Last updated: February 24, 2025
Grand Isle, United States, experiences a captivating January marked by an average temperature of 15°C (59°F), making it a cool escape for visitors. Daily highs can reach a pleasant 24°C (76°F), while nighttime temperatures can drop to a chilly 0°C (33°F). This month is also characterized by a moderate precipitation amount of 100 mm (3.9 in), occurring on about 8 days, contributing to the lush coastal ecosystem. With humidity levels averaging 81%, the air feels refreshingly crisp, inviting exploration of the island's natural beauty amid the winter charm.
In January, Grand Isle, United States, experiences a mild winter, with temperatures ranging from a chilly 0°C (33°F) at night to a pleasant 24°C (76°F) during the day. The average temperature sits comfortably at around 15°C (59°F), making it one of the more temperate months of the year. As winter transitions into spring, the trend in February shows slightly warmer nights with lows of 0°C (32°F) and a touch more warmth in the daytime, maintaining highs of 24°C (76°F). This gradual warming continues into March, where the minimum temperature rises to 6°C (43°F) and daytime highs reach 26°C (78°F). This pattern of increasing temperatures hints at the impending arrival of spring and the delightful warmth that will accompany the subsequent months.
In January, Grand Isle experiences an average precipitation of 100 mm (3.9 in) over approximately 8 days, setting the stage for a wetter winter. This trend indicates a relatively stable start to the year, with rainfall slightly higher than in the following month, February, which sees 95 mm (3.8 in) over 12 days. As winter transitions into spring, precipitation begins to fluctuate, peaking mid-year; notably, June and August stand out with 195 mm (7.7 in) and 298 mm (11.7 in), respectively, revealing a significant uptick in rainfall during warmer months. This seasonal pattern showcases Grand Isle's distinct climate, where the winter months cut through the summer's heavier deluge, creating a diverse weather cycle that supports both lush landscapes and vibrant ecosystems.
In January, Grand Isle experiences a notable humidity level of 81%, which remains consistent into February. This high humidity persists into April as well, creating a tropical feel early in the year. However, there is a slight dip in March to 79%, hinting at a subtle shift in weather patterns as spring approaches. As the months progress toward summer, humidity levels gradually decrease, reaching their lowest in August at 73%, before inching back up in the fall. By December, the humidity peaks again at 84%, suggesting a cyclical pattern where high levels dominate both the winter and late fall months, while a slight reprieve occurs during the warm summer. This trend highlights Grand Isle's characteristic moist climate, which plays a pivotal role in shaping its unique environment.
In Grand Isle, January brings a moderate UV Index of 5, with a burn time of around 30 minutes. This relatively gentle exposure is a precursor to the dramatic uptick in UV levels that follows. As the months progress into February and March, the UV Index soars to 8 and 9, classified as very high, shrinking the safe exposure time to just 15 minutes. By April, the sun's intensity reaches extreme levels, peaking at 11 and requiring vigilance with a mere 10-minute threshold for safe sun exposure. This pattern persists through the summer months of June, July, and August, where the UV Index escalates to 12, demanding utmost caution. As autumn rolls in, the UV strength begins to wane but remains significant. Overall, the trend in Grand Isle demonstrates a clear seasonal shift from moderate UV conditions in winter to extreme exposure in the summer, emphasizing the importance of sun safety throughout the year. For more detailed information, visit Grand Isle UV Index.
UV Risk Categories
January in Grand Isle, United States, greets visitors with 191 hours of sunshine, marking the beginning of the year with a gentle glow. As winter transitions to spring, the sun's presence steadily increases, peaking in May with an impressive 334 hours. This trend continues, with months like March and April also enjoying significant sun exposure at 287 and 292 hours respectively. The summer months maintain a healthy balance of sunshine, hovering between 311 and 313 hours. However, as the year draws to a close, November and December experience a decline in sunlight, with 263 and 230 hours respectively. Overall, Grand Isle showcases a vibrant spectrum of sunshine, inviting visitors to bask in the warm glow throughout the year.
In Grand Isle, January boasts a 51% chance of sunny weather, making it one of the brighter months in the winter season. This percentage highlights a notable trend, as the likelihood of sunshine tends to dip in the subsequent months, with February falling to 41% and March even lower at 38%. Interestingly, the chances begin to bounce back in April, reaching 53%, which suggests a transition towards sunnier skies as spring approaches. The fluctuation in sunshine probabilities throughout the year paints a vivid picture of Grand Isle's climate, where January stands out as a relatively favorable time for those seeking rays amid the winter chill.
In Grand Isle, United States, January marks the beginning of the year with a daylight duration of 10 hours, gradually increasing as the months progress. February brings an additional hour of daylight, enhancing the brightness of the winter months. As spring approaches in March, the daylight expands to 12 hours, a trend that continues into April, where the light invigorates the landscape. By May and through the peak of summer in June, residents can bask in a full 13 hours of sunshine, creating an ideal backdrop for outdoor activities. However, as summer wanes in August, daylight begins to taper off, reflecting a seasonal rhythm that sees 12 hours of sunshine in September. This decline continues into the fall, with daylight shortening to 10 hours again by November and December, bringing the cycle full circle. Such trends illustrate the ebb and flow of daylight in Grand Isle, inviting both reflection and appreciation of nature’s changing seasons.
In Grand Isle, the January winds usher in the year with an average speed of 6.0 m/s (13 mph), setting a brisk yet manageable tone for the months ahead. As winter gives way to spring, wind speeds gradually increase, peaking at 6.5 m/s (15 mph) in March, before slightly declining through the warmer months. April and May hold steady with mid-range winds around 6.3 m/s (14 mph) and 6.1 m/s (14 mph), while the summer sees a significant dip, with July experiencing its calmest period at just 3.8 m/s (9 mph). This tranquil summer air is interrupted by a gradual return to livelier winds as autumn approaches, stabilizing at around 5.0 to 5.2 m/s (11 to 12 mph) into the final months of the year. Overall, the trend reveals a dance of varying breezes, transitioning from brisk winter winds to serene summer calm before regaining strength in the fall.
The weather in Grand Isle changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January'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 January, the weather features a temperature range from a minimum of 0°C (33°F) to a maximum of 24°C (76°F), with an average temperature of 15°C (59°F). The month experiences about 100 mm (3.9 in) of precipitation over approximately 8 days, along with a consistent humidity level of 81%.
In contrast, February sees a slight increase in average temperature, rising to 17°C (62°F), while the maximum remains the same at 24°C (76°F). The overall precipitation decreases slightly to 95 mm (3.8 in), but the number of rainy days increases to 12. Humidity continues to hold steady at 81%.
For a closer look at February's climate specifics, you can visit Grand Isle weather in February.
In January, the weather tends to be cooler with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 24°C (76°F) and an average of 15°C (59°F). This month also experiences a significant amount of precipitation, totaling 100 mm (3.9 in) over about 8 days, alongside a high humidity level of 81%.
In contrast, March sees a gradual warming, with temperatures rising to a minimum of 6°C (43°F) and a maximum of 26°C (78°F), averaging 19°C (66°F). Precipitation decreases to 65 mm (2.6 in) over the same number of rainy days, and humidity slightly declines to 79%.
For a detailed insight into specific weather conditions, you can check Grand Isle weather in March.
In comparing the weather between January and April, we see a notable shift in temperatures and precipitation patterns. January experiences cooler temperatures, with a minimum of 0°C (33°F) and an average of 15°C (59°F), while April enjoys milder conditions, starting at a minimum of 12°C (54°F) and averaging 21°C (71°F). Although April has slightly more precipitation at 106 mm (4.2 in) over 9 days compared to January’s 100 mm (3.9 in) over 8 days, both months maintain a consistent humidity level of 81%. For a detailed look at the weather specifics for April, you can check out Grand Isle weather in April.
In January, the weather is characterized by cooler temperatures, with a minimum of 0°C (33°F) and an average of 15°C (59°F), reaching a maximum of 24°C (76°F). The month sees around 100 mm (3.9 in) of precipitation over approximately 8 days, along with relatively high humidity levels at 81%. In contrast, May brings much warmer conditions with a minimum temperature of 17°C (63°F) and an average of 25°C (77°F), peaking at 29°C (85°F). Despite a similar amount of precipitation at 99 mm (3.9 in) over about 10 days, humidity drops slightly to 77%. For a detailed look at the weather in May, visit Grand Isle weather in May.
In January, the weather is considerably cooler, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 24°C (76°F) and an average of 15°C (59°F). The month sees about 100 mm (3.9 in) of precipitation over 8 days, accompanied by higher humidity levels at 81%. In stark contrast, June exhibits a much warmer climate, with temperatures fluctuating between 24°C (75°F) and 31°C (87°F) and an average of 27°C (81°F). Precipitation increases to 195 mm (7.7 in) across 15 days, although humidity dips to 74%. For more detailed information on weather patterns, you can check out Grand Isle weather in June.
In January, temperatures in Grand Isle range from a chilly minimum of 0°C (33°F) to a comfortable maximum of 24°C (76°F), with an average temperature of 15°C (59°F). The month experiences around 100 mm (3.9 in) of precipitation over approximately 8 days, with humidity levels at a high 81%. In contrast, July boasts significantly warmer temperatures, with a minimum of 25°C (77°F) and an average of 28°C (83°F), peaking at 32°C (90°F). The summer month records higher precipitation at 232 mm (9.2 in) over 19 days, accompanied by slightly lower humidity at 74%. For more details, you can explore Grand Isle weather in July.
In January, the weather tends to be significantly cooler, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 24°C (76°F) and an average of 15°C (59°F). The month sees about 100 mm (3.9 in) of precipitation over approximately 8 days, accompanied by a high humidity level of 81%. In contrast, August boasts much warmer temperatures, with a minimum of 25°C (77°F) and a maximum of 31°C (88°F), averaging around 28°C (83°F). This month experiences more rainfall, totaling 298 mm (11.7 in) across 23 days, although humidity is slightly lower at 73%. For a detailed look at August weather, you can refer to Grand Isle weather in August.
When comparing the weather in January and September, distinct differences emerge. January experiences cooler temperatures, with a minimum of 0°C (33°F) and an average of 15°C (59°F), making it feel quite brisk. In contrast, September boasts warmer conditions, with temperatures ranging from a minimum of 21°C (70°F) to an average of 27°C (81°F), reaching as high as 32°C (91°F). January also has lower precipitation, with 100 mm (3.9 in) over 8 days, whereas September sees an increase in rain, accumulating 166 mm (6.5 in) over 15 days. Interestingly, despite the higher rainfall in September, the humidity remains quite similar, hovering around 79%, compared to January’s 81%. For more detailed information about September's climate, you can check Grand Isle weather in September.
In January, the weather tends to be milder with temperatures ranging from a chilly minimum of 0°C (33°F) to a pleasant maximum of 24°C (76°F) and an average of 15°C (59°F). The month experiences about 100 mm (3.9 in) of precipitation over 8 days, accompanied by relatively high humidity levels at 81%. In contrast, October brings warmer conditions, with temperatures starting at a minimum of 12°C (54°F) and peaking at 29°C (84°F), averaging 25°C (77°F). The precipitation increases slightly to 128 mm (5.0 in) over 13 days, but the humidity is lower at 77%. For a more detailed look at October's weather, you can explore Grand Isle weather in October.
In comparing the weather between January and November, January tends to be cooler, with minimum temperatures dropping to 0°C (33°F) and an average of 15°C (59°F), while November experiences milder temperatures, starting at a minimum of 7°C (45°F) and averaging 19°C (67°F). The maximum temperature in January peaks at 24°C (76°F), which is slightly lower compared to November's maximum of 26°C (79°F). While January sees more precipitation at 100 mm (3.9 in) over 8 days, November has relatively less rainfall, totaling 56 mm (2.2 in) over just 6 days. Both months share the same humidity level of 81%, contributing to a consistently damp atmosphere. For more detailed insights into November weather, you can visit Grand Isle weather in November.
In January, the weather tends to be slightly cooler than in December, with minimum temperatures dropping to around 0°C (33°F) compared to December's minimum of 6°C (43°F). Both months experience similar maximum temperatures of around 24°C (75-76°F), but January has a lower average temperature of 15°C (59°F) versus December's average of 17°C (62°F). Precipitation levels are also comparable, with January receiving 100 mm (3.9 in) over about 8 days, while December sees 109 mm (4.3 in) across 10 days. Humidity is slightly lower in January at 81% compared to December's 84%. For more information, check out Grand Isle weather in December.
January in Grand Isle presents a unique climatic experience, as the island transitions into a cooler phase of the year. With temperatures averaging around 15°C, this month stands out from the much warmer summer months, providing a refreshing yet mild atmosphere. While some days may dip to a brisk 0°C, the occasional high of 24°C reminds visitors of the region's still pleasant temperament. Though rainfall is moderate, with about 100 mm over just 8 days, the increased humidity of 81% allows for a noticeably damp feel in the air, distinguishing January from other drier periods. For a comprehensive overview of the weather trends throughout the year, visit Grand Isle Climate.