Last updated: February 24, 2025
In July, Grand Isle, United States, experiences a warm summer climate characterized by an average temperature of 28°C (83°F), with daily highs reaching up to 32°C (90°F) and lows around 25°C (77°F). This month is also marked by significant precipitation, accumulating 232 mm (9.2 in) over 19 days, leading to a humidity level of 74% that enhances the sultry atmosphere. Visitors should be prepared for occasional rain while enjoying the island's vibrant summer charm.
In July, Grand Isle truly embraces summer warmth, with temperatures reaching a minimum of 25°C (77°F) and soaring to a maximum of 32°C (90°F). The average temperature sits comfortably at 28°C (83°F), creating a vibrant atmosphere perfect for beach activities and outdoor adventures. This month marks a clear trend of higher temperatures, building on the warmth of June, and is indicative of the peak summer season. With the ocean's allure and the sultry heat, July invites visitors to soak up the sun while relishing the laid-back coastal vibe that Grand Isle is known for.
In July, Grand Isle experiences a significant spike in precipitation, measuring 232 mm (9.2 in), making it one of the wettest months of the year. This surge is accompanied by 19 days of rainfall, reflecting a notable increase from the previous months. Following the earlier peak in June with 195 mm (7.7 in) over 15 days, the summer season truly showcases its torrential character. The trend of increasing precipitation continues into August, which tallies even higher at 298 mm (11.7 in) over 23 days, signifying a pattern of robust summer storms. This period not only emphasizes the dynamics of Louisiana's climate but also serves as a reminder of the region's resilience against heavy rains.
In July, Grand Isle experiences a moderate humidity level of 74%, which mirrors the slight dip seen in June and continues a trend of decreasing humidity through the summer months. While January and February hold steady with consistent humidity levels around 81%, the progression towards the peak of summer reveals a gradual decline, peaking in July before it further decreases to 73% in August. This shift suggests that while July is still quite humid, the air begins to feel a bit dryer as the summer season approaches its end. Overall, the pattern indicates a summer transition, with high humidity giving way to more breathable air as fall approaches.
In July, visitors to Grand Isle can expect the UV Index to reach an intense 12, maintaining its position in the extreme exposure category alongside June and August. This heightened level of UV radiation means that even brief sun exposure can lead to skin burns in just 10 minutes. As summer peaks, it's essential to prioritize sun safety by applying sunscreen, wearing protective clothing, and seeking shade during peak hours. Comparatively, earlier months saw a gradual rise in UV intensity, starting at a moderate 5 in January and escalating to the extreme levels recorded from April onwards. For those planning outdoor activities, staying informed about the UV Index is crucial; you can find more details at Grand Isle UV Index.
UV Risk Categories
July in Grand Isle shines brightly, contributing 313 hours of glorious sunshine, making it one of the sunniest months of the year. As summer peaks, this solar abundance follows a trend seen since the beginning of the year, with sunlight steadily increasing from 191 hours in January to a delightful 334 hours in May. Although June takes a slight dip to 311 hours, July maintains a robust brightness, closely mirroring its predecessor. As we transition to August with 312 hours, the sun continues to grace Grand Isle, underscoring the area's reputation as a radiant summer destination. This continuum not only captures the essence of summer but also invites locals and visitors alike to bask in the sunlit splendor.
In Grand Isle, the chances of sunny weather can be quite fickle throughout the year. July, in particular, sees a low probability of sunshine at just 27%, marking it as one of the cloudier months. This is a stark contrast to the clearer skies of January (51%) and November (64%), suggesting that summer might not be as bright as one would hope. Interestingly, while April offers a refreshing 53% chance of sun, the trend dips sharply in midsummer, with June following closely behind at 29%. This fluctuation highlights a seasonal shift where early summer is often more overcast, making it essential for visitors to plan accordingly if they're hoping for sunny beach days.
In Grand Isle, United States, July enjoys a delightful 13 hours of daylight, a continuation of the extended sunlight that characterizes the summer months. This trend marks a peak that began in late spring; from May through July, residents revel in long, bright days that foster a vibrant outdoor lifestyle. As the summer progresses into August, daylight remains steady at 13 hours, signaling that the warm season lingers. However, come September, daylight begins to taper off, heralding the transition to autumn with shorter days ahead. This gradual fading of light reminds us of nature's rhythm, where each season brings its unique charm.
In July, Grand Isle experiences a notable dip in wind speed, averaging just 3.8 m/s (9 mph), making it the calmest month of the year. This decline contrasts sharply with the breezier months of spring, which hover around 6.0 to 6.5 m/s. As summer peaks, the coastal gales give way to a more tranquil atmosphere, allowing for quiet beach days and leisurely outdoor activities. Interestingly, conditions begin to shift again in August, when the wind picks up to 4.8 m/s (11 mph), signaling a return to more refreshing breezes. Overall, July stands out as a serene interlude in Grand Isle's wind patterns, perfect for those seeking a softer summer experience by the shore.
The weather in Grand Isle 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 Grand Isle and find detailed weather information for every month.
In July, the weather is characterized by warm temperatures, with a minimum of 25°C (77°F) and averages around 28°C (83°F), peaking at 32°C (90°F). This month also sees substantial rainfall, with approximately 232 mm (9.2 in) spread over 19 days, and a humidity level of 74%. In contrast, January offers a much cooler climate, where temperatures range from a minimum of 0°C (33°F) to an average of 15°C (59°F), with a maximum of 24°C (76°F). The precipitation in January is significantly lower, totaling 100 mm (3.9 in) over just 8 days, while the humidity slightly increases to 81%. For more details on January weather, visit Grand Isle weather in January.
When comparing the weather in July and February, it's clear that they present vastly different climates. July boasts much warmer temperatures, with minimums around 25°C (77°F) and averages reaching 28°C (83°F), peaking at 32°C (90°F). The month is also quite humid, averaging 74% humidity, and sees significant rainfall totaling 232 mm (9.2 in) over 19 days. In contrast, February experiences much cooler conditions; temperatures range from a chilly 0°C (32°F) at the minimum to a comfortable average of 17°C (62°F), with a maximum of 24°C (76°F). Precipitation in February is considerably lower, at 95 mm (3.8 in) spread over 12 days, accompanied by a higher humidity level of 81%. For a more detailed look at February weather, you can check out Grand Isle weather in February.
In comparing the weather between July and March, it's clear that July is significantly warmer, with minimum temperatures around 25°C (77°F) and an average of 28°C (83°F), reaching highs of 32°C (90°F). In contrast, March experiences much cooler temperatures, with a minimum of 6°C (43°F) and an average of 19°C (66°F), peaking at 26°C (78°F). Additionally, July sees more precipitation, with 232 mm (9.2 in) falling over 19 days, compared to March's 65 mm (2.6 in) over just 8 days. Interestingly, humidity levels in July are slightly lower at 74%, while March registers a higher humidity at 79%. For more detailed information, visit Grand Isle weather in March.
In comparison to July, April presents a notably milder climate with average temperatures hovering around 21°C (71°F), significantly lower than July's warmer average of 28°C (83°F). April experiences minimum temperatures of 12°C (54°F) and max temperatures of 26°C (79°F), while July's minimums begin at 25°C (77°F) and can reach highs of 32°C (90°F). Additionally, April sees considerably less precipitation, with 106 mm (4.2 in) recorded over 9 days, compared to July's much heavier rainfall of 232 mm (9.2 in) across 19 days. Interestingly, while April's humidity remains high at 81%, July's humidity is slightly lower at 74%. For more detailed information, you can check Grand Isle weather in April.
In comparing the weather of July and May, July emerges as significantly warmer, with average temperatures reaching 28°C (83°F) compared to May's 25°C (77°F). The maximum temperature in July can soar to 32°C (90°F), while May peaks at a slightly cooler 29°C (85°F). Additionally, July is notably wetter, with 232 mm (9.2 in) of precipitation spread over 19 days, in contrast to May’s 99 mm (3.9 in) over just 10 days. Interestingly, humidity levels are quite similar, with July at 74% and May at 77%, creating a sticky atmosphere throughout both months. For more specific details about weather conditions in May, you can explore Grand Isle weather in May.
In comparing the weather between July and June, July tends to be slightly warmer, with average temperatures reaching 28°C (83°F) compared to June's average of 27°C (81°F). The maximum temperatures in July can peak at 32°C (90°F), just above June's maximum of 31°C (87°F). However, July also experiences more rainfall, with 232 mm (9.2 inches) of precipitation over 19 days, while June sees 195 mm (7.7 inches) of rain over 15 days. Interestingly, both months maintain the same level of humidity at 74%. For a more detailed look at June's weather, you can refer to Grand Isle weather in June.
In comparing the weather between July and August, both months share similar temperature ranges, with minimums around 25°C (77°F) and average highs peaking at 28°C (83°F). However, July experiences a slightly warmer maximum temperature of 32°C (90°F) compared to August's 31°C (88°F). Precipitation increases in August, with a total of 298 mm (11.7 in) over 23 days, contrasting with July's rainfall of 232 mm (9.2 in) over 19 days. Humidity remains fairly consistent, with July at 74% and August slightly lower at 73%. For more details, check out Grand Isle weather in August.
In comparing the weather of July and September, July typically experiences warmer temperatures with a minimum of 25°C (77°F) and an average of 28°C (83°F), compared to September's minimum of 21°C (70°F) and an average of 27°C (81°F). Both months can reach a maximum of 32°C (90°F in July and 91°F in September), but July sees a significantly higher amount of precipitation at 232 mm (9.2 in), occurring over 19 days, whereas September has 166 mm (6.5 in) of rain over 15 days. Additionally, the humidity is slightly higher in September at 79%, compared to July's 74%. For more detailed climate insights, you can check Grand Isle weather in September.
In July, temperatures in Grand Isle soar with a minimum of 25°C (77°F) and an average high of 32°C (90°F), accompanied by significant rainfall totaling 232 mm (9.2 in) over 19 days, creating a humid atmosphere with levels around 74%. In contrast, October offers a cooler climate, with a minimum temperature of 12°C (54°F) and an average high of 29°C (84°F). The precipitation decreases to 128 mm (5.0 in) over just 13 days, while humidity remains slightly higher at 77%. For more detailed insights into October weather, you can visit Grand Isle weather in October.
In contrast to the sweltering heat of July, which boasts minimum temperatures around 25°C (77°F) and averages 28°C (83°F), November brings a significant drop in temperature, with minimums dipping to 7°C (45°F) and averages of 19°C (67°F). While July is marked by high humidity at 74% and considerable rainfall of 232 mm (9.2 in) over 19 days, November sees a more manageable humidity level at 81% and significantly less precipitation, totaling just 56 mm (2.2 in) over 6 days. This shift in weather not only alters daily activities but also enhances the overall ambiance of the seasons. For those interested in exploring more about the weather during this transitional month, check out Grand Isle weather in November.
The weather in July can be quite oppressive, with average temperatures hovering around 28°C (83°F) and high humidity levels of 74%. This month is characterized by frequent rainfall, totaling 232 mm (9.2 in) over approximately 19 days, making it one of the wettest months of the year. In contrast, December offers a much milder climate, with average temperatures dropping to around 17°C (62°F) and a significant reduction in precipitation, measuring just 109 mm (4.3 in) over 10 days. The humidity in December rises slightly to 84%, contributing to a cooler, more comfortable feel overall. For more details on the specific weather patterns during this time, check out Grand Isle weather in December.
In July, Grand Isle experiences a vibrant yet humid climate that sets it apart from other months. With warm temperatures averaging around 28°C and reaching as high as 32°C, this month embodies the peak of summer, enticing visitors with a mix of warmth and the occasional afternoon shower. The 232 mm of precipitation over 19 days indicates that July is wetter than many other months, contributing to the lush landscapes that surround the island. The 74% humidity adds a tropical feel, making evenings particularly pleasant for relaxation by the bay. For a more detailed look at how July fits into the broader climate of the region, check out Grand Isle Climate.