May weather forecast
Belleair Beach, FL

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Weather in May

May, the last month of the spring in Belleair Beach, is another warm month, with an average temperature fluctuating between 82°F (27.8°C) and 73°F (22.8°C).

Temperature

May welcomes an average high-temperature of a still moderately hot 82°F (27.8°C), not much different from the preceding month. During May, nights cool slightly to an average low of 73°F (22.8°C).

Heat index

For May, the heat index is calculated to be a hot 87.8°F (31°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

The average relative humidity in May is 73%.

Rainfall

In Belleair Beach, in May, it is raining for 11.8 days, with typically 0.91" (23mm) of accumulated precipitation. Throughout the year, there are 149.9 rainfall days, and 16.18" (411mm) of precipitation is accumulated.

Ocean temperature

In Belleair Beach, in May, the average water temperature is 78.1°F (25.6°C).
Note: For engaging in any water activities, temperatures from 77°F (25°C) to 84.2°F (29°C) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

The average length of the day in May is 13h and 32min.
On the first day of the month, sunrise is at 6:50 am and sunset at 8:05 pm. On the last day of May, sunrise is at 6:35 am and sunset at 8:23 pm EDT.

Sunshine

With an average of 11.3h of sunshine, May has the most sunshine of the year.

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 vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 7 during May, leads to the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Boost your sun resistance with garments that are densely woven yet spacious. Heed this! UV intensity is much stronger when reflected off sand and water.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The average high-temperature, in May, in Belleair Beach, is 82°F (27.8°C), while the average low-temperature is 73°F (22.8°C). In May, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in May?

In May, the average relative humidity is 73%.

How many days does it rain in May?

In Belleair Beach, in May, it is raining for 11.8 days, with typically 0.91" (23mm) of accumulated precipitation.

How warm is the water in May?

In Belleair Beach, the average seawater temperature in May is 78.1°F (25.6°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in May?

In May, the average day length is 13h and 32min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:50 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:23 pm EDT.

What month has the most sunshine?

May has the most sunshine of the year in Belleair Beach, with an average of 11.3h of sunshine.

How long on average sun shines in May in Belleair Beach?

In Belleair Beach, the average sunshine duration in May is 11.3h.

When is the highest UV index?

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

What is the UV index intensity in May?

In May, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high hazard to health 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
Belleair Beach, FL

Average temperature in May - Belleair Beach, FL
  • Average high temperature in May: 82°F

The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is January (65.8°F).

  • Average low temperature in May: 73°F

The month with the highest average low temperature is August (80.6°F).
The coldest month (with the lowest average low temperature) is January (55.9°F).

Average pressure in May
Belleair Beach, FL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

Average wind speed in May
Belleair Beach, FL

Average wind speed in May - Belleair Beach, FL
  • Average wind speed in May: 8.6mph

The windiest months (with the highest average wind speed) are January and March (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in May
Belleair Beach, FL

Average humidity in May - Belleair Beach, FL
  • Average humidity in May: 73%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Belleair Beach, FL

Average rainfall in May - Belleair Beach, FL
  • Average rainfall in May: 0.91"

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is March (0.39").

Average rainfall days in May
Belleair Beach, FL

Average rainfall days in May - Belleair Beach, FL
  • Average rainfall days in May: 11.8 days

The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is February (6.7 days).

Average sea temperature in May
Belleair Beach, FL

Average sea temperature in May - Belleair Beach, FL
  • Average sea temperature in May: 78.2°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64°F).

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

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

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in May: 11h and 2min

The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in May
Belleair Beach, FL

Average sunshine days in May - Belleair Beach, FL
  • Average sunshine days in May: 15.8 days

The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is August (5 days).

Average UV index in May
Belleair Beach, FL

Average UV index in May - Belleair 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 4).

Average cloud cover in May
Belleair Beach, FL

Average cloud cover in May - Belleair Beach, FL
  • Average cloud cover in May: 20

The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).

Average visibility in May
Belleair Beach, FL

Average visibility in May - Belleair 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).

Belleair Beach, Florida, USA

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