Compare the Climate and Weather in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70

This page lets you compare and contrast the weather and climate in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70 year round.

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Port Aransas
United States
Mustang Beach Airport
United States
South Brazos A70
United States
Map

Average High and Low Temperature

Compare the Average High and Low Temperature in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°F105°F105°F815189639256684910485NowNowMustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 64°F66°F71°F77°F83°F87°F89°F89°F87°F82°F74°F66°F
Mustang Beach Airport 64°F66°F71°F77°F83°F88°F89°F89°F87°F82°F74°F66°F
Aransas County Airport 65°F68°F73°F79°F85°F89°F91°F92°F89°F83°F74°F67°F
South Brazos A70 68°F69°F72°F77°F82°F87°F89°F89°F87°F82°F76°F70°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 52°F55°F61°F68°F75°F79°F81°F81°F78°F71°F62°F54°F
Mustang Beach Airport 51°F54°F61°F68°F75°F79°F81°F81°F78°F71°F62°F54°F
Aransas County Airport 50°F54°F60°F67°F74°F79°F80°F79°F75°F68°F60°F52°F
South Brazos A70 57°F58°F62°F68°F75°F80°F82°F82°F80°F74°F66°F59°F

Port Aransas

Average Hourly Temperature in Port AransasJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoolcoolwarmhotcomfortablecomfortablecold

Mustang Beach Airport

Average Hourly Temperature in Mustang Beach AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoolcoolwarmhotcomfortablecomfortablecold

Aransas County Airport

Average Hourly Temperature in Aransas County AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoldcoolcoolwarmhotcoldcomfortablecomfortable

South Brazos A70

Average Hourly Temperature in South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowcoolcoolcomfortablewarmhotcomfortable
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies

Compare the Chance of Clearer Skies in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%744371NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 54%57%60%62%69%68%47%45%55%67%65%56%
Mustang Beach Airport 54%57%60%62%69%68%47%45%55%67%65%56%
Aransas County Airport 55%58%60%62%68%67%48%46%55%68%66%57%
South Brazos A70 48%51%54%58%64%64%45%44%52%64%59%50%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%35131216NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 5.0d4.2d4.9d4.9d7.4d7.3d5.8d6.7d9.7d7.5d5.3d4.4d
Mustang Beach Airport 4.8d4.1d4.8d4.8d7.3d7.3d5.8d6.7d9.6d7.5d5.2d4.3d
Aransas County Airport 5.3d4.3d4.9d5.1d7.6d7.7d6.0d7.0d9.4d7.2d5.3d4.4d
South Brazos A70 7.3d5.8d5.7d5.4d8.4d9.1d8.9d9.1d10.5d8.6d7.4d7.0d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in3.71.34.42.0NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 1.6″1.5″1.9″1.6″2.7″2.5″2.0″2.1″3.7″3.1″2.0″1.3″
Mustang Beach Airport 1.6″1.5″1.8″1.6″2.7″2.5″2.0″2.1″3.6″3.1″1.9″1.3″
Aransas County Airport 1.7″1.6″2.0″1.8″2.9″2.7″2.2″2.1″3.6″3.1″2.1″1.4″
South Brazos A70 3.0″2.4″2.4″2.0″3.0″3.2″2.8″2.8″4.3″4.1″3.3″2.6″

Hours of Daylight

Compare the Hours of Daylight in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr13.910.4NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 10.6h11.2h12.0h12.9h13.5h13.9h13.7h13.1h12.3h11.5h10.8h10.4h
Mustang Beach Airport 10.6h11.2h12.0h12.9h13.5h13.9h13.7h13.1h12.3h11.5h10.8h10.4h
Aransas County Airport 10.6h11.2h12.0h12.9h13.6h13.9h13.7h13.1h12.3h11.5h10.7h10.4h
South Brazos A70 10.6h11.2h12.0h12.9h13.6h13.9h13.7h13.1h12.3h11.5h10.8h10.4h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%1001018NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 3.5d4.4d11.0d18.8d27.4d29.6d30.9d30.8d26.5d19.5d12.0d6.9d
Mustang Beach Airport 3.5d4.3d11.0d18.8d27.4d29.6d30.9d30.8d26.5d19.5d12.0d6.8d
Aransas County Airport 2.2d3.1d8.6d16.1d25.9d29.4d30.9d30.6d25.8d18.0d10.2d5.1d
South Brazos A70 6.1d6.9d11.0d16.6d26.2d29.4d30.9d30.7d26.0d18.0d11.4d8.3d

Average Wind Speed

Compare the Average Wind Speed in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph13.210.312.69.715.1NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 12.712.712.813.113.012.411.610.610.911.912.612.7
Mustang Beach Airport 12.612.612.813.112.912.311.610.610.811.812.512.7
Aransas County Airport 12.012.112.312.612.311.710.910.010.211.211.812.0
South Brazos A70 14.714.213.813.813.412.511.410.712.013.614.615.0

Average Water Temperature

Compare the Average Water Temperature in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F856466NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 66°F65°F66°F71°F77°F82°F84°F84°F84°F79°F73°F69°F
Mustang Beach Airport 66°F65°F66°F71°F77°F82°F84°F84°F84°F79°F73°F69°F
Aransas County Airport 66°F64°F66°F71°F77°F82°F84°F85°F84°F79°F73°F68°F
South Brazos A70 67°F66°F67°F71°F77°F82°F84°F85°F84°F80°F75°F70°F

Tourism Score

Compare the Tourism Score in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec002244668810107.22.8NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score

Compare the Beach/Pool Score in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec002244668810107.21.02.1NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season

Compare the Growing Season in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days

Compare the Growing Degree Days in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FNowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy

Compare the Average Daily Incident Shortwave Solar Energy in Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70JanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh6.93.1NowNowSouth Brazos A70South Brazos A70Mustang Beach AirportMustang Beach AirportPort AransasPort AransasAransas County AirportAransas County Airport
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Port Aransas 3.44.35.46.26.66.65.95.45.24.83.83.2
Mustang Beach Airport 3.44.35.46.26.66.65.95.45.24.83.83.2
Aransas County Airport 3.44.35.46.26.66.65.95.45.24.83.83.2
South Brazos A70 3.34.25.36.26.66.45.65.25.04.73.73.1

This report illustrates the typical weather for Port Aransas, Mustang Beach Airport, Aransas County Airport, and South Brazos A70 year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

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