May weather forecastSaint Marks, FL
May
Weather in May
May, the last month of the spring in Saint Marks, is a moderately hot month, with an average temperature varying between 70.9°F (21.6°C) and 79.5°F (26.4°C).Temperature
The onset of May marks a slight increase in the average high-temperature, moving from a pleasant 73.2°F (22.9°C) in April to a moderately hot 79.5°F (26.4°C). During the month of May, Saint Marks's average nighttime temperature closely mirrors its daytime counterpart, at an agreeable 70.9°F (21.6°C).Humidity
In Saint Marks, the average relative humidity in May is 75%.Rainfall
In Saint Marks, in May, during 13.1 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Saint Marks, during the entire year, the rain falls for 173 days and collects up to 43.74" (1111mm) of precipitation.Daylight
In Saint Marks, the average length of the day in May is 13h and 41min.On the first day of the month, sunrise is at 6:52 am and sunset at 8:14 pm. On the last day of May, sunrise is at 6:35 am and sunset at 8:33 pm EDT.
Sunshine
With an average of 11h of sunshine, May has the most sunshine of the year.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: In May, a regular UV index of 7 translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Saint Marks, FL
- Average high temperature in May: 79.5°F
The warmest months (with the highest average high temperature) are July and August (86.5°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in May: 70.9°F
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).
Average pressure in May
Saint Marks, FL
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in May
Saint Marks, FL
- Average wind speed in May: 9.2mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in May
Saint Marks, FL
- Average humidity in May: 75%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Saint Marks, FL
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is August (8.35").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in May
Saint Marks, FL
- Average rainfall days in May: 13.1 days
The month with the highest number of rainy days is August (26.1 days).
The month with the least rainy days is November (7.4 days).
Average daylight in May /
Average sunshine in May
Saint Marks, 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: 11h
The month with the most sunshine is May (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6h).
Average sunshine days in May
Saint Marks, FL
- Average sunshine days in May: 16.4 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is August (2.7 days).
Average UV index in May
Saint Marks, FL
- 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
Saint Marks, FL
- Average cloud cover in May: 21
The month with the most cloud cover is December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 21).
Average visibility in May
Saint Marks, 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).
