lingering summer glow still paints the skies. This pattern highlights Galveston’s appeal during the summer months, inviting visitors to soak up the sun before the cooler autumn breezes set in. The gradual decrease in daylight hours from mid-summer into early fall adds a sense of urgency for sun-seekers looking to enjoy the last rays of summer bliss.
In Galveston, the likelihood of sunny weather in August is relatively low at just 29%, making it one of the cloudier months. This trend follows a notable dip in sunshine that starts as early as June and continues through July, which sees a peak in overcast days. Interestingly, as summer fades into fall, the chance of sun begins to rise again in September and continues to improve, with October boasting a more promising 51% of sunny days. Therefore, while August may lack the sun, just a month later, residents and visitors can look forward to brighter skies.
In August, Galveston enjoys a steady 13 hours of daylight, a continuation of the sun-drenched patterns established over the summer months. As daylight gradually lengthens from January's 10 hours to a peak in late spring and summer, a notable trend emerges where the longest days typically occur in the height of summer. This consistent daylight in August, shared with the preceding months of June and July, provides ample opportunity for beach outings and outdoor activities. As the season transitions into September, the daylight begins to shorten, signaling the gradual shift towards fall, yet for now, the vibrant summer spirit lingers with those warm, sunlit days.
In August, Galveston experiences its lightest breezes of the year, with an average wind speed dropping to 4.1 m/s (9 mph). This marks a significant decline from the breezier days of late spring and early summer, where winds hovered around 6.5 m/s (15 mph) in May and 5.2 m/s (12 mph) in June. As the summer fades, the transition into autumn brings a slight increase in wind speed in September, rising to 4.8 m/s (11 mph). This overall pattern highlights a seasonal shift, where warmer months often present more kinetic energy in the air, giving way to a more tranquil atmosphere as fall approaches. The breeze in August offers a gentle respite, creating perfect conditions for relaxing by the beach or enjoying the picturesque coastal views.
The weather in Galveston changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Galveston and find detailed weather information for every month.
August and January present a stark contrast in weather conditions. In August, temperatures soar with a minimum of 24°C (75°F), reaching an average of 29°C (84°F) and peaking at 32°C (89°F). This month also brings significant rainfall, with approximately 210 mm (8.3 in) spread over 18 days and humidity levels hovering around 73%. In contrast, January experiences much cooler temperatures, starting at a minimum of -2°C (29°F) and averaging 14°C (57°F), with a maximum of 24°C (75°F). Precipitation in January is notably less intense, totaling 90 mm (3.6 in) over just 9 days, though humidity is slightly higher at 79%. For more details on what to expect during this winter month, check out Galveston weather in January.
In comparing the weather of August and February, one can observe stark contrasts. August boasts warm temperatures, with lows around 24°C (75°F) and highs reaching up to 32°C (89°F), accompanied by considerable humidity at 73% and significant rainfall of 210 mm (8.3 in) over 18 days. In contrast, February presents a cooler climate, with temperatures dipping as low as -6°C (22°F) and averaging around 15°C (59°F), while high temperatures cap at 21°C (71°F). Precipitation in February is notably less, totaling 88 mm (3.4 in) across 13 days, but with a higher humidity level of 80%. For a more detailed look at February weather patterns, visit Galveston weather in February.
In comparing the weather of August and March, there is a stark contrast in temperature and precipitation. August tends to be much warmer, with average temperatures around 29°C (84°F) and highs reaching up to 32°C (89°F), while March offers a cooler climate, averaging 18°C (65°F), with maximum temperatures only reaching 24°C (76°F). Additionally, August experiences significantly higher precipitation, with 210 mm (8.3 in) spread over 18 days, compared to March's 58 mm (2.3 in) over just 8 days. Despite the cooler temperatures in March, the humidity remains relatively high at 78%, slightly more than August's 73%. For more detailed information on March weather, you can view Galveston weather in March.
When comparing the weather in August and April, it's clear that August is significantly warmer, with average temperatures reaching 29°C (84°F) and highs peaking at 32°C (89°F), while April sees milder conditions, averaging 21°C (70°F) with a maximum of 27°C (82°F). Additionally, August experiences much higher precipitation levels, with 210 mm (8.3 in) over 18 days, compared to April's 86 mm (3.4 in) spread over just 10 days. Despite August's lower humidity at 73%, it is still quite humid compared to the higher 81% humidity prevalent in April. For more detailed information about April weather, you can check Galveston weather in April.
When comparing the weather in August and May, August is noticeably warmer with minimum temperatures starting at 24°C (75°F) and averaging 29°C (84°F), peaking at highs of 32°C (89°F). In contrast, May experiences cooler conditions, with minimum temperatures around 17°C (62°F) and an average of 25°C (77°F), reaching a maximum of 29°C (85°F). Additionally, August tends to be wetter, receiving 210 mm (8.3 in) of precipitation over an average of 18 days, while May sees 164 mm (6.5 in) of rain across 12 days. Interestingly, despite August's slightly lower humidity at 73%, it is still more settled compared to May's higher humidity at 79%. For a more detailed look at May's climate specifics, check out Galveston weather in May.
In comparing the weather between August and June, both months experience warm temperatures, with August seeing a slight increase in average temperature at 29°C (84°F) compared to June's 27°C (82°F). Both months reach a maximum of 32°C (89°F), but August tends to be more humid, with an average humidity of 73%, slightly above June's 75%. Precipitation levels are also higher in August, with 210 mm (8.3 in) over 18 days, compared to June's 170 mm (6.7 in) over 13 days. For more detailed insights into weather conditions during this time, you can visit Galveston weather in June.
In comparing the weather between July and August, both months experience warm temperatures but with some notable differences. July sees minimum temperatures of 24°C (76°F) and average highs of 33°C (91°F), while August maintains similar minimums at 24°C (75°F) but has an average high of 32°C (89°F). Precipitation is significantly higher in August, with 210 mm (8.3 in) over 18 days compared to July’s 151 mm (5.9 in) over 14 days. Humidity remains fairly constant, with July at 74% and August at 73%. For a closer look at July's weather, you can visit Galveston weather in July.
August and September exhibit notable differences in weather patterns, largely characterized by temperature and precipitation. In August, the temperatures range from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), with an average of 29°C (84°F). The month sees substantial precipitation, totaling 210 mm (8.3 in) over 18 days, and humidity levels hover around 73%. In contrast, September experiences cooler temperatures, with a minimum of 20°C (68°F) and an average of 27°C (81°F), while still reaching the same maximum of 32°C (89°F). However, September has a higher total precipitation of 243 mm (9.6 in), spread over 16 days, and marginally increased humidity at 75%. For a detailed overview of September weather, you can visit Galveston weather in September.
In August, the weather is marked by much warmer temperatures, with averages around 29°C (84°F) and highs reaching up to 32°C (89°F). The month is quite humid, averaging 73% humidity and experiencing significant rainfall, totaling 210 mm (8.3 in) over 18 days. In contrast, October brings a noticeable drop in temperatures, with lows of 11°C (51°F) and a more comfortable average of 24°C (76°F), while still reaching highs of 29°C (85°F). Precipitation is also reduced, with 150 mm (5.9 in) over just 12 days and only slightly higher humidity at 75%. For more details on October weather, visit Galveston weather in October.
In August, the weather is characterized by high temperatures, with a minimum of 24°C (75°F) and an average of 29°C (84°F), reaching up to a high of 32°C (89°F). The month experiences significant precipitation, totaling 210 mm (8.3 inches) over 18 days, coupled with a humidity level of 73%. In contrast, November offers a much cooler climate, with temperatures ranging from a minimum of 5°C (41°F) to an average of 19°C (66°F), peaking at 25°C (78°F). Precipitation in November is considerably less at 77 mm (3.0 inches) over 9 days, and the humidity rises slightly to 79%. For more details, check out Galveston weather in November.
August and December present strikingly different weather conditions. In August, temperatures range from a minimum of 24°C (75°F) to a maximum of 32°C (89°F), with an average of 29°C (84°F). This month is characterized by high humidity at 73% and substantial rainfall of 210 mm (8.3 in) over 18 days. In contrast, December sees much cooler temperatures, with a minimum of 4°C (40°F), an average of 16°C (61°F), and a maximum of 23°C (74°F). Precipitation is notably reduced to 104 mm (4.1 in) over just 10 days, and humidity rises slightly to 83%. For a more detailed look at December weather, you can visit Galveston weather in December.
August in Galveston is characterized by warm temperatures and considerable humidity, setting it apart from other months. With an average temperature hovering around 29°C (84°F), the heat intensifies, and rainfall becomes more frequent, leading to an average of 18 rainy days that month. This significant precipitation, totaling 210 mm (8.3 in), contrasts sharply with the drier stretches of earlier summer, making August a month where sunny beach days can quickly transform into refreshing summer showers. For those planning a visit, it's essential to be prepared for the volatile weather changes typical of this time. For more about what to expect throughout the year, check out Galveston Climate.