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Zürich vs Castries
Comparing Zürich change · Castries change
Castries is the warmer of the two — about 17°C on the annual average; Castries is the wetter, with 854 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Zürich and Castries, in everyday terms.
Summers
Castries has much hotter summers
Zürich: Mild
Castries: Warm
Winters
Castries has far milder winters
Zürich: Cold
Castries: Stays warm
Rain & snow
Castries is wetter
Zürich: Wet
Castries: Very wet
Sky
Castries is sunnier
Zürich: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 17°C on the annual average.
Precipitation
Castries is the wetter — about 854 mm 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 (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zürich | 4 | 5 | 10 | 15 | 19 | 22 | 24 | 24 | 19 | 14 | 8 | 4 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +23 | +21 | +17 | +13 | +9 | +6 | +4 | +5 | +10 | +15 | +20 | +23 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Zürich | 4 | 5 | 10 | 15 | 19 | 22 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +23 | +21 | +17 | +13 | +9 | +6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Zürich | 24 | 24 | 19 | 14 | 8 | 4 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +4 | +5 | +10 | +15 | +20 | +23 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zürich | -1 | -1 | 2 | 5 | 9 | 13 | 14 | 14 | 11 | 7 | 3 | -0 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +27 | +26 | +23 | +21 | +18 | +15 | +13 | +13 | +17 | +20 | +25 | +27 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Zürich | -1 | -1 | 2 | 5 | 9 | 13 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +27 | +26 | +23 | +21 | +18 | +15 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Zürich | 14 | 14 | 11 | 7 | 3 | -0 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +13 | +13 | +17 | +20 | +25 | +27 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zürich | 63 | 60 | 71 | 80 | 128 | 128 | 126 | 119 | 87 | 85 | 76 | 83 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +50 | +15 | -5 | +9 | -14 | +6 | +90 | +172 | +137 | +161 | +166 | +66 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Zürich | 63 | 60 | 71 | 80 | 128 | 128 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | +50 | +15 | -5 | +9 | -14 | +6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Zürich | 126 | 119 | 87 | 85 | 76 | 83 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +90 | +172 | +137 | +161 | +166 | +66 |
Cloud cover (%) Zürich runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zürich | 69 | 69 | 68 | 67 | 69 | 65 | 60 | 60 | 62 | 68 | 72 | 72 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -31 | -31 | -26 | -18 | -17 | -7 | -11 | -13 | -11 | -17 | -26 | -32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Zürich | 69 | 69 | 68 | 67 | 69 | 65 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -31 | -31 | -26 | -18 | -17 | -7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Zürich | 60 | 60 | 62 | 68 | 72 | 72 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -11 | -13 | -11 | -17 | -26 | -32 |
Relative humidity (%) Zürich runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zürich | 88 | 85 | 82 | 79 | 79 | 78 | 78 | 79 | 82 | 85 | 88 | 88 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -12 | -11 | -7 | -3 | -1 | — | +1 | — | -3 | -6 | -9 | -11 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Zürich | 88 | 85 | 82 | 79 | 79 | 78 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -12 | -11 | -7 | -3 | -1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Zürich | 78 | 79 | 82 | 85 | 88 | 88 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +1 | — | -3 | -6 | -9 | -11 |
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. Zürich trends → · Castries trends →
Methodology & sources
Zürich
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Zürich / Fluntern, about 2 km from the city centre.
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 Zürich · change Castries → · Zürich page · Castries page