May weather forecast
Port O'Connor, TX

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Weather in May

The last month of the spring, May, is another warm month in Port O'Connor, Texas, with an average temperature varying between 82.8°F (28.2°C) and 72.5°F (22.5°C).

Temperature

The beginning of May signals a minor rise in the average high-temperature, moving from 76.8°F (24.9°C) in April to a still warm 82.8°F (28.2°C). In May, the recorded average low-temperature is a pleasant 72.5°F (22.5°C).

Heat index

For May, the heat index is computed to be a tropical 89.6°F (32°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

In May, the average relative humidity is 78%.

Rainfall

In May, the rain falls for 12.6 days. Throughout May, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 156.1 rainfall days, and 23.66" (601mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Ocean temperature

In Port O'Connor, the average seawater temperature in May is 78.4°F (25.8°C).
Note: Water activities in surface temperatures between 77°F (25°C) and 84.2°F (29°C) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

The average length of the day in May is 13h and 35min.
On the first day of May, sunrise is at 6:44 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:18 pm CDT.

Sunshine

The average sunshine in May is 9.7h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 during May leads to these advisories:
Shield from overexposure. Defense against sun-related harm is required. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Attention! UV strength is notably upped by the reflection of sand and water.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is May?

May temperatures vary between a high-temperature of 82.8°F (28.2°C) and a low-temperature of 72.5°F (22.5°C). In May, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 89.6°F (32°C).

What is the average humidity in May?

In May, the average relative humidity is 78%.

How much does it rain in May?

In Port O'Connor, in May, during 12.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow?

In Port O'Connor, snow does not fall in February through December.

What is the ocean temperature in May?

In Port O'Connor, Texas, in May, the average water temperature is 78.4°F (25.8°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in May?

The average day length in May is 13h and 35min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:44 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 8:18 pm CDT.

How many hours of sunshine does Port O'Connor have in May?

The average sunshine duration in May is 9.7h.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 7.

What is the UV index intensity in May?

In Port O'Connor, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Port O'Connor, TX

Average temperature in May - Port O
  • Average high temperature in May: 82.8°F

The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is January (62.2°F).

  • Average low temperature in May: 72.5°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).

Average pressure in May
Port O'Connor, TX

Average pressure in May - Port O
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Port O'Connor, TX

Average wind speed in May - Port O
  • Average wind speed in May: 11.1mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is September (8.5mph).

Average humidity in May
Port O'Connor, TX

Average humidity in May - Port O
  • Average humidity in May: 78%

The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Port O'Connor, TX

Average rainfall in May - Port O
  • Average rainfall in May: 2.13"

The wettest month (with the highest rainfall) is September (4.25").
The driest month (with the least rainfall) is February (0.87").

Average rainfall days in May
Port O'Connor, TX

Average rainfall days in May - Port O
  • Average rainfall days in May: 12.6 days

The month with the highest number of rainy days is September (20 days).
The month with the least rainy days is January (10.8 days).

Average snowfall in May
Port O'Connor, TX

Average snowfall in May - Port O
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Port O'Connor, TX

Average snowfall days in May - Port O
  • Average snowfall days in May: 0 days

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

Average sea temperature in May
Port O'Connor, TX

Average sea temperature in May - Port O
  • Average sea temperature in May: 78.5°F

The best month for swimming (with the highest average sea temperature) is August (87°F).
The coldest months (with the lowest average sea temperature) are January and February (60.8°F).

Average daylight in May /
Average sunshine in May
Port O'Connor, TX

Average daylight in May / Average sunshine in May - Port O
  • Average daylight in May: 13h and 4min

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 May: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in May
Port O'Connor, TX

Average sunshine days in May - Port O
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is January (17.5 days).
The month with the least sunshine days is September (8.5 days).

Average UV index in May
Port O'Connor, TX

Average UV index in May - Port O
  • Average UV index in May: 7

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

Average cloud cover in May
Port O'Connor, TX

Average cloud cover in May - Port O
  • Average cloud cover in May: 36

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in May
Port O'Connor, TX

Average visibility in May - Port O
  • Average visibility in May: 6mi

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).

Port O'Connor, Texas, USA

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