South Padre Island, TX weather in August
In August, South Padre Island sees highs around 90°F and lows around 79°F: hot and oppressively humid, with some rain. Rain falls on about 6 days. It is one of the warmest months in South Padre Island.
- Normal high
- 90°F
- Normal low
- 79°F
- Wet days
- 6
- 2.2 in total
- Muggy days
- 31
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 89°F | 90°F |
| Normal low | 79°F | 78°F |
| Chance of a wet day | 16% | 29% |
| Sunrise / sunset | 6:54 am / 8:15 pm | 7:08 am / 7:49 pm |
| Daylight | 13.3 h | 12.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical August day
- 6 am78°Fdew point 75°F
- 9 am87°Fdew point 75°F
- Noon92°Fdew point 73°F
- 3 pm92°Fdew point 73°F
- 6 pm87°Fdew point 74°F
- 9 pm82°Fdew point 76°F
NOAA hourly normals (local standard time) from Brownsville (20 mi away); average wind 9 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph15 of 31
- Hot dayshigh 90°F or more18 of 31
- Muggy daysdaily mean dew point 65°F or more31 of 31
- Wet daysat least 0.01 in of rain or melted snow6 of 31
- Notable rainat least 0.10 in4 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 2.2 in; a dry August brings about 0.9 in and a wet one about 2.9 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20202010: average high 92°F
- Coolest August1994: average high 87°F
- Wettest August1995: 8.3 in
- Driest August1993: 0.04 in
- Highest reading104°F (August 22, 2009)
- Lowest reading62°F (August 27, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 89°F | 90°F | 89°F |
| Normal low | 79°F | 79°F | 77°F |
| Wet days | 5 | 6 | 11 |
| Comfortable days | 0 | 0 | 0 |
| Daylight | 13.6 h | 13.0 h | 12.3 h |
Highs change by +1°F from July and -1°F into September.
Nearby alternatives in August
- Warmer: Brownsville, TX25 mi · high 96°F · 6 wet days
How South Padre Island ranks in August
- Normal high135th warmest of 378 cities; 38th of 38 in Texas
- Wet days123rd driest of 378
- Comfortable days338th most of 341
What to pack for South Padre Island in August
- Light, breathable clothing – highs near 90°F and about 31 muggy days
- A swimsuit – about 15 beach days
Heating and cooling
August has 0 heating degree days and 606 cooling degree days (base 65°F), 14% of the year's total heating and cooling demand.
Questions
How hot is South Padre Island in August?
The normal high is 90°F and the normal low is 79°F. From 1991 to 2020 the hottest August reading was 104°F (August 22, 2009).
Does it rain a lot in South Padre Island in August?
About 6 days in August have at least 0.01 in of precipitation, and the normal total is 2.2 in. The wettest August in 1991-2020 was in 1995 (8.3 in); the driest was in 1993 (0.04 in).
Is August a good time to visit South Padre Island?
August ranks 11th of 12 months on our comfort score for South Padre Island (40 out of 100). It has almost no comfortable days and about 18 days at 90°F or hotter. The best months are January, February and December.
Where the numbers come from
- Temperature: S Padre Is (USC00418487), 4.1 mi ESE of the city center, 5 ft . NOAA normals and daily records, 1991-2020.
- Rain and humidity and wind by hour: Brownsville (USW00012919), 20 mi SW of the city center, 23 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Port Isabel (USC00417179), 9.0 mi W of the city center, 17 ft . NOAA normals and daily records, 1991-2020.
- Frost dates: Port Isabel Cameron Airport (USW00012957), 12 mi WNW of the city center, 19 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Brownsville/S Padre Island Intl Airport (722500-12919), 21 mi SW of the city center, 19 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).