May weather forecast
Brittany, LA

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Weather in May

May, the last month of the spring in Brittany, is another warm month, with an average temperature fluctuating between 84.7°F (29.3°C) and 66°F (18.9°C).

Temperature

May comes with a subtle rise, with the average high-temperature adjusting from 78.4°F (25.8°C) in April to a still moderately hot 84.7°F (29.3°C). Throughout May, Brittany witnesses a consistent average low-temperature of 66°F (18.9°C).

Heat index

The heat index for May is computed to be a very hot 95°F (35°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in May is 77%.

Rainfall

In Brittany, in May, it is raining for 13 days, with typically 1.77" (45mm) of accumulated precipitation. In Brittany, during the entire year, the rain falls for 151.5 days and collects up to 18.62" (473mm) of precipitation.

Snowfall

In Brittany, snow does not fall in February through December.

Daylight

In Brittany, the average length of the day in May is 13h and 41min.
On the first day of the month, sunrise is at 6:19 am and sunset at 7:41 pm. On the last day of May, sunrise is at 6:02 am and sunset at 8:00 pm CDT.

Sunshine

The average sunshine in May is 10h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 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. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

How hot is it in May?

In May, in Brittany, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in May is computed to be 95°F (35°C).

What is the average humidity in May?

The average relative humidity in May is 77%.

How much does it rain in May?

In Brittany, during May, the rain falls for 13 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow?

In Brittany, snow does not fall in February through December.

What is the average length of the day in May?

The average day length in May is 13h and 41min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:19 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:00 pm CDT.

How long on average sun shines in May?

The average sunshine duration in May is 10h.

What are the months with the highest UV index?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Brittany, LA

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

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (59.2°F).

  • Average low temperature in May: 66°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).

Average pressure in May
Brittany, LA

Average pressure in May - Brittany, 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
Brittany, LA

Average wind speed in May - Brittany, LA
  • Average wind speed in May: 5.8mph

The windiest months (with the highest average wind speed) are February and April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in May
Brittany, LA

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

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall in May
Brittany, LA

Average rainfall in May - Brittany, LA
  • Average rainfall in May: 1.77"

The wettest month (with the highest rainfall) is July (3.03").
The driest months (with the least rainfall) are March and November (0.98").

Average rainfall days in May
Brittany, LA

Average rainfall days in May - Brittany, LA
  • Average rainfall days in May: 13 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (7.9 days).

Average snowfall in May
Brittany, LA

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

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Brittany, LA

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

The month with the highest number of snowfall days is January (0.2 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
Brittany, LA

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

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

  • Average sunshine in May: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in May
Brittany, LA

Average sunshine days in May - Brittany, LA
  • Average sunshine days in May: 15.4 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (9.3 days).

Average UV index in May
Brittany, LA

Average UV index in May - Brittany, 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
Brittany, LA

Average cloud cover in May - Brittany, LA
  • Average cloud cover in May: 33

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 26).

Average visibility in May
Brittany, LA

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

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

Brittany, Louisiana, USA

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