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Xi’an vs Castries
Comparing Xi’an change · Castries change
Castries is the warmer of the two — about 12°C on the annual average; Castries is the wetter, with 1420 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Xi’an and Castries, in everyday terms.
Summers
Xi’an has much hotter summers
Xi’an: Hot
Castries: Warm
Winters
Castries has far milder winters
Xi’an: Cold
Castries: Stays warm
Rain & snow
Castries is much wetter
Xi’an: Fairly dry
Castries: Very wet
Sky
Castries is sunnier
Xi’an: Often cloudy
Castries: Fairly sunny
Month-by-month charts
Temperature
Castries is the warmer of the two — about 12°C on the annual average.
Precipitation
Castries is the wetter — about 1420 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Xi’an | 5 | 10 | 15 | 22 | 27 | 32 | 33 | 31 | 26 | 19 | 13 | 7 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | +22 | +17 | +12 | +5 | +1 | -4 | -4 | -2 | +3 | +9 | +15 | +21 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Xi’an | 5 | 10 | 15 | 22 | 27 | 32 |
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Difference | +22 | +17 | +12 | +5 | +1 | -4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Xi’an | 33 | 31 | 26 | 19 | 13 | 7 |
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Difference | -4 | -2 | +3 | +9 | +15 | +21 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Xi’an | -3 | 0 | 5 | 11 | 16 | 20 | 23 | 21 | 17 | 10 | 4 | -2 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +29 | +25 | +20 | +15 | +11 | +7 | +5 | +6 | +11 | +17 | +24 | +28 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Xi’an | -3 | 0 | 5 | 11 | 16 | 20 |
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Difference | +29 | +25 | +20 | +15 | +11 | +7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Xi’an | 23 | 21 | 17 | 10 | 4 | -2 |
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Difference | +5 | +6 | +11 | +17 | +24 | +28 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Xi’an | 7 | 8 | 27 | 36 | 51 | 64 | 96 | 84 | 80 | 62 | 21 | 7 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +107 | +68 | +39 | +53 | +63 | +70 | +120 | +207 | +144 | +184 | +221 | +142 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Xi’an | 7 | 8 | 27 | 36 | 51 | 64 |
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Difference | +107 | +68 | +39 | +53 | +63 | +70 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Xi’an | 96 | 84 | 80 | 62 | 21 | 7 |
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Difference | +120 | +207 | +144 | +184 | +221 | +142 |
Cloud cover (%) Xi’an runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Xi’an | 56 | 64 | 69 | 69 | 72 | 71 | 67 | 65 | 69 | 64 | 52 | 50 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -17 | -25 | -27 | -20 | -19 | -12 | -18 | -19 | -18 | -13 | -6 | -9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Xi’an | 56 | 64 | 69 | 69 | 72 | 71 |
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Difference | -17 | -25 | -27 | -20 | -19 | -12 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Xi’an | 67 | 65 | 69 | 64 | 52 | 50 |
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Difference | -18 | -19 | -18 | -13 | -6 | -9 |
Relative humidity (%) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Xi’an | 59 | 58 | 54 | 50 | 49 | 51 | 59 | 61 | 65 | 64 | 63 | 59 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +16 | +17 | +21 | +26 | +28 | +27 | +19 | +18 | +14 | +15 | +16 | +17 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Xi’an | 59 | 58 | 54 | 50 | 49 | 51 |
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Difference | +16 | +17 | +21 | +26 | +28 | +27 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Xi’an | 59 | 61 | 65 | 64 | 63 | 59 |
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Difference | +19 | +18 | +14 | +15 | +16 | +17 |
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. Xi’an trends → · Castries trends →
Xi’an is projected to shift from BSk to Cwa by the 2071–2099 window (SSP2-4.5).
Methodology & sources
Xi’an
Temperature & precipitation — 1991–2020 normals computed from 18 years of daily observations at Xian, a weather station, about 5 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 Xi’an · change Castries → · Xi’an page · Castries page