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Lyon vs Seoul
Comparing Lyon change · Seoul change
Lyon and Seoul have nearly identical year-round temperatures; Seoul is the wetter, with 643 mm more rain a year.
How the seasons compare
The differences between Lyon and Seoul, in everyday terms.
Summers
Seoul has hotter summers
Lyon: Warm
Seoul: Warm
Winters
Lyon has much milder winters
Lyon: Chilly
Seoul: Cold
Rain & snow
Seoul is wetter
Lyon: Moderate rainfall
Seoul: Wet
Sky
Similar amounts of sun
Lyon: Partly cloudy
Seoul: Partly cloudy
Month-by-month charts
Temperature
Lyon and Seoul run remarkably close all year.
Precipitation
Seoul is the wetter — about 643 mm more across the year.
Clear skies
The two cities see a similar amount of sun.
Exact monthly numbers
Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.
Avg high (°C) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lyon | 7 | 8 | 13 | 17 | 21 | 25 | 27 | 27 | 23 | 17 | 11 | 7 |
| Seoul | 2 | 5 | 11 | 18 | 24 | 28 | 29 | 30 | 26 | 20 | 12 | 4 |
| Difference | -5 | -3 | -2 | +1 | +3 | +2 | +1 | +3 | +4 | +3 | +1 | -3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Lyon | 7 | 8 | 13 | 17 | 21 | 25 |
| Seoul | 2 | 5 | 11 | 18 | 24 | 28 |
| Difference | -5 | -3 | -2 | +1 | +3 | +2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Lyon | 27 | 27 | 23 | 17 | 11 | 7 |
| Seoul | 29 | 30 | 26 | 20 | 12 | 4 |
| Difference | +1 | +3 | +4 | +3 | +1 | -3 |
Avg low (°C) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lyon | 1 | 1 | 4 | 7 | 11 | 15 | 17 | 16 | 13 | 10 | 5 | 2 |
| Seoul | -6 | -4 | 1 | 7 | 13 | 18 | 22 | 23 | 17 | 10 | 3 | -4 |
| Difference | -7 | -5 | -3 | — | +2 | +4 | +5 | +6 | +4 | — | -2 | -6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Lyon | 1 | 1 | 4 | 7 | 11 | 15 |
| Seoul | -6 | -4 | 1 | 7 | 13 | 18 |
| Difference | -7 | -5 | -3 | — | +2 | +4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Lyon | 17 | 16 | 13 | 10 | 5 | 2 |
| Seoul | 22 | 23 | 17 | 10 | 3 | -4 |
| Difference | +5 | +6 | +4 | — | -2 | -6 |
Precipitation (mm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lyon | 55 | 47 | 54 | 72 | 83 | 71 | 67 | 71 | 87 | 101 | 92 | 63 |
| Seoul | 21 | 32 | 41 | 75 | 104 | 138 | 440 | 362 | 154 | 58 | 56 | 25 |
| Difference | -34 | -15 | -13 | +3 | +21 | +67 | +373 | +292 | +68 | -43 | -36 | -39 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Lyon | 55 | 47 | 54 | 72 | 83 | 71 |
| Seoul | 21 | 32 | 41 | 75 | 104 | 138 |
| Difference | -34 | -15 | -13 | +3 | +21 | +67 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Lyon | 67 | 71 | 87 | 101 | 92 | 63 |
| Seoul | 440 | 362 | 154 | 58 | 56 | 25 |
| Difference | +373 | +292 | +68 | -43 | -36 | -39 |
Cloud cover (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lyon | 66 | 64 | 62 | 63 | 66 | 58 | 50 | 51 | 55 | 65 | 70 | 68 |
| Seoul | 51 | 50 | 52 | 55 | 58 | 67 | 75 | 65 | 56 | 46 | 52 | 51 |
| Difference | -14 | -15 | -10 | -8 | -7 | +9 | +25 | +14 | — | -20 | -18 | -16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Lyon | 66 | 64 | 62 | 63 | 66 | 58 |
| Seoul | 51 | 50 | 52 | 55 | 58 | 67 |
| Difference | -14 | -15 | -10 | -8 | -7 | +9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Lyon | 50 | 51 | 55 | 65 | 70 | 68 |
| Seoul | 75 | 65 | 56 | 46 | 52 | 51 |
| Difference | +25 | +14 | — | -20 | -18 | -16 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lyon | 90 | 86 | 81 | 77 | 76 | 72 | 66 | 65 | 72 | 81 | 88 | 90 |
| Seoul | 76 | 74 | 74 | 74 | 75 | 78 | 85 | 84 | 79 | 75 | 76 | 77 |
| Difference | -14 | -12 | -7 | -3 | — | +6 | +18 | +19 | +8 | -6 | -12 | -14 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Lyon | 90 | 86 | 81 | 77 | 76 | 72 |
| Seoul | 76 | 74 | 74 | 74 | 75 | 78 |
| Difference | -14 | -12 | -7 | -3 | — | +6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Lyon | 66 | 65 | 72 | 81 | 88 | 90 |
| Seoul | 85 | 84 | 79 | 75 | 76 | 77 |
| Difference | +18 | +19 | +8 | -6 | -12 | -14 |
How both climates are changing
Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Lyon trends → · Seoul trends →
Methodology & sources
Lyon
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Lyon - ST Exupery, a weather station, about 18 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.
Seoul
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Seoul City, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.