How many sunny days does Jeju City have per year?

Jeju City averages approximately 162 sunny days per year, based on historical climate data.

What is the air quality in Jeju City?

Jeju City has an annual PM2.5 concentration of 15.4 µg/m³, classified as "Moderate" by WHO standards. Above WHO targets. Some respiratory effects possible with prolonged exposure.

Jeju-do

Jeju City · South Korea

A city in South Korea.

Small city

76K

48 km²

19m

13:30 UTC+9

KRW

Explore on map →Climate twin →

Jeju City, South Korea is a 76K-resident city with 162 sunny days and 0 frost days annually and an annual PM2.5 of 15.4 µg/m³. A city in South Korea.

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Climate

Feels-like °C

Dinner outside

Climate Lab·Jeju City

Monthly climate metrics across temperature, precipitation, wind, and UV.

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Metric	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Temperature
Daily high°C	12	14	16	17	21	24	28	29	26	22	19	11	20
Daily mean°C	7	9	11	15	18	22	27	28	24	19	14	8	17
Daily low°C	4	4	7	11	15	20	24	26	23	15	10	4	14
Thermal comfort
High feelsDaily high feels-like°C	11	13	20	22	27	31	33	35	30	25	21	11	23
Mean feelsDaily mean feels-like°C	0	3	8	14	20	25	28	31	25	18	10	1	15
Low feelsDaily low feels-like°C	-13	-12	-2	3	11	18	24	25	19	7	-3	-12	6
Humidity
HumidityRelative humidity%	67	69	68	74	80	86	86	82	80	69	68	64	74
Dewpoint°C	0.5	2.6	5.9	9.2	14.4	19.2	23.9	24.9	21.1	12.5	7.2	1.8	11.9
Precipitation
Rainfallmm	75	59	118	81	71	195	255	106	273	47	60	33	1372
Rain days≥1mm	12	11	12	9	10	11	15	21	15	7	9	8	140
Snowfallmm	5	0	0	0	0	0	0	0	0	0	0	1	5
Snow days≥1mm	1	0	0	0	0	0	0	0	0	0	0	0	1
Wind
Wind avgm/s	5.2	5.6	4.5	4.1	3.5	2.8	3.9	3.6	4.4	4.9	4.8	5.5	4.4
Wind gustsm/s	11.2	9.7	9.6	9.1	8.0	7.8	8.4	8.0	10.7	9.6	10.0	10.6	9.4
Sun & UV
Sunshinehrs/day	5.0	7.5	8.8	9.7	9.7	9.4	8.6	9.3	7.6	8.5	6.5	5.9	8.0
Clear skyindex	27%	35%	47%	50%	47%	33%	29%	44%	41%	55%	52%	34%	41%
UV indexmax avg	1.9	3.0	4.7	6.5	7.0	6.8	7.0	8.6	6.2	4.9	2.7	1.8	5.1

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Lifestyle Calendar·Jeju City

Jeju City offers a solid outdoor season. July through August are the toughest stretch. Dinner outside works 4/12 months, while walking is comfortable 10/12 months — impressive.

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Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Annual

4/12

Dinner Outside

25Jan: 25% viability

28Feb: 28% viability

38Mar: 38% viability

57Apr: 57% viability

83May: 83% viability

83Jun: 83% viability

52Jul: 52% viability

46Aug: 46% viability

71Sep: 71% viability

72Oct: 72% viability

44Nov: 44% viability

26Dec: 26% viability

4/12

Dinner Outside

25Jan: 25% viability

28Feb: 28% viability

38Mar: 38% viability

57Apr: 57% viability

83May: 83% viability

83Jun: 83% viability

52Jul: 52% viability

46Aug: 46% viability

71Sep: 71% viability

72Oct: 72% viability

44Nov: 44% viability

26Dec: 26% viability

52%

Cold

1/12

Lunch Outside

44Jan: 44% viability

48Feb: 48% viability

56Mar: 56% viability

63Apr: 63% viability

65May: 65% viability

51Jun: 51% viability

18Jul: 18% viability

17Aug: 17% viability

40Sep: 40% viability

58Oct: 58% viability

52Nov: 52% viability

48Dec: 48% viability

1/12

Lunch Outside

44Jan: 44% viability

48Feb: 48% viability

56Mar: 56% viability

63Apr: 63% viability

65May: 65% viability

51Jun: 51% viability

18Jul: 18% viability

17Aug: 17% viability

40Sep: 40% viability

58Oct: 58% viability

52Nov: 52% viability

48Dec: 48% viability

47%

Wind

10/12

Walking

76Jan: 76% viability

77Feb: 77% viability

84Mar: 84% viability

89Apr: 89% viability

92May: 92% viability

88Jun: 88% viability

59Jul: 59% viability

36Aug: 36% viability

68Sep: 68% viability

82Oct: 82% viability

77Nov: 77% viability

74Dec: 74% viability

10/12

Walking

76Jan: 76% viability

77Feb: 77% viability

84Mar: 84% viability

89Apr: 89% viability

92May: 92% viability

88Jun: 88% viability

59Jul: 59% viability

36Aug: 36% viability

68Sep: 68% viability

82Oct: 82% viability

77Nov: 77% viability

74Dec: 74% viability

75%

Humid

9/12

Running

76Jan: 76% viability

77Feb: 77% viability

84Mar: 84% viability

89Apr: 89% viability

92May: 92% viability

73Jun: 73% viability

39Jul: 39% viability

17Aug: 17% viability

56Sep: 56% viability

80Oct: 80% viability

77Nov: 77% viability

74Dec: 74% viability

9/12

Running

76Jan: 76% viability

77Feb: 77% viability

84Mar: 84% viability

89Apr: 89% viability

92May: 92% viability

73Jun: 73% viability

39Jul: 39% viability

17Aug: 17% viability

56Sep: 56% viability

80Oct: 80% viability

77Nov: 77% viability

74Dec: 74% viability

70%

Humid

Tap any month for details · Click activity name for overview

ComfortableModerateUncomfortable

Based on 2014–2024 hourly climate data · Updated Mar 2025

Confidence: High

Jeju City · South Korea

Climate

Climate Lab·Jeju City

Lifestyle Calendar·Jeju City

Air Quality Profile

Air Quality Profile

Who thrives in Jeju City

Things to consider in Jeju City

Why not Jeju City?

Frequently asked about Jeju City

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