Gwangmyeong Weather in September

September in Gwangmyeong typically sees daytime highs of 27°C (81°F) and nighttime lows of 18°C (64°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Gwangmyeong in September

Typically, you can expect about 9 days of rain this month, with 129 mm (5.1 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Gwangmyeong in September

In September, Gwangmyeong sees high temperatures, with highs of 27°C (81°F). Nights drop to around 18°C (64°F). This kind of day-to-night contrast is typical for this time of year. With lows of 18°C (64°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Gwangmyeong in September

The city usually sees around 182 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Gwangmyeong in September

September sees wind speeds averaging 2 m/s (4 knots). You'll typically experience pleasant light breezes that move leaves slightly and feel refreshing. As an average, expect variation from very calm days to periods with more apparent air movement.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May and October typically offer the best weather for Gwangmyeong.

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For a detailed overview over the year and the best time to visit South Korea, check out our Gwangmyeong's climate page.

Gwangmyeong Temperature in September

Min Temperature 18°C (64°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 29%  

Precipitation 129 mm (5.1 in)  

Rainy days 9 days  

Humidity 67% *  

Windspeed 2 m/s (4 knots) *  

Sunshine 182 hours *  

Percentage Sunshine 48% *  

* Data from: Seoul, South Korea (13 KM, 8 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Gwangmyeong typically drop from around 28°C (82°F) at the start of September to approximately 24°C (75°F) by the end. Nights are pleasant, with lows typically ranging from 13°C (55°F) to 20°C (68°F).

Average temperatures in September

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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 September

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Historical weather for Gwangmyeong in September

Browse day-by-day weather records for Gwangmyeong 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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Gwangmyeong historical weather extremes in September

According to our 49 years of weather records for Gwangmyeong, the following extremes were recorded between 1976 and 2025.

• On September 11, 2024, temperatures climbed to 35°C (95°F), marking the warmest September day on record.
• Gwangmyeong experienced its chilliest September day on September 26, 1987, reaching only 16°C (61°F).
• The lowest overnight temperature recorded in September was 4°C (39°F) (September 27, 1987).

What to Wear in Gwangmyeong in September

Warm temperatures in September make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Gwangmyeong in September

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

Swimming

7/10

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 South Korea, check out our Gwangmyeong's climate page.

More climate data for Gwangmyeong

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Gwangmyeong climate overview or explore weather in South Korea.