May weather forecast
Thibodaux, LA

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Weather in May

As spring transitions into summer in Thibodaux, Louisiana, the weather conditions see an even more warmer transformation. May features longer daylight hours and correspondingly longer sunshine hours. Moreover, May warns of the impending intense summer rains with a significant increase in rainfall to 2.24" (57mm). As we look forward to June, the summer months generally bring increased humidity, more rainfall and warm temperature highs.

Temperature

As May arrives, a slight rise in the average high-temperature is observed, moving from a moderately hot 77.9°F (25.5°C) in April to a still warm 83.8°F (28.8°C). Thibodaux experiences a nighttime temperature average of 68°F (20°C) during May.

Heat index

For most parts of May, the heat index is evaluated at a tropical 93.2°F (34°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

The average relative humidity in May in Thibodaux is 77%.

Rainfall

In Thibodaux, in May, it is raining for 13.3 days, with typically 2.24" (57mm) of accumulated precipitation. In Thibodaux, during the entire year, the rain falls for 166.9 days and collects up to 25.39" (645mm) of precipitation.

Snowfall

February through November are months without snowfall.

Daylight

The average length of the day in May is 13h and 40min.
On the first day of May, sunrise is at 6:19 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 7:59 pm CDT.

Sunshine

In Thibodaux, Louisiana, the average sunshine in May is 10.5h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the maximum UV index of 7 translates into these guidelines:
Resist extreme sun exposure. Guarding against solar damage is essential. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Aug 13, 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 83.8°F (28.8°C) and a low-temperature of 68°F (20°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in May is evaluated at 93.2°F (34°C).

What is the average humidity in May?

In Thibodaux, the average relative humidity in May is 77%.

How many days does it rain in May?

In Thibodaux, in May, it is raining for 13.3 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow?

February through November are months without snowfall.

What is the average length of the day in May?

In Thibodaux, the average day length in May is 13h and 40min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:19 am and sunset at 7:40 pm. On the last day of the month, in Thibodaux, sunrise is at 6:03 am and sunset at 7:59 pm CDT.

How long on average sun shines in May?

In May, the average sunshine duration is 10.5h.

What are the months with the highest UV index in Thibodaux?

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

What is the UV index reading in May?

In Thibodaux, Louisiana, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's 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
Thibodaux, LA

Average temperature in May - Thibodaux, LA
  • Average high temperature in May: 83.8°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.8°F).

  • Average low temperature in May: 68°F

The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (46.2°F).

Average pressure in May
Thibodaux, LA

Average pressure in May - Thibodaux, LA
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in May
Thibodaux, LA

Average wind speed in May - Thibodaux, LA
  • Average wind speed in May: 6.6mph

The windiest months (with the highest average wind speed) are February and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in May
Thibodaux, LA

Average humidity in May - Thibodaux, LA
  • Average humidity in May: 77%

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

Average rainfall in May
Thibodaux, LA

Average rainfall in May - Thibodaux, LA
  • Average rainfall in May: 2.24"

The wettest month (with the highest rainfall) is July (4.61").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days in May
Thibodaux, LA

Average rainfall days in May - Thibodaux, LA
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (7.2 days).

Average snowfall days in May
Thibodaux, LA

Average snowfall days in May - Thibodaux, LA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Thibodaux, LA

Average daylight in May / Average sunshine in May - Thibodaux, 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 3min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in May
Thibodaux, LA

Average sunshine days in May - Thibodaux, LA
  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is August (5.8 days).

Average UV index in May
Thibodaux, LA

Average UV index in May - Thibodaux, LA
  • Average UV index in May: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).

Average cloud cover in May
Thibodaux, LA

Average cloud cover in May - Thibodaux, LA
  • Average cloud cover in May: 27

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in May
Thibodaux, LA

Average visibility in May - Thibodaux, 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).

Thibodaux, Louisiana, USA

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