Summer weather

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

Temperatures

Maximum Temperatures

Period	Seoul	Busan	Incheon	Goyang
Jun 1	79.7°F	73.2°F	72.7°F	79.3°F
Jun 8	82.0°F	73.2°F	74.8°F	81.5°F
Jun 15	83.1°F	75.7°F	75.7°F	82.8°F
Jun 22	83.1°F	75.9°F	77.4°F	82.9°F
Jul 1	84.7°F	77.7°F	80.6°F	84.6°F
Jul 8	83.7°F	77.9°F	80.1°F	83.5°F
Jul 15	86.0°F	80.6°F	82.2°F	85.8°F
Jul 22	88.2°F	83.1°F	84.6°F	88.0°F
Aug 1	90.3°F	86.0°F	86.2°F	90.1°F
Aug 8	87.8°F	84.2°F	84.6°F	87.6°F
Aug 15	87.4°F	83.1°F	84.6°F	87.4°F
Aug 22	83.1°F	82.4°F	81.3°F	83.1°F
Average	79.4°F	84.7°F	80.4°F	84.9°F

Minimum Temperatures

Period	Seoul	Busan	Incheon	Goyang
Jun 1	62.6°F	63.3°F	63.5°F	62.8°F
Jun 8	64.8°F	64.4°F	65.7°F	64.8°F
Jun 15	66.4°F	66.7°F	67.1°F	66.4°F
Jun 22	69.3°F	69.1°F	69.6°F	69.3°F
Jul 1	71.1°F	70.9°F	71.6°F	71.1°F
Jul 8	72.1°F	71.8°F	72.7°F	72.1°F
Jul 15	73.9°F	73.6°F	74.7°F	73.9°F
Jul 22	76.5°F	75.7°F	77.0°F	76.5°F
Aug 1	77.9°F	78.4°F	78.3°F	77.9°F
Aug 8	75.9°F	77.4°F	77.4°F	76.1°F
Aug 15	74.5°F	76.3°F	76.1°F	74.7°F
Aug 22	71.6°F	75.9°F	73.6°F	71.8°F
Average	72.0°F	71.5°F	72.3°F	71.4°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
Jun 1	9.5 hours/day	9.4 hours/day	9.7 hours/day	9.6 hours/day
Jun 8	8.0 hours/day	8.1 hours/day	8.5 hours/day	8.0 hours/day
Jun 15	8.5 hours/day	7.5 hours/day	8.8 hours/day	8.5 hours/day
Jun 22	5.5 hours/day	4.5 hours/day	6.8 hours/day	5.6 hours/day
Jul 1	5.6 hours/day	3.6 hours/day	6.6 hours/day	5.7 hours/day
Jul 8	2.3 hours/day	3.1 hours/day	3.7 hours/day	2.5 hours/day
Jul 15	4.1 hours/day	5.0 hours/day	5.6 hours/day	4.1 hours/day
Jul 22	3.5 hours/day	6.6 hours/day	4.8 hours/day	3.6 hours/day
Aug 1	4.7 hours/day	7.9 hours/day	6.7 hours/day	4.9 hours/day
Aug 8	3.1 hours/day	4.8 hours/day	4.3 hours/day	3.2 hours/day
Aug 15	4.0 hours/day	5.1 hours/day	5.6 hours/day	4.0 hours/day
Aug 22	4.4 hours/day	5.1 hours/day	4.5 hours/day	4.3 hours/day
Average	5.9 hours/day	5.3 hours/day	6.3 hours/day	5.3 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
Jun 1	0.1in	0.2in	0.1in	0.1in
Jun 8	0.1in	0.3in	0.1in	0.1in
Jun 15	0.1in	0.1in	0.1in	0.1in
Jun 22	0.4in	0.6in	0.4in	0.4in
Jul 1	0.4in	0.4in	0.4in	0.4in
Jul 8	0.5in	0.4in	0.5in	0.5in
Jul 15	0.4in	0.4in	0.4in	0.4in
Jul 22	0.4in	0.2in	0.4in	0.4in
Aug 1	0.4in	0.1in	0.4in	0.4in
Aug 8	0.6in	0.4in	0.6in	0.6in
Aug 15	0.4in	0.3in	0.4in	0.4in
Aug 22	0.4in	0.3in	0.4in	0.4in
Average	0.3in	0.4in	0.3in	0.4in

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

Wind Speed

Period	Seoul	Busan	Incheon	Goyang
Jun 1	10.4mph	12.1mph	12.1mph	10.4mph
Jun 8	9.3mph	11.9mph	11.5mph	9.3mph
Jun 15	9.7mph	11.6mph	11.0mph	9.7mph
Jun 22	9.6mph	12.8mph	12.1mph	9.7mph
Jul 1	9.6mph	13.1mph	12.2mph	9.8mph
Jul 8	8.9mph	12.4mph	10.8mph	9.0mph
Jul 15	9.1mph	11.9mph	11.6mph	9.3mph
Jul 22	8.8mph	11.5mph	11.1mph	8.9mph
Aug 1	8.6mph	12.3mph	10.8mph	8.7mph
Aug 8	8.4mph	13.9mph	11.0mph	8.6mph
Aug 15	8.6mph	12.8mph	11.6mph	8.9mph
Aug 22	8.9mph	13.7mph	11.8mph	9.1mph
Average	12.5mph	9.3mph	11.5mph	9.2mph

Humidity

Period	Seoul	Busan	Incheon	Goyang
Jun 1	55.4%	74.0%	70.9%	55.8%
Jun 8	57.3%	78.6%	71.8%	57.8%
Jun 15	58.4%	77.4%	73.7%	59.0%
Jun 22	66.2%	84.5%	78.5%	66.5%
Jul 1	68.0%	86.6%	79.8%	68.1%
Jul 8	74.7%	88.7%	83.5%	74.8%
Jul 15	70.8%	85.0%	81.0%	70.9%
Jul 22	68.7%	83.3%	79.8%	68.8%
Aug 1	67.0%	80.3%	79.0%	67.3%
Aug 8	69.9%	81.0%	77.9%	70.0%
Aug 15	66.5%	80.3%	75.2%	66.3%
Aug 22	67.3%	79.7%	73.7%	67.4%
Average	81.6%	66.1%	77.1%	65.9%

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Astronomy

Sunrise Time

Period	Seoul	Busan	Incheon	Goyang
Jun 1	5:12	5:10	5:13	5:12
Jun 8	5:10	5:09	5:12	5:10
Jun 15	5:11	5:09	5:12	5:11
Jun 22	5:13	5:11	5:14	5:13
Jul 1	5:16	5:14	5:17	5:16
Jul 8	5:20	5:18	5:22	5:20
Jul 15	5:25	5:23	5:26	5:25
Jul 22	5:31	5:29	5:33	5:32
Aug 1	5:38	5:35	5:40	5:38
Aug 8	5:44	5:40	5:46	5:44
Aug 15	5:50	5:46	5:52	5:50
Aug 22	5:58	5:52	5:59	5:58
Average	5:24	5:30	5:30	5:30

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

Sunset Time

Period	Seoul	Busan	Incheon	Goyang
Jun 1	19:50	19:35	19:50	19:50
Jun 8	19:53	19:38	19:55	19:53
Jun 15	19:56	19:41	19:57	19:56
Jun 22	19:57	19:42	19:59	19:57
Jul 1	19:57	19:42	19:58	19:57
Jul 8	19:55	19:40	19:56	19:55
Jul 15	19:52	19:37	19:53	19:52
Jul 22	19:46	19:32	19:47	19:46
Aug 1	19:38	19:25	19:39	19:38
Aug 8	19:30	19:17	19:31	19:30
Aug 15	19:22	19:10	19:23	19:22
Aug 22	19:10	18:59	19:11	19:10
Average	19:30	19:42	19:42	19:42

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

Useful Day Length

Period	Seoul	Busan	Incheon	Goyang
Jun 1	12:50 hours	12:35 hours	12:50 hours	12:50 hours
Jun 8	12:53 hours	12:38 hours	12:55 hours	12:53 hours
Jun 15	12:56 hours	12:41 hours	12:57 hours	12:56 hours
Jun 22	12:57 hours	12:42 hours	12:59 hours	12:57 hours
Jul 1	12:57 hours	12:42 hours	12:58 hours	12:57 hours
Jul 8	12:55 hours	12:40 hours	12:56 hours	12:55 hours
Jul 15	12:52 hours	12:37 hours	12:53 hours	12:52 hours
Jul 22	12:46 hours	12:32 hours	12:47 hours	12:46 hours
Aug 1	12:38 hours	12:25 hours	12:39 hours	12:38 hours
Aug 8	12:30 hours	12:17 hours	12:31 hours	12:30 hours
Aug 15	12:22 hours	12:10 hours	12:23 hours	12:22 hours
Aug 22	12:10 hours	11:59 hours	12:11 hours	12:10 hours
Average	12:30 hours	12:42 hours	12:42 hours	12:42 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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