May weather forecast
Belleair Beach, FL

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Weather in May

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

Temperature

As April transitions into May, the average high-temperature rests at a still warm 82°F (27.8°C), maintaining a close resemblance to the previous month. Belleair Beach indicates a consistently low-temperature of 73°F (22.8°C) during the nights of May.

Heat index

During May, the heat index is evaluated at a hot 87.8°F (31°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

In Belleair Beach, 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, the average seawater temperature in May is 78.1°F (25.6°C).
Note: Surface water temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as ideal and highly pleasant for extended enjoyment in all water activities.

Daylight

In May, the average length of the day 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

The month with the most sunshine is May, with an average of 11.3h of sunshine.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In May, a daily UV index of 7 turns into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Heed this! UV intensity is much stronger when reflected off sand and water.
Updated: Jul 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In Belleair Beach, 82°F (27.8°C) is the average high-temperature and 73°F (22.8°C) is the average low-temperature during May. In May, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in May?

The average relative humidity in May 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.

What is the ocean temperature in May?

In Belleair Beach, in May, the average water temperature is 78.1°F (25.6°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

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

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

What time are sunrise and sunset in May?

On the first day of May, 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?

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

How long on average sun shines in May?

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

What is the month with the highest UV index?

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

What is the UV index reading in May?

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