Chungcheongnam-Do Weather in July

Average temperatures, rainfall, sunshine and the best places to visit in Chungcheongnam-Do, South Korea in July.

Planning a trip to Chungcheongnam-Do, South Korea this July? Here's what you need to know about the weather:

What to Expect in Chungcheongnam-Do in July

Chungcheongnam-Do, South Korea is a region in South Korea. July in Chungcheongnam-Do generally has temperatures that range from warm to very warm, with heavy precipitation. During July, summer is in full swing.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is warm in Boryeong at 28°C (82°F) to very warm in Cheonan at 31°C (88°F). Nighttime temperatures generally drop to 22°C (72°F) in Cheonan and 23°C (73°F) in Boryeong. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.

For a closer look at conditions across Chungcheongnam-Do, South Korea, refer to the map below.

Precipitation

In July, precipitation varies across different areas. From heavy rainfall in Asan with an average of 254 mm (10 in) to heavy rainfall in Sancheong with 330 mm (13 in). Based on our climate, it is the month with the most precipitation throughout the year in Cheonan.

Average sunshine

Most areas see decent amounts of sunshine this month. Cheonan gets around 187 hours of sunlight, providing a pleasant balance of sun and clouds. If you'd prefer more guaranteed sunshine, our weather planner can show you sunnier spots around the world.

Explore Chungcheongnam-Do by month

Pick a month to see the average temperature, rainfall and sunshine in Chungcheongnam-Do - and find the best time to visit. (based on Cheonan)

Best Places to Visit in Chungcheongnam-Do in July

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Chungcheongnam-Do.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Chungcheongnam-Do

What is the weather like in July for some of the most popular destinations in Chungcheongnam-Do, South Korea?

Temperature range in Chungcheongnam-Do (July)

Precipitation variation in Chungcheongnam-Do (July)

Cheonan

In July Cheonan generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

June
July
August
Max temperature
29°C (84°F)
31°C (88°F)
31°C (88°F)
Min temperature
18°C (64°F)
22°C (72°F)
22°C (72°F)
Monthly sun hours
222 hours
187 hours
209 hours
Monthly rainfall
137 mm (5.4 in)
265 mm (10 in)
241 mm (9.5 in)
Monthly rainy days
10 days
15 days
13 days
Weather conditions

Buyeo

In July Buyeo generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

June
July
August
Max temperature
28°C (82°F)
30°C (86°F)
31°C (88°F)
Min temperature
18°C (64°F)
23°C (73°F)
23°C (73°F)
Monthly sun hours
183 hours
142 hours
155 hours
Monthly rainfall
142 mm (5.6 in)
271 mm (11 in)
242 mm (9.5 in)
Monthly rainy days
10 days
14 days
13 days
Weather conditions

Boryeong

In July Boryeong generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

June
July
August
Max temperature
26°C (79°F)
28°C (82°F)
30°C (86°F)
Min temperature
19°C (66°F)
23°C (73°F)
24°C (75°F)
Monthly sun hours
205 hours
148 hours
186 hours
Monthly rainfall
138 mm (5.4 in)
264 mm (10 in)
237 mm (9.3 in)
Monthly rainy days
10 days
15 days
12 days
Weather conditions

Asan

In July Asan generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

June
July
August
Max temperature
29°C (84°F)
31°C (88°F)
31°C (88°F)
Min temperature
18°C (64°F)
22°C (72°F)
23°C (73°F)
Monthly sun hours
222 hours
187 hours
209 hours
Monthly rainfall
134 mm (5.3 in)
254 mm (10 in)
238 mm (9.4 in)
Monthly rainy days
10 days
15 days
13 days
Weather conditions

Sancheong

In July Sancheong generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 21°C (70°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

June
July
August
Max temperature
27°C (81°F)
29°C (84°F)
30°C (86°F)
Min temperature
17°C (63°F)
21°C (70°F)
22°C (72°F)
Monthly rainfall
174 mm (6.9 in)
330 mm (13 in)
360 mm (14 in)
Monthly rainy days
10 days
14 days
14 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Chungcheongnam-Do, in South Korea.

In our records: South Korea July extremes

Notable July records observed across cities in South Korea in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest July day in South Korea reached 42°C (108°F) in Hadong on July 17, 1981.

Popular cities in July

Day & night temperatures, rainfall and average weather in Chungcheongnam-Do in July.

City Weather Day temp Night temp Rainfall
Cheonan 31°C (88°F) 22°C (72°F) 265 mm (10 in)
Buyeo 30°C (86°F) 23°C (73°F) 271 mm (11 in)
Boryeong 28°C (82°F) 23°C (73°F) 264 mm (10 in)
Asan 31°C (88°F) 22°C (72°F) 254 mm (10 in)
Sancheong 29°C (84°F) 21°C (70°F) 330 mm (13 in)

Chungcheongnam-Do weather in July: frequently asked questions

What is the weather like in Chungcheongnam-Do, South Korea in July?

Expect less favorable weather across Chungcheongnam-Do, South Korea in July. The popular destination of Cheonan averages 31°C (88°F) by day and 22°C (72°F) at night during this summer month.

What is the average temperature in Chungcheongnam-Do, South Korea in July?

Daytime temperatures in Cheonan peak at roughly 31°C (88°F) in July, dropping to about 22°C (72°F) overnight.

Does Chungcheongnam-Do, South Korea get a lot of rain in July?

Rainfall in Chungcheongnam-Do, South Korea peaks during July. Cheonan averages roughly 265 mm (10 in), so frequent and sometimes heavy showers are the norm.

Is July a Good Time to Visit Chungcheongnam-Do, South Korea?

Given the typically less favorable weather conditions in Cheonan, July may not be the ideal time to visit Chungcheongnam-Do, South Korea.

Generally speaking, April, May and October provide excellent weather in Cheonan. In contrast, January, February, July and August tend to have less favorable weather conditions.

Interested in more climate information?

We have much more information about the climate in Chungcheongnam-Do.

Weather and climate has detailed information for every country in the world. Are you going to South Korea? Get detailed historical weather averages for many cities in South Korea.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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