May weather forecast and climate
Austin, TX

The beautiful Lady Bird Lake passing through the city skyscrapers of Austin city, Texas
The beautiful Lady Bird Lake passing through the city skyscrapers of Austin city, Texas

Weather in May

The last month of the spring, May, is also a moderately hot month in Austin, Texas, with average temperature fluctuating between 83.8°F (28.8°C) and 66°F (18.9°C).

Temperature

In Austin, the average high-temperature in May marginally rises, from a warm 77.2°F (25.1°C) in April, to a still moderately hot 83.8°F (28.8°C). The average low-temperature, in Austin, is 66°F (18.9°C).

Heat index

The average heat index is appraised at a tropical 91.8°F (33.2°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, pregnancy, metabolic differences, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

May is the most humid month in Austin, with an average relative humidity of 75%.

Rainfall

The month with the most rainfall is May when the rain falls for 16.2 days and typically aggregates up to 3.78" (96mm) of precipitation.

Snowfall

March through December are months without snowfall in Austin.

Daylight

The average length of the day in Austin, Texas, is 13.7h.

Sunshine

The average sunshine in Austin is 8.2h.

UV index

The average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in May in Austin?

In May, in Austin, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'real feel', 'feels like'), that factores the actual air temperature with the relative humidity, in May is evaluated at 91.8°F (33.2°C).

What is the most humid month in Austin?

With an average relative humidity of 75%, May is the most humid month in Austin.

What is the average humidity in May in Austin?

In May, the average relative humidity in Austin, Texas, is 75%.

How much does it rain in Austin in May?

In Austin, Texas, during May, the rain falls for 16.2 days and regularly aggregates up to 3.78" (96mm) of precipitation.

What is the rainiest month in Austin?

The month with the most rainfall in Austin, Texas, is May when the rain falls for 16.2 days and typically aggregates up to 3.78" (96mm) of precipitation.

When it does not snow in Austin?

In Austin, Texas, snow does not fall in March through December.

How many hours of daylight does Austin have in May?

In May, the average length of the day is 13.7h.

How long on average sun shines in May in Austin?

In Austin, Texas, the average sunshine in May is 8.2h.

How high is the UV index in May in Austin?

In Austin, Texas, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to the Sun's UV rays.

Average temperature in May
Austin, TX

Average temperature in May - Austin, TX
  • Average high temperature in May: 83.8°F

The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in May: 66°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).

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Average pressure in May
Austin, TX

Average pressure in May - Austin, TX
  • Average pressure in May: 29.92"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in May
Austin, TX

Average wind speed in May - Austin, TX
  • Average wind speed in May: 8.6mph

The windiest month (with the highest average wind speed) is March (9.2mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).

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Average humidity in May
Austin, TX

Average humidity in May - Austin, TX
  • Average humidity in May: 75%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (59%).

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Average rainfall in May
Austin, TX

Average rainfall in May - Austin, TX
  • Average rainfall in May: 3.78"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.91").

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Average rainfall days in May
Austin, TX

Average rainfall days in May - Austin, TX
  • Average rainfall days in May: 16.2 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (8.2 days).

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Average snowfall in May
Austin, TX

Average snowfall in May - Austin, TX
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.4").
Months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in May
Austin, TX

Average snowfall days in May - Austin, TX
  • Average snowfall days in May: 0 days

Months with the highest number of snowfall days are January and February (0.3 days).
Months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).

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Average daylight in May /
Average sunshine in May
Austin, TX

Average daylight in May / Average sunshine in May - Austin, TX
  • Average daylight in May: 13.7h

The month with the longest days is June (Average daylight: 14.1h).
The month with the shortest days is December (Average daylight: 10.2h).

  • Average sunshine in May: 8.2h

Months with the most sunshine are July and August (Average sunshine: 10.3h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in May
Austin, TX

Average sunshine days in May - Austin, TX
  • Average sunshine days in May: 11.1 days

The month with the most sunshine days is January (20.5 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in May
Austin, TX

Average UV index in May - Austin, TX
  • Average UV index in May: 6

Months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Austin, TX

Average cloud cover in May - Austin, TX
  • Average cloud cover in May: 45

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in May
Austin, TX

Average visibility in May - Austin, TX
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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