May weather forecast
Ocean City, MD

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The Ocean city in Maryland, with water on both sides of the city
The Ocean city in Maryland, with water on both sides of the city

Weather in May

The euphoria of spring gives way to the early whispers of summer in May in Ocean City. During this month, the sea temperature warms significantly to 57.8°F (14.3°C) compared to April's cooler 49.5°F (9.7°C). Prolonged daylight invites the urban populace into the beaches, local parks, and waterfront cafes. Cloud cover scantily hovers over the city, hinting at clear blue skies. Ocean City lives up to its moniker, providing a breezy seafront experience for every beach enthusiast.

Temperature

Ocean City's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's refreshing 56.1°F (13.4°C) to a comfortable 65.1°F (18.4°C). Ocean City, during May nights, experiences a subtle shift to a low average of 59.5°F (15.3°C) from the day's heat.

Humidity

With an average relative humidity of 82%, May is the most humid month.

Rainfall

In Ocean City, Maryland, in May, it is raining for 14.3 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 150.3 rainfall days, and 23.11" (587mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Ocean temperature

In Ocean City, Maryland, in May, the average water temperature is 57.7°F (14.3°C).
Note: With an efficient thermal swimsuit, one can navigate 57.7°F (14.3°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.

Daylight

The average length of the day in May is 14h and 16min.
On the first day of the month, sunrise is at 6:02 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:38 am and sunset at 8:17 pm EDT.

Sunshine

In May, the average sunshine is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 during May leads to these advisories:
Deflect overexposure. Sun protection is a necessity. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Ocean City?

In Ocean City, in May, the average high-temperature is 65.1°F (18.4°C), and the average low-temperature is 59.5°F (15.3°C).

What is the most humid month?

The most humid month is May, with an average relative humidity of 82%.

What is the average humidity in May?

In May, the average relative humidity is 82%.

How much does it rain in May?

In Ocean City, in May, it is raining for 14.3 days, with typically 1.81" (46mm) of accumulated precipitation.

When it does not snow?

In Ocean City, snow does not fall in April through October.

How cold is the water in May?

In May, the average ocean temperature is 57.7°F (14.3°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 Ocean City have in May?

In Ocean City, the average day length in May is 14h and 16min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:17 pm EDT.

How long on average sun shines in May in Ocean City?

In May, the average sunshine duration is 9.5h.

What are the months with the highest UV index?

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

What is the UV index reading in May?

In May, the average daily maximum UV index in Ocean City is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMayJJASOND
Apr
May
Jun
Average high temperature
56.1°F 13.4°C
65.1°F 18.4°C
74.1°F 23.4°C
Average low temperature
49.8°F 9.9°C
59.5°F 15.3°C
69.3°F 20.7°C
Average pressure
30" 762mmHg
30.02" 763mmHg
29.94" 760mmHg
Average wind speed
13.2mph 21.2km/h
11.6mph 18.7km/h
10.6mph 17.1km/h
Average max. wind speed
14.3mph 23km/h
12.3mph 19.8km/h
11.3mph 18.2km/h
Average wind speed gusts
23mph 37km/h
19.9mph 32km/h
17.8mph 28.6km/h
Average humidity
78%
82%
80%
Average rainfall
1.81" 46mm
1.81" 46mm
1.93" 49mm
Average rainfall days
13.3
14.3
13.9
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0.1
0
0
Average sea temperature
49.5°F 9.7°C
57.8°F 14.3°C
69.4°F 20.8°C
Average daylight
13h 1min
14h 2min
14h 5min
Average sunshine
9h 1min
9h 3min
10h 4min
Average sunshine days
15
14.7
14.1
Average UV index
4
6
6
Average cloud cover
38%
37%
27%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in May
Ocean City, MD

Average temperature in May - Ocean City, MD
  • Average high temperature in May: 65.1°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in May: 59.5°F

The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

Average pressure in May
Ocean City, MD

Average pressure in May - Ocean City, MD
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Ocean City, MD

Average wind speed in May - Ocean City, MD
  • Average wind speed in May: 11.6mph

The windiest month (with the highest average wind speed) is January (13.9mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).

Average humidity in May
Ocean City, MD

Average humidity in May - Ocean City, MD
  • Average humidity in May: 82%

The month with the highest relative humidity is May (82%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall in May
Ocean City, MD

Average rainfall in May - Ocean City, MD
  • Average rainfall in May: 1.81"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in May
Ocean City, MD

Average rainfall days in May - Ocean City, MD
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in May
Ocean City, MD

Average snowfall in May - Ocean City, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Ocean City, MD

Average snowfall days in May - Ocean City, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in May
Ocean City, MD

Average sea temperature in May - Ocean City, MD
  • Average sea temperature in May: 57.8°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 (41.9°F).

Average daylight in May /
Average sunshine in May
Ocean City, MD

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in May
Ocean City, MD

Average sunshine days in May - Ocean City, MD
  • Average sunshine days in May: 14.7 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (12.5 days).

Average UV index in May
Ocean City, MD

Average UV index in May - Ocean City, 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 and December (UV index 2).

Average cloud cover in May
Ocean City, MD

Average cloud cover in May - Ocean City, MD
  • Average cloud cover in May: 37

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in May
Ocean City, MD

Average visibility in May - Ocean City, 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).

Ocean City, Maryland, USA

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