May weather forecast
Saint Augustine Beach, FL

Weather in May

The last month of the spring, May, is another warm month in Saint Augustine Beach, Florida, with average temperature varying between 82.6°F (28.1°C) and 70.2°F (21.2°C).

Temperature

In Saint Augustine Beach, the average high-temperature is essentially the same as in April - a still moderately hot 82.6°F (28.1°C). The average low-temperature, in May, is 70.2°F (21.2°C).

Heat index

In May, the average heat index is computed to be a tropical 88.5°F (31.4°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, clothing, wind, and differences in body mass, height, and shape affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In May, the average relative humidity is 74%.

Rainfall

In Saint Augustine Beach, it is raining for 14.3 days, with typically 2.64" (67mm) of accumulated precipitation. In Saint Augustine Beach, during the entire year, the rain falls for 186.8 days and collects up to 30.2" (767mm) of precipitation.

Snowfall

February through November are months without snowfall in Saint Augustine Beach, Florida.

Daylight

In May, the average length of the day in Saint Augustine Beach is 13.7h.

Sunshine

In May, the average sunshine is 10.7h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in Saint Augustine Beach?

In Saint Augustine Beach, in May, the average high-temperature is 82.6°F (28.1°C), and the average low-temperature is 70.2°F (21.2°C). In May, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is computed to be 88.5°F (31.4°C).

What is the average humidity in May in Saint Augustine Beach?

The average relative humidity in May is 74%.

How much does it rain in Saint Augustine Beach in May?

In May, in Saint Augustine Beach, Florida, the rain falls for 14.3 days. Throughout May, 2.64" (67mm) of precipitation is accumulated.

When it does not snow in Saint Augustine Beach?

February through November are months without snowfall in Saint Augustine Beach, Florida.

What is the average length of the day in May in Saint Augustine Beach?

The average length of the day in May in Saint Augustine Beach is 13.7h.

How long on average sun shines in May in Saint Augustine Beach?

In May, the average sunshine in Saint Augustine Beach, Florida, is 10.7h.

What are the months with the highest UV index in Saint Augustine Beach?

May through August, with an average maximum UV index of 7, are months with the highest UV index in Saint Augustine Beach.

What is the UV index reading in May in Saint Augustine Beach?

The average daily maximum UV index in May in Saint Augustine Beach, Florida, is 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to the Sun's UV rays.

Average temperature in May
Saint Augustine Beach, FL

Average temperature in May - Saint Augustine Beach, FL
  • Average high temperature in May: 82.6°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (64°F).

  • Average low temperature in May: 70.2°F

The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (51.4°F).

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Average pressure in May
Saint Augustine Beach, FL

Average pressure in May - Saint Augustine Beach, FL
  • Average pressure in May: 30.02"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is September (29.98").

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Average wind speed in May
Saint Augustine Beach, FL

Average wind speed in May - Saint Augustine Beach, FL
  • Average wind speed in May: 7.9mph

The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity in May
Saint Augustine Beach, FL

Average humidity in May - Saint Augustine Beach, FL
  • Average humidity in May: 74%

Months with the highest relative humidity are July, August and December (77%).
The month with the lowest relative humidity is March (71%).

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Average rainfall in May
Saint Augustine Beach, FL

Average rainfall in May - Saint Augustine Beach, FL
  • Average rainfall in May: 2.64"

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (1.18").

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Average rainfall days in May
Saint Augustine Beach, FL

Average rainfall days in May - Saint Augustine Beach, FL
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is February (10.3 days).

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Average snowfall days in May
Saint Augustine Beach, FL

Average snowfall days in May - Saint Augustine Beach, FL
  • Average snowfall days in May: 0 days

Months with the highest number of snowfall days are January and December (0.1 days).
Months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Saint Augustine Beach, FL

Average daylight in May / Average sunshine in May - Saint Augustine Beach, FL
  • Average daylight in May: 13.7h

The month with the longest days is June (Average daylight: 14h).
The month with the shortest days is December (Average daylight: 10.3h).

  • Average sunshine in May: 10.7h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in May
Saint Augustine Beach, FL

Average sunshine days in May - Saint Augustine Beach, FL
  • Average sunshine days in May: 14.2 days

The month with the most sunshine days is March (17.9 days).
The month with the least sunshine days is August (4.4 days).

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Average UV index in May
Saint Augustine Beach, FL

Average UV index in May - Saint Augustine Beach, FL
  • Average UV index in May: 7

Months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in May
Saint Augustine Beach, FL

Average cloud cover in May - Saint Augustine 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).

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Average visibility in May
Saint Augustine Beach, FL

Average visibility in May - Saint Augustine Beach, FL
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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