Hilton Head Weather in May: Temperature, Precipitation, Wind

Temperature
22.8°C
73.1°F
High temperature
29°C
84.2°F
Low temperature
17.5°C
63.4°F
Feels like
22.9°C
73.2°F
Rainy days
20 days
Rainfall level
4.41mm
0.17 inch
Cloud coverage
27%
Wind speed
27.7km/h
17.2mph
Daylight time
13:49:24
UV index
8.9
1
clear day
19.2°C
67.0°F
2
clear day
21.3°C
70.0°F
3
clear day
24.0°C
75.0°F
4
rain
23.2°C
74.0°F
5
rain
27.2°C
81.0°F
6
rain
25.9°C
79.0°F
7
rain
24.2°C
76.0°F
8
rain
24.6°C
76.0°F
9
clear day
24.0°C
75.0°F
10
partly cloudy day
22.1°C
72.0°F
11
rain
25.7°C
78.0°F
12
rain
25.4°C
78.0°F
13
rain
19.4°C
67.0°F
14
rain
20.4°C
69.0°F
15
clear day
21.6°C
71.0°F
16
partly cloudy day
22.1°C
72.0°F
17
rain
23.2°C
74.0°F
18
rain
24.1°C
75.0°F
19
rain
25.0°C
77.0°F
20
rain
20.0°C
68.0°F
21
partly cloudy day
20.2°C
68.0°F
22
rain
22.0°C
72.0°F
23
rain
23.0°C
73.0°F
24
rain
20.7°C
69.0°F
25
rain
22.1°C
72.0°F
26
rain
21.8°C
71.0°F
27
rain
20.5°C
69.0°F
28
clear day
23.0°C
73.0°F
29
rain
22.8°C
73.0°F
30
clear day
23.7°C
75.0°F
31
clear day
24.6°C
76.0°F

Hilton Head, United States in May experiences a warm and pleasant climate, characteristic of its coastal location in South Carolina. The average temperature hovers around 22.8°C (73.1°F), providing comfortable conditions for visitors and residents alike.

Daytime temperatures in Hilton Head during May reach an average high of 29.0°C (84.2°F). The heat index, or “feels like” temperature, closely mirrors the actual temperature, peaking at 29.1°C (84.4°F). Nighttime brings cooler conditions, with average lows dipping to 17.5°C (63.4°F).

Humidity levels in May average 64.1%, contributing to a muggy atmosphere. Precipitation is moderate, with an average of 4.41 mm of rainfall throughout the month. Rain occurs on approximately 20 days, covering about 8.6% of the time. The most common precipitation type is rain.

Wind plays a significant role in Hilton Head’s May weather. Average wind speeds reach 27.7 km/h (17.2 mph), with gusts up to 46.3 km/h (28.8 mph). These breezes provide relief from the warmth and humidity, especially along the island’s famous beaches like Coligny Beach and Folly Field Beach.

Cloud cover is relatively low in May, averaging 27.0%. This allows for ample sunshine, reflected in the high UV index of 8.9. Visitors to popular spots like Harbour Town Lighthouse or Sea Pines Forest Preserve should take precautions against sun exposure.

Visibility in Hilton Head during May is excellent, averaging 15.2 km (9.4 miles). This clarity enhances views of the Atlantic Ocean from vantage points like Driessen Beach Park.

May in Hilton Head sees long days, with sunrise occurring around 6:41 AM and sunset at approximately 8:30 PM. These extended daylight hours provide ample time for outdoor activities and exploration of the island’s natural beauty.

Severe weather risk in May is moderate, with an average severe risk index of 38.7. Visitors and residents should stay informed about weather conditions, when enjoying outdoor attractions like Pinckney Island National Wildlife Refuge.

What is the temperature in Hilton Head in May?

Average air temperature in Hilton Head is 22.8°C (73.1°F) in May. The outside temperature in Hilton Head feels like 22.9°C (73.2°F) on a typical May day. The highest average temperature during sunny days is 29°C (84.2°F) and feels like 29.1°C (84.4°F). The lowest average temperature after dark is 17.5°C (63.4°F) which feels like 17.5°C (63.4°F).

Daily Temperature in Hilton Head in May 0°C / 32.0°F 10°C / 50.0°F 20°C / 68.0°F 30°C / 86.0°F 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

How hot is Hilton Head in May?

The hot temperature in May in Hilton Head rises to 35.3°C (95.5°F) on sunny days with low cloud coverage and 64.1% humidity. During hottest days of May it feels like 35.3 °C (95.5°F). The average maximum temp in Hilton Head is 29°C (95.5°F) during day time in May.

How cold is Hilton Head in May?

The coldest temp in Hilton Head in May drops to 12.3°C (54.1°F) during the cold nights. With 27.7km/h (17.2mph) winds and 64.1% humidity it feels like 12.3°C (54.1°F) on the coldest nights. The average minimum temperature is 17.5°C (63.4°F) during night time in May.

Does it rain in Hilton Head in May?

Yes, it rains for 20 days in Hilton Head, United States in May averaging 4.41 mm of precipitation. Hilton Head has a 64.5% chance for rain throughout the entire month of May.

How much does it rain in Hilton Head throughout May?

Hilton Head has 4.41 mm (0.17 inch) of rain per day on average in May. It rains for an average of 20 days out of the entire month.

Is Hilton Head windy in May?

The average speed of wind in Hilton Head, United States during May is 27.7km/h (17.2mph) and average windgust is 46.3km/h (28.7mph). On some days in May wind can reach up to 48.6km/h (30.2mph).

Daily wind speed in Hilton Head in May 0km/h (0mph) 13km/h (8mph) 26km/h (16mph) 39km/h (24mph) 52km/h (32mph) 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

What is the direction of the wind in Hilton Head in May?

Most days of May the wind is blowing from South-Southeast direction in Hilton Head.

What are the humidity levels in Hilton Head in May?

The average humidity levels in Hilton Head in May are 64.1%. Daily humidity levels in Hilton Head range from 37.4% to 78.9% during May.

Daily humidity levels in Hilton Head in May 0% 20% 40% 60% 80% 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

How many hours of daylight are in Hilton Head in May?

Hilton Head has 13 hours 49 minutes of daylight in May on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Hilton Head in May is at 6:41:16 and the sunset is at 20:30:40.

What is the cloud coverage in Hilton Head in May?

Clouds cover 27% of the sky on average throughout May in Hilton Head. The cloud coverage ranges from 2.1% to 78.3% depending on the day of the month.

What is the UV level in May in Hilton Head?

The average UV index in Hilton Head is 8.9 in May. UV levels change throughout the month and range from 6 to 10.

What is the solar radiation in Hilton Head in May?

The average solar radiation is 252.5 W/m2 (Watts per square meter) in Hilton Head during May. However solar radiation levels change throughout the month and range from 95.2 W/m2 to 327.4 W/m2.

What is the solar energy during May in Hilton Head?

The average solar energy during May in Hilton Head is 21.7 MJ/m2 (megajoules per square metre). Solar energy ranges from 8.2 MJ/m2, to 28.3 MJ/m2 during May.

Are there severe weather risks in Hilton Head in May?

Yes, there is a 38.7% risk for severe weather in Hilton Head, United States in May.

What is the air pressure in Hilton Head in May?

On average the air pressure in Hilton Head in May is 1011.7 mb (millibars). Throughout the month the sea level pressure ranges from 1004.9 mb to 1021 mb.

What is the visibility in Hilton Head in May?

The average daylight visibility in Hilton Head in May is 15.2 km (9.4 miles). Depending on the precipitation the visibility ranges from 12.4 km (7.7 miles) to 16 km (9.9 miles) throughout May.

What is the dew point in Hilton Head in May?

The average dew point in Hilton Head during May is 14.9°C (58.8°F).

Where is the data for Hilton Head climate in May coming from?

The climate data for Hilton Head, South Carolina, United States in May is collected from the following weather stations.

  • ABILENE DYESS AFB, TX US
  • SWEETWATER AVENGER FIELD, TX US
  • ABILENE REGIONAL AIRPORT, TX US
  • BRONTE 11 NNE, TX US
  • HAMBY TX US
  • KABI
  • KDYS