, with a very mild winter (but with the possibility of short cold spells) and a very hot, muggy summer.
, near the mouth of the Rio Grande River and the town of Port Isabel, to which it is connected by a bridge, the Queen Isabella Causeway. The lagoon that separates the island from the mainland is called Laguna Madre.
Being surrounded by water, the island is less exposed to the extreme temperatures that can affect the cities of the Rio Grande Valley. On the other hand, the humidity is even higher.
of the coldest month (January) is of 16.1 °C (61.1 °F), that of the warmest month (August) is of 29.7 °C (85.4 °F).
, from December to February, is mild.
The sun shines quite often, although there are periods characterized by clouds, rain and wind.
There may be warm periods even in the middle of winter, with highs around 25 °C (77 °F) and more.
, with highs below 10 °C (50 °F). Very rarely, as happened on Christmas 2004, in December 2017 and in February 2021, it can even
. However, even in these cases, the temperature generally drops to about 0 °C (32 °F) or slightly below.
, from June to September, is very hot and sunny, with some thunderstorms. There combination of humidity and temperature makes the heat sweltering (but it is still better than in Texas cities, also because of the breeze).
There can be long, very hot periods even in May and October. However, the temperature generally reaches 37/38 °C (99/100 °F) on the hottest days of the year, while in the cities of the interior, it exceeds 40 °C (104 °F).
From June to November (but with a higher probability from August to October), there is the risk of
. Being a flat island, South Padre is particularly at risk, and for example, it was hit hard by Hurricane Dolly in late July 2008.
temperature ranges between 20 °C (68 °F) and 29 °C (84 °F). From January to March, the sea is very cool, while it becomes pleasantly warm for swimming from June to October.
You can visit South Padre Island in spring, from mid-March to mid-April: temperatures are generally pleasant and there are many sunny days. However, it can sometimes get a little cold at night, and the sea is still cool.
May is a great month for a beach holiday: the sea is already warm enough, and it is not as muggy as in midsummer.
In summer, there is sultry heat, and there is also the risk (even if it is low in percentage) that a hurricane will arrive.
. Here are the average temperatures.
January, the coldest month of the year, is generally a very mild month. The average temperature is of
16.1 °C, with a minimum of
11.1 °C and a maximum of
21.2 °C.
On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
-1.7 °C in January 2017.
On the warmest days of the month, the temperature usually reaches around
28.5 °C. However, it reached
34.4 °C in January 2017.
Precipitation amounts to
25 mm, distributed over 8 days.
The day lasts on average 10 hours and 40 minutes.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
17.6 kph.
The average sea temperature is of
20.6 °C. Therefore, the sea is cool for swimming.
February is generally a warm month. The average temperature is of
18.2 °C, with a minimum of
13.3 °C and a maximum of
23.1 °C.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
-2.2 °C in February 2011.
On the warmest days of the month, the temperature usually reaches around
30 °C. However, it reached
33.3 °C in February 2016.
Precipitation amounts to
30 mm, distributed over 6 days.
The day lasts on average 11 hours and 20 minutes.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
19.4 kph.
The average sea temperature is of
19.8 °C. Therefore, the sea is very cool for swimming.
March is generally a warm month. The average temperature is of
21 °C, with a minimum of
16.4 °C and a maximum of
25.6 °C.
On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
2.2 °C in March 2010.
On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
38.3 °C in March 2009.
Precipitation amounts to
30 mm, distributed over 5 days.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
20.7 kph.
The average sea temperature is of
20.2 °C. Therefore, the sea is very cool for swimming.
April is generally a warm to hot, muggy month. The average temperature is of
24 °C, with a minimum of
19.7 °C and a maximum of
28.3 °C.
On the coldest nights of the month, the temperature usually drops to around
11.5 °C. However, it dropped to
6 °C in April 2007.
On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
38.9 °C in April 2017.
Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 12 hours and 50 minutes.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
21.9 kph.
The average sea temperature is of
22.2 °C. Therefore, the sea is cool for swimming.
May is generally a warm to hot, muggy month. The average temperature is of
27 °C, with a minimum of
22.9 °C and a maximum of
31.1 °C.
On the coldest nights of the month, the temperature usually drops to around
16 °C. However, it dropped to
10.6 °C in May 2013.
On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
36 °C in May 2004.
Precipitation amounts to
55 mm, distributed over 4 days.
The day lasts on average 13 hours and 25 minutes.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
22 kph.
The average sea temperature is of
25.2 °C. Therefore, the sea is warm enough for swimming.
June is generally a very hot, muggy month. The average temperature is of
29 °C, with a minimum of
24.9 °C and a maximum of
33.1 °C.
On the coldest nights of the month, the temperature usually drops to around
22 °C. However, it dropped to
19.4 °C in June 2016.
On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
42.8 °C in June 2019.
Precipitation amounts to
70 mm, distributed over 5 days.
The day lasts on average 13 hours and 50 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
19.9 kph.
The average sea temperature is of
27.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
July is generally a very hot, muggy month. The average temperature is of
29.5 °C, with a minimum of
25.4 °C and a maximum of
33.6 °C.
On the coldest nights of the month, the temperature usually drops to around
23 °C. However, it dropped to
21.1 °C in July 2019.
On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
38.9 °C in July 2018.
Precipitation amounts to
35 mm, distributed over 5 days.
The day lasts on average 13 hours and 35 minutes.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
19.3 kph.
The average sea temperature is of
28.4 °C. Therefore, the sea is pleasantly warm and allows long swims.
August, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of
29.7 °C, with a minimum of
25.2 °C and a maximum of
34.1 °C.
On the coldest nights of the month, the temperature usually drops to around
23 °C. However, it dropped to
20.6 °C in August 2015.
On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
38.9 °C in August 2010.
Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 13 hours and 0 minutes.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
17.2 kph.
The average sea temperature is of
28.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
September is generally a very hot, muggy month. The average temperature is of
28.1 °C, with a minimum of
23.8 °C and a maximum of
32.4 °C.
On the coldest nights of the month, the temperature usually drops to around
20 °C. However, it dropped to
17 °C in September 2001.
On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
38.3 °C in September 2011.
Precipitation amounts to
135 mm, distributed over 10 days.
The day lasts on average 12 hours and 20 minutes.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
14.7 kph.
The average sea temperature is of
28.8 °C. Therefore, the sea is pleasantly warm and allows long swims.
October is generally a warm to hot, muggy month. The average temperature is of
25 °C, with a minimum of
20.3 °C and a maximum of
29.6 °C.
On the coldest nights of the month, the temperature usually drops to around
12 °C. However, it dropped to
7.8 °C in October 2017.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
35 °C in October 2012.
Precipitation amounts to
70 mm, distributed over 7 days.
The day lasts on average 11 hours and 30 minutes.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
15.9 kph.
The average sea temperature is of
27.1 °C. Therefore, the sea is pleasantly warm and allows long swims.
November is generally a warm month. The average temperature is of
20.8 °C, with a minimum of
15.9 °C and a maximum of
25.6 °C.
On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
1.7 °C in November 2011.
On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
33.3 °C in November 2010.
Precipitation amounts to
50 mm, distributed over 8 days.
The day lasts on average 10 hours and 55 minutes.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
16.4 kph.
The average sea temperature is of
24.4 °C. Therefore, the sea is warm enough for swimming.
December is generally a very mild month. The average temperature is of
17.2 °C, with a minimum of
12.2 °C and a maximum of
22.3 °C.
On the coldest nights of the month, the temperature usually drops to around
3.5 °C. However, it dropped to
-1.1 °C in December 2009.
On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
32.8 °C in December 2015.
Precipitation amounts to
30 mm, distributed over 7 days.
The day lasts on average 10 hours and 30 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
17 kph.
The average sea temperature is of
22.1 °C. Therefore, the sea is cool for swimming.