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Köln vs Castries
Comparing Köln change · Castries change
Castries is the warmer of the two — about 30°F on the annual average; Castries is the wetter, with 46 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Köln and Castries, in everyday terms.
Summers
Castries has much hotter summers
Köln: Mild
Castries: Warm
Winters
Castries has far milder winters
Köln: Chilly
Castries: Stays warm
Rain & snow
Castries is much wetter
Köln: Moderate rainfall
Castries: Very wet
Sky
Castries is far sunnier
Köln: Often grey
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 30°F on the annual average.
Precipitation
Castries is the wetter — about 46 in more across the year.
Clear skies
Castries has the clearer skies — the higher line.
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 (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Köln | 43 | 45 | 53 | 61 | 67 | 73 | 77 | 76 | 69 | 59 | 50 | 44 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +38 | +35 | +28 | +21 | +15 | +10 | +7 | +8 | +15 | +24 | +33 | +38 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Köln | 43 | 45 | 53 | 61 | 67 | 73 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +38 | +35 | +28 | +21 | +15 | +10 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Köln | 77 | 76 | 69 | 59 | 50 | 44 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +7 | +8 | +15 | +24 | +33 | +38 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Köln | 32 | 32 | 36 | 40 | 46 | 52 | 56 | 55 | 50 | 44 | 38 | 34 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +46 | +45 | +42 | +39 | +34 | +29 | +25 | +27 | +32 | +37 | +42 | +46 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Köln | 32 | 32 | 36 | 40 | 46 | 52 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +46 | +45 | +42 | +39 | +34 | +29 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Köln | 56 | 55 | 50 | 44 | 38 | 34 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +25 | +27 | +32 | +37 | +42 | +46 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Köln | 2.4 | 2.1 | 2.2 | 1.9 | 2.4 | 3.4 | 3.4 | 3.3 | 2.6 | 2.5 | 2.5 | 2.7 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +2 | +0.9 | +0.4 | +1.6 | +2 | +1.9 | +5.1 | +8.2 | +6.2 | +7.2 | +7 | +3.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Köln | 2.4 | 2.1 | 2.2 | 1.9 | 2.4 | 3.4 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +2 | +0.9 | +0.4 | +1.6 | +2 | +1.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Köln | 3.4 | 3.3 | 2.6 | 2.5 | 2.5 | 2.7 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +5.1 | +8.2 | +6.2 | +7.2 | +7 | +3.2 |
Cloud cover (%) Köln runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Köln | 75 | 74 | 73 | 70 | 72 | 72 | 70 | 68 | 67 | 72 | 78 | 77 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -37 | -36 | -31 | -21 | -20 | -14 | -20 | -22 | -16 | -21 | -32 | -37 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Köln | 75 | 74 | 73 | 70 | 72 | 72 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -37 | -36 | -31 | -21 | -20 | -14 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Köln | 70 | 68 | 67 | 72 | 78 | 77 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -20 | -22 | -16 | -21 | -32 | -37 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Köln | 92 | 89 | 84 | 79 | 77 | 74 | 70 | 69 | 75 | 84 | 91 | 93 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -17 | -15 | -9 | -3 | +1 | +4 | +9 | +10 | +4 | -4 | -12 | -16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Köln | 92 | 89 | 84 | 79 | 77 | 74 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -17 | -15 | -9 | -3 | +1 | +4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Köln | 70 | 69 | 75 | 84 | 91 | 93 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +9 | +10 | +4 | -4 | -12 | -16 |
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. Köln trends → · Castries trends →
Both cities' Köppen climate types are projected to hold steady through 2099 (SSP2-4.5).
Methodology & sources
Köln
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Koln-bonn, a weather station, about 16 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.
Castries
Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.
Precipitation — 1991–2020 normals computed from 10 years of daily observations at LE Lamentin, a weather station, about 66 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.
← change Köln · change Castries → · Köln page · Castries page