Monthly outlook for South Padre Island, TX: average high 87.3°, average low 81.6°. That is 0.3° below the climate normal for August. Precipitation is expected on 4 days (about 0.3 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 10 August (92.1°), the coolest 9 August (79.2°).
87.3°/81.6°
Average high / low
−0.3°
Below normal
4 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
87.6°
87.9°
-0.2°
19 August – 28 August
86.7°
87.3°
-0.3°
29 August – 7 September
at normal
86.6°
—
August records over 66 years
100°17 August 2023All-time high
72°15 August 1967All-time low
Climate normals and records are computed from the nearest reference point — Laguna Heights (6 mi).
Mon, 1092° / 79°0.09
92 °
South Padre Island, Monday, 10 August
Light rain. High 92°, low 79°.
Pressure30.03 inHg
Wind17.5 mph SE
Humidity70%
Visibility6.2 mi
Dew point75°
Tue, 1187° / 81°0
87 °
South Padre Island, Tuesday, 11 August
Clear. High 87°, low 81°.
Pressure30.03 inHg
Wind15.7 mph SE
Humidity70%
Visibility6.2 mi
Dew point76°
Wed, 1287° / 82°0
87 °
South Padre Island, Wednesday, 12 August
Clear. High 87°, low 82°.
Pressure29.97 inHg
Wind19.2 mph SE
Humidity67%
Visibility6.2 mi
Dew point74°
Thu, 1387° / 82°0
87 °
South Padre Island, Thursday, 13 August
Light rain. High 87°, low 82°.
Pressure29.94 inHg
Wind17.9 mph SE
Humidity71%
Visibility6.2 mi
Dew point76°
Fri, 1486° / 83°0.01
86 °
South Padre Island, Friday, 14 August
Light rain. High 86°, low 83°.
Pressure30.00 inHg
Wind17.6 mph SE
Humidity75%
Visibility—
Dew point76°
Sat, 1587° / 83°0.07
87 °
South Padre Island, Saturday, 15 August
Light rain. High 87°, low 83°.
Pressure30.09 inHg
Wind17.4 mph SE
Humidity69%
Visibility—
Dew point75°
Sun, 1686° / 82°0
86 °
South Padre Island, Sunday, 16 August
Clear. High 86°, low 82°.
Pressure30.09 inHg
Wind15.9 mph SE
Humidity68%
Visibility—
Dew point74°
Mon, 1787° / 82°0
87 °
South Padre Island, Monday, 17 August
Clear. High 87°, low 82°.
Pressure30.03 inHg
Wind16.9 mph SE
Humidity69%
Visibility—
Dew point74°
Tue, 1886° / 82°0
86 °
South Padre Island, Tuesday, 18 August
Overcast. High 86°, low 82°.
Pressure30.03 inHg
Wind16.9 mph SE
Humidity71%
Visibility—
Dew point75°
Wed, 1986° / 81°0
86 °
South Padre Island, Wednesday, 19 August
Clear. High 86°, low 81°.
Pressure30.03 inHg
Wind16.6 mph SE
Humidity70%
Visibility—
Dew point74°
Thu, 2086° / 81°0
86 °
South Padre Island, Thursday, 20 August
Clear. High 86°, low 81°.
Pressure30.00 inHg
Wind16.2 mph SE
Humidity67%
Visibility—
Dew point73°
Fri, 2187° / 82°0
87 °
South Padre Island, Friday, 21 August
Mostly clear. High 87°, low 82°.
Pressure29.94 inHg
Wind18.1 mph SE
Humidity63%
Visibility—
Dew point73°
Sat, 2287° / 82°0
87 °
South Padre Island, Saturday, 22 August
Overcast. High 87°, low 82°.
Pressure29.91 inHg
Wind15.3 mph SE
Humidity69%
Visibility—
Dew point75°
Sun, 2387° / 82°0.01
87 °
South Padre Island, Sunday, 23 August
Light rain. High 87°, low 82°.
Pressure29.97 inHg
Wind18.1 mph SE
Humidity71%
Visibility—
Dew point76°
Mon, 2487° / 83°0.06
87 °
South Padre Island, Monday, 24 August
Light rain. High 87°, low 83°.
Pressure30.00 inHg
Wind17.1 mph SE
Humidity73%
Visibility—
Dew point76°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2587° / 79°0.09
87 °
South Padre Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.09 in
Chance of precipitation45%
Record high93° (2018)
Record low75° (1967)
Wed, 2687° / 79°0.09
87 °
South Padre Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.09 in
Chance of precipitation48%
Record high97° (2017)
Record low75° (1961)
Thu, 2787° / 79°0.11
87 °
South Padre Island, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.11 in
Chance of precipitation35%
Record high97° (2017)
Record low73° (1967)
Fri, 2887° / 79°0.15
87 °
South Padre Island, Friday, 28 August
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.15 in
Chance of precipitation42%
Record high97° (2023)
Record low73° (1961)
Sat, 2987° / 79°0.14
87 °
South Padre Island, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.14 in
Chance of precipitation57%
Record high94° (2025)
Record low74° (1970)
Sun, 3087° / 79°0.11
87 °
South Padre Island, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.11 in
Chance of precipitation50%
Record high96° (2023)
Record low75° (2017)
Mon, 3187° / 79°0.14
87 °
South Padre Island, Monday, 31 August
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.14 in
Chance of precipitation57%
Record high97° (2017)
Record low74° (1967)
Tue, 0187° / 79°0.15
87 °
South Padre Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.15 in
Chance of precipitation58%
Record high95° (2020)
Record low75° (1967)
Wed, 0287° / 79°0.12
87 °
South Padre Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.12 in
Chance of precipitation55%
Record high94° (2020)
Record low75° (1967)
Thu, 0387° / 79°0.18
87 °
South Padre Island, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high87°
Average low79°
Average precipitation0.18 in
Chance of precipitation62%
Record high93° (2021)
Record low75° (1984)
Fri, 0487° / 78°0.19
87 °
South Padre Island, Friday, 4 September
Climate normal for this date — 60-year average.
Average high87°
Average low78°
Average precipitation0.19 in
Chance of precipitation58%
Record high96° (2023)
Record low73° (1967)
Sat, 0586° / 78°0.15
86 °
South Padre Island, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high86°
Average low78°
Average precipitation0.15 in
Chance of precipitation58%
Record high95° (2023)
Record low73° (1967)
Sun, 0686° / 78°0.15
86 °
South Padre Island, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high86°
Average low78°
Average precipitation0.15 in
Chance of precipitation58%
Record high94° (2025)
Record low71° (1974)
Mon, 0786° / 78°0.18
86 °
South Padre Island, Monday, 7 September
Climate normal for this date — 60-year average.
Average high86°
Average low78°
Average precipitation0.18 in
Chance of precipitation55%
Record high93° (2023)
Record low72° (1974)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for South Padre Island, TX are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in South Padre Island, TX since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.