May weather forecast
Highland Beach, FL

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Weather in May

The last month of the spring, May, is another warm month in Highland Beach, Florida, with an average temperature ranging between max 81.5°F (27.5°C) and min 75.9°F (24.4°C).

Temperature

Highland Beach, Florida, starts May with an average high-temperature of a still moderately hot 81.5°F (27.5°C), a minor shift from April's 79.2°F (26.2°C). May notes an average low temperature of 75.9°F (24.4°C), subtly down from the daytime highs.

Heat index

Throughout May, the heat index is calculated to be a hot 86°F (30°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
In reference to the heat index, it's for places in shade and with a slight wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

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

Rainfall

In Highland Beach, Florida, in May, it is raining for 21 days, with typically 7.05" (179mm) of accumulated precipitation. Throughout the year, there are 244.6 rainfall days, and 68.54" (1741mm) of precipitation is accumulated.

Daylight

In May, the average length of the day is 13h and 27min.
On the first day of May, sunrise is at 6:41 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:08 pm EDT.

Sunshine

In May, the average sunshine is 10.5h.

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 hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum daily UV index of 7 during May morphs into the following directions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The high-temperature, in May, in Highland Beach, is 81.5°F (27.5°C), while the low-temperature averages to 75.9°F (24.4°C). In May, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in May?

The average relative humidity in May is 74%.

How many days does it rain in May?

In Highland Beach, during May, the rain falls for 21 days and regularly aggregates up to 7.05" (179mm) of precipitation.

How many hours of daylight does Highland Beach have in May?

The average day length in May in Highland Beach is 13h and 27min.

What time are sunrise and sunset in May in Highland Beach?

On the first day of May, sunrise is at 6:41 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:08 pm EDT.

How many hours of sunshine does Highland Beach have in May?

The average sunshine duration in May is 10.5h.

What are the months with the highest UV index?

May through September, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in May?

The average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Highland Beach, FL

Average temperature in May - Highland Beach, FL
  • Average high temperature in May: 81.5°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (72.5°F).

  • Average low temperature in May: 75.9°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).

Average pressure in May
Highland Beach, FL

Average pressure in May - Highland Beach, FL
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

Average wind speed in May
Highland Beach, FL

Average wind speed in May - Highland Beach, FL
  • Average wind speed in May: 10.3mph

The windiest month (with the highest average wind speed) is March (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in May
Highland Beach, FL

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

The months with the highest relative humidity are June and December (75%).
The month with the lowest relative humidity is March (70%).

Average rainfall in May
Highland Beach, FL

Average rainfall in May - Highland Beach, FL
  • Average rainfall in May: 7.05"

The wettest month (with the highest rainfall) is August (12.05").
The driest month (with the least rainfall) is January (1.57").

Average rainfall days in May
Highland Beach, FL

Average rainfall days in May - Highland Beach, FL
  • Average rainfall days in May: 21 days

The month with the highest number of rainy days is August (29.3 days).
The month with the least rainy days is February (12.7 days).

Average daylight in May /
Average sunshine in May
Highland Beach, FL

Average daylight in May / Average sunshine in May - Highland Beach, FL
  • Average daylight in May: 13h and 2min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in May: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 12min).

Average sunshine days in May
Highland Beach, FL

Average sunshine days in May - Highland Beach, FL
  • Average sunshine days in May: 8.7 days

The month with the most sunshine days is March (13.3 days).
The month with the least sunshine days is August (0.9 days).

Average UV index in May
Highland Beach, FL

Average UV index in May - Highland Beach, 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 5).

Average cloud cover in May
Highland Beach, FL

Average cloud cover in May - Highland Beach, FL
  • Average cloud cover in May: 29

The month with the most cloud cover is October (Cloud cover 36).
The months with the least cloud cover are March, April, May and July (Cloud cover 29).

Average visibility in May
Highland Beach, FL

Average visibility in May - Highland 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).

Highland Beach, Florida, USA

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