Carolina Weather in July

July in Carolina brings very high temperatures, with daytime highs of 31°C (88°F) and nights around 25°C (77°F). Quite a bit of rainfall is expected, around 113 mm (4.4 in), so pack an umbrella.

Rainfall in Carolina in July

Historically, the month has about 19 days of rain, averaging 113 mm (4.4 in) in total. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Carolina in July

July in Carolina brings very high temperatures, with highs of 31°C (88°F) and nights around 25°C (77°F). Indoor breaks or shaded spots can make the warmer part of the day much more comfortable. With lows around 25°C (77°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in Carolina in July

Enjoy a sunny month with about 281 hours of sunshine, the clear skies make Carolina even more beautiful.

Wind Speed in Carolina in July

July sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

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 you prefer dry days with pleasant temperatures, July may not be the ideal month to visit Carolina. Our weather planner can help you explore destinations with more pleasant weather conditions.

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For a detailed overview over the year and the best time to visit Puerto Rico, check out our Carolina's climate page.

Carolina Temperature in July

Min Temperature 25°C (77°F)  

Max Temperature 31°C (88°F)  

Water Temperature 28°C (82°F) *  

Chance of Rain 63%  

Precipitation 113 mm (4.4 in)  

Rainy days 19 days  

Humidity 76% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 281 hours *  

Percentage Sunshine 68% *  

* Data from: San Juan, Puerto Rico (7 KM, 4 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Carolina typically stay consistent throughout July, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 26°C (79°F).

Average temperatures in July

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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

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

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Historical weather for Carolina in July

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

Historical weather Temperatures Precipitation

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

Carolina historical weather extremes in July

Based on 49 years of weather observations in Carolina between 1976 and 2025, these are the recorded extremes.

• The hottest July day on record in Carolina reached 34°C (93°F) (July 5, 2024).
• On July 19, 2010, Carolina saw its coldest July day with temperatures maxing out at 27°C (81°F).
• The coldest night in July in Carolina was on July 13, 2003, with a minimum of 22°C (72°F).

What to Wear in Carolina in July

Warm weather calls for comfortable, breathable clothing in July. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Carolina 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 Puerto Rico, check out our Carolina's climate page.

More climate data for Carolina

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Carolina climate overview or explore weather in Puerto Rico.