May weather forecast
Harbour Heights, FL

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Weather in May

May, the last month of the spring in Harbour Heights, is a hot month, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 71.2°F (21.8°C).

Temperature

During May, Harbour Heights records an average high-temperature of a tropical 87.3°F (30.7°C), marking a slight divergence from April's 83.8°F (28.8°C). The temperature in Harbour Heights dips to an average of 71.2°F (21.8°C) during May nights.

Heat index

In May, the average heat index is calculated to be a torrid 98.6°F (37°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in May is 71%.

Rainfall

In Harbour Heights, during May, the rain falls for 15.9 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, there are 181.8 rainfall days, and 29.37" (746mm) of precipitation is accumulated.

Daylight

In May, the average length of the day is 13h and 29min.
On the first day of the month, sunrise is at 6:48 am and sunset at 8:01 pm. On the last day of May, sunrise is at 6:33 am and sunset at 8:17 pm EDT.

Sunshine

In Harbour Heights, Florida, the average sunshine in May is 10.7h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 7 in May translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Harbour Heights during May?

During May, Harbour Heights experiences an average high-temperature of 87.3°F (30.7°C) and a low-temperature of 71.2°F (21.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in May is calculated to be 98.6°F (37°C).

What is the average humidity in May in Harbour Heights?

In May, the average relative humidity in Harbour Heights is 71%.

How many days does it rain in May in Harbour Heights?

In Harbour Heights, in May, it is raining for 15.9 days, with typically 3.19" (81mm) of accumulated precipitation.

How many hours of daylight does Harbour Heights have in May?

In Harbour Heights, Florida, the average day length in May is 13h and 29min.

What time are sunrise and sunset in May in Harbour Heights?

On the first day of May in Harbour Heights, Florida, sunrise is at 6:48 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:17 pm EDT.

How long on average sun shines in May in Harbour Heights?

In Harbour Heights, Florida, the average sunshine duration in May is 10.7h.

What are the months with the highest UV index in Harbour Heights?

The months with the highest UV index in Harbour Heights, Florida, are May through September, with an average maximum UV index of 7.

What is the UV index reading in May in Harbour Heights?

In Harbour Heights, Florida, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to 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
Harbour Heights, FL

Average temperature in May - Harbour Heights, FL
  • Average high temperature in May: 87.3°F

The warmest months (with the highest average high temperature) are July and August (90.1°F).
The month with the lowest average high temperature is January (70.9°F).

  • Average low temperature in May: 71.2°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 (54.3°F).

Average pressure in May
Harbour Heights, FL

Average pressure in May - Harbour Heights, FL
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

Average wind speed in May
Harbour Heights, FL

Average wind speed in May - Harbour Heights, FL
  • Average wind speed in May: 6.8mph

The windiest months (with the highest average wind speed) are January and March (7.5mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

Average humidity in May
Harbour Heights, FL

Average humidity in May - Harbour Heights, FL
  • Average humidity in May: 71%

The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is March (70%).

Average rainfall in May
Harbour Heights, FL

Average rainfall in May - Harbour Heights, FL
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is August (5.39").
The driest month (with the least rainfall) is February (0.79").

Average rainfall days in May
Harbour Heights, FL

Average rainfall days in May - Harbour Heights, FL
  • Average rainfall days in May: 15.9 days

The month with the highest number of rainy days is August (25.6 days).
The months with the least rainy days are January and February (8.1 days).

Average daylight in May /
Average sunshine in May
Harbour Heights, FL

Average daylight in May / Average sunshine in May - Harbour Heights, FL
  • Average daylight in May: 13h and 3min

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 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

Average sunshine days in May
Harbour Heights, FL

Average sunshine days in May - Harbour Heights, FL
  • Average sunshine days in May: 12.4 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is August (3.8 days).

Average UV index in May
Harbour Heights, FL

Average UV index in May - Harbour Heights, 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 months with the lowest UV index are January, February, November and December (UV index 5).

Average cloud cover in May
Harbour Heights, FL

Average cloud cover in May - Harbour Heights, FL
  • Average cloud cover in May: 26

The month with the most cloud cover is December (Cloud cover 32).
The month with the least cloud cover is May (Cloud cover 26).

Average visibility in May
Harbour Heights, FL

Average visibility in May - Harbour Heights, 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).

Harbour Heights, Florida, USA

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