May weather forecastJacksonville Beach, FL
May
Weather in May
May, the last month of the spring in Jacksonville Beach, is also a moderately hot month, with an average temperature ranging between max 83.1°F (28.4°C) and min 69.6°F (20.9°C).Temperature
Jacksonville Beach's May weather indicates a minor ascent in high-temperatures, adjusting from 77.5°F (25.3°C) in April to a still moderately hot 83.1°F (28.4°C). May witnesses an average low-temperature hovering around a pleasant 69.6°F (20.9°C).Heat index
Throughout May, the heat index is calculated to be a hot 89.6°F (32°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.One should consider that heat index numbers are for shaded settings and light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
In May, the average relative humidity is 72%.Rainfall
In Jacksonville Beach, during May, the rain falls for 13.9 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 185.5 rainfall days, and 31.54" (801mm) of precipitation is accumulated.Snowfall
February through November are months without snowfall.Ocean temperature
In Jacksonville Beach, the average seawater temperature in May is 74.8°F (23.8°C).Note: Think about diving into 74.8°F (23.8°C) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 77°F (25°C) and 82.4°F (28°C).
Daylight
In Jacksonville Beach, the average length of the day in May is 13h and 41min.On the first day of the month, sunrise is at 6:41 am and sunset at 8:03 pm. On the last day of May, sunrise is at 6:24 am and sunset at 8:22 pm EDT.
Sunshine
In Jacksonville Beach, the average sunshine in May is 10.7h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, a daily maximum UV index of 7 leads to the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Jacksonville Beach, FL
- Average high temperature in May: 83.1°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (63.3°F).
- Average low temperature in May: 69.6°F
The months with the highest average low temperature are July and August (77.5°F).
The coldest month (with the lowest average low temperature) is January (50.4°F).
Average pressure in May
Jacksonville Beach, FL
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are August and September (29.98"Hg).
Average wind speed in May
Jacksonville Beach, FL
- Average wind speed in May: 7.7mph
The windiest months (with the highest average wind speed) are January, March, April, October and November (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in May
Jacksonville Beach, FL
- Average humidity in May: 72%
The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is March (70%).
Average rainfall in May
Jacksonville Beach, FL
- Average rainfall in May: 2.68"
The wettest month (with the highest rainfall) is August (4.8").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in May
Jacksonville Beach, FL
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is August (25.3 days).
The month with the least rainy days is February (9.8 days).
Average snowfall days in May
Jacksonville Beach, FL
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in May
Jacksonville Beach, FL
- Average sea temperature in May: 74.9°F
The best month for swimming (with the highest average sea temperature) is August (83.2°F).
The coldest months (with the lowest average sea temperature) are January and February (60.7°F).
Average daylight in May /
Average sunshine in May
Jacksonville Beach, FL
- Average daylight in May: 13h and 42min
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 42min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in May
Jacksonville Beach, FL
- Average sunshine days in May: 14.6 days
The month with the most sunshine days is January (18.8 days).
The month with the least sunshine days is August (4.2 days).
Average UV index in May
Jacksonville Beach, FL
- 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).
Average cloud cover in May
Jacksonville Beach, FL
- Average cloud cover in May: 26
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in May
Jacksonville Beach, FL
- 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).
