May weather forecast
Rock Harbor, FL

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Weather in May

The last month of the spring, May, is also a moderately hot month in Rock Harbor, Florida, with an average temperature varying between 80.6°F (27°C) and 78.1°F (25.6°C).

Temperature

During May, Rock Harbor observes a subtle ascent to a still moderately hot 80.6°F (27°C) from April's 77.5°F (25.3°C) in the average high-temperature. Rock Harbor records a negligible downturn from daytime temperatures, averaging a low of 78.1°F (25.6°C) in the month of May.

Heat index

The heat index value for May is computed to be 84.2°F (29°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

In Rock Harbor, the average relative humidity in May is 75%.

Rainfall

In Rock Harbor, during May, the rain falls for 15.3 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Rock Harbor, during the entire year, the rain falls for 190.1 days and collects up to 27.05" (687mm) of precipitation.

Daylight

In May, the average length of the day is 13h and 22min.
On the first day of May, sunrise is at 6:45 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 8:07 pm EDT.

Sunshine

In May, the average sunshine is 10.6h.

UV index

April through October, 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 vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 7 suggests these recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The average high-temperature and low-temperature during May are 80.6°F (27°C) and 78.1°F (25.6°C) respectively. In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is computed to be 84.2°F (29°C).

What is the average humidity in May?

In May, the average relative humidity is 75%.

How much does it rain in May?

In May, the rain falls for 15.3 days. Throughout May, 2.64" (67mm) of precipitation is accumulated.

What is the average length of the day in May?

The average day length in May is 13h and 22min.

When is the sunrise / sunset in May in Rock Harbor?

In May, on the first day of the month, sunrise is at 6:45 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 8:07 pm EDT.

How many hours of sunshine does Rock Harbor have in May?

In Rock Harbor, the average sunshine duration in May is 10.6h.

What is the month with the highest UV index?

The months with the highest UV index are April through October, with an average maximum UV index of 7.

What is the UV index intensity in May?

In Rock Harbor, the average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes 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
Rock Harbor, FL

Average temperature in May - Rock Harbor, FL
  • Average high temperature in May: 80.6°F

The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.7°F).

  • Average low temperature in May: 78.1°F

The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (66.9°F).

Average pressure in May
Rock Harbor, FL

Average pressure in May - Rock Harbor, FL
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).

Average wind speed in May
Rock Harbor, FL

Average wind speed in May - Rock Harbor, FL
  • Average wind speed in May: 11.6mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

Average humidity in May
Rock Harbor, FL

Average humidity in May - Rock Harbor, FL
  • Average humidity in May: 75%

The months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).

Average rainfall in May
Rock Harbor, FL

Average rainfall in May - Rock Harbor, 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 (0.59").

Average rainfall days in May
Rock Harbor, FL

Average rainfall days in May - Rock Harbor, FL
  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).

Average daylight in May /
Average sunshine in May
Rock Harbor, FL

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

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • 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: 6h and 24min).

Average sunshine days in May
Rock Harbor, FL

Average sunshine days in May - Rock Harbor, FL
  • Average sunshine days in May: 13 days

The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).

Average UV index in May
Rock Harbor, FL

Average UV index in May - Rock Harbor, FL
  • Average UV index in May: 7

The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).

Average cloud cover in May
Rock Harbor, FL

Average cloud cover in May - Rock Harbor, FL
  • Average cloud cover in May: 29

The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).

Average visibility in May
Rock Harbor, FL

Average visibility in May - Rock Harbor, 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).

Rock Harbor, Florida, USA

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