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Andermatt vs Castries
Comparing Andermatt change · Castries change
Castries is the warmer of the two — about 36°F on the annual average; Castries is the wetter, with 33 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Andermatt and Castries, in everyday terms.
Summers
Castries has much hotter summers
Andermatt: Mild
Castries: Warm
Winters
Castries has far milder winters
Andermatt: Cold
Castries: Stays warm
Rain & snow
Castries is wetter
Andermatt: Wet
Castries: Very wet
Sky
Castries is sunnier
Andermatt: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 36°F on the annual average.
Precipitation
Castries is the wetter — about 33 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Andermatt | 37 | 38 | 46 | 53 | 60 | 68 | 71 | 70 | 62 | 55 | 44 | 38 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +43 | +42 | +35 | +29 | +22 | +15 | +12 | +14 | +22 | +28 | +38 | +43 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Andermatt | 37 | 38 | 46 | 53 | 60 | 68 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +43 | +42 | +35 | +29 | +22 | +15 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Andermatt | 71 | 70 | 62 | 55 | 44 | 38 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +12 | +14 | +22 | +28 | +38 | +43 |
Avg low (°F) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Andermatt | 25 | 24 | 30 | 35 | 42 | 48 | 52 | 52 | 46 | 40 | 32 | 26 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +53 | +53 | +48 | +43 | +38 | +33 | +29 | +30 | +36 | +42 | +49 | +53 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Andermatt | 25 | 24 | 30 | 35 | 42 | 48 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +53 | +53 | +48 | +43 | +38 | +33 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Andermatt | 52 | 52 | 46 | 40 | 32 | 26 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +29 | +30 | +36 | +42 | +49 | +53 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Andermatt | 2.6 | 1.9 | 2.6 | 3.3 | 4.3 | 4.4 | 4.3 | 5.2 | 4.4 | 4.2 | 4.2 | 2.9 |
| 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 | +1.9 | +1.1 | — | +0.3 | +0.2 | +0.8 | +4.2 | +6.2 | +4.4 | +5.5 | +5.4 | +3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Andermatt | 2.6 | 1.9 | 2.6 | 3.3 | 4.3 | 4.4 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +1.9 | +1.1 | — | +0.3 | +0.2 | +0.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Andermatt | 4.3 | 5.2 | 4.4 | 4.2 | 4.2 | 2.9 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +4.2 | +6.2 | +4.4 | +5.5 | +5.4 | +3 |
Cloud cover (%) Andermatt runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Andermatt | 68 | 70 | 72 | 75 | 75 | 69 | 62 | 61 | 63 | 65 | 70 | 70 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -29 | -31 | -30 | -25 | -23 | -11 | -12 | -15 | -13 | -14 | -24 | -29 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Andermatt | 68 | 70 | 72 | 75 | 75 | 69 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -29 | -31 | -30 | -25 | -23 | -11 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Andermatt | 62 | 61 | 63 | 65 | 70 | 70 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -12 | -15 | -13 | -14 | -24 | -29 |
Relative humidity (%) Andermatt runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Andermatt | 89 | 89 | 90 | 86 | 81 | 79 | 78 | 79 | 82 | 86 | 90 | 89 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -13 | -14 | -15 | -10 | -4 | — | +1 | — | -4 | -7 | -11 | -12 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Andermatt | 89 | 89 | 90 | 86 | 81 | 79 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -13 | -14 | -15 | -10 | -4 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Andermatt | 78 | 79 | 82 | 86 | 90 | 89 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +1 | — | -4 | -7 | -11 | -12 |
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. Andermatt trends → · Castries trends →
Methodology & sources
Andermatt
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Disentis, about 21 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.
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