August Weather in South Padre Island, Texas - 2025

South Padre Island (SPI) is located at the Southernmost tip of Texas and is home to 34 Miles (55 km) of wide, sandy beaches. This small beach town is a phenomenal combination of beaches, palm trees, rare birds, wildlife, and delightful fresh air, making it a perfect destination for all. Bay and deep-sea fishing, parasailing, kiteboarding, and paddle boating are some of the activities you can engage in. It is also famous for the vast species of birds and marine wildlife that call this island, and the ocean surrounding it, their home. The island is known for it's locally caught fresh fish which include Red Snapper, Sand trout, Whiting, Croakers, Sharks, Kingfish, and black drum.

August weather in South Padre Island Texas

To get a good overview of the type of weather you can expect in August in South Padre Island, we will look at the day and night temperature, minimum and maximum water temperature, and if August is comfortable or humid

Generally, August in South Padre Island will be quite hot. Historical data shows that you can expect an average temperature of around 95°F / 35°C. But due to the very high humidity, it can feel very uncomfortable. During the night, it will cool down to around 77°F / 25°C. Many will prefer a location with air conditioning due to the night temperature, and the high humidity level.

South Padre Island has rainy days in August. You can expect around 8 rainy days, with on average 1.1 inches / 27 mm of rain during the whole month.

August weather in South Padre Island Texas in more detail

To get a better feeling for the type of weather, you can expect in August in South Padre Island, we will look at the temperature, rain, wind, humidity, water temperature, and sun and clouds

- What will the temperature be in South Padre Island in August

Generally, you can expect in August an average temperature of 95°F / 35°C during the day and an average of 77°F / 25°C during the night. In August, during the warmest part of the afternoon, the temperature can often get as high as 98°F / 37°C, and at the end of the night, it can get as low as 73°F / 23°C.

When looking at the whole year, January and December are the coldest months, with an average temperature of around 73°F / 23°C. August is the hottest month, with an average temperature of around 95°F / 35°C. When comparing August with the temperature in the month before and after, this is almost equal to July, which sees an average maximum temperature of around 93°F / 34°C. And almost equal to September, which sees an average maximum temperature of around 91°F / 33°C.

But average temperatures only tell half of the story. It is also good to check the maximum and minimum temperatures. When looking at the whole year, May, June, July and August are the hottest months, with a temperature of around 98°F / 37°C. January is the coldest month, with a temperature of around 84°F / 29°C. When comparing August with the temperature in the month before and after, this is equal to July, which sees an average maximum temperature of around 98°F / 37°C. And almost equal to September, which sees an average maximum temperature of around 96°F / 36°C.

In the following graph, you can see how many cold and hot days you can expect in South Padre Island each month:

- Can you expect rain in August in South Padre Island?

Generally, you can expect about 8 rain days in August, with on average 1.1 inches / 27 mm of rain.

When looking at the whole year, March and May are the driest months, with an average rainfall of around 0.6 inches / 16 mm. September is the wettest month, with an average rainfall of around 2.1 inches / 53 mmmm. When comparing August with the month before and after, this is slightly less than July, which sees around 1.2 inches / 31 mm of rain. And a lot less than September, which sees around 2.1 inches / 53 mm of rain

If we look at the number of days with rain, March is the month with the least amount of rain days with an average of between 5 and 6 days. September is the month with the most rain days with around 11 days. When comparing August with the month before and after, this is almost equal to July, which sees an average of between 7 and 8 days of rain. And slightly less than September, which sees around 11 days of rain

- What will the water temperature be in South Padre Island for August

You can expect in August, the water temperature for South Padre Island to be between 87°F / 31°C and 84°F / 29°C.

To compare the water temperature we will use the maximum water temperature. You can expect this temperature on a more sunny day, close to the shore, when the wind does not mix the relatively warmer and colder water.

September has the highest water temperature, with around 87°F / 31°C. February has the lowest water temperature, with around 66°F / 19°C. When comparing the water temperature from August with the month before and after, August has a water temperature almost equal to July, with a water temperature of around 86°F / 30°C. And almost equal to the water temperature from September, that is around 87°F / 31°C.

- Can you expect in August a lot of sunny days in South Padre Island

Generally, you can expect around 17 sunny days in August and around 13 partly sunny days. The remaining days will be cloudy.

When looking at the whole year, August is the month with the highest number of sunny days, with an average of between 16 and 17 sunny days. April is the month with the lowest number of sunny days, with an average of between 4 and 5 sunny days. When comparing August with the number of sunny days in the month before and after, it is almost equal to July, with around 16 sunny days. And slightly more than September, with an average of between 14 and 15 sunny days

We have looked at the sunny days in South Padre Island. Let's also look at the cloudy or overcast days. January is the month with the highest number of cloudy days, with around 10 cloudy days. June is the month with the lowest number of cloudy days, with around 1 cloudy day. When comparing August with the number of cloudy days in the month before and after, it is almost equal to July, with an average of between 1 and 2 cloudy days. And almost equal to September, with around 3 cloudy days

- Will it be comfortable in August in South Padre Island?

Generally, August in South Padre Island will have a very high humidity, and can feel very uncomfortable.

We use the humidity and temperature in South Padre Island to calculate the Wintersun Expert Comfort level for each month. The lower the Wintersun Expert Comfort level, the more comfortable it will be. Only for certain people, extremely dry air can feel slightly uncomfortable.

When looking at the whole year, November has the lowest humidity, with a Wintersun Expert comfort level of "very comfortable" (dry air). July has the highest humidity, with a Wintersun Expert comfort level of "very uncomfortable" (very high humidity). When comparing August with the month before and after, this is almost equal to July, which has a Wintersun Comfort level of "extremely uncomfortable" (extremely humid). And slightly more than September, which has a Wintersun Comfort level of "slightly uncomfortable" (moderately humid)

What to do in South Padre Island Texas in August

South Padre Island offers its visitors excellent places to explore and enjoy:

• Sea Turtle Inc. A facility established in 1977 for the rehabilitation and conservation of all species of marine turtles. If you're looking to see these fascinating creatures up close, this is the place to go.
• Laguna Madre Nature Trail: A walkway that runs from the South Padre Island Convention Centre to the Laguna Madre Wetlands. South Padre Island Birding & Nature Center is located along the Laguna Madre Nature Trail and is the major spot for observing coastal and migratory birds as well as other wildlife. It also includes an auditorium showing short documentary movies.
• Isla Blanca Park: It features about a mile of sandy white beach, fishing jetties, restaurants, a marina as well as a water park. Here, visitors can enjoy dozens of activities like fishing, jet skiing, swimming, and parasailing. The El Cristo de Los Pescadores Memorial which translates to "Christ of the Fishermen" that is dedicated to the fishermen community of the island is located here.
• South Padre Island Adventure Park: This is a family-friendly park on the beach offering various activities like horseback rides, ATV tours, kiteboarding, and much more. The park also hosts different shows and bonfires at night.
• Rockstar Beach: It is a popular beach that hosts huge parties and local events, including the Beach Bash Music Fest, which is a two-day music festival.
• The Largest Outdoor Sandcastle in the USA is located in South Padre Island and was originally built in 2013. It is considered a major attraction and landmark of the area.
• Dolphin Research & Sealife Nature Center is an educational nonprofit organization dedicated to teaching the public about dolphins and other marine life, through wildlife tours, interactive exhibits and touch tanks housing these rescued mammals.

Is it humid in South Padre Island Texas in August?

A lot of people ask interested in the humidity or relative humidity for South Padre Island Texas in August. But the real question they want to ask is not about humidity but the amount of moisture in the air. Or better, about comfort. Will it be comfortable in August in South Padre Island, or will high humidity make it uncomfortable.

To answer this question, we have to look at the dew point. Relative humidity can change a lot in South Padre Island during the day and night, as it changes when the amount of moisture changes and, but also when the temperature changes. It is a lot less reliable for comfort. Where the dew point only varies with the amount of moisture in the air.

Looking at the dew point, we can see that for the month of August, you can expect that South Padre Island will have a very high humidity, and can feel very uncomfortable.

November is the month with the most comfort. It will have a low humidty, and will feel very comfortable. July is the most uncomfortable month. It will be extremely humid, and can feel extremely uncomfortable. In the graph, you can see that there is a significant difference between the most comfortable and most uncomfortable months

Is August a good time to go to South Padre Island Texas?

Trying to answer the question of whether August is a good time to go to South Padre Island is not as easy as it first seems. Some people like colder weather, and others prefer a warmer climate. Some are fine with some humidity, and others are not. If your location has air conditioning, the night temperature is less important.

These are some examples. I will try to answer the question with a more generic person in mind. The more detailed information in this article should be enough to check further if this applies to you as well.

If we look at the average temperature for South Padre Island in August, we can see that it will be too hot for a lot of visitors. In August, you can expect it to be quite hot, with an average temperature of around 95°F / 35°C. But due to the very high humidity, it can feel very uncomfortable. During the night, it will be around 77°F / 25°C.

As the number of overcast days is not high, you can enjoy the sun with around 17 sunny days and 13 partly sunny days.

The last aspect we will look at is rain. You can expect around 8 rainy days, with on average 1.1 inches / 27 mm of rain during August. More then 5 days rain per month makes the chance higher you will see some rain during a shorter stay. But a day with rain does not mean a day you can not enjoy.

We have looked at the average day temperature, the night temperature, humidity, the number of overcast days, and the rain. We think that August in South Padre Island Texas is not the most optimal destination. But that doesn't mean it is not a good time for you to go. As said before, each visitor has their own preferences when it comes to the weather.

Does it rain all day in South Padre Island Texas in August?

In South Padre Island, it does not rain all day in August. You can expect around 8 rainy days, with on average 1.1 inches / 27 mm of rain during the month.

Another way of looking at the rain is the number of sunny days. For South Padre Island Texas, there are, on average 17 sunny days and 13 partly sunny days in August. That clearly shows that it is not raining all the time.

Is August the rainiest month in South Padre Island Texas?

August is not the month with the most rainy days, and not the month with the most rain.

To answer what the rainiest month is in South Padre Island, we will both look at the month with the most rain, and the month with the highest number of rainy days.

September is the month with the the highest number of rainiest days. On average, you can expect 11 days with rain. March is the month with the lowest number of rainy days, with aproximately 6 days.

September is the month with the most rain. This is not equal as the one with the most rainy days. On average, you can expect 2.1 inches / 53 mm of rain. March is the month with the least amount of rain. This is not the same month as the one with the lowest number of rainy days. You can expect approximately 0.6 inches / 16 mm of rain.

Is August the most sunniest month in South Padre Island Texas?

August is the month with the most sunny days, not the month with the most partly sunny days, and it is not the month with the lowest number of overcast days.

To answer what the sunniest month is in South Padre Island, we will of course look at the month with the most sunniest days, but also look at the month with the biggest number of days that are sunny or partly sunny.

August is the month with the highest number of sunny days. On average, you can expect 17 sunny days, and 13 partly suny days. April is the month with the lowest number of sunny days.

May is the month with the highest number of sunny days and partly sunny days combined. While January is the month with the lowest number of sunny days and partly sunny days combined.

The last thing we will look at is the number of overcast days. June is the month with the lowest number of overcast days. While January is the month with the highest number of overcast days.

More information about South Padre Island Texas

Weather in South Padre Island Texas in other months

• Weather in South Padre Island Texas for January
• Weather in South Padre Island Texas for February
• Weather in South Padre Island Texas for March
• Weather in South Padre Island Texas for April
• Weather in South Padre Island Texas for May
• Weather in South Padre Island Texas for June
• Weather in South Padre Island Texas for July
• Weather in South Padre Island Texas for September
• Weather in South Padre Island Texas for October
• Weather in South Padre Island Texas for November
• Weather in South Padre Island Texas for December

What to do in South Padre Island Texas for each month

• What to do in January in South Padre Island Texas
• What to do in February in South Padre Island Texas
• What to do in March in South Padre Island Texas
• What to do in April in South Padre Island Texas
• What to do in May in South Padre Island Texas
• What to do in June in South Padre Island Texas
• What to do in July in South Padre Island Texas
• What to do in August in South Padre Island Texas
• What to do in September in South Padre Island Texas
• What to do in October in South Padre Island Texas
• What to do in November in South Padre Island Texas
• What to do in December in South Padre Island Texas