May weather forecast
Galliano, LA

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Weather in May

The last month of the spring, May, is another warm month in Galliano, Louisiana, with temperature in the range of an average low of 70.5°F (21.4°C) and an average high of 83.1°F (28.4°C).

Temperature

The arrival of May witnesses a small shift in the average high-temperature, moving from a moderately hot 77.4°F (25.2°C) in April to a still warm 83.1°F (28.4°C). An average temperature of 70.5°F (21.4°C) marks the nights in May.

Heat index

In May, the average heat index is computed to be a hot 89.6°F (32°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to 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

The average relative humidity in May is 75%.

Rainfall

In Galliano, during May, the rain falls for 10.7 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Galliano, during the entire year, the rain falls for 139.9 days and collects up to 16.38" (416mm) of precipitation.

Daylight

In Galliano, the average length of the day in May is 13h and 38min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:38 pm. On the last day of May, sunrise is at 6:01 am and sunset at 7:56 pm CDT.

Sunshine

In Galliano, Louisiana, the average sunshine in May is 10.7h.

UV index

The months with the highest UV index in Galliano are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 7 in May transforms into this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

How hot does it get in Galliano in May?

The high-temperature, in May, in Galliano, records 83.1°F (28.4°C), while the low-temperature is 70.5°F (21.4°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in May is computed to be 89.6°F (32°C).

What is the average humidity in May in Galliano?

In May, the average relative humidity in Galliano, Louisiana, is 75%.

How much does it rain in Galliano in May?

In Galliano, during May, the rain falls for 10.7 days and regularly aggregates up to 1.26" (32mm) of precipitation.

How many hours of daylight does Galliano have in May?

In May, the average day length in Galliano, Louisiana, is 13h and 38min.

What time are sunrise and sunset in May in Galliano?

On the first day of May in Galliano, Louisiana, sunrise is at 6:18 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:56 pm CDT.

How long on average sun shines in May in Galliano?

In Galliano, the average sunshine duration in May is 10.7h.

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

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

How high is the UV index in May in Galliano?

In Galliano, 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Galliano, LA

Average temperature in May - Galliano, LA
  • Average high temperature in May: 83.1°F

The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is January (61.5°F).

  • Average low temperature in May: 70.5°F

The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is January (49.1°F).

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Average pressure in May
Galliano, LA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).

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Average wind speed in May
Galliano, LA

Average wind speed in May - Galliano, LA
  • Average wind speed in May: 8.2mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in May
Galliano, LA

Average humidity in May - Galliano, LA
  • Average humidity in May: 75%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
Galliano, LA

Average rainfall in May - Galliano, LA
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is August (2.76").
The driest month (with the least rainfall) is March (0.63").

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Average rainfall days in May
Galliano, LA

Average rainfall days in May - Galliano, LA
  • Average rainfall days in May: 10.7 days

The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (6.5 days).

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

Average daylight in May / Average sunshine in May - Galliano, 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 4min

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 24min).

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Average sunshine days in May
Galliano, LA

Average sunshine days in May - Galliano, LA
  • Average sunshine days in May: 17.8 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is August (8.4 days).

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Average UV index in May
Galliano, LA

Average UV index in May - Galliano, 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 and December (UV index 4).

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Average cloud cover in May
Galliano, LA

Average cloud cover in May - Galliano, LA
  • Average cloud cover in May: 25

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 24).

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Average visibility in May
Galliano, LA

Average visibility in May - Galliano, 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).

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Galliano, Louisiana, USA

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