Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The start of May brings a subtle rise in the average high-temperature, moving from 74.8°F (23.8°C) in April to a still moderately hot 81.3°F (27.4°C). Dauphin Island, in May, observes a steady average low-temperature of 70.3°F (21.3°C).Heat index
For May, the heat index is appraised at a hot 86°F (30°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.In the scope of the heat index, its values resonate with shade and light wind conditions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humidity
In Dauphin Island, the average relative humidity in May is 74%.Rainfall
In Dauphin Island, Alabama, in May, it is raining for 13.1 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, there are 183.1 rainfall days, and 45.94" (1167mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Ocean temperature
In May, the average ocean temperature is 77.4°F (25.2°C).Note: Temperatures between 77°F (25°C) and 84.2°F (29°C) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.
Daylight
In May, the average length of the day is 13h and 41min.On the first day of May, sunrise is at 6:08 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 7:49 pm CDT.
Sunshine
In Dauphin Island, the average sunshine in May is 10.9h.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 7 during May translates into the following guidance:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be attentive! The UV exposure is heightened with reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
What is the water temperature in May?
How many hours of daylight does Dauphin Island have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Dauphin Island have in May?
When is the highest UV index?
What is the UV index reading in May?
Average temperature in May
Dauphin Island, AL
- Average high temperature in May: 81.3°F
The warmest month (with the highest average high temperature) is August (88.7°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in May: 70.3°F
The month with the highest average low temperature is August (78.8°F).
The coldest month (with the lowest average low temperature) is January (47.3°F).
Average pressure in May
Dauphin Island, AL
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in May
Dauphin Island, AL
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in May
Dauphin Island, AL
- Average humidity in May: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Dauphin Island, AL
- Average rainfall in May: 2.87"
The wettest month (with the highest rainfall) is August (6.89").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in May
Dauphin Island, AL
- Average rainfall days in May: 13.1 days
The month with the highest number of rainy days is July (25.3 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in May
Dauphin Island, AL
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.12").
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
Dauphin Island, AL
- 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 sea temperature in May
Dauphin Island, AL
- Average sea temperature in May: 77.4°F
The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest month (with the lowest average sea temperature) is January (58.7°F).
Average daylight in May /
Average sunshine in May
Dauphin Island, AL
- 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 5min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The months with the least sunshine are February and December (Average sunshine: 5h and 30min).
Average sunshine days in May
Dauphin Island, AL
- Average sunshine days in May: 14.9 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (3.9 days).
Average UV index in May
Dauphin Island, AL
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in May
Dauphin Island, AL
- Average cloud cover in May: 23
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 22).
Average visibility in May
Dauphin Island, AL
- 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).
Dauphin Island, Alabama, USA
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