May weather forecast
Darby, FL

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Weather in May

The last month of the spring, May, is a tropical month in Darby, Florida, with an average temperature ranging between min 69.1°F (20.6°C) and max 86.5°F (30.3°C).

Temperature

The average high-temperature for May is a tropical 86.5°F (30.3°C), closely aligning with the temperature of the preceding month. May brings an average low-temperature of 69.1°F (20.6°C) to Darby.

Heat index

The heat index in May is evaluated at a torrid 96.8°F (36°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Heat index determinations are made taking into account the shade and light air movements. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The months with the lowest humidity are January, March through May, with an average relative humidity of 72%.

Rainfall

In Darby, during May, the rain falls for 13.5 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 155.3 rainfall days, and 18.62" (473mm) of precipitation is accumulated.

Daylight

In May, the average length of the day is 13h and 34min.
On the first day of May in Darby, sunrise is at 6:48 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:22 pm EDT.

Sunshine

The month with the most sunshine in Darby is May, with an average of 10.9h of sunshine.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 7 in May translates into this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

How hot is May in Darby?

The high-temperature during May is 86.5°F (30.3°C) and the low-temperature is 69.1°F (20.6°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in May is evaluated at 96.8°F (36°C).

What are the least humid months in Darby?

The months with the lowest humidity in Darby, Florida, are January, March through May, with an average relative humidity of 72%.

What is the average humidity in May in Darby?

The average relative humidity in May in Darby, Florida, is 72%.

How many days does it rain in May in Darby?

In Darby, Florida, during May, the rain falls for 13.5 days and regularly aggregates up to 1.57" (40mm) of precipitation.

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

In May, the average day length in Darby is 13h and 34min.

When is the sunrise / sunset in May in Darby?

On the first day of May in Darby, Florida, sunrise is at 6:48 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:22 pm EDT.

What month has the most sunshine in Darby?

With an average of 10.9h of sunshine, May has the most sunshine of the year in Darby.

How many hours of sunshine does Darby have in May?

In May, the average sunshine duration in Darby, Florida, is 10.9h.

When is the highest UV index in Darby?

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

What is the UV index intensity in May in Darby?

In May, the average daily maximum UV index in Darby is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Darby, FL

Average temperature in May - Darby, FL
  • Average high temperature in May: 86.5°F

The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (67.6°F).

  • Average low temperature in May: 69.1°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (50.9°F).

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Average pressure in May
Darby, FL

Average pressure in May - Darby, 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).

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Average wind speed in May
Darby, FL

Average wind speed in May - Darby, FL
  • Average wind speed in May: 6.2mph

The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

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Average humidity in May
Darby, FL

Average humidity in May - Darby, FL
  • Average humidity in May: 72%

The months with the highest relative humidity are July, August and September (77%).
The months with the lowest relative humidity are January, March, April and May (72%).

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Average rainfall in May
Darby, FL

Average rainfall in May - Darby, FL
  • Average rainfall in May: 1.57"

The wettest month (with the highest rainfall) is July (3.62").
The driest months (with the least rainfall) are January and March (0.55").

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Average rainfall days in May
Darby, FL

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

The month with the highest number of rainy days is August (23.2 days).
The month with the least rainy days is January (6.9 days).

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

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

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: 10h and 5min

The month with the most sunshine is May (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

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Average sunshine days in May
Darby, FL

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

The month with the most sunshine days is January (22.7 days).
The month with the least sunshine days is July (5 days).

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Average UV index in May
Darby, FL

Average UV index in May - Darby, 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).

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Average cloud cover in May
Darby, FL

Average cloud cover in May - Darby, FL
  • Average cloud cover in May: 25

The months with the most cloud cover are January, February and December (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 25).

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Average visibility in May
Darby, FL

Average visibility in May - Darby, 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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Darby, Florida, USA

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