Climate and monthly weather forecastSouth Padre Island, TX
Climate and monthly weather forecast
The climate of South Padre Island
Situated in the South East of Texas, South Padre Island experiences a humid subtropical climate with no discernible dry season. This weather condition corresponds with the Köppen climate classification of Cfa. Following this classification, residents and visitors of this area partake in a climate that offers a significant amount of rain during all seasons, with tropical and subtropical summer conditions.Weather conditions fluctuate throughout different periods of the year. Peak temperatures, which present themselves between June and August, approach the 88°F (31.1°C) mark. Conversely, the cooler periods between December and February witness temperatures around the 67.1°F (19.5°C) mark. Furthermore, nighttime conditions also vary according to seasonal changes. The coldest periods register temperatures close to 59.5°F (15.3°C) while the warmest nights in the summer sit around 82°F (27.8°C).
The city's average humidity levels maintain a relatively constant state hovering around 75%, peaking in May at 80% and reaching its lowest in October at 72%. However, a blend of the high humidity and high temperatures can lead to uncomfortable conditions, particularly during the summer period.
Rainfall manifests quite frequently, with September recording the highest levels at 4.13" (105mm) and February showing the least rainfall with an average of 0.71" (18mm). During the year, rain falls for approximately 12.3 to 19.8 days each month, and highest sea temperatures are seen between June and September, with the highest in August around 85.1°F (29.5°C). Lastly, recorded wind speeds range from 13.4mph (21.6km/h) to 14.2mph (22.9km/h).
The best time to visit South Padre Island
Based on the climatic conditions, the optimal time to plan a visit to the South Padre Island would be in late spring or early fall. During these periods, visitors will experience warm and inviting temperatures, ranging from 73°F (22.8°C) to 77.7°F (25.4°C). Additionally, these periods see comparatively lower humidity levels, making the stay even more comfortable.The worst time to visit South Padre Island
The least desirable time to tour South Padre Island is in the peak summer months spanning from June to August. Although the area boasts of an appealing sea temperature averaging 85.1°F (29.5°C) in the same period, visitors may find it challenging due to high temperature and humidity values reaching 86.9°F (30.5°C) and 80%, respectively. Also, these months witness an increase in rainfall days and a decrease in visibility.Spring weather in South Padre Island
Spring brings milder temperatures fluctuating from 69.4°F (20.8°C) to 77.7°F (25.4°C), accompanied by relatively comfortable humidity levels. Also, chances of rainfall are prevalent, but the precipitation averages from 0.51" (13mm) to 0.71" (18mm), which is relatively light compared to the rest of the year.Summer weather in South Padre Island
Weather conditions in summer reach their peak, with high temperatures of up to 88°F (31.1°C) combined with high humidity levels. Rainfall increases as well during this period, with average rainfall volumes of approximately 2.2" (56mm). This high moisture content sees the sea temperature rise to an appealing 82.9°F (28.3°C) to 85.1°F (29.5°C).Autumn weather in South Padre Island
Autumn temperatures remain relatively warm, with a range of 81.9°F (27.7°C) to 86.2°F (30.1°C) and humidity dropping slightly compared to the summer months. However, rains increase significantly, with September recording the highest rainfall volume at 4.13" (105mm).Winter weather in South Padre Island
Winter sees a drop in temperatures, dropping from 69.6°F (20.9°C) to 67.1°F (19.5°C). Although slight, this fall in temperature results in a comfortable climate with low rainfall averages of around 1.34" (34mm) to 1.57" (40mm). Despite its cooler and more relaxed climate, winter experiences a comparatively low sea temperature ranging from 68°F (20°C) to 71.2°F (21.8°C).Weather in January
This initial month of the year in South Padre Island, Texas, features average high and low temperatures of 67.1°F (19.5°C) and 59.5°F (15.3°C) respectively, offering a gentle start to the year for locals and visitors. Compared to the latter end of the previous year, the weather shows a discretion in heat. Weather in January »Weather in February
The last month of the winter, February, is a pleasant month in South Padre Island, Texas, with an average temperature fluctuating between 69.4°F (20.8°C) and 62.2°F (16.8°C). February's onset records a minor alteration in the average high-temperature to an agreeable 69.4°F (20.8°C) from January's 67.1°F (19.5°C). Weather in February »Weather in March
The first month of the spring, March, is also an agreeable month in South Padre Island, Texas, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 73°F (22.8°C). The average high-temperature is a still agreeable 73°F (22.8°C) in March, hardly different from the 69.4°F (20.8°C) recorded in February. Weather in March »Weather in April
April brings notable change as the weather now leans towards summer appeal. Correspondingly, any residual winter frost is replaced by an escalation of the average sea temperature to 73.9°F (23.3°C), providing a hospitable climate for aquatic activities. Weather in April »Weather in May
May weather in South Padre Island introduces summer charm, thereby ensuring an uptick in tourist activities. Weather-wise, May portrays a satisfying increase in temperature highs and lows compared to April. Remarkably, the island gets to enjoy the most considerable daylight period of 13.4 hours. Weather in May »Weather in June
June weather represents the core of summer, having a significant increase in temperature compared to May. June is characteristic of brilliant sunshine hours, making it one of the sunniest months of the year. The sea temperature elevates to an inviting 82.9°F (28.3°C), complementing the hot weather and encouraging water activities. Weather in June »Weather in July
July comfortably maintains the summer season's warmth, recording the highest average low temperature of 81.1°F (27.3°C) of the year. Cloud cover decreases from June, revealing more blue skies and piloting an exquisite weather moment. Weather in July »Weather in August
August sustains July's warmth, being the warmest month in South Padre Island with a high average temperature of 88°F (31.1°C). The heightened temperatures incite an appreciable increase in sea temperature to 85.1°F (29.5°C), inviting for a dive. Weather in August »Weather in September
September in South Padre Island signals the advent of Autumn, thus a mild moderation of temperature. As August concludes and fall advances, the decrease in both sea and daily temperatures is experienced. A significant increase in precipitation occurs, reaching a record high of 4.13" (105mm) for the year. Weather in September »Weather in October
October denotes a further dip in temperature, aligning with the fall season in full effect. Moving from September, visible change in sea temperature occurs, becoming less inviting for swimming. However, the decrease in temperature may provide comfort from the intense summer heat. Weather in October »Weather in November
November presents an even cooler environment compared to October. A continual but moderate drop in sea temperature occurs, further limiting water-based activities. However, the change in climate does not halt daylight duration, still standing at a remarkable 10.9 hours. Weather in November »Weather in December
December culminates the year with Winter's debut, bringing about the coolest temperatures of the year with an average low of 63°F (17.2°C). Contraray to the heat intensity in August, the sea temperature experiences a significant drop to 71.2°F (21.8°C). Weather in December »Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is South Padre Island's coldest month, registering average high temperatures of 67.1°F (19.5°C) and lows of 59.5°F (15.3°C).
In South Padre Island, during the entire year, the rain falls for 143.2 days and collects up to 21.38" (543mm) of precipitation.
January, February and December, with an average maximum UV index of 5, are months with the lowest UV index.
February is the month with the coldest seawater, with an average ocean temperature of 66.7°F (19.3°C).
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in South Padre Island, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The month with the least rainfall is April, when the rain falls for 8.8 days and typically collects 0.51" (13mm) of precipitation.
April through September, with an average maximum UV index of 7, are months with the highest UV index in South Padre Island.
May is the most humid month in South Padre Island, Texas, with an average relative humidity of 80%.
With an average of 13h and 42min of daylight, June has the longest days of the year in South Padre Island.
July has the most sunshine of the year, with an average of 11.3h of sunshine.
August, noted for its average high-temperature of 88°F (31.1°C) and an average low-temperature of 82°F (27.8°C), is considered the warmest month.
With an average ocean temperature of 85.1°F (29.5°C), August is the month with the warmest seawater.
September is the month with the most rainfall. Rain falls for 19.8 days and accumulates 4.13" (105mm) of precipitation.
With an average relative humidity of 72%, October is the least humid month in South Padre Island.
With an average of 10h and 30min of daylight, December has the shortest days of the year.
With an average of 4.8h of sunshine, December has the least sunshine of the year in South Padre Island, Texas.
Average temperature
South Padre Island, TX
The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (67.1°F).
The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure
South Padre Island, TX
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.9"Hg - Average pressure in May:
29.88"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.91"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).
Average wind speed
South Padre Island, TX
- Average wind speed in January:
13.4mph - Average wind speed in February:
13.7mph - Average wind speed in March:
14mph - Average wind speed in April:
14.2mph - Average wind speed in May:
14mph - Average wind speed in June:
12.9mph
- Average wind speed in July:
12.9mph - Average wind speed in August:
11.5mph - Average wind speed in September:
10.9mph - Average wind speed in October:
12.4mph - Average wind speed in November:
13.3mph - Average wind speed in December:
13.5mph
The windiest month (with the highest average wind speed) is April (14.2mph).
The calmest month (with the lowest average wind speed) is September (10.9mph).
Average humidity
South Padre Island, TX
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall
South Padre Island, TX
- Average rainfall in January:
1.57" - Average rainfall in February:
0.71" - Average rainfall in March:
0.87" - Average rainfall in April:
0.51" - Average rainfall in May:
1.18" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.6" - Average rainfall in August:
1.77" - Average rainfall in September:
4.13" - Average rainfall in October:
2.56" - Average rainfall in November:
1.89" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is September (4.13").
The driest month (with the least rainfall) is April (0.51").
Average rainfall days
South Padre Island, TX
- Average rainfall days in January:
12.3 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
8.2 days - Average rainfall days in April:
8.8 days - Average rainfall days in May:
8.4 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
10.4 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
19.8 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
14.1 days - Average rainfall days in December:
12.8 days
The month with the highest number of rainy days is September (19.8 days).
The month with the least rainy days is March (8.2 days).
Average sea temperature
South Padre Island, TX
The best month for swimming (with the highest average sea temperature) is August (85.1°F).
The coldest month (with the lowest average sea temperature) is February (66.7°F).
Average daylight / Average sunshine
South Padre Island, TX
- Average daylight in January:
10h and 42min - Average daylight in February:
11h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 24min - Average daylight in June:
13h and 42min
- Average daylight in July:
13h and 36min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 54min - Average daylight in December:
10h and 30min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
7h and 0min - Average sunshine in March:
7h and 42min - Average sunshine in April:
8h and 54min - Average sunshine in May:
10h and 42min - Average sunshine in June:
11h and 6min
- Average sunshine in July:
11h and 18min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 0min - Average sunshine in October:
7h and 30min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days
South Padre Island, TX
- Average sunshine days in January:
16 days - Average sunshine days in February:
16.4 days - Average sunshine days in March:
20.7 days - Average sunshine days in April:
19.3 days - Average sunshine days in May:
20.6 days - Average sunshine days in June:
14.5 days
- Average sunshine days in July:
17.3 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
7.2 days - Average sunshine days in October:
14.6 days - Average sunshine days in November:
13.1 days - Average sunshine days in December:
14.9 days
The month with the most sunshine days is March (20.7 days).
The month with the least sunshine days is September (7.2 days).
Average UV index
South Padre Island, TX
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover
South Padre Island, TX
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility
South Padre Island, TX
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
