May weather forecast
Stuart, FL

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Weather in May

The last month of the spring, May, is another warm month in Stuart, Florida, with temperature in the range of an average low of 73.6°F (23.1°C) and an average high of 82.2°F (27.9°C).

Temperature

The arrival of May denotes a barely perceptible change in the average high-temperatures to a still warm 82.2°F (27.9°C) from April's 79.5°F (26.4°C). In Stuart, the May nights are characterized by an average low-temperature of 73.6°F (23.1°C), a minor dip from daytime readings.

Heat index

The heat index for May is estimated at a tropical 87.8°F (31°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

In May, the average relative humidity is 75%.

Rainfall

In Stuart, during May, the rain falls for 13.5 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 168.1 rainfall days, and 14.09" (358mm) of precipitation is accumulated.

Ocean temperature

In Stuart, the average seawater temperature in May is 79.7°F (26.5°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

In May, the average length of the day in Stuart is 13h and 30min.
On the first day of May, sunrise is at 6:41 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:11 pm EDT.

Sunshine

The average sunshine in May in Stuart is 10.7h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, an average UV index of 7 transforms into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Boost your sun resistance with garments that are densely woven yet spacious. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The high-temperature during May is 82.2°F (27.9°C) and the low-temperature is 73.6°F (23.1°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in May is estimated at 87.8°F (31°C).

What is the average humidity in May?

The average relative humidity in May is 75%.

How many days does it rain in May?

In May, the rain falls for 13.5 days. Throughout May, 1.65" (42mm) of precipitation is accumulated.

What is the ocean temperature in May?

In Stuart, the average seawater temperature in May is 79.7°F (26.5°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 Stuart, the average day length in May is 13h and 30min.

When are sunrise and sunset in May in Stuart?

On the first day of May, sunrise is at 6:41 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:11 pm EDT.

How many hours of sunshine does Stuart have in May?

The average sunshine duration in May is 10.7h.

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 reading in May?

In May, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in May
Stuart, FL

Average temperature in May - Stuart, FL
  • Average high temperature in May: 82.2°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 (71.4°F).

  • Average low temperature in May: 73.6°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (61.2°F).

Average pressure in May
Stuart, FL

Average pressure in May - Stuart, FL
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

Average wind speed in May
Stuart, FL

Average wind speed in May - Stuart, FL
  • Average wind speed in May: 9.1mph

The windiest months (with the highest average wind speed) are January, March and November (10.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in May
Stuart, FL

Average humidity in May - Stuart, FL
  • Average humidity in May: 75%

The months with the highest relative humidity are June and August (78%).
The month with the lowest relative humidity is March (70%).

Average rainfall in May
Stuart, FL

Average rainfall in May - Stuart, FL
  • Average rainfall in May: 1.65"

The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days in May
Stuart, FL

Average rainfall days in May - Stuart, FL
  • Average rainfall days in May: 13.5 days

The month with the highest number of rainy days is August (23.1 days).
The month with the least rainy days is February (7.7 days).

Average sea temperature in May
Stuart, FL

Average sea temperature in May - Stuart, FL
  • Average sea temperature in May: 79.6°F

The best month for swimming (with the highest average sea temperature) is August (85.1°F).
The coldest month (with the lowest average sea temperature) is February (73.3°F).

Average daylight in May /
Average sunshine in May
Stuart, FL

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

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in May: 10h and 4min

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

Average sunshine days in May
Stuart, FL

Average sunshine days in May - Stuart, FL
  • Average sunshine days in May: 12.4 days

The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is August (3.4 days).

Average UV index in May
Stuart, FL

Average UV index in May - Stuart, 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 months with the lowest UV index are January and December (UV index 5).

Average cloud cover in May
Stuart, FL

Average cloud cover in May - Stuart, FL
  • Average cloud cover in May: 26

The months with the most cloud cover are January, November and December (Cloud cover 34).
The months with the least cloud cover are May and July (Cloud cover 26).

Average visibility in May
Stuart, FL

Average visibility in May - Stuart, 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).

Stuart, Florida, USA

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