May weather forecast
Herald Harbor, MD

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Weather in May

May, the last month of the spring in Herald Harbor, is a pleasant month, with an average temperature ranging between max 72.1°F (22.3°C) and min 57.2°F (14°C).

Temperature

The start of May brings a shift in the average high-temperature, increasing from April's comfortable 62.8°F (17.1°C) to an agreeable 72.1°F (22.3°C). Herald Harbor observes an average nighttime temperature of 57.2°F (14°C) during May.

Humidity

May is the most humid month in Herald Harbor, with an average relative humidity of 78%.

Rainfall

In Herald Harbor, in May, during 17.5 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. In Herald Harbor, during the entire year, the rain falls for 155.7 days and collects up to 31.22" (793mm) of precipitation.

Snowfall

In Herald Harbor, snow does not fall in May through October.

Ocean temperature

In May, the average ocean temperature is 55.9°F (13.3°C).
Note: Without suitable protection, venturing into 55.9°F (13.3°C) waters cooler than 50°F (10°C) can lead to pronounced cold shock and rapid breaths.

Daylight

The average length of the day in May in Herald Harbor is 14h and 20min.
On the first day of May in Herald Harbor, 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 8:25 pm EDT.

Sunshine

In Herald Harbor, the average sunshine in May 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 reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 6 in May transforms into this advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

What are May temperatures in Herald Harbor?

In Herald Harbor, in May, the average high-temperature is 72.1°F (22.3°C), and the average low-temperature is 57.2°F (14°C).

What is the most humid month in Herald Harbor?

The most humid month in Herald Harbor, Maryland, is May, with an average relative humidity of 78%.

What is the average humidity in May in Herald Harbor?

The average relative humidity in May is 78%.

How many days does it rain in May in Herald Harbor?

In Herald Harbor, during May, the rain falls for 17.5 days and regularly aggregates up to 2.87" (73mm) of precipitation.

When it does not snow in Herald Harbor?

In Herald Harbor, Maryland, snow does not fall in May through October.

Does it snow in Herald Harbor in May?

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

How cold is the water in May in Herald Harbor?

In Herald Harbor, Maryland, in May, the average water temperature is 55.9°F (13.3°C). 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.

How many hours of daylight does Herald Harbor have in May?

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

When is the sunrise / sunset in May in Herald Harbor?

In May, on the first day of the month, sunrise is at 6:07 am and sunset at 7:59 pm. On the last day of the month, in Herald Harbor, sunrise is at 5:42 am and sunset at 8:25 pm EDT.

How many hours of sunshine does Herald Harbor have in May?

In Herald Harbor, the average sunshine duration in May is 9.1h.

What is the month with the highest UV index in Herald Harbor?

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

How high is the UV index in May in Herald Harbor?

The average daily maximum UV index in May in Herald Harbor, Maryland, is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMayJJASOND
Apr
May
Jun
Average high temperature
62.8°F 17.1°C
72.1°F 22.3°C
80.2°F 26.8°C
Average low temperature
47.5°F 8.6°C
57.2°F 14°C
65.7°F 18.7°C
Average pressure
29.99" 762mmHg
30.01" 762mmHg
29.94" 760mmHg
Average wind speed
9.1mph 14.6km/h
7.5mph 12.1km/h
7mph 11.3km/h
Average max. wind speed
9.9mph 15.9km/h
8.1mph 13km/h
7.5mph 12.1km/h
Average wind speed gusts
14.5mph 23.3km/h
11.8mph 19km/h
10.9mph 17.5km/h
Average humidity
72%
78%
75%
Average rainfall
2.6" 66mm
2.87" 73mm
2.6" 66mm
Average rainfall days
15.7
17.5
14.2
Average snowfall
0.08" 2mm
0" 0mm
0" 0mm
Average snowfall days
0.1
0
0
Average sea temperature
50.5°F 10.3°C
55.9°F 13.3°C
68.2°F 20.1°C
Average daylight
13h 2min
14h 2min
14h 5min
Average sunshine
8h 5min
9h 1min
10h 2min
Average sunshine days
12.8
10.8
14
Average UV index
4
6
6
Average cloud cover
41%
42%
32%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in May
Herald Harbor, MD

Average temperature in May - Herald Harbor, 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).

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Average pressure in May
Herald Harbor, MD

Average pressure in May - Herald Harbor, 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
Herald Harbor, MD

Average wind speed in May - Herald Harbor, 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).

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Average humidity in May
Herald Harbor, MD

Average humidity in May - Herald Harbor, 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%).

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Average rainfall in May
Herald Harbor, MD

Average rainfall in May - Herald Harbor, 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").

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Average rainfall days in May
Herald Harbor, MD

Average rainfall days in May - Herald Harbor, 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).

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Average snowfall in May
Herald Harbor, MD

Average snowfall in May - Herald Harbor, 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").

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Average snowfall days in May
Herald Harbor, MD

Average snowfall days in May - Herald Harbor, 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).

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Average sea temperature in May
Herald Harbor, MD

Average sea temperature in May - Herald Harbor, 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
Herald Harbor, MD

Average daylight in May / Average sunshine in May - Herald Harbor, 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).

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Average sunshine days in May
Herald Harbor, MD

Average sunshine days in May - Herald Harbor, 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).

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Average UV index in May
Herald Harbor, MD

Average UV index in May - Herald Harbor, 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).

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Average cloud cover in May
Herald Harbor, MD

Average cloud cover in May - Herald Harbor, 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).

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Average visibility in May
Herald Harbor, MD

Average visibility in May - Herald Harbor, 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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Herald Harbor, Maryland, USA

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