Winter weather

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

Temperatures

Maximum Temperatures

Period	Seoul	Busan	Incheon	Goyang
Dec 1	41.5°F	50.4°F	43.3°F	41.7°F
Dec 8	40.3°F	49.6°F	41.5°F	40.5°F
Dec 15	35.6°F	45.3°F	37.6°F	35.8°F
Dec 22	35.1°F	45.5°F	36.9°F	35.2°F
Jan 1	34.7°F	45.0°F	35.8°F	34.7°F
Jan 8	34.2°F	44.6°F	34.9°F	34.3°F
Jan 15	37.0°F	46.2°F	37.4°F	37.0°F
Jan 22	36.0°F	45.0°F	36.1°F	36.1°F
Feb 1	35.4°F	44.8°F	35.6°F	35.4°F
Feb 8	41.4°F	48.0°F	40.3°F	41.4°F
Feb 15	39.9°F	47.8°F	38.5°F	39.7°F
Feb 22	45.5°F	50.5°F	43.5°F	45.5°F
Average	46.9°F	38.1°F	38.5°F	38.0°F

Minimum Temperatures

Period	Seoul	Busan	Incheon	Goyang
Dec 1	29.8°F	40.3°F	32.7°F	30.0°F
Dec 8	29.8°F	40.1°F	32.4°F	30.0°F
Dec 15	24.6°F	36.3°F	27.1°F	24.8°F
Dec 22	23.9°F	35.4°F	27.0°F	24.1°F
Jan 1	24.4°F	35.4°F	25.9°F	24.6°F
Jan 8	23.4°F	34.3°F	25.5°F	23.4°F
Jan 15	25.5°F	36.1°F	26.8°F	25.5°F
Jan 22	24.3°F	34.9°F	26.2°F	24.3°F
Feb 1	23.7°F	34.9°F	25.3°F	23.7°F
Feb 8	28.2°F	37.6°F	29.7°F	28.2°F
Feb 15	27.3°F	36.9°F	28.8°F	27.3°F
Feb 22	31.3°F	40.6°F	32.9°F	31.3°F
Average	36.9°F	26.4°F	28.4°F	26.4°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
Dec 1	5.4 hours/day	7.0 hours/day	4.9 hours/day	5.4 hours/day
Dec 8	5.0 hours/day	6.6 hours/day	4.9 hours/day	4.9 hours/day
Dec 15	4.8 hours/day	5.9 hours/day	4.2 hours/day	4.7 hours/day
Dec 22	6.1 hours/day	6.8 hours/day	5.6 hours/day	6.1 hours/day
Jan 1	6.4 hours/day	7.0 hours/day	6.0 hours/day	6.4 hours/day
Jan 8	5.4 hours/day	6.3 hours/day	4.8 hours/day	5.4 hours/day
Jan 15	5.4 hours/day	6.5 hours/day	4.9 hours/day	5.4 hours/day
Jan 22	5.4 hours/day	5.6 hours/day	5.1 hours/day	5.4 hours/day
Feb 1	5.9 hours/day	5.5 hours/day	5.6 hours/day	6.0 hours/day
Feb 8	6.6 hours/day	6.0 hours/day	6.5 hours/day	6.7 hours/day
Feb 15	6.5 hours/day	6.2 hours/day	6.7 hours/day	6.5 hours/day
Feb 22	6.0 hours/day	5.7 hours/day	6.1 hours/day	6.0 hours/day
Average	6.3 hours/day	5.7 hours/day	5.4 hours/day	5.7 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
Dec 1	0.0in	0.0in	0.0in	0.0in
Dec 8	0.0in	0.0in	0.0in	0.0in
Dec 15	0.0in	0.0in	0.0in	0.0in
Dec 22	0.0in	0.0in	0.0in	0.0in
Jan 1	0.1in	0.0in	0.1in	0.1in
Jan 8	0.0in	0.1in	0.0in	0.0in
Jan 15	0.0in	0.0in	0.0in	0.0in
Jan 22	0.0in	0.1in	0.0in	0.0in
Feb 1	0.0in	0.1in	0.0in	0.0in
Feb 8	0.0in	0.1in	0.0in	0.0in
Feb 15	0.1in	0.1in	0.1in	0.1in
Feb 22	0.0in	0.1in	0.0in	0.0in
Average	0.1in	0.0in	0.0in	0.0in

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

Wind Speed

Period	Seoul	Busan	Incheon	Goyang
Dec 1	9.4mph	13.4mph	14.8mph	9.6mph
Dec 8	8.8mph	14.2mph	13.9mph	9.0mph
Dec 15	8.9mph	14.1mph	14.3mph	9.1mph
Dec 22	8.3mph	13.9mph	13.9mph	8.5mph
Jan 1	7.6mph	13.1mph	12.6mph	7.7mph
Jan 8	8.1mph	14.2mph	13.4mph	8.4mph
Jan 15	7.7mph	12.9mph	12.6mph	7.9mph
Jan 22	9.1mph	14.7mph	14.0mph	9.3mph
Feb 1	10.1mph	15.3mph	14.8mph	10.3mph
Feb 8	7.9mph	12.6mph	11.5mph	7.9mph
Feb 15	10.7mph	15.6mph	15.4mph	10.9mph
Feb 22	8.8mph	13.8mph	12.4mph	9.0mph
Average	14.0mph	9.0mph	13.6mph	8.8mph

Humidity

Period	Seoul	Busan	Incheon	Goyang
Dec 1	47.1%	53.7%	55.3%	47.3%
Dec 8	48.6%	55.4%	57.4%	48.5%
Dec 15	52.9%	56.0%	58.4%	53.1%
Dec 22	55.6%	54.7%	60.6%	55.6%
Jan 1	48.0%	50.2%	54.7%	48.1%
Jan 8	53.5%	57.1%	59.9%	53.5%
Jan 15	49.1%	53.3%	55.2%	49.0%
Jan 22	48.7%	55.3%	57.4%	49.0%
Feb 1	49.6%	53.2%	57.2%	49.7%
Feb 8	49.8%	55.6%	58.6%	50.2%
Feb 15	49.1%	54.8%	57.1%	49.1%
Feb 22	49.6%	57.2%	57.5%	49.8%
Average	54.7%	50.2%	57.4%	50.1%

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Astronomy

Sunrise Time

Period	Seoul	Busan	Incheon	Goyang
Dec 1	7:31	7:16	7:32	7:31
Dec 8	7:37	7:22	7:38	7:37
Dec 15	7:41	7:26	7:43	7:41
Dec 22	7:46	7:31	7:47	7:46
Jan 1	7:47	7:33	7:49	7:47
Jan 8	7:47	7:33	7:48	7:47
Jan 15	7:45	7:31	7:46	7:45
Jan 22	7:40	7:27	7:41	7:40
Feb 1	7:34	7:21	7:35	7:34
Feb 8	7:27	7:15	7:28	7:27
Feb 15	7:19	7:07	7:20	7:19
Feb 22	7:10	6:59	7:11	7:10
Average	7:24	7:36	7:36	7:36

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

Sunset Time

Period	Seoul	Busan	Incheon	Goyang
Dec 1	17:14	17:12	17:16	17:14
Dec 8	17:14	17:12	17:16	17:14
Dec 15	17:16	17:14	17:17	17:16
Dec 22	17:20	17:19	17:22	17:20
Jan 1	17:27	17:25	17:28	17:27
Jan 8	17:33	17:31	17:35	17:33
Jan 15	17:40	17:38	17:42	17:40
Jan 22	17:49	17:46	17:51	17:49
Feb 1	17:59	17:55	18:00	17:59
Feb 8	18:06	18:02	18:08	18:07
Feb 15	18:14	18:08	18:16	18:14
Feb 22	18:21	18:15	18:23	18:21
Average	17:36	17:42	17:42	17:42

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

Useful Day Length

Period	Seoul	Busan	Incheon	Goyang
Dec 1	9:43 hours	9:56 hours	9:44 hours	9:43 hours
Dec 8	9:38 hours	9:50 hours	9:38 hours	9:38 hours
Dec 15	9:35 hours	9:48 hours	9:35 hours	9:35 hours
Dec 22	9:35 hours	9:48 hours	9:35 hours	9:35 hours
Jan 1	9:40 hours	9:52 hours	9:40 hours	9:40 hours
Jan 8	9:46 hours	9:58 hours	9:47 hours	9:46 hours
Jan 15	9:55 hours	10:07 hours	9:56 hours	9:55 hours
Jan 22	10:09 hours	10:19 hours	10:10 hours	10:09 hours
Feb 1	10:25 hours	10:34 hours	10:25 hours	10:25 hours
Feb 8	10:39 hours	10:47 hours	10:40 hours	10:40 hours
Feb 15	10:55 hours	11:01 hours	10:56 hours	10:55 hours
Feb 22	11:11 hours	11:15 hours	11:12 hours	11:11 hours
Average	10:18 hours	10:06 hours	10:06 hours	10:06 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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