May weather forecastStock Island, FL
May
Weather in May
May, the last month of the spring in Stock Island, is another warm month, with temperature in the range of an average low of 77.9°F (25.5°C) and an average high of 80.2°F (26.8°C).Temperature
Stock Island's shift into May is marked by a subtle change to a still warm 80.2°F (26.8°C) from April's 77.4°F (25.2°C) in temperature. Stock Island maintains an average low-temperature of 77.9°F (25.5°C) throughout May's nights.Humidity
The average relative humidity in May is 77%.Rainfall
In May, in Stock Island, the rain falls for 16.5 days. Throughout May, 3.5" (89mm) of precipitation is accumulated. Throughout the year, there are 199.2 rainfall days, and 31.61" (803mm) of precipitation is accumulated.Ocean temperature
In Stock Island, in May, the average water temperature is 80.8°F (27.1°C).Note: For swimming, diving, or other water activities, the temperature range of 77°F (25°C) to 84.2°F (29°C) is perceived as exceptionally enjoyable and comfortable even for prolonged periods.
Daylight
In Stock Island, the average length of the day in May is 13h and 20min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:56 pm. On the last day of May, sunrise is at 6:37 am and sunset at 8:11 pm EDT.
Sunshine
The average sunshine in May is 10.9h.UV index
April through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a regular UV index of 7 translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Notice! The Sun's UV exposure elevates with sand and water reflections.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Stock Island, FL
- Average high temperature in May: 80.2°F
The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°F).
- Average low temperature in May: 77.9°F
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).
Average pressure in May
Stock Island, FL
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are September and October (29.93"Hg).
Average wind speed in May
Stock Island, FL
- Average wind speed in May: 12.2mph
The windiest months (with the highest average wind speed) are January and November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).
Average humidity in May
Stock Island, FL
- Average humidity in May: 77%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall in May
Stock Island, FL
- Average rainfall in May: 3.5"
The wettest month (with the highest rainfall) is September (5.12").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in May
Stock Island, FL
- Average rainfall days in May: 16.5 days
The months with the highest number of rainy days are August and September (23.1 days).
The month with the least rainy days is February (11 days).
Average sea temperature in May
Stock Island, FL
- Average sea temperature in May: 80.7°F
The best month for swimming (with the highest average sea temperature) is August (86.9°F).
The coldest months (with the lowest average sea temperature) are January and February (71.2°F).
Average daylight in May /
Average sunshine in May
Stock Island, FL
- Average daylight in May: 13h and 18min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in May: 10h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in May
Stock Island, FL
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (4.5 days).
Average UV index in May
Stock Island, FL
- Average UV index in May: 7
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in May
Stock Island, FL
- Average cloud cover in May: 26
The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility in May
Stock Island, 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).
