Climateby Month

South Padre Island, TX climate by month

NOAA 1991-2020 normals · 10 ft elevation

Summers in South Padre Island are hot and oppressively humid; winters are mild. Highs peak at 90°F in August and fall to 68°F in January. The wettest month is September (about 11 wet days) and the driest is April (about 5). The most comfortable time to visit is January, February and December.

Warmest month
90°F
August normal high
Coldest month
55°F
January normal low
Wet days a year
77
26.8 in of precipitation
Muggy days a year
235
dew point 65°F or higher

How warm is South Padre Island?

Normal highs range from 68°F in January to 90°F in August.

50°60°70°80°90° January: normal high 68°F (20°C), low 55°F (13°C) 68° 55° February: normal high 71°F (22°C), low 57°F (14°C) March: normal high 75°F (24°C), low 63°F (17°C) April: normal high 79°F (26°C), low 69°F (21°C) May: normal high 84°F (29°C), low 74°F (23°C) June: normal high 88°F (31°C), low 78°F (26°C) July: normal high 89°F (32°C), low 79°F (26°C) August: normal high 90°F (32°C), low 79°F (26°C) 90° 79° September: normal high 89°F (32°C), low 77°F (25°C) October: normal high 85°F (29°C), low 73°F (23°C) November: normal high 78°F (26°C), low 65°F (18°C) December: normal high 72°F (22°C), low 57°F (14°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is South Padre Island?

September has the most wet days (about 11); the year brings about 27 in of precipitation.

January: 7 wet days February: 5 wet days March: 5 wet days April: 5 wet days 5 May: 5 wet days June: 6 wet days July: 5 wet days August: 6 wet days September: 11 wet days 11 October: 8 wet days November: 7 wet days December: 8 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How humid is South Padre Island?

Muggy days peak in July, at about 31 days.

January: 4 muggy days 4 February: 8 muggy days March: 13 muggy days April: 20 muggy days May: 28 muggy days June: 30 muggy days July: 31 muggy days 31 August: 31 muggy days September: 28 muggy days October: 22 muggy days November: 12 muggy days December: 8 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Brownsville/S Padre Island Intl Airport, 21 mi SW of the city center (the nearest airport with complete hourly records).

How much daylight?

Daylight ranges from about 10.5 hours in December to 13.7 hours in June.

January: 10.7 hours of daylight February: 11.3 hours of daylight March: 12.0 hours of daylight April: 12.8 hours of daylight May: 13.4 hours of daylight June: 13.7 hours of daylight 13.7 July: 13.6 hours of daylight August: 13.0 hours of daylight September: 12.3 hours of daylight October: 11.5 hours of daylight November: 10.9 hours of daylight December: 10.5 hours of daylight 10.5 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for South Padre Island, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 68°F55°F 1.1 in7 0.0 in 4 10.7 h
February 71°F57°F 1.0 in5 0.0 in 8 11.3 h
March 75°F63°F 1.4 in5 0.0 in 13 12.0 h
April 79°F69°F 1.5 in5 0.0 in 20 12.8 h
May 84°F74°F 2.2 in5 0.0 in 28 13.4 h
June 88°F78°F 2.9 in6 0.0 in 30 13.7 h
July 89°F79°F 2.0 in5 0.0 in 31 13.6 h
August 90°F79°F 2.2 in6 0.0 in 31 13.0 h
September 89°F77°F 5.7 in11 0.0 in 28 12.3 h
October 85°F73°F 3.8 in8 0.0 in 22 11.5 h
November 78°F65°F 1.8 in7 0.0 in 12 10.9 h
December 72°F57°F 1.2 in8 0.2 in 8 10.5 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit South Padre Island

By our comfort score, the best months are January, February and December.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 641320
Feb 641120
Mar 63920
Apr 58420
May 54021
Jun 51045
Jul 470312
Aug 400418
Sep 380813
Oct 48253
Nov 56730
Dec 631330

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in South Padre Island

A night at 32°F or below happens in about 35% of years in South Padre Island, so there is no typical frost date. In most years there is no frost at all.

Station: Port Isabel Cameron Airport (USW00012957), NOAA 1991-2020 freeze probabilities. Frost dates for every city in Texas.

Hottest and coldest readings, 1991-2020

The highest reading was 104°F (August 22, 2009); the lowest was 31°F (January 7, 2017, and 2 other days).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near South Padre Island

Similar climates elsewhere

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).

Distances from the city center (USGS). Methodology · Report an error