May weather forecast
Morgan City, LA

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Weather in May

The weather shift in May once again takes a turn, making the citizens of Morgan City, Louisiana, adjust their wardrobes. There's a sudden rise in the temperature, preparing the city for the approaching summer. The cool spring rapidly makes way for the summer heat. Despite the intense temperatures, the wind eases up considerably to a calming 7.4mph (11.9km/h). The late spring transformation provides an interesting weather dynamic, leaving an imprint on the city's character.

Temperature

The embrace of May brings a minor uplift in the average high-temperature, shifting from 77.4°F (25.2°C) in April to a still moderately hot 83.3°F (28.5°C). During the nights in May, an average low-temperature of 69.1°F (20.6°C) is observed.

Heat index

The heat index value during May is evaluated at a hot 91.4°F (33°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

In May, the average relative humidity in Morgan City, Louisiana, is 76%.

Rainfall

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

Snowfall

In Morgan City, snow does not fall in February through December.

Daylight

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 6:04 am and sunset at 8:00 pm CDT.

Sunshine

The average sunshine in May is 10.8h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. 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: In May, a regular UV index of 7 translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in May?

The high-temperature, in May, in Morgan City, is 83.3°F (28.5°C), while the low-temperature averages to 69.1°F (20.6°C). In May, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 91.4°F (33°C).

What is the average humidity in May?

In May, the average relative humidity is 76%.

How much does it rain in May?

In Morgan City, during May, the rain falls for 8.9 days and regularly aggregates up to 0.83" (21mm) of precipitation.

When it does not snow?

February through December are months without snowfall.

What is the average length of the day in May?

The average day length in May 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 6:04 am and sunset at 8:00 pm CDT.

How long on average sun shines in May?

In Morgan City, the average sunshine duration in May is 10.8h.

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 Morgan City?

In Morgan City, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
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
Morgan City, LA

Average temperature in May - Morgan City, 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
Morgan City, LA

Average pressure in May - Morgan City, 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
Morgan City, LA

Average wind speed in May - Morgan City, 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
Morgan City, LA

Average humidity in May - Morgan City, 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
Morgan City, LA

Average rainfall in May - Morgan City, 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
Morgan City, LA

Average rainfall days in May - Morgan City, 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
Morgan City, LA

Average snowfall days in May - Morgan City, 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
Morgan City, LA

Average daylight in May / Average sunshine in May - Morgan City, 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
Morgan City, LA

Average sunshine days in May - Morgan City, 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
Morgan City, LA

Average UV index in May - Morgan City, 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
Morgan City, LA

Average cloud cover in May - Morgan City, 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
Morgan City, LA

Average visibility in May - Morgan City, 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).

Morgan City, Louisiana, USA

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