Yearly weather

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

Weather Score #

Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.

Perfect for sun worshippers, beach lovers, and those seeking warm, dry climates for outdoor activities and relaxation.

Formula optimized for hot weather enthusiasts who prefer temperatures above 25°C (77°F) with maximum sun exposure and minimal precipitation.

Key factors in the calculation:

High temperatures: Favors locations with warm to hot daily highs
Abundant sunshine: Rewards areas with maximum daylight hours
Low precipitation: Penalizes frequent rain and wet conditions
Warm nights: Considers comfortable evening temperatures

Temperatures #

The cities generally experience similar temperature patterns throughout the year, with the coldest months being January and December and the warmest being July and August
Busan and Ulsan have the mildest winters
Daegu stands out with the some of the highest maximum temperatures in July and August, entering discomfort territory
Goyang, Seoul and Daejeon have the coldest temperatures during winter.

Maximum Temperatures

Period	Seoul	Busan	Incheon	Daegu	Gwangju	Daejeon	Suwon	Ulsan	Tongjin	Goyang
Jan	2.0°C	7.3°C	2.3°C	5.2°C	5.1°C	3.3°C	2.3°C	6.2°C	2.3°C	2.0°C
Feb	4.8°C	8.9°C	4.2°C	7.6°C	7.5°C	5.7°C	5.0°C	8.0°C	5.0°C	4.8°C
Mar	12.1°C	13.0°C	9.8°C	14.1°C	13.6°C	12.8°C	12.1°C	13.3°C	12.1°C	12.0°C
Apr	18.0°C	16.8°C	15.3°C	19.6°C	19.0°C	18.8°C	18.0°C	18.0°C	18.0°C	17.9°C
May	23.4°C	20.4°C	20.1°C	24.7°C	23.7°C	23.8°C	23.2°C	22.4°C	23.2°C	23.2°C
Jun	27.8°C	23.7°C	24.1°C	28.6°C	27.6°C	28.1°C	27.4°C	25.5°C	27.4°C	27.6°C
Jul	29.9°C	26.8°C	27.8°C	30.2°C	29.4°C	29.5°C	29.7°C	28.4°C	29.7°C	29.9°C
Aug	30.4°C	28.7°C	28.8°C	31.0°C	30.7°C	30.1°C	30.2°C	29.6°C	30.2°C	30.4°C
Sep	26.6°C	25.4°C	25.8°C	26.0°C	26.5°C	25.7°C	26.5°C	25.2°C	26.5°C	26.6°C
Oct	20.0°C	20.8°C	19.5°C	20.3°C	20.5°C	19.1°C	20.0°C	20.2°C	20.0°C	20.0°C
Nov	12.4°C	15.7°C	12.5°C	14.3°C	14.3°C	12.7°C	12.8°C	14.9°C	12.8°C	12.4°C
Dec	3.3°C	8.6°C	4.2°C	6.1°C	6.3°C	4.3°C	3.8°C	7.2°C	3.8°C	3.3°C
Average	18.0°C	19.0°C	17.8°C	17.5°C	18.7°C	16.2°C	17.6°C	17.6°C	17.6°C	18.2°C

Minimum Temperatures

Period	Seoul	Busan	Incheon	Daegu	Gwangju	Daejeon	Suwon	Ulsan	Tongjin	Goyang
Jan	-4.2°C	1.8°C	-3.3°C	-2.9°C	-2.9°C	-4.0°C	-3.6°C	-1.2°C	-3.6°C	-4.2°C
Feb	-2.4°C	3.1°C	-1.5°C	-1.5°C	-1.5°C	-2.6°C	-2.0°C	0.2°C	-2.0°C	-2.3°C
Mar	3.5°C	7.4°C	4.3°C	3.4°C	2.7°C	2.2°C	3.6°C	4.9°C	3.6°C	3.6°C
Apr	8.9°C	11.2°C	9.6°C	8.1°C	7.5°C	7.1°C	8.9°C	9.2°C	8.9°C	8.9°C
May	13.6°C	14.8°C	14.3°C	12.7°C	12.0°C	11.4°C	13.6°C	13.3°C	13.6°C	13.6°C
Jun	18.9°C	18.9°C	19.3°C	17.6°C	17.1°C	16.3°C	18.7°C	17.8°C	18.7°C	18.9°C
Jul	23.2°C	22.9°C	23.5°C	22.0°C	21.4°C	20.7°C	23.0°C	22.3°C	23.0°C	23.2°C
Aug	23.7°C	24.9°C	24.5°C	22.7°C	21.9°C	21.2°C	23.5°C	23.6°C	23.5°C	23.7°C
Sep	19.2°C	21.3°C	20.6°C	17.9°C	17.3°C	16.5°C	19.2°C	19.5°C	19.2°C	19.3°C
Oct	12.3°C	15.6°C	13.7°C	11.2°C	10.5°C	9.8°C	12.6°C	13.3°C	12.6°C	12.5°C
Nov	5.1°C	10.0°C	6.6°C	5.2°C	4.8°C	4.1°C	5.6°C	7.1°C	5.6°C	5.1°C
Dec	-2.9°C	3.2°C	-1.4°C	-1.7°C	-1.4°C	-2.7°C	-2.3°C	0.1°C	-2.3°C	-2.8°C
Average	12.9°C	9.6°C	8.3°C	10.0°C	9.1°C	10.9°C	9.9°C	10.1°C	10.1°C	10.8°C

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

Conditions #

In reviewing the weather conditions across the cities, Daegu consistently has strong sun hours from January to May, peaking at 8.0 hours in May, while suffering from the highest precipitation in July and August.
Goyang stands out with the highest recorded sun hours of 8.6 in May, yet also experiences significant rainfall, particularly in July.
Conversely, Gwangju and Daejeon show lower sun hours throughout the year, especially in the winter months, and both cities deal with increasing precipitation during the summer months.
Overall, the trend indicates that southern cities like Busan and Ulsan tend to have more moderate rain during summer while maintaining a decent amount of sunshine compared to northern cities like Seoul and Incheon.

Sunny Weather

Period	Seoul	Busan	Incheon	Daegu	Gwangju	Daejeon	Suwon	Ulsan	Tongjin	Goyang
Jan	5.6 hours/day	6.3 hours/day	5.2 hours/day	6.0 hours/day	4.1 hours/day	4.3 hours/day	5.1 hours/day	6.5 hours/day	5.1 hours/day	5.6 hours/day
Feb	6.3 hours/day	5.9 hours/day	6.2 hours/day	5.7 hours/day	4.9 hours/day	5.4 hours/day	5.9 hours/day	6.1 hours/day	5.9 hours/day	6.3 hours/day
Mar	6.8 hours/day	6.2 hours/day	6.9 hours/day	6.3 hours/day	6.4 hours/day	6.4 hours/day	6.6 hours/day	5.9 hours/day	6.6 hours/day	6.8 hours/day
Apr	7.8 hours/day	7.4 hours/day	7.9 hours/day	7.4 hours/day	7.3 hours/day	7.6 hours/day	7.5 hours/day	7.4 hours/day	7.5 hours/day	7.8 hours/day
May	8.5 hours/day	7.8 hours/day	8.6 hours/day	7.8 hours/day	7.3 hours/day	8.0 hours/day	8.2 hours/day	7.9 hours/day	8.2 hours/day	8.6 hours/day
Jun	7.7 hours/day	7.2 hours/day	8.3 hours/day	6.5 hours/day	6.7 hours/day	6.9 hours/day	7.8 hours/day	7.0 hours/day	7.8 hours/day	7.8 hours/day
Jul	3.9 hours/day	4.8 hours/day	5.1 hours/day	3.4 hours/day	3.5 hours/day	3.5 hours/day	4.2 hours/day	4.5 hours/day	4.2 hours/day	3.9 hours/day
Aug	4.1 hours/day	5.7 hours/day	5.2 hours/day	3.9 hours/day	4.2 hours/day	4.0 hours/day	4.6 hours/day	5.1 hours/day	4.6 hours/day	4.1 hours/day
Sep	5.8 hours/day	4.3 hours/day	6.1 hours/day	4.1 hours/day	4.6 hours/day	5.1 hours/day	5.6 hours/day	3.7 hours/day	5.6 hours/day	5.8 hours/day
Oct	6.5 hours/day	6.0 hours/day	6.6 hours/day	5.9 hours/day	6.2 hours/day	6.2 hours/day	6.2 hours/day	5.3 hours/day	6.2 hours/day	6.5 hours/day
Nov	5.6 hours/day	6.6 hours/day	5.4 hours/day	6.1 hours/day	5.6 hours/day	5.3 hours/day	5.2 hours/day	6.3 hours/day	5.2 hours/day	5.6 hours/day
Dec	5.4 hours/day	6.6 hours/day	5.0 hours/day	5.9 hours/day	3.8 hours/day	4.2 hours/day	4.6 hours/day	6.6 hours/day	4.6 hours/day	5.4 hours/day
Average	6.2 hours/day	5.8 hours/day	5.6 hours/day	6.2 hours/day	5.4 hours/day	6.4 hours/day	6.2 hours/day	6.0 hours/day	6.0 hours/day	6.0 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	Daegu	Gwangju	Daejeon	Suwon	Ulsan	Tongjin	Goyang
Jan	1.0mm	1.3mm	0.8mm	0.9mm	1.1mm	1.0mm	1.0mm	1.3mm	1.0mm	1.0mm
Feb	0.9mm	1.8mm	0.8mm	1.3mm	1.3mm	1.5mm	0.9mm	2.2mm	0.9mm	0.9mm
Mar	1.6mm	3.0mm	1.4mm	2.2mm	2.1mm	2.3mm	1.5mm	3.3mm	1.5mm	1.6mm
Apr	2.2mm	3.9mm	2.2mm	2.6mm	2.3mm	2.8mm	2.3mm	4.3mm	2.3mm	2.2mm
May	4.5mm	3.7mm	4.3mm	2.7mm	3.5mm	3.2mm	4.1mm	3.9mm	4.1mm	4.4mm
Jun	4.6mm	7.1mm	4.5mm	5.0mm	5.8mm	3.9mm	4.2mm	6.7mm	4.2mm	4.6mm
Jul	11.1mm	8.2mm	10.9mm	8.6mm	10.4mm	11.0mm	10.9mm	8.2mm	10.9mm	11.2mm
Aug	10.9mm	7.2mm	10.8mm	7.5mm	7.0mm	9.1mm	10.5mm	7.3mm	10.5mm	10.9mm
Sep	5.5mm	9.0mm	5.8mm	7.1mm	6.0mm	6.3mm	5.7mm	9.0mm	5.7mm	5.4mm
Oct	2.3mm	3.4mm	2.2mm	2.6mm	2.5mm	2.2mm	2.2mm	3.4mm	2.2mm	2.3mm
Nov	2.4mm	1.4mm	2.3mm	1.3mm	1.7mm	1.7mm	2.4mm	1.6mm	2.4mm	2.4mm
Dec	0.7mm	0.8mm	0.8mm	0.7mm	0.8mm	1.1mm	0.9mm	0.9mm	0.9mm	0.7mm
Average	4.2mm	3.5mm	3.8mm	4.0mm	3.7mm	3.9mm	4.0mm	3.9mm	3.9mm	4.3mm

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

Wind Speed

Period	Seoul	Busan	Incheon	Daegu	Gwangju	Daejeon	Suwon	Ulsan	Tongjin	Goyang
Jan	13.1km/h	22.1km/h	21.2km/h	13.1km/h	15.3km/h	13.9km/h	14.0km/h	17.9km/h	14.0km/h	13.4km/h
Feb	15.0km/h	22.9km/h	21.6km/h	13.8km/h	16.5km/h	15.1km/h	15.5km/h	18.3km/h	15.5km/h	15.2km/h
Mar	16.5km/h	23.8km/h	21.6km/h	13.8km/h	16.6km/h	16.1km/h	16.9km/h	19.4km/h	16.9km/h	16.7km/h
Apr	17.7km/h	22.6km/h	21.2km/h	14.3km/h	17.0km/h	16.5km/h	17.8km/h	19.4km/h	17.8km/h	17.8km/h
May	17.4km/h	21.3km/h	20.7km/h	13.6km/h	16.3km/h	15.8km/h	17.3km/h	17.8km/h	17.3km/h	17.5km/h
Jun	15.5km/h	19.5km/h	18.7km/h	11.2km/h	14.0km/h	13.2km/h	15.6km/h	16.0km/h	15.6km/h	15.6km/h
Jul	14.5km/h	19.5km/h	18.2km/h	10.8km/h	13.5km/h	12.3km/h	14.4km/h	16.5km/h	14.4km/h	14.7km/h
Aug	13.9km/h	21.2km/h	18.2km/h	10.6km/h	12.7km/h	12.1km/h	13.9km/h	17.1km/h	13.9km/h	14.1km/h
Sep	13.2km/h	23.2km/h	18.4km/h	10.7km/h	11.7km/h	12.8km/h	13.6km/h	18.5km/h	13.6km/h	13.4km/h
Oct	13.5km/h	22.2km/h	19.6km/h	10.8km/h	12.2km/h	12.6km/h	13.7km/h	17.4km/h	13.7km/h	13.7km/h
Nov	14.4km/h	21.4km/h	22.2km/h	11.7km/h	14.9km/h	12.8km/h	15.0km/h	16.5km/h	15.0km/h	14.8km/h
Dec	14.1km/h	22.3km/h	22.7km/h	13.3km/h	15.3km/h	13.3km/h	14.9km/h	17.6km/h	14.9km/h	14.4km/h
Average	21.8km/h	12.3km/h	13.9km/h	15.1km/h	14.7km/h	20.4km/h	14.9km/h	15.2km/h	15.2km/h	17.7km/h

Humidity

Period	Seoul	Busan	Incheon	Daegu	Gwangju	Daejeon	Suwon	Ulsan	Tongjin	Goyang
Jan	49.7%	54.1%	56.9%	58.1%	68.4%	65.9%	51.9%	55.5%	51.9%	49.8%
Feb	49.5%	55.3%	57.6%	57.2%	64.3%	62.3%	51.5%	56.7%	51.5%	49.7%
Mar	48.0%	61.2%	59.8%	59.1%	62.2%	60.5%	50.5%	61.3%	50.5%	48.4%
Apr	47.2%	65.1%	62.5%	58.8%	61.4%	59.9%	50.2%	63.3%	50.2%	47.7%
May	54.1%	71.5%	68.8%	63.7%	66.6%	66.3%	57.1%	68.5%	57.1%	54.5%
Jun	59.8%	79.0%	74.1%	70.6%	72.0%	72.2%	63.1%	77.0%	63.1%	60.2%
Jul	70.3%	85.6%	80.9%	80.3%	83.1%	82.5%	74.8%	83.7%	74.8%	70.5%
Aug	67.7%	80.3%	76.2%	78.3%	81.4%	81.2%	72.9%	80.7%	72.9%	67.7%
Sep	60.0%	75.5%	66.0%	78.0%	78.8%	78.3%	65.3%	79.0%	65.3%	59.9%
Oct	50.9%	63.9%	56.5%	68.6%	69.9%	70.2%	54.2%	68.0%	54.2%	51.1%
Nov	48.7%	57.7%	55.3%	62.7%	65.1%	66.1%	50.9%	60.9%	50.9%	49.0%
Dec	51.5%	54.9%	58.2%	59.6%	69.0%	68.2%	54.4%	56.0%	54.4%	51.6%
Average	67.0%	66.3%	69.5%	55.0%	70.2%	64.4%	54.8%	58.1%	58.1%	67.6%

Daylight Hours #

In the summer months, cities like Ulsan and Daegu experience the earliest sunrises around 05:07 and 05:09 respectively, while the latest sunrises occur in January, with Incheon reaching as late as 07:45. The longest days also occur in June, with Goyang having the longest day length at 14 hours and 42 minutes, slightly more than other cities.
Interestingly, Seoul and Incheon have some of the latest sunsets in June at 19:54 and 19:55, while the shortest day lengths in December tend to be around 09 hours and 37 minutes for cities like Goyang and Seoul. Overall, there is a consistent pattern of longer days and earlier sunrises during the summer months, while winter brings shorter days and later sunrises across these South Korean cities.

Sunrise Time

Period	Seoul	Busan	Incheon	Daegu	Gwangju	Daejeon	Suwon	Ulsan	Tongjin	Goyang
Jan	7:44	7:31	7:46	7:34	7:40	7:40	7:44	7:31	7:43	7:44
Feb	7:22	7:10	7:23	7:13	7:19	7:19	7:21	7:10	7:20	7:22
Mar	6:42	6:33	6:43	6:35	6:42	6:40	6:42	6:32	6:41	6:42
Apr	5:58	5:52	5:59	5:53	6:00	5:58	5:58	5:50	5:57	5:58
May	5:23	5:20	5:25	5:21	5:29	5:25	5:24	5:19	5:23	5:23
Jun	5:11	5:10	5:13	5:10	5:18	5:13	5:12	5:08	5:11	5:11
Jul	5:24	5:22	5:26	5:22	5:30	5:26	5:25	5:20	5:24	5:24
Aug	5:49	5:44	5:50	5:45	5:52	5:49	5:49	5:43	5:49	5:49
Sep	6:14	6:07	6:16	6:08	6:15	6:13	6:14	6:05	6:13	6:14
Oct	6:41	6:31	6:42	6:33	6:39	6:38	6:40	6:29	6:40	6:41
Nov	7:12	6:59	7:13	7:02	7:08	7:08	7:11	6:58	7:10	7:12
Dec	7:39	7:25	7:40	7:28	7:34	7:34	7:38	7:25	7:38	7:40
Average	6:18	6:18	6:24	6:24	6:30	6:30	6:24	6:24	6:24	6:18

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

Sunset Time

Period	Seoul	Busan	Incheon	Daegu	Gwangju	Daejeon	Suwon	Ulsan	Tongjin	Goyang
Jan	17:38	17:36	17:40	17:36	17:44	17:40	17:39	17:34	17:38	17:38
Feb	18:10	18:05	18:12	18:07	18:14	18:11	18:11	18:04	18:10	18:10
Mar	18:40	18:31	18:41	18:34	18:40	18:38	18:40	18:31	18:39	18:40
Apr	19:08	18:56	19:09	18:59	19:05	19:05	19:07	18:56	19:07	19:08
May	19:35	19:21	19:36	19:25	19:31	19:31	19:34	19:21	19:34	19:35
Jun	19:54	19:39	19:55	19:43	19:49	19:49	19:53	19:40	19:53	19:54
Jul	19:52	19:37	19:53	19:41	19:47	19:47	19:51	19:37	19:50	19:52
Aug	19:23	19:11	19:25	19:14	19:20	19:20	19:23	19:11	19:22	19:23
Sep	18:40	18:30	18:41	18:32	18:39	18:37	18:39	18:29	18:38	18:40
Oct	17:55	17:49	17:56	17:50	17:57	17:54	17:55	17:47	17:54	17:55
Nov	17:22	17:19	17:24	17:20	17:27	17:23	17:23	17:17	17:22	17:22
Dec	17:17	17:14	17:18	17:15	17:23	17:18	17:17	17:13	17:17	17:17
Average	18:30	18:30	18:36	18:36	18:36	18:42	18:36	18:36	18:36	18:30

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

Useful Day Length

Period	Seoul	Busan	Incheon	Daegu	Gwangju	Daejeon	Suwon	Ulsan	Tongjin	Goyang
Jan	9:54 hours	10:05 hours	9:55 hours	10:02 hours	10:04 hours	10:00 hours	9:55 hours	10:04 hours	9:55 hours	9:54 hours
Feb	10:49 hours	10:55 hours	10:49 hours	10:54 hours	10:55 hours	10:52 hours	10:50 hours	10:55 hours	10:50 hours	10:49 hours
Mar	11:40 hours	11:31 hours	11:41 hours	11:34 hours	11:40 hours	11:38 hours	11:40 hours	11:31 hours	11:39 hours	11:40 hours
Apr	12:08 hours	11:56 hours	12:09 hours	11:59 hours	12:05 hours	12:05 hours	12:07 hours	11:56 hours	12:07 hours	12:08 hours
May	12:35 hours	12:21 hours	12:36 hours	12:25 hours	12:31 hours	12:31 hours	12:34 hours	12:21 hours	12:34 hours	12:35 hours
Jun	12:54 hours	12:39 hours	12:55 hours	12:43 hours	12:49 hours	12:49 hours	12:53 hours	12:40 hours	12:53 hours	12:54 hours
Jul	12:52 hours	12:37 hours	12:53 hours	12:41 hours	12:47 hours	12:47 hours	12:51 hours	12:37 hours	12:50 hours	12:52 hours
Aug	12:23 hours	12:11 hours	12:25 hours	12:14 hours	12:20 hours	12:20 hours	12:23 hours	12:11 hours	12:22 hours	12:23 hours
Sep	11:40 hours	11:30 hours	11:41 hours	11:32 hours	11:39 hours	11:37 hours	11:39 hours	11:29 hours	11:38 hours	11:40 hours
Oct	10:55 hours	10:49 hours	10:56 hours	10:50 hours	10:57 hours	10:54 hours	10:55 hours	10:47 hours	10:54 hours	10:55 hours
Nov	10:10 hours	10:19 hours	10:11 hours	10:18 hours	10:19 hours	10:16 hours	10:11 hours	10:17 hours	10:12 hours	10:10 hours
Dec	9:38 hours	9:50 hours	9:38 hours	9:47 hours	9:49 hours	9:44 hours	9:39 hours	9:48 hours	9:39 hours	9:37 hours
Average	11:24 hours	11:24 hours	11:30 hours	11:30 hours	11:30 hours	11:30 hours	11:30 hours	11:30 hours	11:30 hours	11:24 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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