May weather forecast
Baltimore, MD

A golden evening appearance of tall buildings in Baltimore, Maryland
A golden evening appearance of tall buildings in Baltimore, Maryland

Weather in May

May, the last month of the spring in Baltimore, is an agreeable month, with an average temperature ranging between min 55.9°F (13.3°C) and max 72.1°F (22.3°C).

Temperature

In Baltimore, the average high-temperature in May rises from an enjoyable 63°F (17.2°C) in April to an agreeable 72.1°F (22.3°C). In May, the average low-temperature is 55.9°F (13.3°C).

Humidity

May is the most humid month, with an average relative humidity of 77%.

Rainfall

In May, in Baltimore, the rain falls for 18.1 days. Throughout May, 3.07" (78mm) of precipitation is accumulated. Throughout the year, in Baltimore, there are 158.5 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Baltimore.

Ocean temperature

In May, the average ocean temperature is 55.9°F (13.3°C).
Note: Swimming in 55.9°F (13.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In May, the average length of the day in Baltimore, Maryland, is 14h and 21min.
On the first day of May in Baltimore, sunrise is at 6:07 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:26 pm EDT.

Sunshine

In Baltimore, Maryland, the average sunshine in May is 9h.

UV index

The months with the highest UV index in Baltimore are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in May interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the most humid month in Baltimore?

The most humid month in Baltimore, Maryland, is May, with an average relative humidity of 77%.

What is the average humidity in May in Baltimore?

In May, the average relative humidity in Baltimore is 77%.

How many days does it rain in May in Baltimore?

In Baltimore, in May, during 18.1 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

When it does not snow in Baltimore?

In Baltimore, Maryland, snow does not fall in April through October.

How cold is the water in May in Baltimore?

In Baltimore, Maryland, the average seawater temperature in May is 55.9°F (13.3°C). Swimming in 55.9°F (13.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Baltimore have in May?

In Baltimore, Maryland, the average day length in May is 14h and 21min.

When are sunrise and sunset in May in Baltimore?

On the first day of May in Baltimore, Maryland, sunrise is at 6:07 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:26 pm EDT.

How many hours of sunshine does Baltimore have in May?

The average sunshine duration in May is 9h.

What are the months with the highest UV index in Baltimore?

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

How high is the UV index in May in Baltimore?

In Baltimore, Maryland, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Baltimore, MD

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

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in May: 55.9°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

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Average pressure in May
Baltimore, MD

Average pressure in May - Baltimore, 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).

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Average wind speed in May
Baltimore, MD

Average wind speed in May - Baltimore, MD
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in May
Baltimore, MD

Average humidity in May - Baltimore, MD
  • Average humidity in May: 77%

The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are April, July and November (72%).

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Average rainfall in May
Baltimore, MD

Average rainfall in May - Baltimore, MD
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in May
Baltimore, MD

Average rainfall days in May - Baltimore, MD
  • Average rainfall days in May: 18.1 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.4 days).

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Average snowfall in May
Baltimore, MD

Average snowfall in May - Baltimore, MD
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Baltimore, MD

Average snowfall days in May - Baltimore, MD
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in May
Baltimore, MD

Average sea temperature in May - Baltimore, 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).

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Average daylight in May /
Average sunshine in May
Baltimore, MD

Average daylight in May / Average sunshine in May - Baltimore, MD
  • Average daylight in May: 14h and 21min

The month with the longest days is June (Average daylight: 14h and 53min).
The month with the shortest days is December (Average daylight: 9h and 28min).

  • Average sunshine in May: 9h and 0min

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 0min).

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Average sunshine days in May
Baltimore, MD

Average sunshine days in May - Baltimore, MD
  • Average sunshine days in May: 10.3 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (10.3 days).

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Average UV index in May
Baltimore, MD

Average UV index in May - Baltimore, 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, February, November and December (UV index 2).

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Average cloud cover in May
Baltimore, MD

Average cloud cover in May - Baltimore, MD
  • Average cloud cover in May: 43

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in May
Baltimore, MD

Average visibility in May - Baltimore, 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).

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