May weather forecastBelleair Bluffs, FL
May
Weather in May
The last month of the spring, May, is also a moderately hot month in Belleair Bluffs, Florida, with an average temperature varying between 82°F (27.8°C) and 73°F (22.8°C).Temperature
The arrival of May sees an average high-temperature of a still warm 82°F (27.8°C), hardly diverging from April's 77.4°F (25.2°C). Belleair Bluffs, during May nights, witnesses an average temperature marginally cooler than its daytime highs, at an agreeable 73°F (22.8°C).Heat index
Throughout May, the heat index is appraised at a hot 87.8°F (31°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In Belleair Bluffs, the average relative humidity in May is 73%.Rainfall
In Belleair Bluffs, during May, the rain falls for 11.8 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Belleair Bluffs, during the entire year, the rain falls for 149.9 days and collects up to 16.18" (411mm) of precipitation.Ocean temperature
In May, the average ocean temperature is 78.1°F (25.6°C).Note: For any water activity, temperatures between 77°F (25°C) and 84.2°F (29°C) are deemed excellent and extremely satisfying for enduring periods.
Daylight
In Belleair Bluffs, the average length of the day in May is 13h and 32min.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 8:22 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 of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 7 during May translates into the following guidance:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Alert! Sand and water increase UV exposure due to their reflective properties.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Belleair Bluffs, 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 Bluffs, 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 Bluffs, 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 Bluffs, 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 Bluffs, 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 Bluffs, 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 Bluffs, 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 Bluffs, FL
- Average daylight in May: 13h and 30min
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 18min
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 Bluffs, 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 Bluffs, 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 Bluffs, 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 Bluffs, 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).





