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Port Aransas Weather in September
September in Port Aransas averages 31°C (88°F) during the day and 25°C (77°F) at night. It is the wettest month of the year, with 153 mm (6 in) of rainfall on average, so waterproof gear is a must.
Rainfall in Port Aransas in September
The heaviest rainfall of the year happens this month, with frequent showers. A poncho is your best bet to stay dry. Historically, September sees about 12 days of rain, with a monthly average of 153 mm (6 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Port Aransas in September
September in Port Aransas sees highs of 31°C (88°F) and lows of 25°C (77°F) overnight. Mornings and evenings are often more comfortable than the peak afternoon hours. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Port Aransas in September
The days are predominantly sunny, with an estimated total of around 246 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.September in Port Aransas has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Port Aransas Temperature in September
Min Temperature
25°C (77°F)
Max Temperature
31°C (88°F)
Chance of Rain
40%
Precipitation
153 mm (6 in)
Rainy days
12 days
Humidity
75% *
Sunshine
246 hours *
Percentage Sunshine
66% *
* Data from: Corpus Christi, the United States of America (33 KM, 20 Miles).
Port Aransas Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Port Aransas - and find the best time to visit.
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Port Aransas in September
Warm but pleasant conditions in Port Aransas in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Port Aransas in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming8/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Port Aransas 3-Day Forecast
More climate data for Port Aransas
Temperature Rainfall Sunshine Humidity
See the full Port Aransas climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
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