Seoul Weather

2026 (This Year)

Historical data
Average Temperature
20.1 °C
High
/
10.8 °C
Low
1024.3mm
Precipitation
38.6°C
Peak Temp
-14.8°C
Low Temp
282
Days Count

Seasonal Breakdown

Average temperatures and precipitation by season

Spring

92 days
18.7°C
Avg High
/
7.9°C
Avg Low
Precipitation
206.6mm

Summer

92 days
30.2°C
Avg High
/
22.3°C
Avg Low
Precipitation
749.2mm

Autumn

39 days
26.2°C
Avg High
/
16.7°C
Avg Low
Precipitation
50.4mm

Winter

59 days
2.3°C
Avg High
/
-6.7°C
Avg Low
Precipitation
18.1mm

Seasons based on meteorological calendar: Spring (Mar-May), Summer (Jun-Aug), Autumn (Sep-Nov), Winter (Dec-Feb)

Monthly Breakdown

Average temperatures and precipitation by month

January

31 days
-1.0°C / -9.3°C
Avg High / Low
Precipitation
14.7mm

February

28 days
5.8°C / -3.8°C
Avg High / Low
Precipitation
3.4mm

March

31 days
11.8°C / 1.5°C
Avg High / Low
Precipitation
41.5mm

April

30 days
19.7°C / 8.2°C
Avg High / Low
Precipitation
53.0mm

May

31 days
24.6°C / 14.2°C
Avg High / Low
Precipitation
112.1mm

June

30 days
29.3°C / 19.0°C
Avg High / Low
Precipitation
106.5mm

July

31 days
29.8°C / 23.4°C
Avg High / Low
Precipitation
405.8mm

August

31 days
31.6°C / 24.3°C
Avg High / Low
Precipitation
236.9mm

September

30 days
27.3°C / 18.0°C
Avg High / Low
Precipitation
45.2mm

October

9 days
22.6°C / 12.3°C
Avg High / Low
Precipitation
5.2mm

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

38.6°C
Thursday, August 6

Coolest Day

-7.3°C
Wednesday, January 21

Period Low

-14.8°C
Thursday, January 22

Compare with historical weather

Load the same period from the previous 15 years.

Weather Insights

Key findings from analysis for selected period

Extreme Temperature Variations

Worth noting

Temperature extremes from -14.8°C to 38.6°C. 62 cold days and 5 very hot days.

📅

Seasonal Weather Patterns

Info
Rainfall Patterns:
Wettest: July (406mm), August (237mm)
Driest: February (3mm), January (15mm)

Temperature Patterns (Monthly Averages):
Hottest months: August (31.6°C), July (29.8°C)
Coolest months: January (-1.0°C), February (5.8°C)

Travel Recommendations:
Best visiting months: October, April, May (optimal temperature and rainfall balance).
⚠️

51 Exceptional Weather Events (showing top 3)

Info

The 3 most extreme of 51 notable days in this period:

Aug 6 Heat

Hottest day: 38.6°C

Aug 7 Heat

Very hot day: 38.4°C

Aug 5 Heat

Very hot day: 37.5°C

27 Extreme Heat Index Days

Worth noting

27 days with dangerous heat index levels (46.4°C average). Temperature 33.0°C combined with 77% humidity creates hazardous conditions.

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Moderate Humidity Levels

Notable

Average humidity of 65% represents typical moderate moisture conditions. Generally comfortable range for most activities. Humidity varied significantly (29%-96% range).

📊

Highly Variable Humidity

Info

Large humidity swings (29%-96%) for a year. Conditions ranged from dry to very humid.

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Data Source

Weather data provided by Open-Meteo, offering reliable historical weather information from meteorological stations worldwide.

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