May weather forecast
Bluffton, FL

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Weather in May

The last month of the spring, May, is a tropical month in Bluffton, Florida, with an average temperature fluctuating between 67.3°F (19.6°C) and 86°F (30°C).

Temperature

May's advent denotes a minor fluctuation in the average high-temperature to a tropical 86°F (30°C) from April's 81.9°F (27.7°C). Nighttime temperatures in Bluffton hover around an average low of 67.3°F (19.6°C) in May.

Heat index

The heat index value during May is evaluated at a fiery hot 96.8°F (36°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

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

Rainfall

In May, the rain falls for 14.6 days. Throughout May, 2.99" (76mm) of precipitation is accumulated. In Bluffton, during the entire year, the rain falls for 191.3 days and collects up to 34.45" (875mm) of precipitation.

Snowfall

In Bluffton, snow does not fall in February through December.

Daylight

The average length of the day in May in Bluffton is 13h and 37min.
On the first day of May, sunrise is at 6:43 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:20 pm EDT.

Sunshine

In May, the average sunshine is 10.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In May, the maximum UV index of 7 suggests this advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

How hot does it get in Bluffton in May?

The high-temperature, in May, in Bluffton, is 86°F (30°C), while the low-temperature averages to 67.3°F (19.6°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in May is evaluated at 96.8°F (36°C).

What is the average humidity in May in Bluffton?

In May, the average relative humidity is 73%.

How many days does it rain in May in Bluffton?

In Bluffton, Florida, during May, the rain falls for 14.6 days and regularly aggregates up to 2.99" (76mm) of precipitation.

When it does not snow in Bluffton?

February through December are months without snowfall in Bluffton.

What is the average length of the day in May in Bluffton?

In Bluffton, Florida, the average day length in May is 13h and 37min.

When are sunrise and sunset in May in Bluffton?

On the first day of May, sunrise is at 6:43 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:20 pm EDT.

How long on average sun shines in May in Bluffton?

In Bluffton, the average sunshine duration in May is 10.5h.

What are the months with the highest UV index in Bluffton?

The months with the highest UV index in Bluffton are May through August, with an average maximum UV index of 7.

How high is the UV index in May in Bluffton?

The average daily maximum UV index in May in Bluffton, Florida, is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Bluffton, FL

Average temperature in May - Bluffton, FL
  • Average high temperature in May: 86°F

The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (67.1°F).

  • Average low temperature in May: 67.3°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).

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Average pressure in May
Bluffton, FL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

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Average wind speed in May
Bluffton, FL

Average wind speed in May - Bluffton, FL
  • Average wind speed in May: 5.3mph

The windiest months (with the highest average wind speed) are March and April (5.8mph).
The calmest month (with the lowest average wind speed) is July (4.2mph).

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Average humidity in May
Bluffton, FL

Average humidity in May - Bluffton, FL
  • Average humidity in May: 73%

The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).

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Average rainfall in May
Bluffton, FL

Average rainfall in May - Bluffton, FL
  • Average rainfall in May: 2.99"

The wettest month (with the highest rainfall) is July (5.28").
The driest months (with the least rainfall) are March and November (1.26").

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Average rainfall days in May
Bluffton, FL

Average rainfall days in May - Bluffton, FL
  • Average rainfall days in May: 14.6 days

The month with the highest number of rainy days is August (26.3 days).
The month with the least rainy days is November (9.6 days).

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Average snowfall days in May
Bluffton, FL

Average snowfall days in May - Bluffton, FL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in May / Average sunshine in May - Bluffton, FL
  • Average daylight in May: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in May: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in May
Bluffton, FL

Average sunshine days in May - Bluffton, FL
  • Average sunshine days in May: 14.3 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is August (3 days).

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Average UV index in May
Bluffton, FL

Average UV index in May - Bluffton, FL
  • Average UV index in May: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in May
Bluffton, FL

Average cloud cover in May - Bluffton, FL
  • Average cloud cover in May: 29

The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 29).

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Average visibility in May
Bluffton, FL

Average visibility in May - Bluffton, 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).

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Bluffton, Florida, USA

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