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Whistler vs Castries
Comparing Whistler change · Castries change
Castries is the warmer of the two — about 20°C on the annual average; Castries is the wetter, with 681 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Whistler and Castries, in everyday terms.
Summers
Castries has much hotter summers
Whistler: Mild
Castries: Warm
Winters
Castries has far milder winters
Whistler: Cold
Castries: Stays warm
Rain & snow
Castries is wetter
Whistler: Wet
Castries: Very wet
Sky
Castries is sunnier
Whistler: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 20°C on the annual average.
Precipitation
Castries is the wetter — about 681 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 0 | 3 | 7 | 12 | 17 | 20 | 24 | 24 | 20 | 11 | 4 | -0 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +27 | +24 | +20 | +16 | +11 | +8 | +4 | +4 | +9 | +18 | +24 | +27 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 0 | 3 | 7 | 12 | 17 | 20 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +27 | +24 | +20 | +16 | +11 | +8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 24 | 24 | 20 | 11 | 4 | -0 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +4 | +4 | +9 | +18 | +24 | +27 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | -5 | -4 | -2 | 1 | 4 | 8 | 10 | 10 | 6 | 2 | -1 | -5 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +30 | +29 | +28 | +25 | +22 | +19 | +17 | +18 | +21 | +25 | +29 | +31 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | -5 | -4 | -2 | 1 | 4 | 8 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +30 | +29 | +28 | +25 | +22 | +19 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 10 | 10 | 6 | 2 | -1 | -5 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +17 | +18 | +21 | +25 | +29 | +31 |
Precipitation (mm) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 184 | 95 | 116 | 80 | 58 | 57 | 39 | 53 | 77 | 153 | 205 | 164 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | -71 | -20 | -50 | +10 | +56 | +76 | +177 | +238 | +147 | +93 | +38 | -15 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 184 | 95 | 116 | 80 | 58 | 57 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | -71 | -20 | -50 | +10 | +56 | +76 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 39 | 53 | 77 | 153 | 205 | 164 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +177 | +238 | +147 | +93 | +38 | -15 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 107 | 61 | 51 | 10 | 0 | 0 | 0 | 0 | 0 | 5 | 59 | 114 |
| Castries | — | — | — | — | — | — | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 107 | 61 | 51 | 10 | 0 | 0 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 0 | 0 | 0 | 5 | 59 | 114 |
| Castries | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Whistler runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 71 | 68 | 73 | 72 | 70 | 71 | 56 | 55 | 58 | 69 | 73 | 71 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -32 | -30 | -31 | -23 | -17 | -12 | -6 | -9 | -7 | -18 | -27 | -30 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 71 | 68 | 73 | 72 | 70 | 71 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -32 | -30 | -31 | -23 | -17 | -12 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 56 | 55 | 58 | 69 | 73 | 71 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -6 | -9 | -7 | -18 | -27 | -30 |
Relative humidity (%) Whistler runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Whistler | 96 | 97 | 97 | 95 | 86 | 80 | 77 | 78 | 80 | 88 | 95 | 96 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | -20 | -22 | -22 | -19 | -8 | -1 | +1 | +1 | -1 | -8 | -16 | -19 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Whistler | 96 | 97 | 97 | 95 | 86 | 80 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | -20 | -22 | -22 | -19 | -8 | -1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Whistler | 77 | 78 | 80 | 88 | 95 | 96 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +1 | +1 | -1 | -8 | -16 | -19 |
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. Whistler trends → · Castries trends →
Methodology & sources
Whistler
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Whistler, 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.
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 Whistler · change Castries → · Whistler page · Castries page