Last updated: February 24, 2025
September in Port Aransas, Texas presents a delightful blend of warm temperatures and vibrant coastal atmosphere. With a daily average temperature hovering around 28°C (82°F), this month is characterized by maximum highs reaching 31°C (88°F) and minimum lows dipping to a comfortable 21°C (70°F). However, it’s not just the warmth that defines September; the region experiences 177 mm (7.0 in) of rainfall over 16 days, contributing to a humidity level of 79%. While planning your visit, be prepared for both sun-soaked days and the refreshing coastal showers that invigorate this charming beach town.
In September, Port Aransas enjoys a delightful transition into autumn, where temperatures embrace a warm and inviting climate. With a minimum of 21°C (70°F) and an average of 28°C (82°F), the coastal town continues to bask in summer-like warmth. The daily highs reach a maximum of 31°C (88°F), providing plenty of sunshine for outdoor activities, beach outings, and vibrant sunsets. Compared to the preceding months, September's temperatures maintain a comfortable level, gently descending from the peak summer heat, making it an ideal time for visitors seeking pleasant weather and fewer crowds. This harmonious blend of warmth and tranquility marks September as a perfect month to experience the charm of Port Aransas.
In September, Port Aransas experiences a significant surge in rainfall, with 177 mm (or 7.0 inches) recorded, marking it as the wettest month of the year. This increase in precipitation aligns with a rise in the number of rainy days, totaling 16, compared to the more moderate 9 days of rain seen in the preceding months. The trend showcases a transition to wetter conditions as summer gives way to fall, reflecting the region's seasonal shift. Following May and June, which are typically the peak months of rainfall, September solidifies the pattern of high moisture levels, creating an atmosphere of freshness and vitality as autumn approaches.
In September, Port Aransas experiences a humidity level of 79%, marking a slight dip from the highs of the summer months but remaining consistent with the overall trend observed throughout the year. As we transition from the heat of August, where humidity also stood at 78%, September maintains a comfortable atmosphere, supported by a slight decrease from the earlier spring and summer readings that often hover around the 80% mark. While the humidity levels fluctuate modestly, they generally stay within a narrow range, showcasing Port Aransas's characteristic coastal climate. As the year progresses into October, a further decline to 77% is anticipated, hinting at the arrival of more refreshing fall conditions.
In September, Port Aransas experiences a UV Index of 11, marking it as an extreme exposure month with a quick burn time of just 10 minutes. This trend continues from the intensity seen in the summer months, where the UV Index peaked at 12 in June, July, and August. However, as the season shifts into fall, the UV Index decreases slightly but still demands caution. Travelers and locals alike should remain vigilant and protect their skin, as this extreme rating reflects strong sun exposure consistent with the late summer sun. For more details on the UV Index levels throughout the year, be sure to check out Port Aransas UV Index.
UV Risk Categories
September in Port Aransas offers a delightful transition into the fall season, boasting 285 hours of sunshine. This month, while seeing a slight dip compared to the summer peak in June and July, still provides a wealth of bright, sunny days for visitors and locals alike. As the summer heat begins to wane, September maintains a generous amount of sunlight, making it a perfect time for beach activities and exploring the area’s natural beauty. This trend of abundant sunshine continues through October, suggesting that the charm of Port Aransas stretches well into the fall, inviting everyone to soak in the warmth and vibrant atmosphere even as the calendar turns.
In Port Aransas, the likelihood of sunny weather sees a noticeable shift as summer gives way to fall. **September boasts a promising 60% chance of sun, marking it as one of the sunniest months of the year. This uptick is a welcome change following the typically lower percentages in the heart of summer, particularly July, which dips to just 31%. As residents and visitors alike transition into autumn, the increasing sunshine in September signals an ideal time for enjoying outdoor activities and soaking in the coastal charm of this vibrant destination. With autumn's arrival, the weather not only brightens but also invites more opportunities for beachgoers to relish the sun-soaked days before the cooler months set in.
As summer gradually wanes, September in Port Aransas, United States, brings a subtle shift in daylight, offering around 12 hours of sunshine each day. Following a vibrant stretch of consistent 13 hours in the peak summer months, this slight decline signals the transition into autumn. While daylight hours taper off, September still bask in the warm glow of late summer, making it an ideal time for outdoor adventures before the days become noticeably shorter. The rhythm of changing seasons is palpable as the days shorten towards the cooler months of October and November, creating a perfect backdrop for enjoying the lingering warmth of the coastline.
As September rolls into Port Aransas, the coastal winds exhibit a gentle lull, with average wind speeds settling at 5.4 m/s (12 mph). This shift marks a continuation of the lower breezes seen in July and August, hinting at a transition from the summer's vibrant gusts. While spring months like May flirt with speeds of 7.0 m/s (16 mph), September's atmosphere is calmer, inviting locals and visitors alike to savor the serene beauty of the beachfront without the typical wind-induced chill. As the year progresses into October, wind speeds inch back up slightly to 5.5 m/s (12 mph), maintaining that mild, balmy feel characteristic of the coastal escape. This slow decline and minor resurgence in wind patterns create a unique blend of tranquility and warmth, perfect for enjoying the enchanting early autumn at the shore.
The weather in Port Aransas 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 Port Aransas and find detailed weather information for every month.
September weather features much warmer temperatures, with a minimum of 21°C (70°F) and an average of 28°C (82°F), reaching a maximum of 31°C (88°F). The month is also characterized by significant rainfall, averaging 177 mm (7.0 in) over 16 days, and maintaining high humidity levels at 79%. In contrast, January brings a dramatic shift in climate, with cooler temperatures ranging from a minimum of 1°C (33°F) to a maximum of 25°C (77°F) and an average of 16°C (61°F). Additionally, January experiences much less precipitation, totaling only 48 mm (1.9 in) over just 7 days, while humidity remains relatively steady at 78%. For more details on January weather, you can check Port Aransas weather in January.
September and February present starkly contrasting weather conditions. In September, temperatures range from a minimum of 21°C (70°F) to an average of 28°C (82°F) and a maximum of 31°C (88°F), characterized by high humidity at 79%. However, this month also experiences significant rainfall, with 177 mm (7.0 in) falling over 16 days. In contrast, February offers much cooler temperatures, with a minimum of -4°C (26°F) and an average of 16°C (61°F), peaking at a maximum of 23°C (74°F). Precipitation is considerably lower in February, totaling 44 mm (1.7 in) over just 9 days, accompanied by a slightly higher humidity of 82%. For more detailed insights into the February climate, visit Port Aransas weather in February.
When comparing the weather in September and March, it's clear that September is characterized by significantly warmer temperatures. September sees minimum temperatures averaging around 21°C (70°F) and maximums reaching up to 31°C (88°F), creating a warm, humid atmosphere with an average precipitation of 177 mm (7.0 in) over 16 days. In contrast, March experiences much cooler conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 26°C (78°F) and a much lower precipitation of 51 mm (2.0 in) spread across just 6 days. Interestingly, both months share the same humidity level of 79%, but the overall feel of the weather is quite different. For a detailed look at March weather, you can refer to Port Aransas weather in March.
September and April exhibit distinct weather patterns. In September, temperatures are warmer, ranging from a minimum of 21°C (70°F) to a maximum of 31°C (88°F), with an average of 28°C (82°F). This month also brings significant rainfall, totaling 177 mm (7.0 in) over 16 days, contributing to a high humidity level of 79%. In contrast, April offers a cooler climate with temperatures from a minimum of 11°C (52°F) to a maximum of 29°C (85°F), averaging 22°C (72°F). The precipitation is markedly lower in April, with only 48 mm (1.9 in) over 6 days, and a humidity level of 82%. For more details on April's weather, check out Port Aransas weather in April.
In comparing the weather between September and May, September tends to be warmer, with average temperatures reaching 28°C (82°F) and maximums climbing up to 31°C (88°F). In contrast, May offers slightly cooler temperatures, with averages around 25°C (78°F) and maximums of 28°C (83°F). Precipitation also differs, with September experiencing higher rainfall at 177 mm (7.0 in) over 16 days, compared to May's 143 mm (5.6 in) over just 9 days. Both months have high humidity levels, with September at 79% and May a bit higher at 81%. For a more detailed look at the weather specifics, check out Port Aransas weather in May.
When comparing the weather in September and June, both months exhibit warm temperatures and high humidity levels, with averages around 28°C (82°F). However, June tends to be slightly hotter, with maximum temperatures reaching up to 32°C (91°F) compared to September's maximum of 31°C (88°F). Additionally, while June sees less precipitation with 146 mm (5.7 in) over 11 days, September is significantly wetter, receiving 177 mm (7.0 in) across 16 days. Humidity levels are fairly similar, with September at 79% and June at 77%. For more details on June weather, you can check Port Aransas weather in June.
In comparing the weather of September and July, both months experience similar average maximum temperatures, peaking at around 31°C (88°F). However, September tends to be slightly cooler during the nights, with a minimum temperature of 21°C (70°F) compared to July's warmer 25°C (77°F). While both months have high humidity levels, September's humidity is a touch higher at 79% compared to July's 78%. Rainfall also differs significantly, as September sees more precipitation, accumulating 177 mm (7.0 in) over 16 days, whereas July experiences less rainfall at 125 mm (4.9 in) over only 9 days. For more detailed insights, you can check out Port Aransas weather in July.
In comparing the weather of September to that of August, September generally presents slightly cooler temperatures, with minimums dropping from 24°C (75°F) in August to 21°C (70°F). The average temperature remains relatively stable, at 28°C (82°F) for both months, while the maximum temperatures peak at the same 31°C (88°F). However, notable differences arise in precipitation, as September experiences significantly higher rainfall at 177 mm (7.0 in) over 16 days, compared to August's 76 mm (3.0 in) over just 9 days. Both months exhibit high humidity, with September reaching 79% and August slightly lower at 78%. For more detailed insights, you can check out Port Aransas weather in August.
In September, the weather is typically warmer and more humid, with average temperatures around 28°C (82°F) and a high of up to 31°C (88°F). This month also sees significant rainfall of 177 mm (7.0 in) over 16 days, resulting in a humidity level of 79%. In contrast, October brings a noticeable drop in temperatures, with averages around 25°C (77°F) and a maximum of 30°C (86°F). Precipitation decreases to 97 mm (3.8 in) over 12 days, and humidity slightly lowers to 77%. For more details on what to expect, check out Port Aransas weather in October.
September and November showcase a stark contrast in weather patterns. In September, temperatures remain warm, with a minimum of 21°C (70°F) and an average high of 31°C (88°F), but the month is marked by significant rainfall, totaling 177 mm (7.0 in) across 16 days. The humidity is high at 79%, contributing to a muggy atmosphere. In contrast, November presents a cooler climate, with temperatures dipping to a minimum of 6°C (43°F) and an average high of 27°C (80°F). Rainfall is significantly reduced, totaling only 64 mm (2.5 in) over 8 days, and humidity remains relatively stable at 78%. For more insights on November weather, check out Port Aransas weather in November.
In September, the weather is characterized by warm temperatures, with a minimum of 21°C (70°F) and an average high of 31°C (88°F), making it a hot month overall. However, this warmth is accompanied by significant rainfall, with 177 mm (7.0 in) of precipitation over approximately 16 days, and a humidity level of 79%. In contrast, December experiences much cooler conditions, featuring a minimum temperature of 5°C (41°F) and an average high of 24°C (75°F). Rainfall decreases sharply to 55 mm (2.2 in), spread over just 7 days, while humidity remains fairly high at 80%. The marked difference in temperatures and precipitation patterns highlights the transition from the humid heat of September to the cooler, drier air of December. For more details, check out Port Aransas weather in December.
As September rolls in, Port Aransas experiences a shift in weather, marked by warmer temperatures and increased humidity compared to the preceding summer months. The air is often thick with moisture, contributing to a slightly more tropical feel, while rainfall becomes more frequent, leading to afternoon showers that refresh the coastal landscape. This month typically sees a delightful blend of warm sun and brief rain, making it a unique transition period before the cooler autumn breezes set in. For a deeper dive into how September's climate shapes your coastal experience, check out Port Aransas Climate.