May weather forecast
Bayou Vista, LA

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Weather in May

May, the last month of the spring in Bayou Vista, is another warm month, with an average temperature ranging between max 83.3°F (28.5°C) and min 69.1°F (20.6°C).

Temperature

May's arrival coincides with a marginal rise in the average high-temperature, moving from April's 77.4°F (25.2°C) to a still warm 83.3°F (28.5°C). In Bayou Vista, the average nighttime temperature during May is a pleasant 69.1°F (20.6°C).

Heat index

In May, the average heat index is computed to be a tropical 91.4°F (33°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

The average relative humidity in May is 76%.

Rainfall

In Bayou Vista, in May, it is raining for 8.9 days, with typically 0.83" (21mm) of accumulated precipitation. In Bayou Vista, during the entire year, the rain falls for 128.6 days and collects up to 13.27" (337mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

In Bayou Vista, the average length of the day in May is 13h and 39min.
On the first day of the month, sunrise is at 6:21 am and sunset at 7:42 pm. On the last day of May, sunrise is at 6:05 am and sunset at 8:00 pm CDT.

Sunshine

In Bayou Vista, Louisiana, the average sunshine in May is 10.8h.

UV index

The months with the highest UV index in Bayou Vista are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 7 during May translates into the following directions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full 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.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during May?

The average high-temperature and low-temperature during May are 83.3°F (28.5°C) and 69.1°F (20.6°C) respectively. In May, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 91.4°F (33°C).

What is the average humidity in May?

In Bayou Vista, the average relative humidity in May is 76%.

How much does it rain in May?

In May, the rain falls for 8.9 days. Throughout May, 0.83" (21mm) of precipitation is accumulated.

When it does not snow?

In Bayou Vista, Louisiana, snow does not fall in February through December.

How many hours of daylight does Bayou Vista have in May?

In May, the average day length is 13h and 39min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:21 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:00 pm CDT.

How long on average sun shines in May?

In Bayou Vista, the average sunshine duration in May is 10.8h.

When is 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 reading in May?

In Bayou Vista, the average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Bayou Vista, LA

Average temperature in May - Bayou Vista, LA
  • Average high temperature in May: 83.3°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (60.1°F).

  • Average low temperature in May: 69.1°F

The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).

Average pressure in May
Bayou Vista, LA

Average pressure in May - Bayou Vista, LA
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.96"Hg).

Average wind speed in May
Bayou Vista, LA

Average wind speed in May - Bayou Vista, LA
  • Average wind speed in May: 7.4mph

The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in May
Bayou Vista, LA

Average humidity in May - Bayou Vista, LA
  • Average humidity in May: 76%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall in May
Bayou Vista, LA

Average rainfall in May - Bayou Vista, LA
  • Average rainfall in May: 0.83"

The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is March (0.43").

Average rainfall days in May
Bayou Vista, LA

Average rainfall days in May - Bayou Vista, LA
  • Average rainfall days in May: 8.9 days

The month with the highest number of rainy days is August (20 days).
The month with the least rainy days is November (6 days).

Average snowfall days in May
Bayou Vista, LA

Average snowfall days in May - Bayou Vista, LA
  • Average snowfall days in May: 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 in May /
Average sunshine in May
Bayou Vista, LA

Average daylight in May / Average sunshine in May - Bayou Vista, LA
  • Average daylight in May: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in May: 10h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in May
Bayou Vista, LA

Average sunshine days in May - Bayou Vista, LA
  • Average sunshine days in May: 20.3 days

The month with the most sunshine days is November (23 days).
The month with the least sunshine days is August (6.9 days).

Average UV index in May
Bayou Vista, LA

Average UV index in May - Bayou Vista, LA
  • 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
Bayou Vista, LA

Average cloud cover in May - Bayou Vista, LA
  • Average cloud cover in May: 25

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 23).

Average visibility in May
Bayou Vista, LA

Average visibility in May - Bayou Vista, LA
  • 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).

Bayou Vista, Louisiana, USA

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