October weather forecast
Incheon, South Korea

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Contents

October

Weather in October

October continues gently ushering the city back to its cool state, leaving behind the heat of mid-year. Light jackets and scarves begin to make appearances as residents adjust to the cooler climate. The quantity of rainfall continues its decline, and the autumn foliage creates a palette of hues across the city. The sea temperature too starts its descent, leading to a significant reduction in beach activities. With the gentle and agreeable weather, October reigns as a favorite month for many in Incheon.

Temperature

As Incheon enters October, the average high-temperature decreases from the a warm 25.5°C (77.9°F) of September to an enjoyable 19.7°C (67.5°F). In the month of October, the temperature generally rests at an average low of 11°C (51.8°F).

Humidity

In Incheon, the average relative humidity in October is 67.3%.

Rainfall

In October, the rain falls for 6.2 days. Throughout October, 53mm (2.09") of precipitation is accumulated. In Incheon, during the entire year, the rain falls for 101.9 days and collects up to 1235mm (48.62") of precipitation.

Sea temperature

In Incheon, the average seawater temperature in October is 18.5°C (65.3°F).
Note: Most people find swimming in 18.5°C (65.3°F) to be not enjoyable. The control of one's breathing becomes more challenging as the water temperature drops below 21°C (69.8°F).

Daylight

The average length of the day in October is 11h and 14min.
On the first day of the month, sunrise is at 06:28 and sunset at 18:16. On the last day of October, sunrise is at 06:57 and sunset at 17:36 KST.

Sunshine

In Incheon, the average sunshine in October is 6.8h.
Updated: Aug 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in October?
In Incheon, in October, the average high-temperature is 19.7°C (67.5°F), and the average low-temperature is 11°C (51.8°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is computed to be 35°C (95°F).
What is the average humidity in October?
In Incheon, the average relative humidity in October is 67.3%.
How many days does it rain in October?
In Incheon, in October, during 6.2 rainfall days, 53mm (2.09") of precipitation is typically accumulated.
What is the sea temperature in October?
In October, the average sea temperature is 18.5°C (65.3°F). For swimming, a surface water temperature of 18.5°C (65.3°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
What is the average length of the day in October?
In October, the average day length is 11h and 14min.
When are sunrise and sunset in October?
In October, on the first day of the month, sunrise is at 06:28 and sunset at 18:16. On the last day of the month, sunrise is at 06:57 and sunset at 17:36 KST.
How long on average sun shines in October?
In October, the average sunshine duration is 6.8h.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND
Sep
October
Nov
Average high temperature
25.5°C
19.7°C
11.8°C
Average low temperature
17.5°C
11°C
3.9°C
Average humidity
73.1%
67.3%
63.9%
Average rainfall
153.5mm
53.4mm
51mm
Average rainfall days
8.2
6.2
8.5
Average sea temperature
21.9°C
18.5°C
13.8°C
Average daylight
12h 2min
11h 1min
10h 1min
Average sunshine
6h 4min
6h 5min
5h 4min
Average temperature in October
Incheon, South Korea
  • Average high temperature in October: 19.7°C

The warmest month (with the highest average high temperature) is August (29°C).
The month with the lowest average high temperature is January (1.7°C).

  • Average low temperature in October: 11°C

The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (-5.4°C).

Average humidity in October
Incheon, South Korea
  • Average humidity in October: 67.3%

The month with the highest relative humidity is July (82.2%).
The month with the lowest relative humidity is January (61.5%).

Average rainfall in October
Incheon, South Korea
  • Average rainfall in October: 53.4mm

The wettest month (with the highest rainfall) is July (319.6mm).
The driest month (with the least rainfall) is December (19.3mm).

Average rainfall days in October
Incheon, South Korea
  • Average rainfall days in October: 6.2 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is February (5.3 days).

Average sea temperature in October
Incheon, South Korea
  • Average sea temperature in October: 18.5°C

The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (3.3°C).

Average daylight in October /
Average sunshine in October
Incheon, South Korea
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in October: 6h and 5min

The month with the most sunshine is May (Average sunshine: 7h and 30min).
The month with the least sunshine is July (Average sunshine: 5h and 6min).

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