May weather forecast
Portal, GA

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Weather in May

The last month of the spring, May, is also a moderately hot month in Portal, Georgia, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 64.4°F (18°C).

Temperature

With the onset of May, Portal experiences a subtle temperature shift, with the average high-temperature moving from a warm 75°F (23.9°C) in April to a still moderately hot 82°F (27.8°C). During May, Portal experiences a consistent low-temperature average of 64.4°F (18°C).

Heat index

In May, the heat index is computed to be a tropical 87.8°F (31°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', melds the effects of warmth and moisture to generate a feeling of heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold particular importance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In Portal, the average relative humidity in May is 75%.

Rainfall

In Portal, during May, the rain falls for 13.3 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 140.8 rainfall days, and 17.09" (434mm) of precipitation is accumulated.

Snowfall

In Portal, snow does not fall in March through December.

Daylight

In Portal, the average length of the day in May is 13h and 50min.
On the first day of the month, sunrise is at 6:40 am and sunset at 8:09 pm. On the last day of May, sunrise is at 6:21 am and sunset at 8:29 pm EDT.

Sunshine

In May, the average sunshine in Portal is 10.2h.

UV index

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Portal?

The high-temperature in Portal, Georgia, during May is 82°F (27.8°C) and the low-temperature is 64.4°F (18°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, in May is computed to be 87.8°F (31°C).

What is the average humidity in May in Portal?

The average relative humidity in May is 75%.

How much does it rain in Portal in May?

In Portal, during May, the rain falls for 13.3 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow in Portal?

In Portal, snow does not fall in March through December.

How many hours of daylight does Portal have in May?

The average day length in May in Portal, Georgia, is 13h and 50min.

When are sunrise and sunset in May in Portal?

In May, on the first day of the month, sunrise is at 6:40 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:29 pm EDT.

How many hours of sunshine does Portal have in May?

In Portal, Georgia, the average sunshine duration in May is 10.2h.

What is the UV index intensity in May in Portal?

The average daily maximum UV index in May in Portal is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Portal, GA

Average temperature in May - Portal, GA
  • Average high temperature in May: 82°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (56.1°F).

  • Average low temperature in May: 64.4°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).

Average pressure in May
Portal, GA

Average pressure in May - Portal, GA
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in May
Portal, GA

Average wind speed in May - Portal, GA
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in May
Portal, GA

Average humidity in May - Portal, GA
  • Average humidity in May: 75%

The month with the highest relative humidity is August (78%).
The month with the lowest relative humidity is January (71%).

Average rainfall in May
Portal, GA

Average rainfall in May - Portal, GA
  • Average rainfall in May: 1.54"

The wettest month (with the highest rainfall) is August (2.44").
The driest month (with the least rainfall) is November (0.75").

Average rainfall days in May
Portal, GA

Average rainfall days in May - Portal, GA
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (5.8 days).

Average snowfall in May
Portal, GA

Average snowfall in May - Portal, GA
  • Average snowfall in May: 0"

The months with the highest snowfall are January and February (0.04").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Portal, GA

Average snowfall days in May - Portal, GA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Portal, GA

Average daylight in May / Average sunshine in May - Portal, GA
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in May: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in May
Portal, GA

Average sunshine days in May - Portal, GA
  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is August (8.9 days).

Average UV index in May
Portal, GA

Average UV index in May - Portal, GA
  • Average UV index in May: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in May
Portal, GA

Average cloud cover in May - Portal, GA
  • Average cloud cover in May: 33

The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in May
Portal, GA

Average visibility in May - Portal, GA
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Portal, Georgia, USA

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