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Gruyères vs Castries
Comparing Gruyères change · Castries change
Castries is the warmer of the two — about 37°F on the annual average; Castries is the wetter, with 26 in more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Gruyères and Castries, in everyday terms.
Summers
Castries has much hotter summers
Gruyères: Mild
Castries: Warm
Winters
Castries has far milder winters
Gruyères: Cold
Castries: Stays warm
Rain & snow
Castries is wetter
Gruyères: Wet
Castries: Very wet
Sky
Castries is sunnier
Gruyères: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 37°F on the annual average.
Precipitation
Castries is the wetter — about 26 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gruyères | 37 | 39 | 47 | 54 | 62 | 68 | 72 | 71 | 64 | 56 | 45 | 38 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +44 | +41 | +33 | +27 | +21 | +15 | +11 | +12 | +20 | +28 | +38 | +43 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Gruyères | 37 | 39 | 47 | 54 | 62 | 68 |
| Castries | 80 | 80 | 80 | 82 | 83 | 83 |
| Difference | +44 | +41 | +33 | +27 | +21 | +15 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Gruyères | 72 | 71 | 64 | 56 | 45 | 38 |
| Castries | 83 | 84 | 84 | 83 | 83 | 81 |
| Difference | +11 | +12 | +20 | +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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gruyères | 22 | 22 | 28 | 33 | 41 | 47 | 50 | 50 | 44 | 38 | 30 | 24 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +56 | +55 | +49 | +45 | +39 | +34 | +31 | +32 | +38 | +44 | +51 | +55 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Gruyères | 22 | 22 | 28 | 33 | 41 | 47 |
| Castries | 78 | 77 | 78 | 79 | 80 | 81 |
| Difference | +56 | +55 | +49 | +45 | +39 | +34 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Gruyères | 50 | 50 | 44 | 38 | 30 | 24 |
| Castries | 81 | 82 | 82 | 82 | 81 | 79 |
| Difference | +31 | +32 | +38 | +44 | +51 | +55 |
Precipitation (in) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gruyères | 3.7 | 3 | 3.4 | 3.3 | 5.1 | 5 | 5.7 | 5.8 | 4 | 3.8 | 3.8 | 4.5 |
| 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 | +0.7 | -0.1 | -0.8 | +0.2 | -0.6 | +0.2 | +2.8 | +5.7 | +4.8 | +5.9 | +5.7 | +1.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Gruyères | 3.7 | 3 | 3.4 | 3.3 | 5.1 | 5 |
| Castries | 4.5 | 3 | 2.6 | 3.5 | 4.5 | 5.3 |
| Difference | +0.7 | -0.1 | -0.8 | +0.2 | -0.6 | +0.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Gruyères | 5.7 | 5.8 | 4 | 3.8 | 3.8 | 4.5 |
| Castries | 8.5 | 11.5 | 8.8 | 9.7 | 9.6 | 5.9 |
| Difference | +2.8 | +5.7 | +4.8 | +5.9 | +5.7 | +1.3 |
Cloud cover (%) Gruyères runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gruyères | 68 | 69 | 68 | 69 | 72 | 65 | 59 | 59 | 61 | 66 | 71 | 71 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -30 | -30 | -27 | -20 | -20 | -7 | -10 | -12 | -10 | -15 | -25 | -31 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Gruyères | 68 | 69 | 68 | 69 | 72 | 65 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -30 | -30 | -27 | -20 | -20 | -7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Gruyères | 59 | 59 | 61 | 66 | 71 | 71 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -10 | -12 | -10 | -15 | -25 | -31 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gruyères | 84 | 84 | 81 | 78 | 77 | 76 | 72 | 71 | 76 | 80 | 84 | 84 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -9 | -9 | -6 | -2 | — | +3 | +6 | +8 | +3 | — | -5 | -7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Gruyères | 84 | 84 | 81 | 78 | 77 | 76 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -9 | -9 | -6 | -2 | — | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Gruyères | 72 | 71 | 76 | 80 | 84 | 84 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +6 | +8 | +3 | — | -5 | -7 |
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. Gruyères trends → · Castries trends →
Methodology & sources
Gruyères
Temperature & precipitation — the official 1991–2020 climate normals from a national meteorological service, measured at Château-d'oex, about 12 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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