May weather forecast
Southport, NY

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Weather in May

May, the last month of the spring in Southport, is a comfortable month, with an average temperature ranging between max 67.1°F (19.5°C) and min 46.8°F (8.2°C).

Temperature

The arrival of May signals an increase in the average high-temperature, moving from a fresh 53.6°F (12°C) in April to a refreshing 67.1°F (19.5°C). Southport's temperature drops to an average low of 46.8°F (8.2°C) during the nights of May.

Humidity

The months with the lowest humidity are April through July, with an average relative humidity of 78%.

Rainfall

In Southport, in May, during 17.7 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 172.7 rainfall days, and 29.57" (751mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.5 snowfall days, in May, Southport aggregates 0.24" (6mm) of snow. Throughout the year, there are 76.6 snowfall days, and 34.61" (879mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14h and 35min.
On the first day of May in Southport, sunrise is at 6:01 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:36 pm EDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 5 during May leads to these advisories:
Adopt protective measures - Suggestions to resist sunburn are offered. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

The high-temperature, in May, in Southport, is 67.1°F (19.5°C), while the low-temperature averages to 46.8°F (8.2°C).

What is the least humid month?

The months with the lowest humidity are April through July, with an average relative humidity of 78%.

What is the average humidity in May?

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

How many days does it rain in May?

In Southport, during May, the rain falls for 17.7 days and regularly aggregates up to 2.8" (71mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.5 snowfall days, in May, Southport aggregates 0.24" (6mm) of snow.

What is the average length of the day in May?

In May, the average day length is 14h and 35min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:01 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:36 pm EDT.

How many hours of sunshine does Southport have in May?

In May, the average sunshine duration is 8.6h.

What are the months with the highest UV index?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in May in Southport?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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, NY

Average temperature in May - Southport, NY
  • Average high temperature in May: 67.1°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in May: 46.8°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

Average pressure in May
Southport, NY

Average pressure in May - Southport, NY
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Southport, NY

Average wind speed in May - Southport, NY
  • Average wind speed in May: 7.3mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in May
Southport, NY

Average humidity in May - Southport, NY
  • Average humidity in May: 78%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, May, June and July (78%).

Average rainfall in May
Southport, NY

Average rainfall in May - Southport, NY
  • Average rainfall in May: 2.8"

The wettest month (with the highest rainfall) is April (3.07").
The driest months (with the least rainfall) are January and November (1.89").

Average rainfall days in May
Southport, NY

Average rainfall days in May - Southport, NY
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (8.3 days).

Average snowfall in May
Southport, NY

Average snowfall in May - Southport, NY
  • Average snowfall in May: 0.24"

The month with the highest snowfall is February (8.82").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Southport, NY

Average snowfall days in May - Southport, NY
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (17.7 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, NY

Average daylight in May / Average sunshine in May - Southport, NY
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).

Average sunshine days in May
Southport, NY

Average sunshine days in May - Southport, NY
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (7.3 days).

Average UV index in May
Southport, NY

Average UV index in May - Southport, NY
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Southport, NY

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

The months with the most cloud cover are January and February (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in May
Southport, NY

Average visibility in May - Southport, NY
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).

Southport, New York, USA

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