Chungcheongnam-Do Weather in September

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

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Cheonan Buyeo Boryeong Asan

Planning a journey to Chungcheongnam-Do, South Korea this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Chungcheongnam-Do in September

Chungcheongnam-Do, South Korea is a region in South Korea. September in Chungcheongnam-Do generally has warm temperatures, with precipitation levels ranging from high to heavy.

Temperatures

You can expect warm maximum daytime temperatures of around 27°C (81°F) and nighttime temperatures around 17°C (63°F) in Cheonan.

To explore the conditions in Chungcheongnam-Do, South Korea in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Asan with an average of 143 mm (5.6 in) to heavy rainfall in Sancheong with 210 mm (8.3 in).

Average sunshine

Plenty of sunshine can be expected in numerous places in September. Cheonan typically receives 197 hours of sunlight, making it ideal for those seeking sunny weather.

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)

January4°C (39°F) February7°C (45°F) March13°C (55°F) April20°C (68°F) May26°C (79°F) June29°C (84°F) This monthJuly31°C (88°F) August31°C (88°F) September27°C (81°F) October21°C (70°F) November14°C (57°F) December6°C (43°F)
Best Time to Visit Chungcheongnam-Do →

Best Places to Visit in Chungcheongnam-Do in September

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

Conditions Temperatures Precipitation
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 September for some of the most popular destinations in Chungcheongnam-Do, South Korea?

Temperature range in Chungcheongnam-Do (September)

Precipitation variation in Chungcheongnam-Do (September)

Cheonan

In September Cheonan generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 17°C (63°F) and high monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
31°C (88°F)
27°C (81°F)
21°C (70°F)
Min temperature
22°C (72°F)
17°C (63°F)
9°C (48°F)
Monthly sun hours
209 hours
197 hours
215 hours
Monthly rainfall
241 mm (9.5 in)
144 mm (5.7 in)
58 mm (2.3 in)
Monthly rainy days
13 days
8 days
7 days
Weather conditions
less favorable
very good
excellent
Climate in Cheonan →

Buyeo

In September Buyeo generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 18°C (64°F) and high monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
31°C (88°F)
27°C (81°F)
22°C (72°F)
Min temperature
23°C (73°F)
18°C (64°F)
10°C (50°F)
Monthly sun hours
155 hours
171 hours
193 hours
Monthly rainfall
242 mm (9.5 in)
157 mm (6.2 in)
59 mm (2.3 in)
Monthly rainy days
13 days
8 days
6 days
Weather conditions
less favorable
very good
excellent
Climate in Buyeo →

Boryeong

In September Boryeong generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 19°C (66°F) and high monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
26°C (79°F)
21°C (70°F)
Min temperature
24°C (75°F)
19°C (66°F)
13°C (55°F)
Monthly sun hours
186 hours
196 hours
209 hours
Monthly rainfall
237 mm (9.3 in)
153 mm (6 in)
59 mm (2.3 in)
Monthly rainy days
12 days
8 days
7 days
Weather conditions
less favorable
very good
excellent
Climate in Boryeong →

Asan

In September Asan generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 17°C (63°F) and high monthly rainfall. So on average the conditions are very good that month.

« August
September
October »
August
September
October
Max temperature
31°C (88°F)
27°C (81°F)
21°C (70°F)
Min temperature
23°C (73°F)
17°C (63°F)
10°C (50°F)
Monthly sun hours
209 hours
197 hours
215 hours
Monthly rainfall
238 mm (9.4 in)
143 mm (5.6 in)
57 mm (2.2 in)
Monthly rainy days
13 days
8 days
7 days
Weather conditions
less favorable
very good
excellent
Climate in Asan →

Sancheong

In September Sancheong generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 17°C (63°F) and heavy monthly rainfall. So on average the conditions are mixed that month.

« August
September
October »
August
September
October
Max temperature
30°C (86°F)
26°C (79°F)
20°C (68°F)
Min temperature
22°C (72°F)
17°C (63°F)
10°C (50°F)
Monthly rainfall
360 mm (14 in)
210 mm (8.3 in)
73 mm (2.9 in)
Monthly rainy days
14 days
9 days
5 days
Weather conditions
less favorable
mixed
excellent
Climate in Sancheong →

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

Popular cities in September

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

City Weather Day temp Night temp Rainfall
Cheonan 27°C (81°F) 17°C (63°F) 144 mm (5.7 in)
Buyeo 27°C (81°F) 18°C (64°F) 157 mm (6.2 in)
Boryeong 26°C (79°F) 19°C (66°F) 153 mm (6 in)
Asan 27°C (81°F) 17°C (63°F) 143 mm (5.6 in)
Sancheong 26°C (79°F) 17°C (63°F) 210 mm (8.3 in)

Chungcheongnam-Do weather in September: frequently asked questions

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

In September, Chungcheongnam-Do, South Korea generally has very good weather conditions. Cheonan sees daytime temperatures near 27°C (81°F), with nights cooling to roughly 17°C (63°F).

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

Daytime temperatures in Cheonan peak at roughly 27°C (81°F) in September, dropping to about 17°C (63°F) overnight.

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

Chungcheongnam-Do, South Korea sees substantial rainfall in September. Cheonan typically averages about 144 mm (5.7 in), a mix of wet and dry days, but bring an umbrella.

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

Given the typically very good weather conditions in Cheonan, September might be a good time to visit Chungcheongnam-Do, South Korea. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit Chungcheongnam-Do, South Korea is in April, May and October with generally excellent weather in Cheonan. On the other hand, the months of 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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