May weather forecastSavannah, GA

May
Weather in May
May signifies the true arrival of summer in Savannah, Georgia. The most notable feature is the increase in temperature with the highest average temperature climbing up to 82.2°F (27.9°C). Sunshine hours are at their peak and daylight hours continue to increase, contributing to a consistent warming trend. It's a period of transition towards the true summer heat, but still accommodating enough for outdoor activities. Thus, May in Savannah, Georgia showcases a bright, warm city, ready for the summer.Temperature
The average high-temperature mildly increases in May, edging from 75.7°F (24.3°C) in April to a still warm 82.2°F (27.9°C). During May nights, Savannah witnesses a consistent average temperature of 67.1°F (19.5°C).Heat index
The average heat index in May is appraised at a hot 87.8°F (31°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In Savannah, Georgia, the average relative humidity in May is 74%.Rainfall
In Savannah, in May, during 13.6 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. Throughout the year, there are 155.6 rainfall days, and 29.41" (747mm) of precipitation is accumulated.Snowfall
In Savannah, snow does not fall in February through November.Ocean temperature
In May, the average ocean temperature is 72.9°F (22.7°C).Note: When thinking about a swim in 72.9°F (22.7°C) waters, consider your cold tolerance, the day's sunshine, wind, and air temperature. It is a fun fact that Olympic swimmers dive into waters of 77°F (25°C) to 82.4°F (28°C).
Daylight
The average length of the day in May is 13h and 49min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:05 pm. On the last day of May, sunrise is at 6:18 am and sunset at 8:25 pm EDT.
Sunshine
The average sunshine in May in Savannah is 10.4h.UV index
The months with the highest UV index in Savannah, Georgia, are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 7 in May transforms into the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. 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. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Alert! UV radiation becomes sharper due to reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Savannah, GA
- Average high temperature in May: 82.2°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (58.1°F).
- Average low temperature in May: 67.1°F
The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (43.7°F).
Average pressure in May
Savannah, GA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in May
Savannah, GA
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Savannah, GA
- Average humidity in May: 74%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (71%).
Average rainfall in May
Savannah, GA
- Average rainfall in May: 1.97"
The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in May
Savannah, GA
- Average rainfall days in May: 13.6 days
The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in May
Savannah, GA
- Average snowfall in May: 0"
The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Savannah, GA
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January, February and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in May
Savannah, GA
- Average sea temperature in May: 72.9°F
The best month for swimming (with the highest average sea temperature) is August (83.7°F).
The coldest month (with the lowest average sea temperature) is February (56.6°F).
Average daylight in May /
Average sunshine in May
Savannah, GA
- Average daylight in May: 13h and 48min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in May: 10h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in May
Savannah, GA
- Average sunshine days in May: 15.4 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is August (8.5 days).
Average UV index in May
Savannah, GA
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in May
Savannah, GA
- Average cloud cover in May: 29
The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in May
Savannah, GA
- 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).





