Climate and monthly weather forecastIslitas, TX
Climate and monthly weather forecast
Weather in January
January, the same as December, is another comfortable winter month in Islitas, Texas, with an average temperature ranging between min 50.2°F (10.1°C) and max 66.9°F (19.4°C). The lowest temperatures are recorded in January, with averages reaching a high of 66.9°F (19.4°C) and a low of 50.2°F (10.1°C). Weather in January »Weather in February
The last month of the winter, February, is an agreeable month in Islitas, Texas, with an average temperature ranging between max 72.7°F (22.6°C) and min 54°F (12.2°C). February's arrival brings a slight change in high-temperatures, adjusting from a comfortable 66.9°F (19.4°C) in January to a pleasant 72.7°F (22.6°C). Weather in February »Weather in March
March, the first month of the spring in Islitas, is a warm month, with an average temperature varying between 60.6°F (15.9°C) and 80.4°F (26.9°C). March witnesses a subtle temperature ascent, adjusting from a pleasant 72.7°F (22.6°C) in February to a warm 80.4°F (26.9°C). Weather in March »Weather in April
April in Islitas, Texas, is a tropical spring month, with an average temperature ranging between max 88°F (31.1°C) and min 66.7°F (19.3°C). Islitas's transition into April is marked by a minor temperature shift, moving from a moderately hot 80.4°F (26.9°C) in March to a hot 88°F (31.1°C). Weather in April »Weather in May
The last month of the spring, May, is another hot month in Islitas, Texas, with an average temperature varying between 93.2°F (34°C) and 73°F (22.8°C). The shift into May records an average high-temperature of a still tropical 93.2°F (34°C), subtly varied from April's 88°F (31.1°C). Weather in May »Weather in June
June, the first month of the summer in Islitas, is a very hot month, with an average temperature ranging between max 98.2°F (36.8°C) and min 77.2°F (25.1°C). The advent of June brings an average high-temperature of a very hot 98.2°F (36.8°C), exhibiting minor difference from the previous month. Weather in June »Weather in July
July, like June, in Islitas, Texas, is a very hot summer month, with temperature in the range of an average low of 78.8°F (26°C) and an average high of 99.7°F (37.6°C). The commencement of July records an average high-temperature of a still fiery hot 99.7°F (37.6°C), barely varying from June's 98.2°F (36.8°C). Weather in July »Weather in August
August, the last month of the summer in Islitas, is another torrid month, with temperature in the range of an average high of 100°F (37.8°C) and an average low of 79.9°F (26.6°C). August is the month when Islitas experiences its warmest temperatures, averaging a high of 100°F (37.8°C) and a low of 79.9°F (26.6°C). During August, the heat index is appraised at a blazing hot 116.6°F (47°C). Weather in August »Weather in September
September, the first month of the autumn in Islitas, is still a tropical month, with temperature in the range of an average high of 92.5°F (33.6°C) and an average low of 76.1°F (24.5°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a sweltering 100°F (37.8°C) in August to a hot 92.5°F (33.6°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Islitas, Texas, with an average temperature ranging between max 85.6°F (29.8°C) and min 68.2°F (20.1°C). The arrival of October suggests a slight decrease in the average high-temperature, moving from a hot 92.5°F (33.6°C) in September to a warm 85.6°F (29.8°C). Weather in October »Weather in November
November, the last month of the autumn in Islitas, is also a moderately hot month, with an average temperature ranging between max 75.7°F (24.3°C) and min 58.6°F (14.8°C). In November, the average high-temperature decreases from a warm 85.6°F (29.8°C) in October to a still moderately hot 75.7°F (24.3°C). Weather in November »Weather in December
The first month of the winter, December, is also an enjoyable month in Islitas, Texas, with temperature in the range of an average low of 51.6°F (10.9°C) and an average high of 67.6°F (19.8°C). As December arrives, Islitas's weather displays a minor decrease in high-temperatures, transitioning from November's warm 75.7°F (24.3°C) to a refreshing 67.6°F (19.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Islitas, TX
The warmest month (with the highest average high temperature) is August (100°F).
The month with the lowest average high temperature is January (66.9°F).
The month with the highest average low temperature is August (79.9°F).
The coldest month (with the lowest average low temperature) is January (50.2°F).
Average pressure
Islitas, TX
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.88"Hg - Average pressure in May:
29.86"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.89"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.86"Hg).
Average wind speed
Islitas, TX
- Average wind speed in January:
9.1mph - Average wind speed in February:
10mph - Average wind speed in March:
11.6mph - Average wind speed in April:
12.3mph - Average wind speed in May:
13.4mph - Average wind speed in June:
13.3mph
- Average wind speed in July:
13.5mph - Average wind speed in August:
12.1mph - Average wind speed in September:
10mph - Average wind speed in October:
10.3mph - Average wind speed in November:
9.8mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is July (13.5mph).
The calmest month (with the lowest average wind speed) is December (8.9mph).
Average humidity
Islitas, TX
The month with the highest relative humidity is December (62%).
The month with the lowest relative humidity is August (49%).
Average rainfall
Islitas, TX
- Average rainfall in January:
0.47" - Average rainfall in February:
0.43" - Average rainfall in March:
0.63" - Average rainfall in April:
0.87" - Average rainfall in May:
1.65" - Average rainfall in June:
0.87"
- Average rainfall in July:
0.83" - Average rainfall in August:
0.67" - Average rainfall in September:
2.17" - Average rainfall in October:
0.94" - Average rainfall in November:
0.47" - Average rainfall in December:
0.55"
The wettest month (with the highest rainfall) is September (2.17").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days
Islitas, TX
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
5.8 days - Average rainfall days in March:
7.7 days - Average rainfall days in April:
9.6 days - Average rainfall days in May:
9.2 days - Average rainfall days in June:
7.3 days
- Average rainfall days in July:
7.9 days - Average rainfall days in August:
6.5 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
6.6 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is September (12.9 days).
The month with the least rainy days is November (5.5 days).
Average snowfall days
Islitas, TX
- Average snowfall days in January:
0.2 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Islitas, TX
- Average daylight in January:
10h and 36min - Average daylight in February:
11h and 12min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 48min - Average daylight in May:
13h and 30min - Average daylight in June:
13h and 54min
- Average daylight in July:
13h and 42min - Average daylight in August:
13h and 6min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 30min - Average daylight in November:
10h and 48min - Average daylight in December:
10h and 24min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in January:
7h and 12min - Average sunshine in February:
7h and 42min - Average sunshine in March:
7h and 48min - Average sunshine in April:
8h and 12min - Average sunshine in May:
9h and 24min - Average sunshine in June:
11h and 6min
- Average sunshine in July:
11h and 12min - Average sunshine in August:
9h and 36min - Average sunshine in September:
8h and 36min - Average sunshine in October:
8h and 0min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days
Islitas, TX
- Average sunshine days in January:
23.3 days - Average sunshine days in February:
20.5 days - Average sunshine days in March:
21.7 days - Average sunshine days in April:
18.3 days - Average sunshine days in May:
18.7 days - Average sunshine days in June:
21.3 days
- Average sunshine days in July:
21.8 days - Average sunshine days in August:
22.9 days - Average sunshine days in September:
15.1 days - Average sunshine days in October:
22.9 days - Average sunshine days in November:
22.2 days - Average sunshine days in December:
22.7 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is September (15.1 days).
Average UV index
Islitas, TX
The months with the highest UV index are July and August (UV index 8).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover
Islitas, TX
The month with the most cloud cover is December (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility
Islitas, TX
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





