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Castries vs Christchurch
Comparing Castries change · Christchurch change
Castries is the warmer of the two — about 16°C on the annual average; Castries is the wetter, with 1410 mm more rain a year, and Castries the sunnier.
How the seasons compare
The differences between Castries and Christchurch, in everyday terms.
Summers
Castries has much hotter summers
Castries: Warm
Christchurch: Mild
Winters
Castries has far milder winters
Castries: Stays warm
Christchurch: Chilly
Rain & snow
Castries is much wetter
Castries: Very wet
Christchurch: Fairly dry
Sky
Castries is sunnier
Castries: Fairly sunny
Christchurch: Often cloudy
Month-by-month charts
Temperature
Castries is the warmer of the two — about 16°C on the annual average.
Precipitation
Castries is the wetter — about 1410 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 28 | 27 |
| Christchurch | 22 | 22 | 20 | 17 | 15 | 12 | 11 | 12 | 15 | 17 | 19 | 21 |
| Difference | -4 | -4 | -7 | -10 | -14 | -17 | -17 | -16 | -14 | -12 | -9 | -6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 27 | 27 | 27 | 28 | 28 | 28 |
| Christchurch | 22 | 22 | 20 | 17 | 15 | 12 |
| Difference | -4 | -4 | -7 | -10 | -14 | -17 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 28 | 29 | 29 | 29 | 28 | 27 |
| Christchurch | 11 | 12 | 15 | 17 | 19 | 21 |
| Difference | -17 | -16 | -14 | -12 | -9 | -6 |
Avg low (°C) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
| Christchurch | 11 | 11 | 9 | 6 | 4 | 1 | 1 | 2 | 3 | 5 | 7 | 10 |
| Difference | -14 | -14 | -16 | -20 | -23 | -26 | -27 | -26 | -24 | -22 | -20 | -16 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 26 | 25 | 25 | 26 | 27 | 27 |
| Christchurch | 11 | 11 | 9 | 6 | 4 | 1 |
| Difference | -14 | -14 | -16 | -20 | -23 | -26 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 27 | 28 | 28 | 28 | 27 | 26 |
| Christchurch | 1 | 2 | 3 | 5 | 7 | 10 |
| Difference | -27 | -26 | -24 | -22 | -20 | -16 |
Precipitation (mm) Castries runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 | 216 | 291 | 224 | 246 | 243 | 149 |
| Christchurch | 37 | 34 | 40 | 51 | 53 | 66 | 54 | 51 | 36 | 47 | 39 | 44 |
| Difference | -76 | -42 | -26 | -39 | -60 | -68 | -163 | -240 | -188 | -200 | -203 | -105 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 113 | 76 | 66 | 90 | 114 | 134 |
| Christchurch | 37 | 34 | 40 | 51 | 53 | 66 |
| Difference | -76 | -42 | -26 | -39 | -60 | -68 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 216 | 291 | 224 | 246 | 243 | 149 |
| Christchurch | 54 | 51 | 36 | 47 | 39 | 44 |
| Difference | -163 | -240 | -188 | -200 | -203 | -105 |
Cloud cover (%) Christchurch runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 | 50 | 46 | 51 | 51 | 46 | 41 |
| Christchurch | 69 | 65 | 66 | 67 | 64 | 68 | 66 | 68 | 69 | 70 | 71 | 72 |
| Difference | +31 | +26 | +24 | +18 | +12 | +9 | +16 | +21 | +18 | +18 | +25 | +32 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 38 | 39 | 42 | 49 | 52 | 59 |
| Christchurch | 69 | 65 | 66 | 67 | 64 | 68 |
| Difference | +31 | +26 | +24 | +18 | +12 | +9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 50 | 46 | 51 | 51 | 46 | 41 |
| Christchurch | 66 | 68 | 69 | 70 | 71 | 72 |
| Difference | +16 | +21 | +18 | +18 | +25 | +32 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 | 79 | 79 | 79 | 79 | 79 | 77 |
| Christchurch | 66 | 68 | 72 | 79 | 84 | 88 | 88 | 86 | 82 | 78 | 73 | 69 |
| Difference | -9 | -7 | -2 | +3 | +7 | +9 | +9 | +7 | +4 | -1 | -6 | -8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Castries | 76 | 75 | 75 | 76 | 77 | 79 |
| Christchurch | 66 | 68 | 72 | 79 | 84 | 88 |
| Difference | -9 | -7 | -2 | +3 | +7 | +9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Castries | 79 | 79 | 79 | 79 | 79 | 77 |
| Christchurch | 88 | 86 | 82 | 78 | 73 | 69 |
| Difference | +9 | +7 | +4 | -1 | -6 | -8 |
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. Castries trends → · Christchurch trends →
Methodology & sources
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.
Christchurch
Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at Christchurch Aero Aws, a weather station, about 11 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 Castries · change Christchurch → · Castries page · Christchurch page