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 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
With the onset of May, a modest change to a still moderately hot 83.1°F (28.4°C) from April's 79.3°F (26.3°C) is noted in high-temperature. Port Saint John anticipates an average minimum temperature of 71.4°F (21.9°C) in the month of May.Heat index
For May, the heat index is appraised at a hot 89.6°F (32°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
In May, the average relative humidity is 75%.Rainfall
In Port Saint John, in May, it is raining for 15.6 days, with typically 3.9" (99mm) of accumulated precipitation. In Port Saint John, during the entire year, the rain falls for 202 days and collects up to 40.2" (1021mm) of precipitation.Daylight
The average length of the day in May is 13h and 35min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:58 pm. On the last day of May, in Port Saint John, sunrise is at 6:25 am and sunset at 8:16 pm EDT.
Sunshine
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 value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 7 in May converts into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
How hot is it in Port Saint John in May?
What is the average humidity in May in Port Saint John?
How much does it rain in Port Saint John in May?
How many hours of daylight does Port Saint John have in May?
When are sunrise and sunset in May in Port Saint John?
How long on average sun shines in May in Port Saint John?
What are the months with the highest UV index in Port Saint John?
What is the UV index reading in May in Port Saint John?
Average temperature in May
Port Saint John, FL
- Average high temperature in May: 83.1°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 (68.4°F).
- Average low temperature in May: 71.4°F
The month with the highest average low temperature is August (77.9°F).
The coldest month (with the lowest average low temperature) is January (56.1°F).
Average pressure in May
Port Saint John, FL
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in May
Port Saint John, FL
- Average wind speed in May: 7.7mph
The windiest months (with the highest average wind speed) are January and November (8.8mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in May
Port Saint John, FL
- Average humidity in May: 75%
The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is March (71%).
Average rainfall in May
Port Saint John, FL
- Average rainfall in May: 3.9"
The wettest month (with the highest rainfall) is August (6.81").
The driest month (with the least rainfall) is March (1.42").
Average rainfall days in May
Port Saint John, FL
- Average rainfall days in May: 15.6 days
The months with the highest number of rainy days are July and August (25.8 days).
The month with the least rainy days is February (10.8 days).
Average daylight in May /
Average sunshine in May
Port Saint John, FL
- Average daylight in May: 13h and 4min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in May: 10h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January, November and December (Average sunshine: 6h and 6min).
Average sunshine days in May
Port Saint John, FL
- Average sunshine days in May: 13.4 days
The months with the most sunshine days are January and March (17.2 days).
The month with the least sunshine days is August (2.3 days).
Average UV index in May
Port Saint John, 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 month with the lowest UV index is January (UV index 4).
Average cloud cover in May
Port Saint John, FL
- Average cloud cover in May: 26
The months with the most cloud cover are January, November and December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in May
Port Saint John, 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).
Port Saint John, Florida, USA
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