May weather forecast and climate
Deerfield Beach, FL

The calm sea and white sand of the famous Deerfield Beach in Florida
The calm sea and white sand of the famous Deerfield Beach in Florida
The last month of the spring, May, is another warm month in Deerfield Beach, Florida, with average temperature fluctuating between 81.5°F (27.5°C) and 75.9°F (24.4°C).

Temperature

In May, the average high-temperature is almost the same as in April - a still warm 81.5°F (27.5°C). In May, in Deerfield Beach, the average low-temperature is 75.9°F (24.4°C).

Heat index

The average heat index is estimated at a hot 86.2°F (30.1°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like metabolic differences, pregnancy, differences in body mass, height, and shape, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In May, the average relative humidity in Deerfield Beach is 73%.

Rainfall

In Deerfield Beach, in May, it is raining for 20.9 days, with typically 5.71" (145mm) of accumulated precipitation. In Deerfield Beach, during the entire year, the rain falls for 243.5 days and collects up to 53.31" (1354mm) of precipitation.

Ocean temperature

In May, the average ocean temperature is 80.8°F (27.1°C).
Note: 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.

Daylight

In Deerfield Beach, the average length of the day in May is 13.5h.

Sunshine

In May, the average sunshine in Deerfield Beach is 10.6h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Deerfield Beach. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in May in Deerfield Beach?

In May, in Deerfield Beach, the average high-temperature is 81.5°F (27.5°C), and the average low-temperature is 75.9°F (24.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that combines air temperature and relative humidity, in May is calculated to 86.2°F (30.1°C).

What is the average humidity in May in Deerfield Beach?

In Deerfield Beach, Florida, the average relative humidity in May is 73%.

How much does it rain in Deerfield Beach in May?

In Deerfield Beach, in May, it is raining for 20.9 days, with typically 5.71" (145mm) of accumulated precipitation.

What is the ocean temperature in May in Deerfield Beach?

In Deerfield Beach, Florida, the average seawater temperature in May is 80.8°F (27.1°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.

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

In May, the average length of the day is 13.5h.

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

The average sunshine in May is 10.6h.

What is the month with the highest UV index in Deerfield Beach?

Months with the highest UV index in Deerfield Beach are May through September, with an average maximum UV index of 7.

How high is the UV index in May in Deerfield Beach?

In Deerfield Beach, Florida, the average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in May - Deerfield Beach, FL
  • Average high temperature in May: 81.5°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (72.5°F).

  • Average low temperature in May: 75.9°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64.2°F).

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

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is September (29.95").

Average wind speed in May - Deerfield Beach, FL
  • Average wind speed in May: 10.3mph

The windiest month (with the highest average wind speed) is March (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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

Months with the highest relative humidity are June and December (75%).
The month with the lowest relative humidity is March (70%).

Average rainfall in May - Deerfield Beach, FL
  • Average rainfall in May: 5.71"

The wettest month (with the highest rainfall) is August (8.35").
The driest month (with the least rainfall) is January (1.38").

Average rainfall days in May - Deerfield Beach, FL
  • Average rainfall days in May: 20.9 days

The month with the highest number of rainy days is August (28 days).
The month with the least rainy days is February (13 days).

Average sea temperature in May - Deerfield Beach, FL
  • Average sea temperature in May: 80.8°F

The best month for swimming (with the highest average sea temperature) is August (86.3°F).
The coldest months (with the lowest average sea temperature) are January and February (74.2°F).

Average daylight in May / Average sunshine in May - Deerfield Beach, FL
  • Average daylight in May: 13.5h

The month with the longest days is June (Average daylight: 13.8h).
The month with the shortest days is December (Average daylight: 10.5h).

  • Average sunshine in May: 10.6h

The month with the most sunshine is July (Average sunshine: 10.9h).
Months with the least sunshine are January and December (Average sunshine: 6.2).

Average sunshine days in May - Deerfield Beach, FL
  • Average sunshine days in May: 7.8 days

The month with the most sunshine days is March (12.1 days).
Months with the least sunshine days are July and August (1.7 days).

Average UV index in May - Deerfield Beach, FL
  • Average UV index in May: 7

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 5).

Average cloud cover in May - Deerfield Beach, FL
  • Average cloud cover in May: 29

The month with the most cloud cover is October (Cloud cover 36).
Months with the least cloud cover are April and July (Cloud cover 28).

Average visibility in May - Deerfield Beach, FL
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).