May weather forecast
Fernandina Beach, FL

Share
The glorious Fernandina Beach in Florida found on the scenic Amelia Island
The glorious Fernandina Beach in Florida found on the scenic Amelia Island

Weather in May

May, the last month of the spring in Fernandina Beach, is another warm month, with temperature in the range of an average low of 69.4°F (20.8°C) and an average high of 82.8°F (28.2°C).

Temperature

May introduces a minor temperature shift, with average high-temperatures adjusting from April's 76.8°F (24.9°C) to a still warm 82.8°F (28.2°C). Throughout the month of May, Fernandina Beach observes an average nighttime temperature of 69.4°F (20.8°C).

Heat index

The heat index for May is evaluated at a tropical 87.8°F (31°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In Fernandina Beach, the average relative humidity in May is 72%.

Rainfall

In Fernandina Beach, during May, the rain falls for 14.3 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Fernandina Beach, Florida, during the entire year, the rain falls for 185.3 days and collects up to 35.87" (911mm) of precipitation.

Snowfall

February through December are months without snowfall in Fernandina Beach.

Ocean temperature

In Fernandina Beach, in May, the average water temperature is 74.1°F (23.4°C).
Note: Taking into account a person's sensitivity to the cold, given sunshine, wind, and air temperature, swimming in 74.1°F (23.4°C) might be pleasant. (FYI: The water temperature set for the Olympic swimming event is between 77°F (25°C) and 82.4°F (28°C).)

Daylight

The average length of the day in May is 13h and 43min.
On the first day of May, sunrise is at 6:41 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 8:23 pm EDT.

Sunshine

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

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Fernandina Beach. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 7 during May translates into the following guidance:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heed this! UV intensity is much stronger when reflected off sand and water.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Fernandina Beach in May?

Fernandina Beach in May has an average high-temperature of 82.8°F (28.2°C) and an average low-temperature of 69.4°F (20.8°C). In May, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in May in Fernandina Beach?

In May, the average relative humidity is 72%.

How much does it rain in Fernandina Beach in May?

In Fernandina Beach, during May, the rain falls for 14.3 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow in Fernandina Beach?

In Fernandina Beach, snow does not fall in February through December.

What is the ocean temperature in May in Fernandina Beach?

In Fernandina Beach, the average seawater temperature in May is 74.1°F (23.4°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 74.1°F (23.4°C) water.

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

In May, the average day length in Fernandina Beach is 13h and 43min.

What time are sunrise and sunset in May in Fernandina Beach?

In May, on the first day of the month, sunrise is at 6:41 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 8:23 pm EDT.

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

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

When is the highest UV index in Fernandina Beach?

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

What is the UV index reading in May in Fernandina Beach?

In May, the average daily maximum UV index in Fernandina Beach is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
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
Fernandina Beach, FL

Average temperature in May - Fernandina Beach, FL
  • Average high temperature in May: 82.8°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (62.1°F).

  • Average low temperature in May: 69.4°F

The month with the highest average low temperature is August (77.7°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).

Average pressure in May
Fernandina Beach, FL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).

Average wind speed in May
Fernandina Beach, FL

Average wind speed in May - Fernandina Beach, FL
  • Average wind speed in May: 7.8mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in May
Fernandina Beach, FL

Average humidity in May - Fernandina Beach, FL
  • Average humidity in May: 72%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (71%).

Average rainfall in May
Fernandina Beach, FL

Average rainfall in May - Fernandina Beach, FL
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is August (5.87").
The driest month (with the least rainfall) is January (1.3").

Average rainfall days in May
Fernandina Beach, FL

Average rainfall days in May - Fernandina Beach, FL
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is August (25.6 days).
The month with the least rainy days is January (9.6 days).

Average snowfall days in May
Fernandina Beach, FL

Average snowfall days in May - Fernandina Beach, FL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average sea temperature in May
Fernandina Beach, FL

Average sea temperature in May - Fernandina Beach, FL
  • Average sea temperature in May: 74.2°F

The best month for swimming (with the highest average sea temperature) is August (83°F).
The coldest month (with the lowest average sea temperature) is February (58.3°F).

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

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

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in May: 10h and 4min

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: 5h and 48min).

Average sunshine days in May
Fernandina Beach, FL

Average sunshine days in May - Fernandina Beach, FL
  • Average sunshine days in May: 14.8 days

The month with the most sunshine days is January (19.2 days).
The month with the least sunshine days is August (3.8 days).

Average UV index in May
Fernandina Beach, FL

Average UV index in May - Fernandina Beach, FL
  • Average UV index in May: 7

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

Average cloud cover in May
Fernandina Beach, FL

Average cloud cover in May - Fernandina Beach, FL
  • Average cloud cover in May: 27

The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 27).

Average visibility in May
Fernandina Beach, FL

Average visibility in May - Fernandina 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).

Fernandina Beach, Florida, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location