May weather forecast
Southport, ME

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Weather in May

May, the last month of the spring in Southport, is a moderate month, with an average temperature ranging between max 58.6°F (14.8°C) and min 46°F (7.8°C).

Temperature

May shows a rise in the average high-temperature, moving from April's chilly 48.9°F (9.4°C) to a refreshing 58.6°F (14.8°C). Southport witnesses a consistent average low-temperature of 46°F (7.8°C) throughout May.

Humidity

In Southport, the average relative humidity in May is 81%.

Rainfall

In Southport, in May, it is raining for 15 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 147.2 rainfall days, and 31.34" (796mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Southport aggregates 0.16" (4mm) of snow. Throughout the year, there are 40.2 snowfall days, and 18.82" (478mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 46min.
On the first day of the month, sunrise is at 5:29 am and sunset at 7:41 pm. On the last day of May, sunrise is at 4:59 am and sunset at 8:13 pm EDT.

Sunshine

The average sunshine in May is 8.2h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 4 during May leads to these advisories:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

In May, the average high-temperature and low-temperature are 58.6°F (14.8°C) and 46°F (7.8°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 81%.

How much does it rain in May?

In May, the rain falls for 15 days. Throughout May, 2.28" (58mm) of precipitation is accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Southport aggregates 0.16" (4mm) of snow.

What is the average length of the day in May?

In Southport, the average day length in May is 14h and 46min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:29 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 4:59 am and sunset at 8:13 pm EDT.

How many hours of sunshine does Southport have in May?

In Southport, the average sunshine duration in May is 8.2h.

What is the UV index intensity in May?

The average daily maximum UV index in May in Southport is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Southport, ME

Average temperature in May - Southport, ME
  • Average high temperature in May: 58.6°F

The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in May: 46°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in May
Southport, ME

Average pressure in May - Southport, ME
  • Average pressure in May: 29.99"Hg

The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Southport, ME

Average wind speed in May - Southport, ME
  • Average wind speed in May: 8.5mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in May
Southport, ME

Average humidity in May - Southport, ME
  • Average humidity in May: 81%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is November (75%).

Average rainfall in May
Southport, ME

Average rainfall in May - Southport, ME
  • Average rainfall in May: 2.28"

The wettest months (with the highest rainfall) are October and December (3.5").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in May
Southport, ME

Average rainfall days in May - Southport, ME
  • Average rainfall days in May: 15 days

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is January (7.2 days).

Average snowfall in May
Southport, ME

Average snowfall in May - Southport, ME
  • Average snowfall in May: 0.16"

The month with the highest snowfall is January (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Southport, ME

Average snowfall days in May - Southport, ME
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Southport, ME

Average daylight in May / Average sunshine in May - Southport, ME
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).

Average sunshine days in May
Southport, ME

Average sunshine days in May - Southport, ME
  • Average sunshine days in May: 14.5 days

The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is April (11.9 days).

Average UV index in May
Southport, ME

Average UV index in May - Southport, ME
  • Average UV index in May: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in May
Southport, ME

Average cloud cover in May - Southport, ME
  • Average cloud cover in May: 47

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in May
Southport, ME

Average visibility in May - Southport, ME
  • 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).

Southport, Maine, USA

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