May weather forecast
Melbourne, FL

englishespañol中文
Share
A long pier and sun shed on the Indian River in Melbourne, Florida
A long pier and sun shed on the Indian River in Melbourne, Florida

Weather in May

The last month of the spring, May, is another warm month in Melbourne, Florida, with an average temperature ranging between max 81.9°F (27.7°C) and min 73°F (22.8°C).

Temperature

In May, Melbourne experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 78.4°F (25.8°C) in April to a still moderately hot 81.9°F (27.7°C). Melbourne experiences a subtle drop in temperature during the May nights, recording an average of 73°F (22.8°C).

Heat index

May's average heat index is evaluated at a tropical 87.8°F (31°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. 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 hold particular importance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

In Melbourne, the average relative humidity in May is 75%.

Rainfall

In Melbourne, during May, the rain falls for 14 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Melbourne, during the entire year, the rain falls for 176.1 days and collects up to 22.28" (566mm) of precipitation.

Ocean temperature

In Melbourne, Florida, the average seawater temperature in May is 78.4°F (25.8°C).
Note: For engaging in water activities including swimming and diving, temperatures from 77°F (25°C) to 84.2°F (29°C) are perceived as perfect, providing pleasure for extended durations.

Daylight

In May, the average length of the day is 13h and 33min.
On the first day of May in Melbourne, Florida, sunrise is at 6:41 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:14 pm EDT.

Sunshine

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

UV index

The months with the highest UV index in Melbourne are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 7 during May translates into the following guidance:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be mindful! Sand and water reflections can up the Sun's UV exposure.
[Resources]

Frequently asked questions

What is the average May temperature in Melbourne?

May temperatures in Melbourne, Florida, vary between a high-temperature of 81.9°F (27.7°C) and a low-temperature of 73°F (22.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in May is evaluated at 87.8°F (31°C).

What is the average humidity in May in Melbourne?

The average relative humidity in May in Melbourne, Florida, is 75%.

How many days does it rain in May in Melbourne?

In Melbourne, in May, it is raining for 14 days, with typically 2.17" (55mm) of accumulated precipitation.

How warm is the water in May in Melbourne?

In Melbourne, in May, the average water temperature is 78.4°F (25.8°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.

How many hours of daylight does Melbourne have in May?

In Melbourne, Florida, the average day length in May is 13h and 33min.

When is the sunrise / sunset in May in Melbourne?

In May, on the first day of the month, sunrise is at 6:41 am and sunset at 7:57 pm. On the last day of the month, in Melbourne, Florida, sunrise is at 6:26 am and sunset at 8:14 pm EDT.

How long on average sun shines in May in Melbourne?

In Melbourne, Florida, the average sunshine duration in May is 10.7h.

When is the highest UV index in Melbourne?

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

What is the UV index reading in May in Melbourne?

In Melbourne, the average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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
Melbourne, FL

Average temperature in May - Melbourne, FL
  • Average high temperature in May: 81.9°F

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is January (69.3°F).

  • Average low temperature in May: 73°F

The month with the highest average low temperature is August (78.8°F).
The coldest month (with the lowest average low temperature) is January (58.6°F).

[Resources]

Average pressure in May
Melbourne, FL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

[Resources]

Average wind speed in May
Melbourne, FL

Average wind speed in May - Melbourne, FL
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is November (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

[Resources]

Average humidity in May
Melbourne, FL

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

The month with the highest relative humidity is August (80%).
The month with the lowest relative humidity is March (72%).

[Resources]

Average rainfall in May
Melbourne, FL

Average rainfall in May - Melbourne, FL
  • Average rainfall in May: 2.17"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is February (0.59").

[Resources]

Average rainfall days in May
Melbourne, FL

Average rainfall days in May - Melbourne, FL
  • Average rainfall days in May: 14 days

The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is February (8.2 days).

[Resources]

Average sea temperature in May
Melbourne, FL

Average sea temperature in May - Melbourne, FL
  • Average sea temperature in May: 78.4°F

The best month for swimming (with the highest average sea temperature) is August (84.7°F).
The coldest month (with the lowest average sea temperature) is January (71.4°F).

[Resources]

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

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

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).

[Resources]

Average sunshine days in May
Melbourne, FL

Average sunshine days in May - Melbourne, FL
  • Average sunshine days in May: 13.3 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is August (4.7 days).

[Resources]

Average UV index in May
Melbourne, FL

Average UV index in May - Melbourne, 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, February and December (UV index 5).

[Resources]

Average cloud cover in May
Melbourne, FL

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

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

[Resources]

Average visibility in May
Melbourne, FL

Average visibility in May - Melbourne, 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).

[Resources]

Melbourne, Florida, USA

Weather forecast for your location

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