May weather forecast
Guynes, LA

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Weather in May

The last month of the spring, May, is another warm month in Guynes, Louisiana, with an average temperature ranging between max 84.7°F (29.3°C) and min 63.3°F (17.4°C).

Temperature

The start of May signals a slight increase in the average high-temperature, moving from 76.3°F (24.6°C) in April to a still warm 84.7°F (29.3°C). Guynes, in the month of May, anticipates a consistent average low-temperature of 63.3°F (17.4°C).

Heat index

For most parts of May, the heat index is calculated to be a tropical 93.2°F (34°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

The average relative humidity in May is 74%.

Rainfall

May is the month with the most rainfall. Rain falls for 14.8 days and accumulates 4.17" (106mm) of precipitation.

Snowfall

In Guynes, snow does not fall in April through November.

Daylight

In May, the average length of the day is 13h and 49min.
On the first day of May, sunrise is at 6:25 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:13 pm CDT.

Sunshine

In May, the average sunshine is 9.4h.

UV index

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 6 in May leads to these recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Jul 26, 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 84.7°F (29.3°C) and a low-temperature of 63.3°F (17.4°C). In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 93.2°F (34°C).

What is the average humidity in May?

The average relative humidity in May is 74%.

What is the rainiest month in Guynes?

May is the month with the most rainfall. Rain falls for 14.8 days and accumulates 4.17" (106mm) of precipitation.

How many days does it rain in May?

In Guynes, in May, during 14.8 rainfall days, 4.17" (106mm) of precipitation is typically accumulated.

When it does not snow?

In Guynes, snow does not fall in April through November.

How many hours of daylight does Guynes have in May?

The average day length in May is 13h and 49min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:25 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:13 pm CDT.

How long on average sun shines in May?

In Guynes, the average sunshine duration in May is 9.4h.

What is the UV index reading in May?

In May, the average daily maximum UV index in Guynes, Louisiana, is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
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
Guynes, LA

Average temperature in May - Guynes, LA
  • Average high temperature in May: 84.7°F

The warmest months (with the highest average high temperature) are July and August (94.6°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in May: 63.3°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

Average pressure in May
Guynes, LA

Average pressure in May - Guynes, LA
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Guynes, LA

Average wind speed in May - Guynes, LA
  • Average wind speed in May: 6.2mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

Average humidity in May
Guynes, LA

Average humidity in May - Guynes, LA
  • Average humidity in May: 74%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (69%).

Average rainfall in May
Guynes, LA

Average rainfall in May - Guynes, LA
  • Average rainfall in May: 4.17"

The wettest month (with the highest rainfall) is May (4.17").
The driest months (with the least rainfall) are July and September (2.52").

Average rainfall days in May
Guynes, LA

Average rainfall days in May - Guynes, LA
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is October (9.5 days).

Average snowfall in May
Guynes, LA

Average snowfall in May - Guynes, LA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Guynes, LA

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

The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Guynes, LA
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in May: 9h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in May
Guynes, LA

Average sunshine days in May - Guynes, LA
  • Average sunshine days in May: 14.3 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is February (12.9 days).

Average UV index in May
Guynes, LA

Average UV index in May - Guynes, LA
  • Average UV index in May: 6

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

Average cloud cover in May
Guynes, LA

Average cloud cover in May - Guynes, LA
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 29).

Average visibility in May
Guynes, LA

Average visibility in May - Guynes, LA
  • Average visibility in May: 5mi

The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).

Guynes, Louisiana, USA

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