Climate and monthly weather forecast
San Isidro, TX

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Weather in January

January, the same as December, in San Isidro, Texas, is another pleasant winter month, with an average temperature varying between 52.7°F (11.5°C) and 69.8°F (21°C). San Isidro notes the coldest temperatures in January, with a high average of 69.8°F (21°C) and a low of 52.7°F (11.5°C). Weather in January »

Weather in February

February, the last month of the winter in San Isidro, is a warm month, with an average temperature ranging between min 57°F (13.9°C) and max 75.7°F (24.3°C). A subtle rise in the average high-temperature is observed during February, adjusting from an agreeable 69.8°F (21°C) in January to a warm 75.7°F (24.3°C). Weather in February »

Weather in March

The first month of the spring, March, is also a moderately hot month in San Isidro, Texas, with an average temperature varying between 83.3°F (28.5°C) and 62.4°F (16.9°C). San Isidro's weather shows a minor temperature rise with the arrival of March, moving from 75.7°F (24.3°C) in February to a still moderately hot 83.3°F (28.5°C). Weather in March »

Weather in April

April in San Isidro, Texas, is a tropical spring month, with an average temperature fluctuating between 90.1°F (32.3°C) and 68.4°F (20.2°C). San Isidro in April denotes a subtle temperature transition, adjusting from an average high of a warm 83.3°F (28.5°C) in March to a tropical 90.1°F (32.3°C). Weather in April »

Weather in May

May, the last month of the spring in San Isidro, is another hot month, with an average temperature ranging between min 73°F (22.8°C) and max 93.9°F (34.4°C). May's onset records a minor alteration in the average high-temperature to a still tropical 93.9°F (34.4°C) from April's 90.1°F (32.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a torrid month in San Isidro, Texas, with temperature in the range of an average high of 97.7°F (36.5°C) and an average low of 76.8°F (24.9°C). With the transition into June, San Isidro notes an average high-temperature of a fiery hot 97.7°F (36.5°C), closely resembling May. Weather in June »

Weather in July

July, like June, in San Isidro, Texas, is another torrid summer month, with an average temperature varying between 78.4°F (25.8°C) and 99.3°F (37.4°C). July's onset records a minor alteration in the average high-temperature to a still fiery hot 99.3°F (37.4°C) from June's 97.7°F (36.5°C). Weather in July »

Weather in August

The last month of the summer, August, is also a fiery hot month in San Isidro, Texas, with an average temperature ranging between max 100°F (37.8°C) and min 80.1°F (26.7°C). The month of August sees the highest average temperatures, reaching 100°F (37.8°C) at the peak and 80.1°F (26.7°C) at the low. The heat index for August is estimated at a burning hot 122°F (50°C). Weather in August »

Weather in September

September, the first month of the autumn in San Isidro, is also a hot month, with temperature in the range of an average high of 93°F (33.9°C) and an average low of 77°F (25°C). Transition into September subtly marks a drop in the average high-temperature, moderately moving from a very hot 100°F (37.8°C) in August to a hot 93°F (33.9°C). Weather in September »

Weather in October

October, like September, is another hot autumn month in San Isidro, Texas, with temperature in the range of an average low of 70°F (21.1°C) and an average high of 87.6°F (30.9°C). October's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from September's 93°F (33.9°C) to a still hot 87.6°F (30.9°C). Weather in October »

Weather in November

November, the last month of the autumn in San Isidro, is also a moderately hot month, with an average temperature fluctuating between 61°F (16.1°C) and 77.5°F (25.3°C). San Isidro's transition into November involves a shift in temperature, receding from a tropical 87.6°F (30.9°C) in October to a moderately hot 77.5°F (25.3°C). Weather in November »

Weather in December

The first month of the winter, December, is still a pleasant month in San Isidro, Texas, with an average temperature varying between 70.9°F (21.6°C) and 54.5°F (12.5°C). The beginning of December brings a minor change in the average high-temperature, shifting from a warm 77.5°F (25.3°C) in November to an agreeable 70.9°F (21.6°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in San Isidro?

San Isidro's coldest month, January, generally records average temperatures ranging from a high of 69.8°F (21°C) to a low of 52.7°F (11.5°C).

How much does it rain in San Isidro?

In San Isidro, during the entire year, the rain falls for 98.5 days and collects up to 13.11" (333mm) of precipitation.

When does it snow in San Isidro?

January and February are months with snowfall in San Isidro, Texas.

What is the snowiest month in San Isidro?

The months with the most snowfall days in San Isidro are January and February, with an average of 0.1 snowfall days.

How many days does it snow in San Isidro?

In San Isidro, during the entire year, snow falls for 0.2 days.

What is the driest month in San Isidro?

February is the month with the least rainfall. Rain falls for 5.8 days and accumulates 0.47" (12mm) of precipitation.

When it does not snow in San Isidro?

In San Isidro, snow does not fall in March through December.

When is Daylight Saving Time (DST) in San Isidro?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in San Isidro, Texas, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

When are the longest days in San Isidro?

With an average of 13h and 48min of daylight, June has the longest days of the year in San Isidro, Texas.

What is the month with the most sunshine in San Isidro?

The months with the most sunshine in San Isidro, Texas, are June and July, with an average of 11.3h of sunshine.

What is the month with the highest UV index in San Isidro?

July and August, with an average maximum UV index of 8, are months with the highest UV index.

What are the warmest months in San Isidro?

In San Isidro, August records the average highest temperatures, peaking at 100°F (37.8°C) and reaching a low of 80.1°F (26.7°C).

What is the least humid month in San Isidro?

With an average relative humidity of 53%, August is the least humid month in San Isidro.

What is the rainiest month in San Isidro?

September is the month with the most rainfall. Rain falls for 15.3 days and accumulates 2.56" (65mm) of precipitation.

What is the most humid month in San Isidro?

December is the most humid month, with an average relative humidity of 65%.

What is the month with the shortest days in San Isidro?

December has the shortest days of the year in San Isidro, with an average of 10h and 30min of daylight.

What is the month with the least sunshine in San Isidro?

The month with the least sunshine in San Isidro is December, with an average of 5.8h of sunshine.

When is the lowest UV index in San Isidro?

With an average maximum UV index of 4, December is the month with the lowest UV index in San Isidro.

Average temperature
San Isidro, TX

Average temperature - San Isidro, TX

The warmest month (with the highest average high temperature) is August (100°F).
The month with the lowest average high temperature is January (69.8°F).

The month with the highest average low temperature is August (80.1°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).

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Average pressure
San Isidro, TX

Average pressure - San Isidro, TX

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).

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Average wind speed
San Isidro, TX

Average wind speed - San Isidro, TX

The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is December (9.2mph).

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Average rainfall
San Isidro, TX

Average rainfall - San Isidro, TX

The wettest month (with the highest rainfall) is September (2.56").
The driest month (with the least rainfall) is February (0.47").

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Average rainfall days
San Isidro, TX

Average rainfall days - San Isidro, TX

The month with the highest number of rainy days is September (15.3 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall days
San Isidro, TX

Average snowfall days - San Isidro, TX

The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight / Average sunshine
San Isidro, TX

Average daylight / Average sunshine - San Isidro, TX

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days
San Isidro, TX

Average sunshine days - San Isidro, TX

The months with the most sunshine days are July and August (22.6 days).
The month with the least sunshine days is September (12.9 days).

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Average visibility
San Isidro, TX

Average visibility - San Isidro, 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).

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San Isidro, Texas, USA

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