Last updated: February 24, 2025
In Grapevine, United States, September brings a fine mix of summer warmth and refreshing breezes, making it a delightful time for outdoor activities. Temperatures soar with a maximum of 37°C (100°F), while the average hovers around 26°C (79°F), providing the perfect backdrop for enjoying the area's natural beauty. However, evenings cool to a comfortable 10°C (51°F), inviting cozy gatherings. Rainfall is moderate with 89 mm (3.5 in) spread over 8 rainy days, contributing to a relative humidity of 65% that keeps the atmosphere pleasant and invigorating. This month truly encapsulates the transition from summer to fall, offering both warmth and a hint of autumnal freshness.
In September, Grapevine, United States, experiences a delightful transition from the sweltering heat of summer to the milder embrace of autumn. With minimum temperatures averaging around 10°C (51°F) and highs peaking at 37°C (100°F), it's a month marked by warming days and cooler nights. The average temperature hovers at a comfortable 26°C (79°F), making it an ideal time for outdoor activities. This month illustrates a notable dip from the previous summer's extremes, as the region begins to shed its intense heat, setting the stage for the crisp, refreshing days of October ahead. The gradual decline in daily temperatures beckons both residents and visitors to enjoy the natural beauty of the area while the weather remains pleasantly balmy.
In September, Grapevine experiences a moderate shift in rainfall, receiving 89 mm (3.5 in) over 8 days. This marks a slight decrease from the wetter months of May and March, which both saw over 100 mm of precipitation. Interestingly, September rainfall is comparable to August’s 96 mm (3.8 in), indicating a consistent late-summer pattern. As the region transitions into fall, this decrease in precipitation often heralds crisper weather ahead, setting the stage for October's spike to 141 mm (5.5 in), illustrating a clear trend of increased rainfall as the seasons change.
In Grapevine, United States, September marks a noticeable decline in humidity, with levels dropping to 65%. This shift follows a summer pattern characterized by higher humidity, peaking in May at 81% and gradually decreasing through the warmer months. From the vibrant humidity observed in the earlier months, there’s a clear trend towards drier conditions as fall approaches. July and August also show a reduction in moisture, descending to 73% and 66%, respectively. The transition into autumn sets the stage for a refreshing change, making September feel particularly pleasant as humidity reaches its annual low. This trend highlights the region's unique climate rhythms, paving the way for the crisper conditions of October and beyond.
As summer gives way to autumn in Grapevine, September maintains a very high UV Index of 10, marking a slight dip from the extreme levels experienced throughout the peak months of June to August. With a burn time of just 15 minutes, it's crucial for residents and visitors to remain vigilant about sun protection. The trend from the previous months highlights a shift in exposure requirements, transitioning from intense heat to the still potent rays of early fall. As October approaches, the UV Index will further decrease, offering some respite. For more detailed information and tips on how to stay safe under the sun, visit Grapevine UV Index.
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As summer gently transitions into fall, September in Grapevine shines brightly with an impressive 282 hours of sunshine, a warm farewell to the longer days of summer. This month mirrors the abundant light of May and June, serving as a reminder of the peak sunlight experienced during the initial summer months. Following the exuberant days of July and August, which boast over 350 hours each, September offers a slightly cozy retreat while still embracing ample sun. This trend of diminishing sunlight continues into October, where the hours taper off to 263, suggesting a gradual shift towards the shorter days of winter. Whether you're sipping on a local wine or enjoying a late afternoon stroll, September ensures you soak up the last golden rays before the season changes.
In Grapevine, September stands out as a month of bright promise, boasting a 68% chance of sunny weather. This marks a significant uptick, especially when compared to the preceding summer months, where chances lingered in the mid-50s. Following the typically warm and sunny August, September transitions into the fall with a blend of warmth and clear skies, setting the stage for outdoor activities. As the year progresses, the likelihood of sun remains consistently high, peaking again in October at 67%. This trend underscores September as a delightful time to soak up the sun before the cooler months arrive, making it an ideal time for outdoor enthusiasts to explore the scenic beauty of Grapevine.
As summer gently transitions into autumn, September in Grapevine, United States, experiences a daylight duration of 12 hours. This marks a gradual decrease from the peak sunlight of 14 hours seen in June and July. Following the abundant hours of daylight in the summer months, September begins to signal the approaching fall, reminiscent of the vibrant shifts in foliage. The daylight hours remain relatively generous as nature slowly prepares for the shorter days ahead, with October bringing a further dip to 11 hours. This steady decline reflects a natural rhythm, inviting residents to savor the lingering warmth and golden light of early autumn days before the cooler months set in.
As September arrives in Grapevine, United States, a gentle shift in wind patterns becomes evident. With an average wind speed of 2.8 m/s (6 mph), the breezes of early autumn are noticeably milder compared to the lively gusts of late spring and summer. This decline in wind speed continues the trend seen over the warmer months, where July recorded the lowest average at 2.6 m/s (6 mph). As the seasons transition, the winds begin to pick up again in October, climbing back to 3.9 m/s (9 mph), suggesting a gradual return to more brisk conditions as Grapevine prepares for the cooler months ahead. The subtle dance of the September winds, coupled with the anticipated shift in temperatures, signals the onset of a beautiful fall season, inviting residents to enjoy the refreshing outdoor atmosphere.
The weather in Grapevine changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Grapevine and find detailed weather information for every month.
September and January present contrasting weather patterns. September enjoys warmer temperatures, with averages around 26°C (79°F) and highs reaching up to 37°C (100°F), while January experiences much cooler conditions, with average temperatures dropping to 8°C (47°F) and minimums plummeting to -11°C (12°F). In terms of precipitation, September sees more rainfall at 89 mm (3.5 in) over 8 days compared to January's 56 mm (2.2 in) across 7 days. Additionally, January boasts higher humidity levels at 80%, while September's humidity sits at a lower 65%. For more detailed insights, you can visit Grapevine weather in January.
September and February present strikingly different weather conditions. In September, temperatures range from a mild 10°C (51°F) to a hot 37°C (100°F), with an average of 26°C (79°F) and relatively lower humidity at 65%. The month experiences about 89 mm (3.5 in) of precipitation over 8 days. In contrast, February sees much cooler temperatures, with a minimum of -18°C (0°F) and a maximum of 30°C (86°F), averaging 9°C (49°F). This month tends to be wetter, with 95 mm (3.7 in) of precipitation spread over 9 days and higher humidity at 79%. For more details on February conditions specifically, check Grapevine weather in February.
When comparing the weather in September and March, notable differences emerge. September features warmer temperatures, with an average of 26°C (79°F) and peaks reaching up to 37°C (100°F), while March is much cooler, averaging 16°C (60°F) and having a maximum of 32°C (91°F). Additionally, September tends to be less humid at 65%, in contrast to March’s higher humidity level of 78%. Precipitation is slightly greater in March, with 112 mm (4.4 in) over 10 days compared to September's 89 mm (3.5 in) over 8 days. For more detailed information on Grapevine’s weather in March, check out Grapevine weather in March.
In September, temperatures can soar with average highs reaching up to 26°C (79°F) and maximums hitting 37°C (100°F), while the month experiences moderate humidity at 65%. There are about 8 days of rainfall, contributing to a total precipitation of 89 mm (3.5 in). In contrast, April tends to have cooler temperatures, with averages around 18°C (65°F) and maximums of 34°C (94°F). The month also sees slightly higher humidity levels at 78% and more precipitation, totaling 107 mm (4.2 in) over about 9 rainy days. For more detailed information on the weather conditions in April, you can check Grapevine weather in April.
In comparing the weather between September and May, September offers warmer temperatures, with a minimum of 10°C (51°F) and an average of 26°C (79°F), while May starts off cooler, with a minimum of 7°C (45°F) and an average of 24°C (75°F). The maximum temperatures in September can reach up to 37°C (100°F), compared to May's peak of 35°C (96°F). However, May tends to be wetter, with 160 mm (6.3 in) of precipitation over 12 days, compared to September's 89 mm (3.5 in) over 8 days. Additionally, humidity levels are higher in May at 81%, compared to September's 65%. For more detailed insights into May's climate, you can refer to this Grapevine weather in May.
When comparing the weather in September and June, we see some notable differences. September has a wider temperature range, with minimums dropping to 10°C (51°F) while averaging 26°C (79°F) and peaking at 37°C (100°F). In contrast, June starts at a higher minimum of 17°C (62°F), with an average of 27°C (82°F) and a maximum of 38°C (101°F). Both months receive similar levels of precipitation—about 89 mm (3.5 in) in September and 83 mm (3.3 in) in June—falling on an average of 8 days. However, the humidity levels are higher in June at 78%, compared to September's 65%, making June feel more muggy. For more specifics on June weather, you can refer to this link: Grapevine weather in June.
When comparing the weather in September to July, notable differences emerge. September's temperatures range from a cooler minimum of 10°C (51°F) to a maximum of 37°C (100°F), with an average temperature of 26°C (79°F). In contrast, July is notably warmer, featuring a minimum temperature of 19°C (66°F), an average of 30°C (85°F), and soaring to a maximum of 42°C (108°F). Additionally, precipitation is more frequent in September, with 89 mm (3.5 in) over approximately 8 days, while July sees only 43 mm (1.7 in) across about 7 days. Humidity levels are also slightly higher in July at 73%, compared to September's 65%. For a detailed view of July weather patterns, you can visit Grapevine weather in July.
In comparing the weather between September and August, we see a notable shift in temperatures and precipitation. September experiences a broader range of temperatures, with a minimum of 10°C (51°F) and a maximum reaching 37°C (100°F), averaging around 26°C (79°F). In contrast, August’s temperatures are higher overall, featuring a minimum of 20°C (68°F) and a maximum of 40°C (105°F), with an average of 29°C (85°F). Precipitation levels are slightly lower in September, with 89 mm (3.5 in) over 8 days compared to August’s 96 mm (3.8 in) across 7 days, leading to marginally higher humidity in August at 66% versus September's 65%. For more detailed insights into August weather, check out Grapevine weather in August.
In September, the weather is characterized by warm temperatures, with a minimum of 10°C (51°F) and an average of 26°C (79°F), reaching heated highs of 37°C (100°F). While September experiences moderate precipitation of 89 mm (3.5 in) over 8 days, the humidity remains relatively comfortable at 65%. In contrast, October sees a noticeable drop in minimum temperatures to 2°C (35°F), with an average of 20°C (68°F) and maximums still reaching up to 36°C (96°F). The month is wetter, with precipitation increasing to 141 mm (5.5 in) over the same number of days, and humidity rises slightly to 72%. For more detailed weather insights, check out Grapevine weather in October.
September weather is characterized by warmer temperatures, with an average of 26°C (79°F) and maximum highs reaching up to 37°C (100°F). The month experiences moderate rainfall, totaling 89 mm (3.5 in) over approximately 8 days, and a humidity level of 65%. In contrast, November brings a significant drop in temperature, averaging 13°C (56°F) with minimums dipping to -5°C (23°F) and maximums reaching 33°C (92°F). This month sees less precipitation, totaling 56 mm (2.2 in) over just 6 days, but the humidity increases to 82%. For more detailed insights, check out Grapevine weather in November.
In September, the weather is characterized by warm temperatures, with a minimum of 10°C (51°F) and an average high of 26°C (79°F), reaching up to 37°C (100°F) on hotter days. The month sees about 89 mm (3.5 in) of precipitation over 8 days, accompanied by a moderate humidity level of 65%. In contrast, December brings a cooler climate, with temperatures dipping to a minimum of -5°C (24°F) and an average temperature around 11°C (51°F), peaking at 28°C (83°F). Precipitation is lower at 59 mm (2.3 in) over 7 days, but the humidity rises to 87%, contributing to a much different feel compared to September. For more detailed weather insights, check out Grapevine weather in December.
As summer transitions to fall, September in Grapevine offers a delightful shift in weather, marked by more moderate temperatures and a notable drop in humidity compared to the sweltering months preceding it. With average highs reaching a comfortable 26°C (79°F) and cooler nights dipping to 10°C (51°F), this month becomes ideal for outdoor activities. Although the region experiences about 8 days of precipitation, the rain contributes to the refreshing ambiance, nourishing the landscape and enhancing the vibrant fall colors to come. For a detailed overview of Grapevine's weather patterns throughout the year, check out Grapevine Climate.