May weather forecast
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

Weather in May

The last month of the spring, May, is another warm month in Deerfield Beach, Florida, with an 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 essentially the same as in April - a still warm 81.5°F (27.5°C). In Deerfield Beach, Florida, the average low-temperature is 75.9°F (24.4°C).

Heat index

In May, the average heat index is computed to be a tropical 86.2°F (30.1°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'apparent 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 activity, metabolic differences, pregnancy, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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 is 73%.

Rainfall

In Deerfield Beach, during 20.9 rainfall days, 5.71" (145mm) of precipitation is typically accumulated. 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 Deerfield Beach, the average seawater temperature in May 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, Florida, the average length of the day in May is 13h and 27min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:52 pm. On the last day of May, in Deerfield Beach, sunrise is at 6:27 am and sunset at 8:08 pm EDT.

Sunshine

The average sunshine in May in Deerfield Beach, Florida, is 10.6h.

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 hazard from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
[Resources]

FAQ

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). In May, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 86.2°F (30.1°C).

What is the average humidity in May in Deerfield Beach?

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

How many days does it rain in May in Deerfield Beach?

In Deerfield Beach, in May, during 20.9 rainfall days, 5.71" (145mm) of precipitation is typically accumulated.

What is the water temperature in May in Deerfield Beach?

In Deerfield Beach, 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.

What is the average length of the day in May in Deerfield Beach?

In May, the average day length in Deerfield Beach, Florida, is 13h and 27min.

When are sunrise and sunset in May in Deerfield Beach?

On the first day of May in Deerfield Beach, Florida, sunrise is at 6:42 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:08 pm EDT.

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

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

When is the highest UV index in Deerfield Beach?

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

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 exposure to Sun's UV rays.

Average temperature in May
Deerfield Beach, FL

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).

[Resources]

Average pressure in May
Deerfield Beach, FL

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

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

[Resources]

Average wind speed in May
Deerfield Beach, FL

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).

[Resources]

Average humidity in May
Deerfield Beach, FL

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

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

[Resources]

Average rainfall in May
Deerfield Beach, FL

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").

[Resources]

Average rainfall days in May
Deerfield Beach, FL

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).

[Resources]

Average sea temperature in May
Deerfield Beach, FL

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).

[Resources]

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

Average daylight in May / Average sunshine in May - Deerfield Beach, FL
  • Average daylight in May: 13h and 27min

The month with the longest days is June (Average daylight: 13h and 46min).
The month with the shortest days is December (Average daylight: 10h and 31min).

  • Average sunshine in May: 10h and 36min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 12min).

[Resources]

Average sunshine days in May
Deerfield Beach, FL

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).
The months with the least sunshine days are July and August (1.7 days).

[Resources]

Average UV index in May
Deerfield Beach, FL

Average UV index in May - Deerfield 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 5).

[Resources]

Average cloud cover in May
Deerfield Beach, FL

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).
The months with the least cloud cover are April and July (Cloud cover 28).

[Resources]

Average visibility in May
Deerfield Beach, FL

Average visibility in May - Deerfield 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location