Autumn weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

Maximum Temperatures

Period	Seoul	Busan	Incheon	Goyang
Sep 1	81.5°F	79.5°F	80.4°F	81.5°F
Sep 8	82.4°F	79.3°F	80.4°F	82.4°F
Sep 15	79.7°F	77.4°F	78.3°F	79.7°F
Sep 22	77.0°F	75.4°F	75.6°F	77.2°F
Oct 1	72.0°F	73.2°F	71.1°F	72.0°F
Oct 8	69.8°F	71.1°F	68.7°F	69.8°F
Oct 15	66.7°F	68.2°F	66.0°F	66.7°F
Oct 22	64.6°F	66.6°F	63.9°F	64.6°F
Nov 1	61.9°F	65.3°F	61.2°F	61.9°F
Nov 8	57.0°F	62.1°F	57.0°F	57.0°F
Nov 15	53.2°F	59.4°F	53.4°F	53.2°F
Nov 22	47.5°F	55.8°F	48.2°F	47.5°F
Average	69.4°F	67.8°F	67.0°F	67.8°F

Minimum Temperatures

Period	Seoul	Busan	Incheon	Goyang
Sep 1	68.9°F	72.5°F	71.4°F	69.1°F
Sep 8	68.7°F	72.1°F	71.1°F	68.7°F
Sep 15	66.7°F	70.5°F	69.1°F	66.9°F
Sep 22	62.8°F	67.1°F	65.7°F	63.0°F
Oct 1	59.7°F	64.9°F	61.9°F	60.1°F
Oct 8	56.3°F	62.2°F	58.6°F	56.7°F
Oct 15	52.2°F	58.5°F	54.5°F	52.3°F
Oct 22	50.4°F	56.5°F	53.2°F	50.4°F
Nov 1	48.6°F	54.7°F	50.9°F	48.7°F
Nov 8	43.5°F	52.0°F	46.4°F	43.7°F
Nov 15	40.1°F	48.9°F	42.6°F	40.3°F
Nov 22	34.3°F	45.7°F	37.2°F	34.3°F
Average	60.5°F	54.5°F	56.9°F	54.4°F

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions

Sunny Weather

Period	Seoul	Busan	Incheon	Goyang
Sep 1	5.3 hours/day	3.4 hours/day	5.7 hours/day	5.3 hours/day
Sep 8	5.7 hours/day	4.3 hours/day	6.2 hours/day	5.8 hours/day
Sep 15	5.6 hours/day	3.7 hours/day	5.7 hours/day	5.6 hours/day
Sep 22	6.5 hours/day	5.5 hours/day	6.8 hours/day	6.4 hours/day
Oct 1	5.1 hours/day	5.3 hours/day	5.5 hours/day	5.1 hours/day
Oct 8	6.0 hours/day	6.4 hours/day	6.5 hours/day	6.2 hours/day
Oct 15	7.1 hours/day	5.9 hours/day	6.9 hours/day	7.1 hours/day
Oct 22	7.4 hours/day	6.4 hours/day	7.4 hours/day	7.4 hours/day
Nov 1	6.1 hours/day	7.5 hours/day	6.0 hours/day	6.1 hours/day
Nov 8	6.2 hours/day	6.8 hours/day	6.1 hours/day	6.2 hours/day
Nov 15	4.7 hours/day	6.5 hours/day	4.6 hours/day	4.7 hours/day
Nov 22	5.5 hours/day	5.7 hours/day	5.0 hours/day	5.5 hours/day
Average	5.6 hours/day	6.0 hours/day	6.0 hours/day	5.9 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Period	Seoul	Busan	Incheon	Goyang
Sep 1	0.6in	0.8in	0.6in	0.6in
Sep 8	0.1in	0.2in	0.1in	0.1in
Sep 15	0.2in	0.3in	0.2in	0.2in
Sep 22	0.1in	0.2in	0.1in	0.1in
Oct 1	0.3in	0.3in	0.2in	0.3in
Oct 8	0.0in	0.0in	0.0in	0.0in
Oct 15	0.0in	0.1in	0.0in	0.0in
Oct 22	0.0in	0.1in	0.0in	0.0in
Nov 1	0.1in	0.1in	0.1in	0.1in
Nov 8	0.1in	0.1in	0.1in	0.1in
Nov 15	0.1in	0.0in	0.1in	0.1in
Nov 22	0.1in	0.1in	0.1in	0.1in
Average	0.2in	0.1in	0.1in	0.1in

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Period	Seoul	Busan	Incheon	Goyang
Sep 1	9.1mph	16.3mph	12.9mph	9.2mph
Sep 8	7.8mph	12.9mph	10.5mph	7.9mph
Sep 15	8.3mph	15.1mph	11.8mph	8.4mph
Sep 22	7.9mph	13.9mph	11.1mph	8.0mph
Oct 1	9.1mph	14.4mph	13.6mph	9.5mph
Oct 8	8.2mph	14.3mph	11.6mph	8.4mph
Oct 15	8.1mph	14.1mph	11.9mph	8.2mph
Oct 22	8.3mph	13.0mph	12.0mph	8.4mph
Nov 1	8.7mph	11.9mph	12.8mph	9.0mph
Nov 8	8.9mph	13.6mph	13.3mph	9.1mph
Nov 15	8.7mph	12.9mph	13.5mph	8.9mph
Nov 22	9.6mph	14.7mph	15.4mph	9.9mph
Average	13.9mph	8.7mph	12.5mph	8.6mph

Humidity

Period	Seoul	Busan	Incheon	Goyang
Sep 1	63.7%	78.0%	69.8%	63.8%
Sep 8	61.4%	77.1%	68.0%	61.4%
Sep 15	61.3%	77.5%	67.0%	61.1%
Sep 22	55.1%	70.8%	60.6%	54.9%
Oct 1	56.7%	69.8%	61.4%	56.7%
Oct 8	51.1%	65.4%	56.4%	51.1%
Oct 15	46.7%	62.9%	52.9%	47.0%
Oct 22	49.8%	59.4%	55.8%	50.0%
Nov 1	51.1%	57.9%	57.3%	51.3%
Nov 8	48.8%	58.1%	55.3%	49.3%
Nov 15	48.4%	57.2%	55.2%	48.5%
Nov 22	47.0%	57.8%	53.9%	47.3%
Average	66.0%	53.5%	59.5%	53.4%

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Astronomy

Sunrise Time

Period	Seoul	Busan	Incheon	Goyang
Sep 1	6:04	5:58	6:06	6:04
Sep 8	6:10	6:03	6:11	6:10
Sep 15	6:16	6:08	6:17	6:16
Sep 22	6:23	6:14	6:24	6:23
Oct 1	6:29	6:20	6:31	6:30
Oct 8	6:36	6:26	6:37	6:36
Oct 15	6:43	6:32	6:44	6:43
Oct 22	6:51	6:40	6:52	6:51
Nov 1	7:00	6:47	7:01	7:00
Nov 8	7:07	6:54	7:08	7:07
Nov 15	7:14	7:01	7:16	7:15
Nov 22	7:23	7:09	7:24	7:23
Average	6:30	6:42	6:42	6:42

Sunrise times are output in the local timezone of each place.

Sunset Time

Period	Seoul	Busan	Incheon	Goyang
Sep 1	18:57	18:47	18:58	18:57
Sep 8	18:46	18:37	18:48	18:47
Sep 15	18:35	18:26	18:37	18:35
Sep 22	18:23	18:15	18:25	18:23
Oct 1	18:11	18:04	18:13	18:11
Oct 8	18:01	17:55	18:02	18:01
Oct 15	17:52	17:46	17:53	17:52
Oct 22	17:41	17:35	17:42	17:41
Nov 1	17:31	17:27	17:33	17:31
Nov 8	17:25	17:21	17:26	17:25
Nov 15	17:20	17:16	17:21	17:20
Nov 22	17:16	17:13	17:17	17:16
Average	17:54	18:00	18:00	18:00

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	Seoul	Busan	Incheon	Goyang
Sep 1	11:57 hours	11:47 hours	11:58 hours	11:57 hours
Sep 8	11:46 hours	11:37 hours	11:48 hours	11:47 hours
Sep 15	11:35 hours	11:26 hours	11:37 hours	11:35 hours
Sep 22	11:23 hours	11:15 hours	11:25 hours	11:23 hours
Oct 1	11:11 hours	11:04 hours	11:13 hours	11:11 hours
Oct 8	11:01 hours	10:55 hours	11:02 hours	11:01 hours
Oct 15	10:52 hours	10:46 hours	10:53 hours	10:52 hours
Oct 22	10:41 hours	10:35 hours	10:42 hours	10:41 hours
Nov 1	10:31 hours	10:27 hours	10:32 hours	10:31 hours
Nov 8	10:17 hours	10:21 hours	10:18 hours	10:17 hours
Nov 15	10:05 hours	10:15 hours	10:05 hours	10:05 hours
Nov 22	9:53 hours	10:04 hours	9:53 hours	9:52 hours
Average	10:54 hours	10:54 hours	11:00 hours	10:54 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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