May weather forecast
Riviera Beach, MD

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Weather in May

May, the last month of the spring in Riviera Beach, is an agreeable month, with an average temperature varying between 72.1°F (22.3°C) and 57.2°F (14°C).

Temperature

May brings a temperature change, with average high-temperatures moving from April's refreshing 62.8°F (17.1°C) to a pleasant 72.1°F (22.3°C). Riviera Beach anticipates an average minimum temperature of 57.2°F (14°C) in the month of May.

Humidity

With an average relative humidity of 78%, May is the most humid month.

Rainfall

In May, the rain falls for 17.5 days. Throughout May, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 155.7 rainfall days, and 31.22" (793mm) of precipitation is accumulated.

Snowfall

In Riviera Beach, snow does not fall in May through October.

Ocean temperature

In Riviera Beach, in May, the average water temperature is 55.9°F (13.3°C).
Note: In 55.9°F (13.3°C), cold shock and rapid breathing can occur when swimming at temperatures below 50°F (10°C).

Daylight

In Riviera Beach, the average length of the day in May is 14h and 20min.
On the first day of the month, sunrise is at 6:06 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:41 am and sunset at 8:25 pm EDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 6 during May morphs into the following directions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Riviera Beach in May?

The high-temperature, in May, in Riviera Beach, records 72.1°F (22.3°C), while the low-temperature is 57.2°F (14°C).

What is the most humid month in Riviera Beach?

With an average relative humidity of 78%, May is the most humid month.

What is the average humidity in May?

In May, the average relative humidity is 78%.

How much does it rain in May?

In Riviera Beach, in May, during 17.5 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

Does it snow in Riviera Beach in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the water temperature in May in Riviera Beach?

In May, the average ocean temperature is 55.9°F (13.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Riviera Beach have in May?

In Riviera Beach, the average day length in May is 14h and 20min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:25 pm EDT.

How long on average sun shines in May?

In Riviera Beach, Maryland, the average sunshine duration in May is 9.1h.

When is the highest UV index in Riviera Beach?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in May?

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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
Riviera Beach, MD

Average temperature in May - Riviera Beach, MD
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in May: 57.2°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in May
Riviera Beach, MD

Average pressure in May - Riviera Beach, MD
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Riviera Beach, MD

Average wind speed in May - Riviera Beach, MD
  • Average wind speed in May: 7.5mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in May
Riviera Beach, MD

Average humidity in May - Riviera Beach, MD
  • Average humidity in May: 78%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in May
Riviera Beach, MD

Average rainfall in May - Riviera Beach, MD
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in May
Riviera Beach, MD

Average rainfall days in May - Riviera Beach, MD
  • Average rainfall days in May: 17.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in May
Riviera Beach, MD

Average snowfall in May - Riviera Beach, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Riviera Beach, MD

Average snowfall days in May - Riviera Beach, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in May
Riviera Beach, MD

Average sea temperature in May - Riviera Beach, MD
  • Average sea temperature in May: 55.9°F

The best month for swimming (with the highest average sea temperature) is August (77.5°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).

Average daylight in May /
Average sunshine in May
Riviera Beach, MD

Average daylight in May / Average sunshine in May - Riviera Beach, MD
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in May
Riviera Beach, MD

Average sunshine days in May - Riviera Beach, MD
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in May
Riviera Beach, MD

Average UV index in May - Riviera Beach, MD
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).

Average cloud cover in May
Riviera Beach, MD

Average cloud cover in May - Riviera Beach, MD
  • Average cloud cover in May: 42

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in May
Riviera Beach, MD

Average visibility in May - Riviera Beach, MD
  • 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).

Riviera Beach, Maryland, USA

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