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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in San Juan, Texas, is an agreeable winter month, with an average temperature fluctuating between 53.4°F (11.9°C) and 69.6°F (20.9°C). San Juan experiences its lowest average temperatures in January, reaching a peak of 69.6°F (20.9°C) and a minimum of 53.4°F (11.9°C). Weather in January »
Weather in February
February, the last month of the winter in San Juan, is a moderately hot month, with an average temperature varying between 57.9°F (14.4°C) and 75.4°F (24.1°C). The shift from January to February sees a slight increase in the average high-temperature, transitioning from a pleasant 69.6°F (20.9°C) to a warm 75.4°F (24.1°C). Weather in February »
Weather in March
March, the first month of the spring in San Juan, is also a moderately hot month, with an average temperature ranging between max 82°F (27.8°C) and min 63.1°F (17.3°C). The arrival of March signals a slight increase in the average high-temperature, moving from 75.4°F (24.1°C) in February to a still warm 82°F (27.8°C). Weather in March »
Weather in April
April is a hot spring month in San Juan, Texas, with an average temperature ranging between min 68.4°F (20.2°C) and max 88.3°F (31.3°C). As San Juan, Texas, welcomes April, the average high-temperature displays a subtle shift, adjusting from a moderately hot 82°F (27.8°C) in March to a hot 88.3°F (31.3°C). Weather in April »
Weather in May
May, the last month of the spring in San Juan, is another tropical month, with an average temperature ranging between max 91.8°F (33.2°C) and min 72.9°F (22.7°C). May commences with an average high-temperature of a still hot 91.8°F (33.2°C), showing little deviation from April's 88.3°F (31.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a torrid month in San Juan, Texas, with an average temperature fluctuating between 95.5°F (35.3°C) and 76.6°F (24.8°C). The arrival of June coincides with an average high-temperature of a fiery hot 95.5°F (35.3°C), indicating a minimal shift from May's 91.8°F (33.2°C). Weather in June »
Weather in July
July, like June, in San Juan, Texas, is another fiery hot summer month, with an average temperature varying between 77.5°F (25.3°C) and 97.3°F (36.3°C). The start of July marks an average high-temperature of a still very hot 97.3°F (36.3°C), hardly distinguishable from the conditions in June. Weather in July »
Weather in August
August, the last month of the summer in San Juan, is another very hot month, with an average temperature ranging between min 79.7°F (26.5°C) and max 98.2°F (36.8°C). The warmest month is August, with an average high-temperature of 98.2°F (36.8°C) and an average low-temperature of 79.7°F (26.5°C). For August, the heat index is calculated to be a life-threatening hot 122°F (50°C). Weather in August »
Weather in September
September, the first month of the autumn in San Juan, is also a hot month, with an average temperature varying between 92.5°F (33.6°C) and 77.2°F (25.1°C). The start of September signals a gentle decrease in the average high-temperature, transitioning from a fiery hot 98.2°F (36.8°C) in August to a hot 92.5°F (33.6°C). Weather in September »
Weather in October
October, the same as September, in San Juan, Texas, is a hot autumn month, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 70.7°F (21.5°C). The onset of October marks an average high-temperature of a still hot 87.3°F (30.7°C), hardly differing from September's 92.5°F (33.6°C). Weather in October »
Weather in November
November, the last month of the autumn in San Juan, is another warm month, with an average temperature ranging between min 61.9°F (16.6°C) and max 77.7°F (25.4°C). In San Juan, entering November brings a temperature decrement, reducing from October's tropical 87.3°F (30.7°C) to a warm 77.7°F (25.4°C). Weather in November »
Weather in December
December, the first month of the winter in San Juan, is also an agreeable month, with an average temperature varying between 71.4°F (21.9°C) and 56.1°F (13.4°C). The onset of December results in a small decrease in the average high-temperature, moderately receding from a moderately hot 77.7°F (25.4°C) in November to an agreeable 71.4°F (21.9°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in San Juan?
With average temperatures fluctuating between a high of 69.6°F (20.9°C) and a low of 53.4°F (11.9°C), January stands out as the coldest month in San Juan, Texas.
What is the driest month in San Juan?
January and February are months with the least rain in San Juan when the rain falls for 6.3 days and typically aggregates up to 0.31" (8mm) of rain.
How much does it rain in San Juan?
Throughout the year, in San Juan, Texas, there are 94.1 rainfall days, and 9.06" (230mm) of precipitation is accumulated.
When does it snow in San Juan?
January is the only month when snow falls in San Juan.
What is the snowiest month in San Juan?
January is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.12" (3mm) of snow.
How much does it snow in San Juan?
Throughout the year, in San Juan, there are 0.1 snowfall days, and 0.12" (3mm) of snow is accumulated.
When it does not snow in San Juan?
February through December are months without snowfall in San Juan, Texas.
When is Daylight Saving Time (DST) in San Juan?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in San Juan, 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.
What is the most humid month in San Juan?
With an average relative humidity of 69%, May is the most humid month in San Juan, Texas.
When are the longest days in San Juan?
June has the longest days of the year in San Juan, Texas, with an average of 13h and 48min of daylight.
What month has the most sunshine in San Juan?
With an average of 11.4h of sunshine, July has the most sunshine of the year.
What are the months with the highest UV index in San Juan?
The months with the highest UV index are July and August, with an average maximum UV index of 8.
What month is the hottest in San Juan?
August, noted for its average high-temperature of 98.2°F (36.8°C) and an average low-temperature of 79.7°F (26.5°C), is considered the warmest month in San Juan, Texas.
What is the least humid month in San Juan?
August is the least humid month, with an average relative humidity of 59%.
What is the rainiest month in San Juan?
September is the month with the most rainfall in San Juan. Rain falls for 15.1 days and accumulates 1.46" (37mm) of precipitation.
What is the month with the shortest days in San Juan?
The month with the shortest days in San Juan is December, with an average of 10h and 30min of daylight.
What is the month with the least sunshine in San Juan?
December has the least sunshine of the year in San Juan, Texas, with an average of 5.5h of sunshine.
When is the lowest UV index in San Juan?
December is the month with the lowest UV index in San Juan, Texas, with an average maximum UV index of 4.
Average temperature
San Juan, TX
The warmest month (with the highest average high temperature) is August (98.2°F).
The month with the lowest average high temperature is January (69.6°F).
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (53.4°F).
Average pressure
San Juan, TX
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.89"Hg - Average pressure in May:
29.87"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.91"Hg - Average pressure in October:
29.96"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.07"Hg
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).
Average wind speed
San Juan, TX
- Average wind speed in January:
9.5mph - Average wind speed in February:
10.7mph - Average wind speed in March:
11.9mph - Average wind speed in April:
12.1mph - Average wind speed in May:
12.4mph - Average wind speed in June:
11.2mph
- Average wind speed in July:
12.2mph - Average wind speed in August:
10.9mph - Average wind speed in September:
8.9mph - Average wind speed in October:
9.3mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is May (12.4mph).
The calmest month (with the lowest average wind speed) is September (8.9mph).
Average humidity
San Juan, TX
The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is August (59%).
Average rainfall
San Juan, TX
- Average rainfall in January:
0.31" - Average rainfall in February:
0.31" - Average rainfall in March:
0.39" - Average rainfall in April:
0.39" - Average rainfall in May:
0.98" - Average rainfall in June:
1.26"
- Average rainfall in July:
1.34" - Average rainfall in August:
0.71" - Average rainfall in September:
1.46" - Average rainfall in October:
0.79" - Average rainfall in November:
0.63" - Average rainfall in December:
0.47"
The wettest month (with the highest rainfall) is September (1.46").
The driest months (with the least rainfall) are January and February (0.31").
Average rainfall days
San Juan, TX
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
5.4 days - Average rainfall days in March:
6.8 days - Average rainfall days in April:
7.3 days - Average rainfall days in May:
8 days - Average rainfall days in June:
9.3 days
- Average rainfall days in July:
6.5 days - Average rainfall days in August:
6.9 days - Average rainfall days in September:
15.1 days - Average rainfall days in October:
8.7 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
6.3 days
The month with the highest number of rainy days is September (15.1 days).
The month with the least rainy days is February (5.4 days).
Average snowfall
San Juan, TX
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days
San Juan, TX
- Average snowfall days in January:
0.1 days - Average snowfall days in February:
0 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 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
San Juan, TX
- Average daylight in January:
10h and 4min - Average daylight in February:
11h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 5min - Average daylight in May:
13h and 2min - Average daylight in June:
13h and 5min
- Average daylight in July:
13h and 4min - Average daylight in August:
13h and 0min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 3min - Average daylight in November:
10h and 5min - Average daylight in December:
10h and 3min
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).
- Average sunshine in January:
6h and 5min - Average sunshine in February:
7h and 3min - Average sunshine in March:
7h and 5min - Average sunshine in April:
8h and 2min - Average sunshine in May:
10h and 0min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
11h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 4min - Average sunshine in October:
7h and 5min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days
San Juan, TX
- Average sunshine days in January:
22.5 days - Average sunshine days in February:
21 days - Average sunshine days in March:
22.5 days - Average sunshine days in April:
21.2 days - Average sunshine days in May:
20.5 days - Average sunshine days in June:
19.3 days
- Average sunshine days in July:
23 days - Average sunshine days in August:
22.9 days - Average sunshine days in September:
12.5 days - Average sunshine days in October:
20.6 days - Average sunshine days in November:
20.1 days - Average sunshine days in December:
22.5 days
The month with the most sunshine days is July (23 days).
The month with the least sunshine days is September (12.5 days).
Average UV index
San Juan, TX
The months with the highest UV index are July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover
San Juan, TX
The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility
San Juan, 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).
San Juan, Texas, USA
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