May weather - Spring 2024

Weather in May
Frequently asked questions
Average temperature in May
Average pressure in May
Average wind speed in May
Average humidity in May
Average rainfall in May
Average rainfall days in May
Average snowfall in May
Average snowfall days in May
Average sea temperature in May
Average daylight in May
Average sunshine in May
Average sunshine days in May
Average UV index in May
Average cloud cover in May
Average visibility in May

The Chesapeake Bay at dusk, in Annapolis, Maryland, with a distant view of the US Naval Academy chapel dome

Weather in May

May sees the city of Annapolis in full spring mode. The noticeable jump in temperature signals the close proximity of summer. Longer days and warmer weather make May the ideal time for outdoor activities and events. However, prospective visitors should prepare for the wettest month of the year in Annapolis. A characteristic trait of May is it's a comparatively higher amount of rainfall, which peaks at 0.87" (22mm).

Temperature

With the onset of May, Annapolis's weather sees a temperature rise, transitioning from a refreshing 62.2°F (16.8°C) in April to a pleasant 71.2°F (21.8°C). An average low-temperature of 57.7°F (14.3°C) is noted during the nights in May.

Humidity

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

Rainfall

In Annapolis, during May, the rain falls for 13.8 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Ocean temperature

In Annapolis, the average seawater temperature in May is 57.4°F (14.1°C).
Note: Diving into 57.4°F (14.1°C) is practical below 50°F (10°C), given you're wearing protective swim gear; without it, expect a quick onset of cold shock and a struggle to breathe. Merely touching waters at 55.4°F (13°C) feels ice-cold.

Daylight

In Annapolis, the average length of the day in May is 14h and 19min.
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 5:42 am and sunset at 8:25 pm EDT.

Sunshine

In May, the average sunshine is 9h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Annapolis. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Updated: Jun 4, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

The high-temperature, in May, in Annapolis, is 71.2°F (21.8°C), while the low-temperature averages to 57.7°F (14.3°C).

What is the most humid month?

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

What is the average humidity in May?

In Annapolis, the average relative humidity in May is 78%.

How many days does it rain in May?

In May, the rain falls for 13.8 days. Throughout May, 0.87" (22mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall in Annapolis.

What is the ocean temperature in May?

In Annapolis, Maryland, in May, the average water temperature is 57.4°F (14.1°C). Swimming in 57.4°F (14.1°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 Annapolis have in May?

In May, the average day length is 14h and 19min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:06 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.

How long on average sun shines in May?

In May, the average sunshine duration is 9h.

What are the months with the highest UV index?

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

What is the UV index intensity in May?

In Annapolis, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

62.2°F 16.8°C

71.2°F 21.8°C

79.3°F 26.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.5mph 16.9km/h

8.6mph 13.8km/h

8.1mph 13km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.1

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

14.7

14.8

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Annapolis, MD

Average high temperature in May: 71.2°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

Average low temperature in May: 57.7°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in May
Annapolis, MD

Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Annapolis, MD

Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in May
Annapolis, 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
Annapolis, MD

Average rainfall in May: 0.87"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in May
Annapolis, MD

Average rainfall days in May: 13.8 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

Average snowfall in May
Annapolis, MD

Average snowfall in May: 0"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Annapolis, MD

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in May
Annapolis, MD

Average sea temperature in May: 57.4°F

The best month for swimming (with the highest average sea temperature) is August (77.8°F).
The coldest month (with the lowest average sea temperature) is February (45.1°F).

Average daylight in May /
Average sunshine in May
Annapolis, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in May
Annapolis, MD

Average sunshine days in May: 14.7 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

Average UV index in May
Annapolis, 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 and December (UV index 2).

Average cloud cover in May
Annapolis, MD

Average cloud cover in May: 41

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
Annapolis, 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).

May weather forecast
Annapolis, MD

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