May weather forecast
Sanford, FL

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Boats docked along the shores of Lake Monroe in Sanford, Florida
Boats docked along the shores of Lake Monroe in Sanford, Florida

Weather in May

May, the last month of the spring in Sanford, is also a moderately hot month, with an average temperature ranging between max 85.5°F (29.7°C) and min 69.1°F (20.6°C).

Temperature

May's onset records an average high-temperature of a still warm 85.5°F (29.7°C), a near match to April's 81.5°F (27.5°C). May brings an average low-temperature of 69.1°F (20.6°C) to Sanford.

Heat index

May's heat index is computed to be a fiery hot 95°F (35°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

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

Rainfall

In May, the rain falls for 16 days. Throughout May, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 187.2 rainfall days, and 30.87" (784mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Sanford, the average length of the day in May is 13h and 36min.
On the first day of the month, sunrise is at 6:43 am and sunset at 8:00 pm. On the last day of May, sunrise is at 6:27 am and sunset at 8:18 pm EDT.

Sunshine

In Sanford, the average sunshine in May is 10.7h.

UV index

May through August, 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 unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 7 in May translates into these instructions:
Ward off overexposure. Defence against solar harm is crucial. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Sanford in May?

The average high-temperature and low-temperature during May are 85.5°F (29.7°C) and 69.1°F (20.6°C) respectively. In May, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 95°F (35°C).

What is the average humidity in May?

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

How much does it rain in May?

In Sanford, during May, the rain falls for 16 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When it does not snow in Sanford?

February through December are months without snowfall.

What is the average length of the day in May?

In Sanford, the average day length in May is 13h and 36min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:43 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 8:18 pm EDT.

How long on average sun shines in May?

The average sunshine duration in May is 10.7h.

What are the months with the highest UV index?

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

What is the UV index reading in May?

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

Average temperature in May
Sanford, FL

Average temperature in May - Sanford, FL
  • Average high temperature in May: 85.5°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (67.8°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 (51.4°F).

Average pressure in May
Sanford, FL

Average pressure in May - Sanford, 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).

Average wind speed in May
Sanford, FL

Average wind speed in May - Sanford, FL
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in May
Sanford, FL

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

The months with the highest relative humidity are August and September (77%).
The month with the lowest relative humidity is March (70%).

Average rainfall in May
Sanford, FL

Average rainfall in May - Sanford, FL
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is August (4.84").
The driest month (with the least rainfall) is March (1.18").

Average rainfall days in May
Sanford, FL

Average rainfall days in May - Sanford, FL
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is August (24.1 days).
The month with the least rainy days is January (10.1 days).

Average snowfall in May
Sanford, FL

Average snowfall in May - Sanford, FL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Sanford, FL

Average snowfall days in May - Sanford, 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).

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

Average daylight in May / Average sunshine in May - Sanford, 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 4min

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

Average sunshine days in May
Sanford, FL

Average sunshine days in May - Sanford, FL
  • Average sunshine days in May: 12.6 days

The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is July (3.8 days).

Average UV index in May
Sanford, FL

Average UV index in May - Sanford, 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).

Average cloud cover in May
Sanford, FL

Average cloud cover in May - Sanford, FL
  • Average cloud cover in May: 27

The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 27).

Average visibility in May
Sanford, FL

Average visibility in May - Sanford, 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).

Sanford, Florida, USA

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