May weather forecast
Saint Augustine Beach, FL

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Weather in May

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

Temperature

Saint Augustine Beach's average high-temperature in May is a still moderately hot 82.6°F (28.1°C), indicating a subtle variation from April. In May, Saint Augustine Beach's temperature tends to fall to an average low of 70.2°F (21.2°C) during the night.

Heat index

Throughout May, the heat index is estimated at a tropical 87.8°F (31°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

In Saint Augustine Beach, the average relative humidity in May is 74%.

Rainfall

In Saint Augustine Beach, in May, during 14.3 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Saint Augustine Beach, Florida, 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.

Daylight

The average length of the day in May in Saint Augustine Beach is 13h and 40min.
On the first day of the month, sunrise is at 6:41 am and sunset at 8:02 pm. On the last day of May, sunrise is at 6:24 am and sunset at 8:21 pm EDT.

Sunshine

In May, the average sunshine is 10.7h.

UV index

The months with the highest UV index in Saint Augustine Beach, Florida, are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: During May, 7 as the daily maximum UV index converts into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

Is it hot in Saint Augustine Beach during May?

The average high-temperature, in May, in Saint Augustine Beach, is 82.6°F (28.1°C), while the average low-temperature is 70.2°F (21.2°C). In May, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 87.8°F (31°C).

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

In Saint Augustine Beach, Florida, the average relative humidity in May is 74%.

How many days does it rain in May in Saint Augustine Beach?

In Saint Augustine Beach, Florida, in May, it is raining for 14.3 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow in Saint Augustine Beach?

In Saint Augustine Beach, Florida, snow does not fall in February through November.

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

In Saint Augustine Beach, the average day length in May is 13h and 40min.

When are sunrise and sunset in May in Saint Augustine Beach?

On the first day of May in Saint Augustine Beach, sunrise is at 6:41 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 8:21 pm EDT.

How many hours of sunshine does Saint Augustine Beach have in May?

The average sunshine duration in May in Saint Augustine Beach is 10.7h.

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

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

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

In May, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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"Hg

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

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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%

The 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

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).

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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: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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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

The 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

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).

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Saint Augustine Beach, Florida, USA

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