Hilton Head Island Weather in July

During July, Hilton Head Island experiences very high daytime temperatures of 32°C (90°F) and cooler nights around 24°C (75°F). Expect quite a bit of rainfall. Around 121 mm (4.8 in) is typical.

Rainfall in Hilton Head Island in July

Typically, you can expect about 13 days of rain this month, with 121 mm (4.8 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Hilton Head Island in July

Daytime highs in Hilton Head Island in July reach 32°C (90°F), with nights around 24°C (75°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning. These temperatures are typical, but it's wise to prepare for hotter days. Dress in light, airy clothing and protect yourself from the sun.

Sunshine in Hilton Head Island in July

With approximately 279 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Average water temperature in July

The water temperature is 28°C (82°F), which most people find very comfortable. A good month for swimming and water sports.

If your ideal day consists of dry skies and pleasant temperatures, March, April, May, October and November typically offer the best circumstances for Hilton Head Island.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Hilton Head Island's climate page.

Hilton Head Island Temperature in July

Min Temperature 24°C (75°F)  

Max Temperature 32°C (90°F)  

Water Temperature 28°C (82°F)  

Chance of Rain 42%  

Precipitation 121 mm (4.8 in)  

Rainy days 13 days  

Sunshine 279 hours  

Percentage Sunshine 64%  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Hilton Head Island typically stay consistent throughout July, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 24°C (75°F).

Average temperatures in July

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in July

‹ Select year to compare to 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 ›

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Hilton Head Island in July

Browse day-by-day weather records for Hilton Head Island spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

‹ 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 ›

‹ January February March April May June July August September October November December ›

Hilton Head Island historical weather extremes in July

Our historical data for Hilton Head Island spans 1976 to 2025, revealing these weather extremes.

• On July 29, 1993, temperatures climbed to 40°C (104°F), marking the warmest July day on record.
• The coldest July day was on July 31, 1997, with a maximum of 24°C (75°F).
• Nighttime temperatures dropped to 17°C (63°F) on July 9, 2006, marking the coldest July night on record.

What to Wear in Hilton Head Island in July

Warm but pleasant conditions in Hilton Head Island in July. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Hilton Head Island in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Hilton Head Island's climate page.

More climate data for Hilton Head Island

Temperature Rainfall Sunshine Water Temp

See the full Hilton Head Island climate overview or explore weather in the United States of America.